{"id":1249,"date":"2019-02-21T08:57:18","date_gmt":"2019-02-21T01:57:18","guid":{"rendered":"http:\/\/www.sqlservertutorial.net\/?page_id=1249"},"modified":"2021-04-28T14:47:09","modified_gmt":"2021-04-28T07:47:09","slug":"sql-server-window-functions","status":"publish","type":"page","link":"https:\/\/www.sqlservertutorial.net\/sql-server-window-functions\/","title":{"rendered":"SQL Server Window Functions"},"content":{"rendered":"\n

SQL Server Window Functions calculate an aggregate value based on a group of rows and return multiple rows for each group.
\n<\/p>\n\n\n\n

Name<\/th>Description<\/th><\/tr><\/thead>
CUME_DIST<\/a><\/td>Calculate the cumulative distribution of a value in a set of values<\/td><\/tr>
DENSE_RANK<\/a><\/td>Assign a rank value to each row within a partition of a result, with no gaps in rank values.<\/td><\/tr>
FIRST_VALUE<\/a><\/td>Get the value of the first row in an ordered partition of a result set.<\/td><\/tr>
LAG<\/a><\/td>Provide access to a row at a given physical offset that comes before the current row.<\/td><\/tr>
LAST_VALUE<\/a><\/td>Get the value of the last row in an ordered partition of a result set.<\/td><\/tr>
LEAD<\/a><\/td>Provide access to a row at a given physical offset that follows the current row.<\/td><\/tr>
NTILE<\/a><\/td>Distribute rows of an ordered partition into a number of groups or buckets<\/td><\/tr>
PERCENT_RANK<\/a><\/td>Calculate the percent rank of a value in a set of values.<\/td><\/tr>
RANK<\/a><\/td>Assign a rank value to each row within a partition of a result set<\/td><\/tr>
ROW_NUMBER<\/a><\/td>Assign a unique sequential integer to rows within a partition of a result set, the first row starts from 1.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

SQL Server Window Functions calculate an aggregate value based on a group of rows and return multiple rows for each group.<\/p>\n","protected":false},"author":1,"featured_media":2742,"parent":0,"menu_order":15,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1249","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nSQL Server Window Functions<\/title>\n<meta name=\"description\" content=\"SQL Server Window Functions calculate an aggregate value based on a group of rows and return multiple rows for each group.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sqlservertutorial.net\/sql-server-window-functions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL Server Window 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