code -------------------------------------- % '-------------------------數(shù)據(jù)庫連接----------------------- Set objConn = Server.CreateObject("ADODB.Connection") objConn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" _ "Data Source=" Server.MapPath("data.mdb") objConn.Open '-------------------------數(shù)據(jù)庫連接----------------------- '-------------------------檢索數(shù)據(jù)----------------------- strSQL = "Select id,DataColumn FROM DataTable" 'Sql語句，檢索數(shù)據(jù)庫 Set objRS = Server.CreateObject("ADODB.Recordset") '創(chuàng)建記錄集 objRS.Open strSQL, objConn, 1, 1 '執(zhí)行檢索 Count=objRS.RecordCount '得到記錄總數(shù) Item=4 '顯示記錄數(shù) '-------------------------檢索數(shù)據(jù)----------------------- '------------------------------------------------------------------------------- redim a(Item, 2),t(Count) '定義2數(shù)組，數(shù)組a用來儲存記錄，數(shù)組t用來刪選記錄 '--------------------------------------- '初始數(shù)組數(shù)值，目的為了插入數(shù)據(jù)以后和此值做比較 for each j in t j=0 next '--------------------------------------- '--------------------------------------- ' 隨機抽取記錄號 Randomize timer '初始化隨機數(shù)生成器 for j=1 to Item k=int(rnd*Count+1) '從總數(shù)里面隨機取一條記錄 do while t(k)0 '判斷是否記錄是否已經(jīng)在數(shù)組中 k=int(rnd*Item+1) loop t(k)=1 '第k條記錄被選中 next '-------------------------------------- j=1:i=1'定義下標 '-------------------------------------- ' 循環(huán)選取數(shù)據(jù)集objRS中的部分記錄存放到數(shù)組中 Do While Not objRS.Eof if t(j)=1 then a(i,1)=objRS("id") '記錄id a(i,2)=objRS("DataColumn") '記錄內(nèi)容 i=i+1 end if j=j+1 objRS.MoveNext Loop '-------------------------------------- '------------------------------------------------------------------------------- '----------------------------顯示內(nèi)容-------------------- for i=1 to Item Response.write "序號"a(i,1)" " Response.write "內(nèi)容"a(i,2)"p" next '----------------------------顯示內(nèi)容-------------------- '--------------------------- '釋放資源 objRs.Close set objRs=nothing objConn.Close set objConn=nothing '--------------------------- % Data id DataColumn -------------------------- 1 a 2 b 3 c 4 d 5 e
SELECT groupid GroupID , filegroup_name (groupid) GroupName , name FileName , CASE status 0x40 WHEN 0x40 THEN 1 ELSE 0 END IsLogFile , size / 8 SizeKB , maxsize / 8 MaxSizeKB , CASE status 0x100000 WHEN 0x100000 THEN growth ELSE 0 END GrowthPersent , CASE status 0x100000 WHEN 0 THEN growth / 8 else 0 END GrowthKB , filename OsFileName FROM .. sysfiles ORDER BY status 0x40,groupid,fileid
'調(diào)用方法：Call sc ' Public Function sc() Dim dbs As Database Dim tdf As TableDef Set dbs = CurrentDb For Each tdf In dbs.TableDefs If Len(tdf.Connect) = 0 And tdf.Attributes = 0 Then DoCmd.DeleteObject acTable, tdf.Name End If Next tdf dbs.Close End Function
標簽: 數(shù)據(jù)庫
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