存储过程-简单通用分页-Mysql Tutorial-php.cn

存储过程-简单通用分页

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Release： 2016-06-07 15:28:47

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create PROCEDURE [dbo].[GetPageDataOutRowNumber](@tn nvarchar(30),--表名称@idn nvarchar(20),--表主键名称@pi int = 1,--当前页数 @ps int = 7,--每页大小 @wh nvarchar(255) = ,--wehre查询条件@oby nvarchar(255) = ,--orderby 排序@rc int output,--

create PROCEDURE [dbo].[GetPageDataOutRowNumber]
(
@tn nvarchar(30),--表名称
@idn nvarchar(20),--表主键名称
@pi int = 1,--当前页数 
@ps  int = 7,--每页大小 
@wh nvarchar(255) = &#39;&#39;,--wehre查询条件
@oby nvarchar(255) = &#39;&#39;,--orderby 排序
@rc int output,--总行数(传出参数)
@pc int output--总页数(传出参数)
)
AS
DECLARE @sql NVARCHAR(225)=&#39;&#39;,@sqlCount NVARCHAR(225)=&#39;&#39;
--1.计算总行数和总页数
SET @sqlCount = &#39;SELECT @rc=COUNT([&#39;+@idn+&#39;]),@pc=CEILING((COUNT(&#39;+@idn+&#39;)+0.0)/&#39;+ CAST(@ps AS VARCHAR)+&#39;) FROM &#39; + @tn
IF LEN(@wh)>1
	set @sqlCount=@sqlCount+&#39; WHERE &#39;+@wh
print @sqlCount
EXEC SP_EXECUTESQL @sqlCount,N&#39;@rc INT OUTPUT,@pc INT OUTPUT&#39;,@rc OUTPUT,@pc OUTPUT
--2.分页
--2.1如果是第一页，则直接查询
IF @pi = 1
BEGIN
	SET @sql=&#39;SELECT TOP &#39;+str(@ps) +&#39; * FROM &#39;+@tn
	IF LEN(@wh)>1
		set @sql=@sql+&#39; WHERE &#39;+@wh
	IF LEN(@oby)>1
			SET @sql=@sql+&#39; order by &#39; +@oby
EXEC(@sql)
END
ELSE--2.2如果不是第一页，则拼接查询语句
BEGIN
	SET NOCOUNT ON
	SET @sql=&#39;SELECT * FROM (select row_number() over(order by &#39;
	IF LEN(@oby)>1
		set @sql=@sql + @oby+&#39;) as rowNum,* from &#39;+@tn
	else
		set @sql=@sql + @idn+&#39;) as rowNum,* from &#39;+@tn
	IF LEN(@wh)>1
		set @sql=@sql+&#39; where &#39;+@wh
	set @sql=@sql+&#39;)as temp where rowNum>&#39;+str(@ps * (@pi-1))+&#39; and rowNum<=&#39;+str(@ps*@pi)
	print @sql
	EXEC(@sql)
	SET NOCOUNT OFF
END

--测试语句
declare @rc int,@pc int
exec [GetPageDataOutRowNumber] &#39;Ams_Area&#39;,&#39;ar_id&#39;,2,5,&#39;&#39;,&#39; ar_id desc&#39;,@rc output,@pc output
select @rc,@pc

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