{"id":170921,"date":"2023-09-22T10:09:26","date_gmt":"2023-09-22T09:09:26","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=170921"},"modified":"2023-10-30T20:06:30","modified_gmt":"2023-10-30T19:06:30","slug":"data-lake-definition-and-use","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/data-lake-definition-and-use","title":{"rendered":"Data Lake: Definition and use"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"170921\" class=\"elementor elementor-170921\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-40c8dce4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"40c8dce4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7f0970fc\" data-id=\"7f0970fc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7937e67 elementor-widget elementor-widget-heading\" data-id=\"7937e67\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">A data lake is a platform for storing and analyzing data, with no constraints on type or structure. Find out all you need to know about this indispensable tool for Data Scientists: definition, operation, use cases, training...<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3c9758ac elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3c9758ac\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-41fd774a\" data-id=\"41fd774a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-14be8365 elementor-widget elementor-widget-text-editor\" data-id=\"14be8365\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>A <strong>Data Lake<\/strong> is a storage repository that can hold vast amounts of structured, unstructured, or semi-structured data in its native format. Like a real lake,<a href=\"https:\/\/datascientest.com\/en\/dataflow-power-bi-everything-you-need-to-know-about-the-self-service-etl-tool\"> data flows into it from various sources in real-time.<\/a><\/p><p>This platform imposes no constraints in terms of file size or data category, allowing high-performance data analysis and native integration.<\/p><p>Different types of data analysis can be performed, such as <a href=\"https:\/\/datascientest.com\/en\/big-data-definition-technologies-uses-and-training\">Big Data processing,<\/a> real-time analytics, Machine Learning, as well as creating dashboards and data visualizations.<\/p><p>Within the Data Lake, each data element receives a unique identifier and is associated with a set of metadata. The architecture is not hierarchical, <a href=\"https:\/\/datascientest.com\/en\/data-warehouse-2\">unlike that of a Data Warehouse.<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-53e8d286 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"53e8d286\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6b1f09ce\" data-id=\"6b1f09ce\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4ae69938 elementor-widget elementor-widget-video\" data-id=\"4ae69938\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=LxcH6z8TFpI&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-wrapper{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .elementor-open-inline .elementor-custom-embed-image-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:50%}.elementor-widget-video .elementor-custom-embed-image-overlay{cursor:pointer;text-align:center}.elementor-widget-video .elementor-custom-embed-image-overlay:hover .elementor-custom-embed-play i{opacity:1}.elementor-widget-video .elementor-custom-embed-image-overlay img{display:block;width:100%;aspect-ratio:var(--video-aspect-ratio);-o-object-fit:cover;object-fit:cover;-o-object-position:center center;object-position:center center}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-custom-embed-image-overlay{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-custom-embed-image-overlay img{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-248342c0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"248342c0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-332d3c20\" data-id=\"332d3c20\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-19b171a7 elementor-widget elementor-widget-heading\" data-id=\"19b171a7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Why use a Data Lake?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c8de086 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c8de086\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-240d6b42\" data-id=\"240d6b42\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-55abc59e elementor-widget elementor-widget-text-editor\" data-id=\"55abc59e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>A Data Lake enables the cost-effective storage of various types of data for later analysis, providing an<a href=\"https:\/\/datascientest.com\/en\/data-scientist-job-all-about\"> initial overview for Data Scientists.<\/a><\/p><p>Data can be stored without a predefined model, regardless of their structure. The Data Lake delivers agility for organizations.<\/p><p><a href=\"https:\/\/datascientest.com\/en\/artificial-intelligence-definition\">Artificial intelligence<\/a> and <a href=\"https:\/\/datascientest.com\/en\/machine-learning-python-where-to-start\">Machine Learning<\/a> allow for highly advanced predictive analysis. It is possible to analyze data from new sources such as log files, clickstreams, social media, or IoT devices.<\/p><p>With a Data Lake, a company can identify and seize opportunities. For example, it is possible to attract and retain new customers, increase productivity, perform predictive maintenance, or make better decisions.<\/p><p>By implementing it, the company gains a competitive advantage.<\/p><p>According to a survey conducted by Aberdeen, companies that have implemented a Data Lake outperform similar organizations in terms of revenue growth by 9%.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2c0a15b3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2c0a15b3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1b9fd294\" data-id=\"1b9fd294\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3b6eb3da elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"3b6eb3da\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Learn how to use a Data Lake<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3347b882 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3347b882\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3cc8a8ba\" data-id=\"3cc8a8ba\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1ff42efe elementor-widget elementor-widget-heading\" data-id=\"1ff42efe\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Data Lake architecture and operation<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-182665ae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"182665ae\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-34a8953c\" data-id=\"34a8953c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-48203288 elementor-widget elementor-widget-text-editor\" data-id=\"48203288\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Initially, data is ingested from various sources such as databases, web servers, or IoT devices using connectors. It can be loaded in batches or in real-time.<\/p><p>The storage provided by a Data Lake is scalable and allows for quick access for data exploration. Once the data is stored, it can be transformed into a structured form to facilitate analysis. Data can be tagged to associate metadata with it.