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    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

    以上就是本文的全部内容,希望本文的内容对大家的学习或者工作能带来一定的帮助,同时也希望多多支持脚本之家!

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