ASP构造大数据量的分页SQL语句

本文转自： http://hi.baidu.com/gotodbz/blog/item/b8777e1684ad681c972b43c4.html

1 <%@Language = "VBScript" Codepage = "936"%> 2 <% 3 '分页sql语句生成代码 4 Function GetPageSql(TblName,FldName,PageSize,PageIndex,OrderType,StrWhere) 5      Dim StrTemp,StrSql,StrOrder 6      '根据排序方式生成相关代码 7      If OrderType = 0 Then 8          StrTemp = "> (Select Max([" & FldName & "])" 9          StrOrder = " Order By [" & FldName & "] Asc" 10      Else 11          StrTemp = "< (Select Min([" & FldName & "])" 12          StrOrder = " Order By [" & FldName & "] Desc" 13      End If 14      15      '若是第1页则无须复杂的语句 16      If PageIndex = 1 Then 17          StrTemp = "" 18          If StrWhere <> "" Then 19              Strtmp = " Where " & StrWhere 20          End If 21          StrSql = "Select Top " & PageSize & " * From [" & TblName & "]" & Strtmp & StrOrder 22      Else         '若不是第1页，构造sql语句 23          StrSql = "Select Top " & PageSize & " * From [" & TblName & "] Where [" & FldName & "]" & StrTemp & _ 24          " From (Select Top " & (PageIndex-1) * PageSize & " [" & FldName & "] From [" & TblName & "]" 25          If StrWhere <> "" Then 26              StrSql = StrSql & " Where " & StrWhere 27          End If 28          StrSql = StrSql & StrOrder & ") As Tbltemp)" 29          If StrWhere <> "" Then 30              StrSql = StrSql & " And " & StrWhere 31          End If 32          StrSql = StrSql & StrOrder 33      End If 34      GetPageSql = StrSql         '返回sql语句 35 End Function 36 Response.Write(GetPageSql("Message","MessageID",10,1,0,"")) 37 %>