[MSSQL]SQL通用存储过程分页,支持多表联合

注意：该存储过程处理逻辑被发现有严重错误，并不能实现 任意排序等功能。

GO

CREATE PROCEDURE usp_PagingLarge

@TableNames VARCHAR(200), --表名，可以是多个表，但不能用别名

@PrimaryKey VARCHAR(100), --主键，可以为空，但@Order为空时该值不能为空

@Fields VARCHAR(200), --要取出的字段，可以是多个表的字段，可以为空，为空表示select *

@PageSize INT, --每页记录数

@CurrentPage INT, --当前页，0表示第1页

@Filter VARCHAR(200) = '', --条件，可以为空，不用填 where

@Group VARCHAR(200) = '', --分组依据，可以为空，不用填 group by

@Order VARCHAR(200) = '' --排序，可以为空，为空默认按主键升序排列，不用填 order by

AS

BEGIN

DECLARE @SortColumn VARCHAR(200)

DECLARE @Operator CHAR(2)

DECLARE @SortTable VARCHAR(200)

DECLARE @SortName VARCHAR(200)

IF @Fields = ''

SET @Fields = '*'

IF @Filter = ''

SET @Filter = 'WHERE 1=1'

ELSE

SET @Filter = 'WHERE ' + @Filter

IF @Group <>''

SET @Group = 'GROUP BY ' + @Group

IF @Order <> ''

BEGIN

DECLARE @pos1 INT, @pos2 INT

SET @Order = REPLACE(REPLACE(@Order, ' asc', ' ASC'), ' desc', ' DESC')

IF CHARINDEX(' DESC', @Order) > 0

IF CHARINDEX(' ASC', @Order) > 0

BEGIN

IF CHARINDEX(' DESC', @Order) < CHARINDEX(' ASC', @Order)

SET @Operator = '<='

ELSE

SET @Operator = '>='

END

ELSE

SET @Operator = '<='

ELSE

SET @Operator = '>='

SET @SortColumn = REPLACE(REPLACE(REPLACE(@Order, ' ASC', ''), ' DESC', ''), ' ', '')

SET @pos1 = CHARINDEX(',', @SortColumn)

IF @pos1 > 0

SET @SortColumn = SUBSTRING(@SortColumn, 1, @pos1-1)

SET @pos2 = CHARINDEX('.', @SortColumn)

IF @pos2 > 0

BEGIN

SET @SortTable = SUBSTRING(@SortColumn, 1, @pos2-1)

IF @pos1 > 0

SET @SortName = SUBSTRING(@SortColumn, @pos2+1, @pos1-@pos2-1)

ELSE

SET @SortName = SUBSTRING(@SortColumn, @pos2+1, LEN(@SortColumn)-@pos2)

END

ELSE

BEGIN

SET @SortTable = @TableNames

SET @SortName = @SortColumn

END

END

ELSE

BEGIN

SET @SortColumn = @PrimaryKey

SET @SortTable = @TableNames

SET @SortName = @SortColumn

SET @Order = @SortColumn

SET @Operator = '>='

END

DECLARE @type varchar(50)

DECLARE @prec int

SELECT @type=t.name, @prec=c.prec

FROM sysobjects o

JOIN syscolumns c on o.id=c.id

JOIN systypes t on c.xusertype=t.xusertype

WHERE o.name = @SortTable AND c.name = @SortName

IF CHARINDEX('char', @type) > 0

SET @type = @type + '(' + CAST(@prec AS varchar) + ')'

DECLARE @TopRows INT

SET @TopRows = @PageSize * @CurrentPage + 1

print @TopRows

print @Operator

EXEC('

DECLARE @SortColumnBegin ' + @type + '

SET ROWCOUNT ' + @TopRows + '

SELECT @SortColumnBegin=' + @SortColumn + ' FROM ' + @TableNames + ' ' + @Filter + ' ' + @Group + ' ORDER BY ' + @Order + '

SET ROWCOUNT ' + @PageSize + '

SELECT ' + @Fields + ' FROM ' + @TableNames + ' ' + @Filter + ' AND ' + @SortColumn + '' + @Operator + '@SortColumnBegin ' + @Group + ' ORDER BY ' + @Order + '

')

END

GO

--调用例子：

--1.单表/单排序

EXEC usp_PagingLarge 'bigtable','d_id','d_id,d_title,d_content,d_time',20,1,'','','d_id desc'

--2.单表/多排序

EXEC usp_PagingLarge 'bigtable','d_id','*',20,0,'','','d_time asc,d_id desc'

--3.多表/单排序

EXEC usp_PagingLarge 'bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id', 'bigtable.d_id', 'bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author', 20, 0, '', '', 'bigtable.d_id asc'

--4.多表/多排序

EXEC usp_PagingLarge 'bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id', 'bigtable.d_id', 'bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author', 20, 0, '', '', 'bigtable.d_time asc,bigtable.d_id desc'

与自定义分页结合例子：

/Files/jiny-z/Paging_Custom.rar