100 分求救 一个大家很熟悉的存储过程的问题!!!
dfesd 2006-06-03 07:42:31 我用的是 ASP.NET结合存储过程写的通用搜索分页程序 网上找的 谁写的就不知道了 但是发现存在缺陷 WHERE 语句如果有 or 例如 ClassId=1 or ClassId=2 就不好用了
存储过程代码如下:
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up_GetTopicList.sql
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CREATE proc up_GetTopicList
@a_TableList Varchar(200),
@a_TableName Varchar(30),
@a_SelectWhere Varchar(500),
@a_SelectOrderId Varchar(20),
@a_SelectOrder Varchar(50),
@a_intPageNo int,
@a_intPageSize int,
@RecordCount int OUTPUT
as
/*定义局部变量*/
declare @intBeginID int
declare @intEndID int
declare @intRootRecordCount int
declare @intRowCount int
declare @TmpSelect NVarchar(600)
/*关闭计数*/
set nocount on
/*求总共根贴数*/
select @TmpSelect = 'set nocount on;select @SPintRootRecordCount = count(*) from '+@a_TableName+' '+@a_SelectWhere
execute sp_executesql
@TmpSelect,
N'@SPintRootRecordCount int OUTPUT',
@SPintRootRecordCount=@intRootRecordCount OUTPUT
select @RecordCount = @intRootRecordCount
if (@intRootRecordCount = 0) --如果没有贴子,则返回零
return 0
/*判断页数是否正确*/
if (@a_intPageNo - 1) * @a_intPageSize > @intRootRecordCount
return (-1)
/*求开始rootID*/
set @intRowCount = (@a_intPageNo - 1) * @a_intPageSize + 1
/*限制条数*/
select @TmpSelect = 'set nocount on;set rowcount @SPintRowCount;select @SPintBeginID = '+@a_SelectOrderId+' from '+@a_TableName+' '+@a_SelectWhere+' '+@a_SelectOrder
execute sp_executesql
@TmpSelect,
N'@SPintRowCount int,@SPintBeginID int OUTPUT',
@SPintRowCount=@intRowCount,@SPintBeginID=@intBeginID OUTPUT
/*结束rootID*/
set @intRowCount = @a_intPageNo * @a_intPageSize
/*限制条数*/
select @TmpSelect = 'set nocount on;set rowcount @SPintRowCount;select @SPintEndID = '+@a_SelectOrderId+' from '+@a_TableName+' '+@a_SelectWhere+' '+@a_SelectOrder
execute sp_executesql
@TmpSelect,
N'@SPintRowCount int,@SPintEndID int OUTPUT',
@SPintRowCount=@intRowCount,@SPintEndID=@intEndID OUTPUT
if @a_SelectWhere='' or @a_SelectWhere IS NULL
select @TmpSelect = 'set nocount off;set rowcount 0;select '+@a_TableList+' from '+@a_TableName+' where '+@a_SelectOrderId+' between '
else
select @TmpSelect = 'set nocount off;set rowcount 0;select '+@a_TableList+' from '+@a_TableName+' '+@a_SelectWhere+' and '+@a_SelectOrderId+' between '
if @intEndID > @intBeginID
select @TmpSelect = @TmpSelect+'@SPintBeginID and @SPintEndID'+' '+@a_SelectOrder
else
select @TmpSelect = @TmpSelect+'@SPintEndID and @SPintBeginID'+' '+@a_SelectOrder
execute sp_executesql
@TmpSelect,
N'@SPintEndID int,@SPintBeginID int',
@SPintEndID=@intEndID,@SPintBeginID=@intBeginID
return(@@rowcount)
--select @@rowcount
GO