分页存储过程

来源：互联网发布：长沙中电软件园程序员编辑：程序博客网时间：2024/06/07 03:56

CREATE PROCEDURE GetRecordFromPage
    @tblName      varchar(255),       -- 表名
    @fldName      varchar(255),       -- 字段名
    @PageSize     int = 10,           -- 页尺寸
    @PageIndex    int = 1,            -- 页码
    @OrderType    bit = 0,            -- 设置排序类型, 非 0 值则降序
    @strWhere     varchar(2000) = '' -- 查询条件 (注意: 不要加 where)
AS

declare @strSQL   varchar(6000)       -- 主语句
declare @strTmp   varchar(1000)       -- 临时变量
declare @strOrder varchar(500)        -- 排序类型

if @OrderType != 0 --降序
begin
    set @strTmp = '<(select min'
    set @strOrder = ' order by [' + @fldName + '] desc'
end
else --升序
begin
    set @strTmp = '>(select max'
    set @strOrder = ' order by [' + @fldName +'] asc'
end

if @PageIndex = 1
begin
    set @strTmp = ''
    if @strWhere != ''
        set @strTmp = ' where (' + @strWhere + ')'

set @strSQL = 'select top ' + str(@PageSize) + ' * from ['
+ @tblName + ']' + @strTmp + ' ' + @strOrder
end

else begin
if @strWhere != ''
      set @strSQL = 'select top ' + str(@PageSize) + ' * from ['
          + @tblName + '] where [' + @fldName + ']' + @strTmp + '(['
          + @fldName + ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' ['
          + @fldName + '] from [' + @tblName + '] where ' + @strWhere + ' '
          + @strOrder + ') as tblTmp) and ' + @strWhere + ' ' + @strOrder
else
      set @strSQL = 'select top ' + str(@PageSize) + ' * from ['
      + @tblName + '] where [' + @fldName + ']' + @strTmp + '(['
      + @fldName + ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' ['
      + @fldName + '] from [' + @tblName + ']' + @strOrder + ') as tblTmp)'
      + @strOrder

end

exec (@strSQL)