SQL Server 2005+ 使用 CTE 分割字符串
记录一下，效率比旧的字符串分割效率高
ALTERFUNCTION[dbo].[UF_SpliteIntToTable]
(
@StringVARCHAR(8000)
)
RETURNS@TableTABLE(IdINT)
AS
BEGIN
DECLARE@SpliteCharASCHAR(1)=',';
WITHTempTableAS
(
SELECTCAST(SUBSTRING(@String,1,CHARINDEX(@SpliteChar,@String,1)-1)ASINT)ASitem,
SUBSTRING(@String,CHARINDEX(@SpliteChar,@String,1)+1,LEN(@String))+@SpliteCharASlist
UNIONALL
SELECTCAST(SUBSTRING(list,1,CHARINDEX(@SpliteChar,list,1)-1)ASINT)ASitem,
SUBSTRING(list,CHARINDEX(@SpliteChar,list,1)+1,LEN(list))ASlist
FROMTempTable
WHERELEN(TempTable.list)>0
)
INSERTINTO@TableSELECTitemFROMTempTableWHEREitem>0
RETURN
END