<\/p><p><a href=\"https:\/\/datascientest.com\/en\/sql-vs-nosql\">SQL or NoSQL queries<\/a>, or even software like Excel, can then be used to analyze the data. Whenever a question arises within the company, it is possible to query the Data Lake by analyzing only a subset of relevant data. The Data Lake also enables data management and governance.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-89b6f17 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"89b6f17\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6605ecf8\" data-id=\"6605ecf8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1887553d elementor-widget elementor-widget-video\" data-id=\"1887553d\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/IPkQpBdde5Y&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4a069a02 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4a069a02\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-426c80b4\" data-id=\"426c80b4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7499cfe elementor-widget elementor-widget-heading\" data-id=\"7499cfe\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Advantages and disadvantages of the Data Lake<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5d852426 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d852426\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1db69872\" data-id=\"1db69872\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88fd835 elementor-widget elementor-widget-text-editor\" data-id=\"88fd835\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>A<strong> Data Lake<\/strong> allows for storing and analyzing data while offering cost-effective flexibility. It enables extracting value from any type of data. The main strength of a Data Lake is the ability to centralize content from various sources. All users within a company can access it, even if they are geographically separated.<\/p><p>However, the <strong>Data Lake<\/strong> also has drawbacks. It is a platform that can be challenging to manage and may lose relevance over time. Storing unstructured data can quickly lead to chaos if not properly managed.<\/p><p>The use of such a platform can also be costly and pose cybersecurity risks if not designed methodically. Data stored without precautions can also lead to privacy or compliance issues.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-72f31ca1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"72f31ca1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-49ee626e\" data-id=\"49ee626e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6d515ffb elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"6d515ffb\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Start your Data Lake Training<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7255d23a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7255d23a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5fa84dcd\" data-id=\"5fa84dcd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-12997ef1 elementor-widget elementor-widget-heading\" data-id=\"12997ef1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Data Lake vs. Data Warehouse: what are the differences?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-463d943c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"463d943c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1e879c28\" data-id=\"1e879c28\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-65c70883 elementor-widget elementor-widget-text-editor\" data-id=\"65c70883\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Data Lakes and Data Warehouses<\/strong> serve the purpose of storing and processing data but have significant differences.<\/p><p>One of the key distinctions of a Data Lake is its retention of all data. A Data Warehouse retains only data that can be used to answer specific queries or generate reports, simplifying storage and saving space.<\/p><p>On the other hand, a Data Lake retains all data, even if it&#8217;s not immediately useful. This is made possible by the hardware used, which is typically quite different from that of a Data Warehouse and more cost-effective.<\/p><p>Another difference is that a <strong>Data Lake<\/strong> supports all types of data without exception, regardless of their source and structure. Data is stored in its raw form and transformed when needed.<\/p><p>In contrast, Data Warehouses typically focus on data extracted from transactional systems, such as quantitative metrics and attributes describing them. Non-traditional sources like web server logs, sensor data, social media, text, and images are often ignored because they are expensive and challenging to store.<\/p><p>Data Lakes also offer greater adaptability to change. Developing and configuring a Data Warehouse can be time-consuming, and any changes may require significant time and resources.<\/p><p>This is not the case with Data Lakes, as all data is stored in its raw form. This allows for innovative data exploration and the automation of schemas if they prove to be relevant.<\/p><p>Lastly,<strong> Data Lakes<\/strong> tend to provide faster analysis results. Users can access all types of data before it has been transformed, cleaned, or structured.<\/p><p>The downside is that analyzing data on a Data Lake requires more technical skills. These platforms are not as accessible to non-technical business users as Data Warehouses, making them more suitable for Data Scientists.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7e6e9293 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7e6e9293\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b4725f3\" data-id=\"b4725f3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7887f3fc elementor-widget elementor-widget-video\" data-id=\"7887f3fc\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=GHpcLEkkmLc&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2993823a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2993823a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5ece5b61\" data-id=\"5ece5b61\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-57bc0779 elementor-widget elementor-widget-heading\" data-id=\"57bc0779\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Data warehouses in the cloud<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-13c79075 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"13c79075\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1eab993a\" data-id=\"1eab993a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40411a19 elementor-widget elementor-widget-text-editor\" data-id=\"40411a19\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Data Lakes<\/strong> can be deployed on-premises or in the cloud. Opting for cloud computing offers superior performance, scalability, and increased reliability.<\/p><p>Users can also benefit from various analytical engines. Security is enhanced, deployment is accelerated, and feature updates are more frequent. Costs are typically proportional to actual usage.