sqlserver2005 自定义split,字符串转数组，逗号分隔的形式保存
1.前言.
sqlserver2005没有splite函数，所以只能自己写。下面实现了一个字段存放1天的1440个点的数据，数据以int类型保存并以逗号分隔，如1,2,3,4,5,7,9.
2.程序
3.补充。
另一填充例子。
sqlserver2005没有splite函数，所以只能自己写。下面实现了一个字段存放1天的1440个点的数据，数据以int类型保存并以逗号分隔，如1,2,3,4,5,7,9.
2.程序
ALTER FUNCTION [dbo].[getDelays]
(
@DELAYS varchar(8000),
@DELAY int,
@E_TIME datetime
)
RETURNS varchar(8000) AS
BEGIN
DECLARE @delayResult varchar(8000)
DECLARE @miCount int
DECLARE @count1 int --计数
DECLARE @index int
DECLARE @start int
DECLARE @location int
DECLARE @loopCount int
DECLARE @lastData varchar(10)
DECLARE @lastLocation int
--根据实际情况把字符串分成1000个逗号分隔,如果前面一个有延时那么填平
--循环，如果前面没数，那么沿用最初的数据，一直填充到本数据为止,获取分钟数，0到59
--1.先获取天数 .
SET @miCount= CONVERT(int,datename(hh,@E_TIME))*60+CONVERT(int,datename(mi,@E_TIME))+1;
--2.判断是否有数，保证有1440个点
SET @loopCount=1440;
--如果还没数或者数根本没逗号，那么先组织成1440个零
IF(@DELAYS IS NULL) OR charindex(',',@DELAYS)=0
begin
SET @delayResult=0;
--如果没有数据，则预定1440个点，里面插入数据
WHILE @loopCount>1
BEGIN
SET @delayResult=@delayResult+',0';
SET @loopCount=@loopCount-1;
END
end
ELSE
BEGIN
--如果有，则沿用已经有数的字符串
SET @delayResult=@DELAYS;
END;
--3根据序号插入数
--3.1先定位置
set @location=charindex(',',@delayResult);
set @start=1;
SET @count1=0;
while @location>0
BEGIN
set @start=@location+1
set @lastLocation=@location;
set @location=charindex(',',@delayResult,@start);
SET @count1=@count1+1;
IF(@count1=@miCount)
BEGIN
BREAK;
END
END
--3.2然后插入,将从
SET @delayResult=stuff(@delayResult,@lastLocation-1,@location-@lastLocation+1,@DELAY )
RETURN @delayResult;
END
--SELECT dbo.getDelays('0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0',100,'2013-09-05 00:00:00');
3.补充。
另一填充例子。
--根据日期将对应的次数填充到类似0,0,0,1,3,2,0,0三十一个逗号的字符串中，用来合并月数据
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER FUNCTION [dbo].[setCounts]
(
@Counts varchar(2000),
@E_TIME datetime,
@times bigint
)
RETURNS varchar(2000) AS
BEGIN
DECLARE @CountsResult varchar(2000)
DECLARE @miCount int --1个月的第几天
DECLARE @count1 int --计数
DECLARE @index int
DECLARE @start int
DECLARE @location int
DECLARE @loopCount int
DECLARE @lastData varchar(10)
DECLARE @lastLocation int
DECLARE @theCount bigint
DECLARE @theCountStr varchar(100)
--总体功能:将对应天数对应的次数加1
--思路:固定32个数字加31个豆号,
--1.先获取天数 .
SET @miCount=datepart(dd,@E_TIME) ;
--2.默认值
if(@Counts is null or ''=@Counts)
begin
set @CountsResult='0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0';
end
else
begin
SET @CountsResult=@Counts;
end
--截取第一个逗号
set @location=charindex(',',@CountsResult);
set @start=1;
SET @count1=0;
if(@miCount=1)
begin
--如果是1号特殊处理
set @theCountStr=substring(@CountsResult,1,@location-1);
set @theCount=cast(@theCountStr as bigint);
return stuff(@CountsResult,1,@location-1,convert(varchar(100),@theCount+@times) );
end
else
begin
---不是1号则找到对应的位置
while @location>0
BEGIN
set @start=@location+1;
set @lastLocation=@location;
set @location=charindex(',',@CountsResult,@start);
SET @count1=@count1+1;
IF(@count1=@miCount-1)
BEGIN
BREAK;
END
end
set @theCountStr=substring(@CountsResult,@lastLocation+1,@location-@lastLocation-1);
set @theCount=cast(@theCountStr as bigint);
SET @CountsResult= stuff(@CountsResult,@lastLocation+1,@location-@lastLocation-1,convert(varchar(100),@theCount+@times) );
RETURN @CountsResult;
end
RETURN @CountsResult;
END