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<div><div data-sp-canvascontrol="" data-sp-canvasdataversion="1.0" data-sp-controldata="&#123;&quot;position&quot;&#58;&#123;&quot;layoutIndex&quot;&#58;1,&quot;zoneIndex&quot;&#58;1,&quot;sectionIndex&quot;&#58;1,&quot;sectionFactor&quot;&#58;12,&quot;controlIndex&quot;&#58;0&#125;,&quot;controlType&quot;&#58;3,&quot;id&quot;&#58;&quot;d5ed94d9-6ec8-48aa-a60f-8ea510f7850e&quot;,&quot;webPartId&quot;&#58;&quot;d1d91016-032f-456d-98a4-721247c305e8&quot;,&quot;rteInstanceId&quot;&#58;&quot;aafcc3c5-5a62-4e09-9dad-8a77b9f1631d&quot;,&quot;addedFromPersistedData&quot;&#58;true,&quot;reservedHeight&quot;&#58;453,&quot;reservedWidth&quot;&#58;1178&#125;"><div data-sp-webpart="" data-sp-webpartdataversion="1.11" data-sp-webpartdata="&#123;&quot;id&quot;&#58;&quot;d1d91016-032f-456d-98a4-721247c305e8&quot;,&quot;instanceId&quot;&#58;&quot;d5ed94d9-6ec8-48aa-a60f-8ea510f7850e&quot;,&quot;title&quot;&#58;&quot;Image&quot;,&quot;description&quot;&#58;&quot;Add an image, picture or photo to your page including text overlays and ability to crop and resize images.&quot;,&quot;audiences&quot;&#58;[],&quot;serverProcessedContent&quot;&#58;&#123;&quot;htmlStrings&quot;&#58;&#123;&#125;,&quot;searchablePlainTexts&quot;&#58;&#123;&#125;,&quot;imageSources&quot;&#58;&#123;&quot;imageSource&quot;&#58;&quot;/sites/M365-CDN/SiteAssets/SitePages/Content-20794/1504493581-sql.jpg&quot;&#125;,&quot;links&quot;&#58;&#123;&#125;,&quot;customMetadata&quot;&#58;&#123;&quot;imageSource&quot;&#58;&#123;&quot;siteId&quot;&#58;&quot;40ef054e-5ec7-4552-ac92-09bbd4faa5e1&quot;,&quot;webId&quot;&#58;&quot;35f81bac-1b1d-4f8c-a038-0302a1a6ae55&quot;,&quot;listId&quot;&#58;&quot;870ffa3e-eb32-4905-82ab-9e57adb99968&quot;,&quot;uniqueId&quot;&#58;&quot;581132da-17d8-4135-b2c5-40038c4350ec&quot;,&quot;width&quot;&#58;2048,&quot;height&quot;&#58;1429&#125;&#125;&#125;,&quot;dataVersion&quot;&#58;&quot;1.11&quot;,&quot;properties&quot;&#58;&#123;&quot;id&quot;&#58;&quot;3e0ad014-478f-47f6-b67b-4f3ee51c2064&quot;,&quot;linkUrl&quot;&#58;&quot;&quot;,&quot;isInlineImage&quot;&#58;true,&quot;siteId&quot;&#58;&quot;40ef054e-5ec7-4552-ac92-09bbd4faa5e1&quot;,&quot;webId&quot;&#58;&quot;35f81bac-1b1d-4f8c-a038-0302a1a6ae55&quot;,&quot;listId&quot;&#58;&quot;870ffa3e-eb32-4905-82ab-9e57adb99968&quot;,&quot;uniqueId&quot;&#58;&quot;581132da-17d8-4135-b2c5-40038c4350ec&quot;,&quot;imgHeight&quot;&#58;1429,&quot;imgWidth&quot;&#58;2048,&quot;imageSourceType&quot;&#58;2,&quot;alignment&quot;&#58;&quot;Center&quot;,&quot;fileName&quot;&#58;&quot;sql.jpg&quot;,&quot;fixAspectRatio&quot;&#58;false,&quot;overlayText&quot;&#58;&quot;&quot;,&quot;altText&quot;&#58;&quot;&quot;,&quot;resizeCoefficient&quot;&#58;0.51952461799660443,&quot;resizeDesiredWidth&quot;&#58;612&#125;,&quot;containsDynamicDataSource&quot;&#58;false&#125;"><div data-sp-componentid="d1d91016-032f-456d-98a4-721247c305e8"></div><div data-sp-htmlproperties=""><img data-sp-prop-name="imageSource" src="/sites/M365-CDN/SiteAssets/SitePages/Content-20794/1504493581-sql.jpg" data-sp-cust-siteId="40ef054e-5ec7-4552-ac92-09bbd4faa5e1" data-sp-cust-webId="35f81bac-1b1d-4f8c-a038-0302a1a6ae55" data-sp-cust-listId="870ffa3e-eb32-4905-82ab-9e57adb99968" data-sp-cust-uniqueId="581132da-17d8-4135-b2c5-40038c4350ec" data-sp-cust-width="2048" data-sp-cust-height="1429" /></div></div></div><div