--提取数字 IF OBJECT_ID('DBO.GET_NUMBER2') IS NOT NULL DROP FUNCTION DBO.GET_NUMBER2 GO CREATE FUNCTION DBO.GET_NUMBER2(@S VARCHAR(100)) RETURNS VARCHAR(100) AS BEGIN WHILE PATINDEX('%[^0-9]%',@S) > 0 BEGIN set @s=stuff(@s,patindex('%[^0-9]%',@s),1,'') END RETURN @S END GO --测试 PRINT DBO.GET_NUMBER('呵呵ABC123ABC') GO --123 -------------------------------------------------------------------- --提取英文 IF OBJECT_ID('DBO.GET_STR') IS NOT NULL DROP FUNCTION DBO.GET_STR GO CREATE FUNCTION DBO.GET_STR(@S VARCHAR(100)) RETURNS VARCHAR(100) AS BEGIN WHILE PATINDEX('%[^a-z]%',@S) > 0 BEGIN set @s=stuff(@s,patindex('%[^a-z]%',@s),1,'') END RETURN @S END GO --测试 PRINT DBO.GET_STR('呵呵ABC123ABC') GO -------------------------------------------------------------------- --提取中文 IF OBJECT_ID('DBO.CHINA_STR') IS NOT NULL DROP FUNCTION DBO.CHINA_STR GO CREATE FUNCTION DBO.CHINA_STR(@S NVARCHAR(100)) RETURNS VARCHAR(100) AS BEGIN WHILE PATINDEX('%[^吖-座]%',@S) > 0 SET @S = STUFF(@S,PATINDEX('%[^吖-座]%',@S),1,N'') RETURN @S END GO PRINT DBO.CHINA_STR('呵呵ABC123ABC') GO
DECLARE @STR VARCHAR(50),@NUM NUMERIC(19,6),@UNIT VARCHAR(50) SELECT @STR='100.00mg' SELECT @NUM=LEFT(@STR,CASE PATINDEX('%[^0-9.]%',@STR) WHEN 0 THEN LEN(@STR) ELSE PATINDEX('%[^0-9.]%',@STR) END-1) ,@UNIT=STUFF(@STR,1,CASE WHEN PATINDEX('%[^0-9.]%',@STR)>0 THEN PATINDEX('%[^0-9.]%',@STR)-1 ELSE 0 END,'') SELECT @NUM,@UNIT --100.000000 mg
--提取数字
IF OBJECT_ID('DBO.GET_NUMBER2') IS NOT NULL
DROP FUNCTION DBO.GET_NUMBER2
GO
CREATE FUNCTION DBO.GET_NUMBER2(@S VARCHAR(100))
RETURNS VARCHAR(100)
AS
BEGIN
WHILE PATINDEX('%[^0-9]%',@S) > 0
BEGIN
set @s=stuff(@s,patindex('%[^0-9]%',@s),1,'')
END
RETURN @S
END
GO
--测试
PRINT DBO.GET_NUMBER('呵呵ABC123ABC')
GO
--123
--------------------------------------------------------------------
--提取英文
IF OBJECT_ID('DBO.GET_STR') IS NOT NULL
DROP FUNCTION DBO.GET_STR
GO
CREATE FUNCTION DBO.GET_STR(@S VARCHAR(100))
RETURNS VARCHAR(100)
AS
BEGIN
WHILE PATINDEX('%[^a-z]%',@S) > 0
BEGIN
set @s=stuff(@s,patindex('%[^a-z]%',@s),1,'')
END
RETURN @S
END
GO
--测试
PRINT DBO.GET_STR('呵呵ABC123ABC')
GO
--------------------------------------------------------------------
--提取中文
IF OBJECT_ID('DBO.CHINA_STR') IS NOT NULL
DROP FUNCTION DBO.CHINA_STR
GO
CREATE FUNCTION DBO.CHINA_STR(@S NVARCHAR(100))
RETURNS VARCHAR(100)
AS
BEGIN
WHILE PATINDEX('%[^吖-座]%',@S) > 0
SET @S = STUFF(@S,PATINDEX('%[^吖-座]%',@S),1,N'')
RETURN @S
END
GO
PRINT DBO.CHINA_STR('呵呵ABC123ABC')
GO
SELECT @STR='100.00mg'
SELECT @NUM=LEFT(@STR,CASE PATINDEX('%[^0-9.]%',@STR) WHEN 0 THEN LEN(@STR) ELSE PATINDEX('%[^0-9.]%',@STR) END-1)
,@UNIT=STUFF(@STR,1,CASE WHEN PATINDEX('%[^0-9.]%',@STR)>0 THEN PATINDEX('%[^0-9.]%',@STR)-1 ELSE 0 END,'')
SELECT @NUM,@UNIT
--100.000000 mg