从字符串str 开始,返回从后边开始len个字符组成的子序列 SPACE(N) 返回一个由N空格组成的字符串。 SUBSTRING(str,pos) , SUBSTRING(str FROM pos) SUBSTRING(str,pos,len) , SUBSTRING(str FROM pos FOR len) 不带有len 参数的格式从字符串str返回一个子字符串,起始于位置 pos。带有len参数的格式从字符串s...
Getting Available Server Disk Space (Total Size / Free Space) using T-SQL on SQL 2000 Getting data for same month last year Getting History of queries run on a database Getting Identity values after a bulk insert in SQL Server 2008 Getting Invalid filegroup error Getting last Saturday from ...
in (substring) - はい、メモを参照してください。 - - - ("string value" in \<column>) はサポートされていますが、(\<column> in "string value") はサポートされていません。 + はい - - いいえ - - はい - - いいえ - * はい - - いいえ - / はい - - いいえ ...
该函数substring_index在搜索Delim时执行区分大小写的匹配。 select t1.email ,substring_index(t1.email,'.',1) as name ,substring_index(t1.email,'.',-1) as com ,substring_index(t1.email,'@',1) as before ,substring_index(t1.email,'@',-1) as after from temp as t1 emailnamecombefore...
大家好,又见面了,我是你们的朋友全栈君。 SQL语句大全 –语 句功能 –数据操作 SELECT –从数据库表中检索数据行和列 INSERT –向数据库表添加新数据行 DELETE –从数据库表中删除数据行 UPDATE –更新数据库表中的数据 -数据定义 CREATE TABLE –创建一个数据库表 DROP TABLE –从数据库中删除表 ALTER TAB...
COALESCE INSERT SPACE COLLATE INT SQL COLLATION INTEGER SQLCA COLUMN INTERSECT SQLCODE COMMIT INTERVAL SQLERROR CONNECT INTO SQLSTATE CONNECTION IS SQLWARNING CONSTRAINT ISOLATION SUBSTRING CONSTRAINTS JOIN SUM CONTINUE KEY SYSTEM_USER CONVERT LANGUAGE TABLE CORRESPONDING LAST TEMPORARY COUNT...
select space(10); select length(space(10)); 重复字符串函数:repeat 返回重复n次后的str字符串 select repeat('SQL',5); 左补足函数:lpad 将str进行用pad进行左补足到len位 select lpad('MySQL',11,'go'); 右补足函数:rpad 将str进行用pad进行右补足到len位 select rpad('MySQL',11,'go'); ...
The query below looks for the first space and the second space in the FullName to determine the position of the MiddleName. SELECT SUBSTRING(FullName, CHARINDEX(' ', FullName) + 1, CHARINDEX(' ', FullName, CHARINDEX(' ', FullName) + 1) - CHARINDEX(' ', FullName) - 1) AS Middle...
Use SUBSTRING to Get Data After and Before a Character The following example will show data before and after a space for a character string. DECLARE @string varchar(50)='Hello world' SELECT SUBSTRING(@string,1,CHARINDEX(' ',@string)) as firstpart, ...
SPACEReturns a string of the specified number of space characters STRReturns a number as string STUFFDeletes a part of a string and then inserts another part into the string, starting at a specified position SUBSTRINGExtracts some characters from a string ...