data-sp-canvascontrol="" data-sp-canvasdataversion="1.0" data-sp-controldata="&#123;&quot;controlType&quot;&#58;4,&quot;id&quot;&#58;&quot;aafcc3c5-5a62-4e09-9dad-8a77b9f1631d&quot;,&quot;position&quot;&#58;&#123;&quot;layoutIndex&quot;&#58;1,&quot;zoneIndex&quot;&#58;1,&quot;sectionIndex&quot;&#58;1,&quot;sectionFactor&quot;&#58;12,&quot;controlIndex&quot;&#58;1&#125;,&quot;addedFromPersistedData&quot;&#58;true&#125;"><div data-sp-rte=""><p>SQL Temp Tables are a type of table in a database that is used to store and manipulate intermediate data during the process of running a query. This type of table is also referred to as a temporary table. These tables are created during the execution of a query and are automatically destroyed once the query has ended. SQL Temp Tables are primarily used to store data that is needed for complex calculations or data processing that requires multiple steps to complete.&#160;<br></p><p>Temp Tables can also be used to store data while waiting for other parts of the query to finish running.<br></p><p><em>&quot;Have you ever wanted to know how to write T-SQL? This new series covers how to go from having little to no knowledge of T-SQL to a PRO in no time! Austin covers some of the best practices for working with SQL Temp Tables. How to leverage them with CRUD operations as well as use them to filter results with JOINs.</em>&quot;<br></p><p><b></b><br></p><b></b><div tabindex="-1" data-cke-widget-wrapper="1" data-cke-filter="off" class="cke_widget_wrapper cke_widget_block cke_widget_inlineimage cke_widget_wrapper_webPartInRteInlineImage cke_widget_wrapper_webPartInRteClear cke_widget_wrapper_webPartInRteAlignCenter cke_widget_wrapper_webPartInRte" data-cke-display-name="div" data-cke-widget-id="2" role="region" aria-label="Inline image in RTE. Use Alt + F11 to go to toolbar. Use Alt + P to open the property pane."><div data-webpart-id="image" class="webPartInRte webPartInRteAlignCenter webPartInRteClear webPartInRteInlineImage cke_widget_element" data-cke-widget-data="%7B%22classes%22%3A%7B%22webPartInRteInlineImage%22%3A1%2C%22webPartInRteClear%22%3A1%2C%22webPartInRteAlignCenter%22%3A1%2C%22webPartInRte%22%3A1%7D%7D" data-cke-widget-upcasted="1" data-cke-widget-keep-attr="0" data-widget="inlineimage" data-instance-id="d5ed94d9-6ec8-48aa-a60f-8ea510f7850e" title=""></div></div><p><b>When I should use SQL Temp Tables</b><br></p><p>SQL temporary tables are useful in various scenarios when you need to store and manipulate temporary data within a session or a specific scope. Here are some situations where using temporary tables can be beneficial&#58;</p><p><br></p><ol><li>Complex Queries&#58; If you have a complex query that involves multiple subqueries, aggregations, or calculations, using temporary tables can simplify the query structure and make it more manageable. You can break down the query into smaller steps by storing intermediate results in temporary tables and then perform subsequent operations on those tables.</li><li>Performance Optimization&#58; Temporary tables can improve query performance in certain cases. If you have a query that involves multiple joins or expensive computations, you can precalculate and store intermediate results in a temporary table. This can reduce the overall execution time by avoiding redundant computations and optimizing join operations</li><li>Transactional Data&#58; Temporary tables can be helpful when you need to process transactional data within a session. For example, if you are performing a series of operations that involve inserting, updating, or deleting rows, you can store the interim results in a temporary table until you’re ready to commit the changes to the permanent database tables.