如果指定了 GROUP BY,则 GROUPING 只能用在 SELECT列表、HAVING 和 ORDER BY 子句中。-- 语法 GROUPING ( <column_expression> )3.4.4.2 GROUPING_ID() 计算分组级别的函数。仅当指定了 GROUP BY 时,GROUPING_ID 才能在 SELECT列表、HAVING 或 ORDER BY 子句中使用。 代码语言:javascript 代码运行次数:0 运行...
Convert between ASCII or UNICODE code to a string character. SELECT CHAR(65) 'A' Numeric integer value as input. CHARINDEX and PATINDEX Find the starting position of one string expression or string pattern within another string expression. SELECT CHARINDEX...
@type='object'ELSESELECT@NextCloseDelimiterChar=']',@type='array'SELECT@OpenDelimiter=@firstObjectWHILE1=1--find the innermost object or list...BEGINSELECT@lenJSON=LEN(@JSON+'|')-1--find the matching close-delimiter proceeding after the open-delimiterSELECT@NextCloseDelimiter=CHARINDEX(@NextClos...
SET @LastName = 'mc donald' -- Test value -- Find space in name:
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Output String : (subitemid_4698&& (subitemid_5047>=0 ||subitemid_GHI>=0)) || (!subitemid_ABC && subitemid_DEF==0 && subitemid_GHI==0) Please create below function [SplitString] firstly, refer the test1 DDL from above and find the query in attached txt file. Copy [CREATE FUN...
Cannot insert duplicate key row in object... Cannot insert the value NULL into column 'ID', table Cannot open backup device 'C:\TEMP\Demo.bak'. Operating system error 2(The system cannot find the file specified.). Cannot parse using OPENXML with namespace Cannot promote the transaction to...
REPLACE ( 'string_expression1' , 'string_expression2' , 'string_expression3' )--用第三个表达式替换第一个字符串表达式中出现的所有第二个给定字符串表达式。 STUFF ( character_expression , start , length , character_expression )--删除指定长度的字符并在指定的起始点插入另一组字符。
--not in 不在其中 select • ect * from student where id not in (1, 2); --is null 是空 select • ect * from student where age is null; --is not null 不为空 select • ect * from student where age is not null;
使用like可能查到我们不想要的记录，它比like更精准，这时候mysql的FIND_IN_SET函数就派上用场了，...