我有一些以逗号分隔的值的列。例如
A
as,ad,af,ag
我的经理希望输出看起来像这样:
as
ad
af
ag
所有这些应该在一行之内。我想我们需要使用一些换行符。
您好我们可以使用char(13)+ char(10)替换。这个也有用......
谢谢, Shashra
答案 0 :(得分:6)
您可以创建一个用户定义的UDF,如下所示。然后,只需从另一个查询中传入逗号分隔列表,它将返回一个表,其中每个值都在一个单独的行中。
CREATE FUNCTION [dbo].[fnSplitStringAsTable]
(
@inputString varchar(MAX),
@delimiter char(1) = ','
)
RETURNS
@Result TABLE
(
Value varchar(MAX)
)
AS
BEGIN
DECLARE @chIndex int
DECLARE @item varchar(100)
-- While there are more delimiters...
WHILE CHARINDEX(@delimiter, @inputString, 0) <> 0
BEGIN
-- Get the index of the first delimiter.
SET @chIndex = CHARINDEX(@delimiter, @inputString, 0)
-- Get all of the characters prior to the delimiter and insert the string into the table.
SELECT @item = SUBSTRING(@inputString, 1, @chIndex - 1)
IF LEN(@item) > 0
BEGIN
INSERT INTO @Result(Value)
VALUES (@item)
END
-- Get the remainder of the string.
SELECT @inputString = SUBSTRING(@inputString, @chIndex + 1, LEN(@inputString))
END
-- If there are still characters remaining in the string, insert them into the table.
IF LEN(@inputString) > 0
BEGIN
INSERT INTO @Result(Value)
VALUES (@inputString)
END
RETURN
END
答案 1 :(得分:6)
不使用用户定义函数
进行检查DECLARE @param VARCHAR(MAX)
SET @param = 'as,ad,af,ag'
SELECT Split.a.value('.', 'VARCHAR(100)') AS ColName
FROM
(
SELECT CONVERT(XML, '<M>' + REPLACE(ColName, ',', '</M><M>') + '</M>') AS ColName
FROM (SELECT @param AS ColName) TableName
) AS A CROSS APPLY ColName.nodes ('/M') AS Split(a)
答案 2 :(得分:-2)
您希望使用字符串拆分功能,例如找到here的功能。
创建此功能后,您可以:
select string as A
from YourTable
cross apply dbo.fnParseStringTSQL(A,',')