SQLServer存储过程实现单条件分页

话不多说,请看代码:

SQLServer Procedure Pagination_basic:

ALTER PROCEDURE [qiancheng].[Pagination_basic] (

@Table_name VARCHAR (255),

--name of table

@Rows_target VARCHAR (1000) = '*',

--search rows

@Rows_condition VARCHAR (1000) = '',

--the condition to find target (no where)

@Rows_order VARCHAR (255) = '',

--the rows to rank

@Order_type INT = 0,

-- *Q*C* 0 normal 1 down

@PageSizes INT = 10,

--the size of each page

@PageIndex INT = 1,

--current page

@ShowPages INT,

--whether show the pages *Q*C* 1-yes 0-no

@ShowRecords INT,

--whether show the record *Q*C* 1-yes 0-no

@Records_total INT OUTPUT,

--returned total records

@Pages_total INT OUTPUT --returned total pages

) AS

DECLARE @MainSQL_QC nvarchar (2000) --Main SQL sentence

DECLARE @Var_QC VARCHAR (100) --Temporary variate

DECLARE @Order_QC VARCHAR (400) --the sort to rank

SET @Records_total = 0

SET @Pages_total = 0

IF @ShowRecords = 1

OR @ShowPages = 1

BEGIN

IF @Rows_condition != ''

SET @MainSQL_QC = 'select @Records_total = count(1) from [' + @Table_name + '] where ' +@Rows_condition

ELSE

SET @MainSQL_QC = 'select @Records_total = count(1) from [' + @Table_name + ']' EXEC sp_executesql @MainSQL_QC,

N'@Records_total int out' ,@Records_total OUTPUT

END

IF @ShowPages = 1

BEGIN

IF @Records_total <= @PageSizes

SET @Pages_total = 1

ELSE

BEGIN

SET @Pages_total = @Records_total /@PageSizes

IF (@Records_total %@PageSizes) > 0

SET @Pages_total = @Pages_total + 1

END

END

IF @Order_type = 1

BEGIN

SET @Var_QC = '<(select min'

SET @Order_QC = ' order by [' + @Rows_order + '] desc'

END

ELSE

BEGIN

SET @Var_QC = '>(select max'

SET @Order_QC = ' order by [' + @Rows_order + '] asc'

END

IF @PageIndex = 1

BEGIN

IF @Rows_condition != ''

SET @MainSQL_QC = 'select top ' + str(@PageSizes) + ' ' +@Rows_target + ' from [' + @Table_name + '] where ' + @Rows_condition + ' ' + @Order_QC

ELSE

SET @MainSQL_QC = 'select top ' + str(@PageSizes) + ' ' +@Rows_target + ' from [' + @Table_name + '] ' + @Order_QC

END

ELSE

BEGIN

IF @Rows_condition != ''

SET @MainSQL_QC = 'select top ' + str(@PageSizes) + ' ' +@Rows_target + ' from [' + @Table_name + '] where [' + @Rows_order + ']' + @Var_QC + '([' + @Rows_order + ']) from (select top ' + str((@PageIndex - 1) *@PageSizes) + ' [' + @Rows_order + '] from [' + @Table_name + '] where ' + @Rows_condition + ' ' + @Order_QC + ') as Tmep_QC) and ' + @Rows_condition + ' ' + @Order_QC

ELSE

SET @MainSQL_QC = 'select top ' + str(@PageSizes) + ' ' +@Rows_target + ' from [' + @Table_name + '] where [' + @Rows_order + ']' + @Var_QC + '([' + @Rows_order + ']) from (select top ' + str((@PageIndex - 1) *@PageSizes) + ' [' + @Rows_order + '] from [' + @Table_name + ']' + @Order_QC + ') as Tmep_QC)' + @Order_QC

END EXEC (@MainSQL_QC)

调用:execute pagination_basic 'UserDetail','*','','id','1','5','1','1','1','',''

主要是末尾的语句,拆分下来便是这样:

select top 每页数 列名 from [表名] where [排序字段名] <    --1 倒序输出若列 小于之前页数的最小值

(select min ( [排序字段名] )from --2 获得一个指定列名中的最小值并输出

(select top (当前页-1)*每页数 [排序字段名] from [表名] where [条件] [排序类型]) --3 选择之前页数总数据倒序输出

as Tmep_QC)--4 建立一个名为Tmep_QC的临时表--2 获得一个指定列名中的最小值并输出

and [条件] [排序类型]--1 倒序输出若列 小于之前页数的最小值

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