如何在T-SQL中拆分字符串？

Question

我有一个varchar @ a ='a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p',有| 划定的价值观.我想将此变量拆分为数组或表.有没有人对此有任何想法.

Answer 1

使用像这样的表值函数,

CREATE FUNCTION Splitfn(@String varchar(8000), @Delimiter char(1))       
returns @temptable TABLE (items varchar(8000))       
as       
begin       
    declare @idx int       
    declare @slice varchar(8000)       

    select @idx = 1       
        if len(@String)<1 or @String is null  return       

    while @idx!= 0       
    begin       
        set @idx = charindex(@Delimiter,@String)       
        if @idx!=0       
            set @slice = left(@String,@idx - 1)       
        else       
            set @slice = @String       

        if(len(@slice)>0)  
            insert into @temptable(Items) values(@slice)       

        set @String = right(@String,len(@String) - @idx)       
        if len(@String) = 0 break       
    end   
return      

end

并获取您的变量并使用此函数,

SELECT i.items FROM dbo.Splitfn(@a,'|') AS i