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-29009f65 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"29009f65\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6c84f7e8\" data-id=\"6c84f7e8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4998678a elementor-widget elementor-widget-heading\" data-id=\"4998678a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The importance of data lakes in business<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1048b454 elementor-widget elementor-widget-text-editor\" data-id=\"1048b454\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><a href=\"https:\/\/datascientest.com\/en\/cloud-data-engineer-course-the-best-options\">Companies striving to align with Big Data<\/a> are always looking for new ways to efficiently manage data. However, large datasets are not always easy to analyze. Adopting a Data Lakes approach can address these issues and help with other aspects of their business, such as improving customer relations, research and development activities, and operational efficiency.<\/p><p>To do this, a company can effectively implement Data Lakes by following these steps:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70756c36 elementor-widget elementor-widget-heading\" data-id=\"70756c36\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-small\">Understanding the benefits of data lakes<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f2e5076 elementor-widget elementor-widget-text-editor\" data-id=\"7f2e5076\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">A data lake provides key features that will enable a company to discover new ways to enhance analysis and inform executive decision-making. A significant amount and variety of data need to be managed.<a href=\"https:\/\/datascientest.com\/en\/chief-data-officer-skills-missions-training-salary\"> Data governance is crucial<\/a> to standardize information from various sources, ensure their accuracy and transparency, and prevent misuse.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b03b9ac elementor-widget elementor-widget-heading\" data-id=\"1b03b9ac\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-small\">Harnessing data lakes for business intelligence<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-513eab4e elementor-widget elementor-widget-text-editor\" data-id=\"513eab4e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Business Intelligence is an effective approach that allows experts in a company to use advanced methodologies to work with large volumes of raw data. This enables them to gain relevant insights that can improve decision-making and uncover new growth opportunities.<\/p><p>A data lake can enhance a BI solution by providing greater data processing potential. It can serve as a centralized data source for building a Data Warehouse and function as a direct data source for BI.<\/p><p>Data lakes have applications in data science and machine learning engineering where massive datasets are the backbone of technical solutions.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24db4338 elementor-widget elementor-widget-heading\" data-id=\"24db4338\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Add a structure<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2cdedb46 elementor-widget elementor-widget-text-editor\" data-id=\"2cdedb46\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">To make sense of the vast amounts of unstructured data stored in a data lake, a company needs to create some structure, such as file metadata, word counts, etc. A data lake provides a single platform where the company can apply structure to a variety of datasets, enabling it to process combined data in advanced analytical scenarios.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3c63993f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3c63993f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-32d01f9a\" data-id=\"32d01f9a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7f8df3cb elementor-widget elementor-widget-heading\" data-id=\"7f8df3cb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How to learn how to use a Data Lake<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1c8633c7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1c8633c7\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5c88e336\" data-id=\"5c88e336\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1314e499 elementor-widget elementor-widget-text-editor\" data-id=\"1314e499\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>A data lake is a valuable asset for businesses in all industries. Therefore, mastering this tool can easily lead to job opportunities in any field.<\/p><p>To become an expert in this area, you can turn to <strong>DataScientest&#8217;s training programs.<\/strong> Data Lake is essential in Data Science, and you will learn how to use it through our various courses: Data Scientist, Data Engineer, Data Analyst, Data Management, or Machine Learning Engineer.<\/p><p>All our training programs offer an innovative approach to Blended Learning, halfway between in-person and distance learning, and can be completed in an intensive BootCamp or Continuing Education format. At the end of the program, learners receive a diploma certified by the University of Sorbonne.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d573994 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d573994\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5a040128\" data-id=\"5a040128\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7290a3ca elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"7290a3ca\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Start your Data Lake Training<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-68cedd50 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"68cedd50\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-623cbacd\" data-id=\"623cbacd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6c3e7b6c elementor-widget elementor-widget-text-editor\" data-id=\"6c3e7b6c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>You know all about the Data Lake. Discover our <a href=\"https:\/\/datascientest.com\/en\/database-what-is-it\">complete dossier on databases,<\/a> and our <a href=\"https:\/\/datascientest.com\/en\/professional-data-science-training-the-best-options\">introduction to DataScience.<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5d93ee94 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d93ee94\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-69a586f4\" data-id=\"69a586f4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>A data lake is a platform for storing and analyzing data, with no constraints on type or structure. Find out all you need to know about this indispensable tool for Data Scientists: definition, operation, use cases, training&#8230; A Data Lake is a storage repository that can hold vast amounts of structured, unstructured, or semi-structured data [&hellip;]<\/p>\n","protected":false},"author":67,"featured_media":170923,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2412],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Data Lake: Definition and use<\/title>\n<meta name=\"description\" content=\"When it comes to the definition of a Data Lake, even the best Data Scientists and Engineers often make the mistake that...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/en\/data-lake-definition-and-use\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data Lake: Definition and use\" \/>\n<meta property=\"og:description\" content=\"A data lake is a platform for storing and analyzing data, with no constraints on type or structure. 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