通用的SQL存储过程分页

Create PROCEDURE UP_GetCollectionPage
(
@tblName VARCHAR(255), -- 表名
@strGetFields VARCHAR(1000) = '*', -- 需要返回的列
@fldName VARCHAR(255)='', -- 排序的字段名
@PageSize INT = 10, -- 页尺寸
@PageIndex INT = 1, -- 页码
@doCount BIT = 0, -- 返回记录总数, 非 0 值则返回
@OrderType BIT = 0, -- 设置排序类型, 非 0 值则降序
@strWhere VARCHAR(1500) = '' -- 查询条件 (注意: 不要加 Where)
)
AS
SET NOCOUNT ON
DECLARE @strSQL VARCHAR(5000) -- 主语句
DECLARE @strTmp VARCHAR(110) -- 临时变量
DECLARE @strOrder VARCHAR(400) -- 排序类型
IF(@doCount != 0)
BEGIN
IF @strWhere !=''
SET @strSQL = 'Select COUNT(1) AS Total FROM [' + @tblName + '] Where '+@strWhere
ELSE
SET @strSQL = 'Select COUNT(1) AS Total FROM [' + @tblName + ']'
END
--以上代码的意思是如果@doCount传递过来的不是0，就执行总数统计。以下的所有代码都是@doCount为0的情况
ELSE
BEGIN
IF @OrderType != 0
BEGIN
SET @strTmp = '<(Select MIN'
SET @strOrder = ' orDER BY [' + @fldName +'] DESC'
--如果@OrderType不是0，就执行降序，这句很重要
END
ELSE
BEGIN
SET @strTmp = '>(Select MAX'
SET @strOrder = ' orDER BY [' + @fldName +'] ASC'
END
IF @PageIndex = 1
BEGIN
IF @strWhere != ''
SET @strSQL = 'Select TOP ' + str(@PageSize) +' '+@strGetFields+ ' FROM [' + @tblName + '] Where ' + @strWhere + ' ' + @strOrder
ELSE
SET @strSQL = 'Select TOP ' + str(@PageSize) +' '+@strGetFields+ ' FROM ['+ @tblName + '] '+ @strOrder
--如果是第一页就执行以上代码，这样会加快执行速度
END
ELSE
BEGIN
--以下代码赋予了@strSQL以真正执行的SQL代码
SET @strSQL = 'Select TOP ' + str(@PageSize) +' '+@strGetFields+ ' FROM ['
+ @tblName + '] Where [' + @fldName + ']' + @strTmp + '(['+ @fldName + ']) FROM (Select TOP ' + str((@PageIndex-1)*@PageSize) + ' ['+ @fldName + '] FROM [' + @tblName + ']' + @strOrder + ') AS tblTmp)'+ @strOrder
IF @strWhere != ''
SET @strSQL = 'Select TOP ' + str(@PageSize) +' '+@strGetFields+ ' FROM ['
+ @tblName + '] Where [' + @fldName + ']' + @strTmp + '(['
+ @fldName + ']) FROM (Select TOP ' + str((@PageIndex-1)*@PageSize) + ' ['
+ @fldName + '] FROM [' + @tblName + '] Where ' + @strWhere + ' '
+ @strOrder + ') AS tblTmp) AND ' + @strWhere + ' ' + @strOrder
END
END
EXEC (@strSQL)
SET NOCOUNT OFF
GO

//后台调用
/// 多条件组合查询
///
/// 供应商代码
/// 物料代码
/// 合同有效日期搜索开始日期
/// 合同有效日期搜索结束日期
/// 厂别
/// 状态
/// POCT
/// 排序字段
///
public IList MultiSearch(string suppliercode, string materialcode, string beginDate, string endDate, string companyType, string formState, string POCT, string orderField, int pagesize, int pageindex)
{
SqlParameter[] Parms =
{
new SqlParameter("@tblName",SqlDbType.VarChar,255),
new SqlParameter("@strGetFields",SqlDbType.VarChar,1000),
new SqlParameter("@fldName",SqlDbType.VarChar,255),
new SqlParameter("@PageSize",SqlDbType.Int,4),
new SqlParameter("@PageIndex",SqlDbType.Int,4),
new SqlParameter("@doCount",SqlDbType.Int,4),
new SqlParameter("@OrderType",SqlDbType.Int,4),
new SqlParameter("@strWhere",SqlDbType.VarChar,1500),
};
Parms[0].Value = "UBS_CAS_PriceForm";
Parms[1].Value = "*";
Parms[2].Value = "FormID";
Parms[3].Value = pagesize;
Parms[4].Value = pageindex;
Parms[5].Value = 0;
Parms[6].Value = 1;