[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-571369-105":53,"doc-detail-571369-en":127},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":120,"head_meta":122,"extra_data":124,"updated_unix":126},105,"en","sql-cheat-sheet-data-aggregation-and-joins","SQL Cheat Sheet - Data Aggregation and Joins","","This SQL cheat sheet serves as a concise professional reference for performing core data operations. It provides clear, syntax-heavy examples of common SQL aggregation functions, including COUNT, SUM, AVG, MIN, and MAX, tailored for database employees tables. Additionally, it details essential JOIN operations, covering the functional differences between INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN, and CROSS JOIN. Designed for developers and analysts, the document ensures rapid lookup of standard relational database queries for efficient data retrieval and set manipulation.",{"@graph":63,"@context":119},[64,80,102],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":51,"@type":70,"position":76},"https://docshare.wps.com/template/general/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/sql-cheat-sheet-data-aggregation-and-joins/571369/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/sql-cheat-sheet-data-aggregation-and-joins/571369.png","ImageObject",442,249,{"name":88,"@type":89},"cryingin4k","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-23","2026-10-13",true,{"@type":98,"interactionType":99,"userInteractionCount":101},"InteractionCounter",{"@type":100},"ViewAction",8,{"@type":103,"mainEntity":104},"FAQPage",[105,111,115],{"name":106,"@type":107,"acceptedAnswer":108},"What is the purpose of the SQL COUNT function?","Question",{"text":109,"@type":110},"The COUNT function is used to return the total number of records within a table or a specific result set.","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"How does an INNER JOIN differ from a LEFT JOIN?",{"text":114,"@type":110},"An INNER JOIN retrieves only the records that have matching values in both tables, whereas a LEFT JOIN retrieves all records from the left table and any corresponding matched records from the right table.",{"name":116,"@type":107,"acceptedAnswer":117},"What result does a CROSS JOIN produce?",{"text":118,"@type":110},"A CROSS JOIN retrieves the Cartesian product of the two involved tables, effectively pairing every row from the first table with every row from the second table.","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},571369,1792083180,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":9,"language":136,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":137,"faqs":138,"seo_title":139,"seo_description":61,"update_tm":140,"read_time":4},137458181193,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","SQL Cheat Sheet  \n| \u003Cbr>| \u003Cbr>|\n| --- | --- |\n|  |  |\n| \u003Cbr>| \u003Cbr>Joins in SQL\u003Cbr>INNER JOIN\u003Cbr>Retrieves Records That Have Matching Values in Both Tables\u003Cbr>\u003Cbr>SELECT * FROM employees INNER JOIN\u003Cbr>departments ON employees.department_id = departments.department_id;\u003Cbr>LEFT JOIN\u003Cbr>Retrieves All Records from the Left Table and the Matched Records from the Right Table\u003Cbr>SELECT * FROM employees LEFT JOIN\u003Cbr>departments ON employees.department_id = departments.department_id;\u003Cbr>RIGHT JOIN\u003Cbr>Retrieves All Records from the Right Table and the Matched Records from the Left Table\u003Cbr>SELECT * FROM employees RIGHT JOIN\u003Cbr>departments ON employees.department_id = departments.department_id;\u003Cbr>FULL OUTER JOIN\u003Cbr>Retrieves All Records When There Is a Match in Either the Left or Right Table\u003Cbr>SELECT * FROM employees FULL OUTER\u003Cbr>JOIN departments ON employees.department_id = departments.department_id;\u003Cbr>CROSS JOIN\u003Cbr>Retrieves the Cartesian Product of the Two Tables\u003Cbr>SELECT * FROM employees CROSS JOIN departments; |\n\nTo Learn More Commands, You can read this article","cbCaitKYlCr6ZN1l","https://ap.wps.com/l/cbCaitKYlCr6ZN1l","pdf",795662,"English","# Data Aggregation in SQL\n## Aggregation Functions\n# Joins in SQL\n## Types of Joins","[{\"question\":\"What is the purpose of the SQL COUNT function?\",\"answer\":\"The COUNT function is used to return the total number of records within a table or a specific result set.\"},{\"question\":\"How does an INNER JOIN differ from a LEFT JOIN?\",\"answer\":\"An INNER JOIN retrieves only the records that have matching values in both tables, whereas a LEFT JOIN retrieves all records from the left table and any corresponding matched records from the right table.\"},{\"question\":\"What result does a CROSS JOIN produce?\",\"answer\":\"A CROSS JOIN retrieves the Cartesian product of the two involved tables, effectively pairing every row from the first table with every row from the second table.\"}]","SQL Cheat Sheet - Data Aggregation and Joins | PDF",1791914378]