Sql Server 自定义函数（原创）

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传入字符串拿分隔符分开后

/*
函数: Erp.CharDelimTable(@ParamStr,@DelimStr)

作用: 将传入字符串拿分隔符分开后放到返回表里

测试:
select * from Erp.CharDelimTable('1,8,,8,8,8',',')

select * from Erp.CharDelimTable('1,8,,8,8,8',',') where IsNumeric(ParamValue) = 0

select * from Erp.CharDelimTable('123',',')

返回: 保存传入字符串拿分隔符分开后元素的Table

调用: 无调用
*/

Alter Function [Erp].[CharDelimTable]
(
@ParamStr nvarchar(max),
@DelimStr nvarchar(20)
)
Returns @CharDelimTable Table (
ID decimal(18, 0) IDENTITY(1,1) NOT NULL,
ParamValue nvarchar(max) NULL
)
As
begin

if(Len(@ParamStr) = 0)
return
else
begin
if(CharIndex(@DelimStr,@ParamStr) = 0)
begin
insert into @CharDelimTable(ParamValue)
select @ParamStr as ParamValue
end
else
begin
while(CharIndex(@DelimStr,@ParamStr) > 0)
begin
insert into @CharDelimTable(ParamValue)
select SubString(@ParamStr,0,CharIndex(@DelimStr,@ParamStr)) as ParamValue
set @ParamStr = SubString(@ParamStr,CharIndex(@DelimStr,@ParamStr)+1,Len(@ParamStr))
end

insert into @CharDelimTable(ParamValue)
select @ParamStr as ParamValue
end
end
return
end