</li><li>Data Transformation&#58; Temporary tables are commonly used in data transformation tasks. If you need to transform data from one format to another, you can load the raw data into a temporary table, apply the necessary transformations, and then extract the transformed data into the desired format.</li><li>Testing and Debugging&#58; Temporary tables can be handy during testing and debugging processes. You can create temporary tables to simulate specific scenarios or isolate portions of your code for troubleshooting purposes. Temporary tables provide a controlled environment where you can experiment without affecting the actual data.</li></ol><p>It’s important to note that the usage of temporary tables should be considered judiciously, as they have their own overhead in terms of resource consumption and management. Temporary tables are scoped to a session or a transaction and are automatically dropped at the end of the session or transaction, so they are not suitable for storing persistent data.<br></p><h3><b>More links on about Microsoft SQL</b><b></b></h3><p><br></p><ul><li><a data-cke-saved-href="https&#58;//www.sqlservertutorial.net/sql-server-basics/sql-server-temporary-tables/" href="https&#58;//www.sqlservertutorial.net/sql-server-basics/sql-server-temporary-tables/">An Introduction to SQL Server Temporary Tables By ...</a><br>Temporary tables are tables that exist temporarily on the SQL Server. The temporary tables are useful for storing the immediate result sets that are accessed&#160;...</li><li><a data-cke-saved-href="https&#58;//www.sqlshack.com/overview-and-performance-tips-of-temp-tables-in-sql-server/" href="https&#58;//www.sqlshack.com/overview-and-performance-tips-of-temp-tables-in-sql-server/">Overview and Performance Tips of Temp Tables in SQL ...</a><br>Mar 31, 2021 — As its name indicates, temporary tables are used to store data temporarily and they can perform CRUD (Create, Read, Update, and Delete), join,&#160;...</li><li><a data-cke-saved-href="https&#58;//www.red-gate.com/simple-talk/databases/sql-server/t-sql-programming-sql-server/temporary-tables-in-sql-server/" href="https&#58;//www.red-gate.com/simple-talk/databases/sql-server/t-sql-programming-sql-server/temporary-tables-in-sql-server/">Temporary Tables in SQL Server - Simple Talk</a><br>​​​​​​​Aug 1, 2020 — Temporary tables in SQL Server are just that. They are used most often to provide workspace for the intermediate results when processing&#160;...</li></ul></div></div><div data-sp-canvascontrol="" data-sp-canvasdataversion="1.0" data-sp-controldata="&#123;&quot;controlType&quot;&#58;0,&quot;pageSettingsSlice&quot;&#58;&#123;&quot;isDefaultDescription&quot;&#58;true,&quot;isDefaultThumbnail&quot;&#58;true,&quot;globalRichTextStylingVersion&quot;&#58;0,&quot;rtePageSettings&quot;&#58;&#123;&quot;contentVersion&quot;&#58;4&#125;,&quot;isEmailReady&quot;&#58;false&#125;&#125;"></div></div>

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SQL Temp Tables

Have you ever wanted to know how to write T-SQL? This new series covers how to go from having little to no knowledge of T-SQL to a PRO in no time!

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