--存储过程
CREATE PROCEDURE Pager
@TotalCount INT OUTPUT, --总记录数
@TotalPage INT OUTPUT, --总页数
@Table NVARCHAR(1000), --查询的表名(可多表,例如:Person p LEFT JOIN TE a ON a.PID=p.Id )
@Column NVARCHAR(1000), --查询的字段,可多列或者为*
@OrderColumn NVARCHAR(100), --排序字段
@GroupColumn NVARCHAR(150), --分组字段
@PageSize INT, --每页记录数
@CurrentPage INT, --当前页数
@Group TINYINT, --是否使用分组,否是
@Condition NVARCHAR(4000) --查询条件(注意:若这时候为多表查询,这里也可以跟条件,例如:a.pid=2)
AS
DECLARE @PageCount INT, --总页数
@strSql NVARCHAR(4000), --主查询语句
@strTemp NVARCHAR(2000), --临时变量
@strCount NVARCHAR(1000), --统计语句
@strOrderType NVARCHAR(1000) --排序语句
BEGIN
SET @PageCount = @PageSize * (@CurrentPage -1)
SET @strOrderType = ' ORDER BY ' + @OrderColumn + ' '
IF @Condition != ''
BEGIN
IF @CurrentPage = 1
BEGIN
IF @GROUP = 1
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
+ ' WHERE ' + @Condition + ' GROUP BY ' + @GroupColumn
SET @strCount = @strCount + ' SET @TotalCount=@@ROWCOUNT'
SET @strSql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @Column
+ ' FROM ' + @Table + ' WHERE ' + @Condition +
' GROUP BY ' + @GroupColumn + ' ' + @strOrderType
END
ELSE
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
+ ' WHERE ' + @Condition
SET @strSql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @Column
+ ' FROM ' + @Table + ' WHERE ' + @Condition + ' ' + @strOrderType
END
END
ELSE
BEGIN
IF @GROUP = 1
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
+ ' WHERE ' + @Condition + ' GROUP BY ' + @GroupColumn
SET @strCount = @strCount + ' SET @TotalCount=@@ROWCOUNT'
SET @strSql = 'SELECT * FROM (SELECT TOP (2000) ' + @Column
+ ',ROW_NUMBER() OVER(' + @strOrderType +
') AS NUM FROM ' + @Table + ' WHERE ' + @Condition +
' GROUP BY ' + @GroupColumn +
') AS T WHERE NUM BETWEEN ' + STR(@PageCount + 1) +
' AND ' + STR(@PageCount + @PageSize)
END
ELSE
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
+ ' WHERE ' + @Condition
SET @strSql = 'SELECT * FROM (SELECT TOP (2000) ' + @Column
+ ',ROW_NUMBER() OVER(' + @strOrderType +
') AS NUM FROM ' + @Table + ' WHERE ' + @Condition +
') AS T WHERE NUM BETWEEN ' + STR(@PageCount + 1) +
' AND ' + STR(@PageCount + @PageSize)
END
END
END
ELSE
--没有查询条件
BEGIN
IF @CurrentPage = 1
BEGIN
IF @GROUP = 1
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
+ ' GROUP BY ' + @GroupColumn
SET @strCount = @strCount + 'SET @TotalCount=@@ROWCOUNT'
SET @strSql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @Column
+ ' FROM ' + @Table + ' GROUP BY ' + @GroupColumn + ' ' +
@strOrderType
END
ELSE
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
SET @strSql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @Column
+ ' FROM ' + @Table + ' ' + @strOrderType
END
END
ELSE
BEGIN
IF @GROUP = 1
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
+ ' GROUP BY ' + @GroupColumn
SET @strCount = @strCount + 'SET @TotalCount=@@ROWCOUNT'
SET @strSql = 'SELECT * FROM (SELECT TOP (2000) ' + @Column
+ ',ROW_NUMBER() OVER(' + @strOrderType +
') AS NUM FROM ' + @Table + ' GROUP BY ' + @GroupColumn +
') AS T WHERE NUM BETWEEN ' + STR(@PageCount + 1) +
' AND ' + STR(@PageCount + @PageSize)
END
ELSE
BEGIN
SET @strCount = 'SELECT @TotalCount=COUNT(*) FROM ' + @Table
SET @strSql = 'SELECT * FROM (SELECT TOP (2000) ' + @Column
+ ',ROW_NUMBER() OVER(' + @strOrderType +
') AS NUM FROM ' + @Table + ') AS T WHERE NUM BETWEEN ' +
STR(@PageCount + 1) + ' AND ' + STR(@PageCount + @PageSize)
END
END
END
EXEC sp_executesql @strCount,
N'@TotalCount INT OUTPUT',
@TotalCount OUTPUT
IF @TotalCount > 2000
BEGIN
SET @TotalCount = 2000
END
IF @TotalCount%@PageSize = 0
BEGIN
SET @TotalPage = @TotalCount / @PageSize
END
ELSE
BEGIN
SET @TotalPage = @TotalCount / @PageSize + 1
END
SET NOCOUNT ON
EXEC (@strSql)
END
SET NOCOUNT OFF
/**调用实例:
USE [ApplicationForm]
GO
DECLARE @return_value int,
@TotalCount int,
@TotalPage int
SELECT @TotalCount = 0
SELECT @TotalPage = 0
EXEC @return_value = [dbo].[Pager]
@TotalCount = @TotalCount OUTPUT,
@TotalPage = @TotalPage OUTPUT,
@Table = N' Process AS S LEFT JOIN UserTable AS C ON C.ID = S.Level1 LEFT JOIN UserTable AS B ON B.ID = S.Level2 LEFT JOIN UserTable AS E ON E.ID = S.next ',
@Column = N' C.Name ,B.Name as Name1,S.Level3 , E.Name as Name2,S.DocumentsID,S.Info,S.Note ,S.ID',
@OrderColumn = N'S.ID Desc',
@GroupColumn = N'S.ID',
@PageSize = 10,
@CurrentPage = 1,
@Group = 0,
@Condition = N'( Level3 =3 or next = 4)'
SELECT @TotalCount as N'@TotalCount',
@TotalPage as N'@TotalPage'
SELECT 'Return Value' = @return_value
GO
**/
遇到的小问题:sql语句没有间隔保存,每个语句连接加上空格。多表连接出现相同表名,用别名,如
C.Name ,B.Name as Name1,S.Level3 , E.Name as Name2,S.DocumentsID,S.Info,S.Note ,S.ID