PATINDEX ( '%pattern%' , expression ) QUOTENAME:返回带有分隔符的 Unicode 字符串,分隔符的加入可使输入的字符串成为有效的 Microsoft SQL Server 分隔标识符。 QUOTENAME ( 'character_string' [ , 'quote_character' ] ) ' character_string ' Unicode 字符数据构成的字符串。character_string 是 sysname ...
With this SQL Window Functions cheat sheet, you'll have a handy reference guide to the various types of window functions in SQL. Richie Cotton October 23, 2022 SQL SQL Joins Cheat Sheet With this SQL Joins cheat sheet, you'll have a handy reference guide to joining data in SQL. Richie ...
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Window Functions Window functions are used to perform calculations across a set of rows related to the current row within the result set. They are often used for tasks like calculating cumulative sums and ranking rows. Example: Using a Window Function ...