access²Ù×÷
uses
ADODB;
procedure TForm1.SetupTable(sender:tobject);
Var
adocon1:TADOConnection;
strSQL:string;
Const
SConnectionString= 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%s;'
+'Jet OLEDB:Database Password=%s;';
begin
adocon1:=TADOConnection.creat(self);
adocon1.ConnectionString:=format(SConnectionString,[ExtractFilePath(application.ExeName)+'Happle.mdb','111111']);
strsql:='Create table Shops('+
'ShopID counter PRIMARY KEY,'+
'ShopName char(20),'+
'ShopADD char(30),'+
'ShopPhone char(15),'+
'ShopManager char(10),'+
'ShopMangerPhone char(15),'+
'Remark char(20))';
adocon1.Execute(strsql);
//±íShops½¨Á¢
adocon1.close;
adocon1.free;
end;
3.Ìí¼Ó¼Ç¼
·½·¨ÀàËÆÉÏÃæ
strsql:='insert into shops (shopname) values(''Newshop'')';
adocon1.Execute(strsql);
×¢ÒâµÄÊÇ,insert into ¿ÉÒÔ½ö²åÈë±ØÐèµÄ»òÖ¸¶¨µÄ×Ö¶ÎÖµ
----------------------------------------------------------------------------------------------
1.DELPHIÖвÙ×÷ACCESSÊý¾Ý¿â(½¨Á¢.mdbÎļþ,ѹËõÊý¾Ý¿â)
ÒÔÏ´úÂëÔÚWIN2K,D6,MDAC2.6ϲâÊÔͨ¹ý,
±àÒëºÃµÄ³ÌÐòÔÚWIN98µÚ¶þ°æÎÞACCESS»·¾³ÏÂÔËÐгɹ¦.
//ÉùÃ÷Á¬½Ó×Ö·û´®
Const
SConnectionString = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%s;'
+'Jet OLEDB:Database Password=%s;';
//=============================================================================
// Procedure: GetTempPathFileName
// Author : ysai
// Date : 2003-01-27
// Arguments: (None)
// Result : string
//=============================================================================
function GetTempPathFileName():string;
//È¡µÃÁÙʱÎļþÃû
var
SPath,SFile:array [0..254] of char;
begin
GetTempPath(254,SPath);
GetTempFileName(SPath,'~SM',0,SFile);
result:=SFile;
DeleteFile(result);
end;
Ïà¹ØÎĵµ£º
ÓÉÓÚ¹¤×÷ÐèÒª£¬Ê¹ÓÃACCESSÊý¾Ý¿â´æ´¢¸Û¿ÚÖÜΧAISÉ豸½ÓÊÕµ½µÄ´¬²°Êý¾Ý¡£ÓÉÓÚÔÚÈ«¹úºÜ¶à¸Û¿ÚÓвɼ¯µã£¬Òò´Ë£¬Êý¾ÝÁ¿ºÜ´ó£¬Ã¿Èý·ÖÖÓ´æ´¢Ò»´ÎÊý¾ÝµÄ»°£¬ÄÇôһ´Î½«ÓÐ2000¶àеĴ¬Î»Êý¾Ý¡£ÕâЩÊý¾ÝÈë¿âºó£¬Êý¾Ý¿âÎļþ´óС½«ÐÂÔö1Mµ½2M×óÓÒ¡£¸ù¾ÝÕâ¸öƵÂÊ£¬Ò»¸öСʱÊý¾Ý¿âÎļþ½«Ôö¼Ó40M£¬Ò»Ìì¾ÍÊÇ960M¡£
ΪÁËÌá¸ßÊý¾Ý¿âЧÂÊ£¬ÎÒ ......
1¡¢VSS¿Í»§¶Ë´ò¿ª¹¤³ÌʱÌáʾ Access to file"\\***\rights.dat" denied
¸ÃÌáʾÊÇָûÓÐÍøÂç·ÃÎʵÄȨÏÞ£¬Óû§ÒªÔÚ¹²ÏíÎļþ¼ÐÓпÉдµÄȨÏ޲ſÉÒÔ¡£ÎÒÃÇÔÚÉèÖù²ÏíÎļþµÄʱºòÓ¦¸ÃÔÊÐíдÈë¡£
2¡¢ÎªVSSÉèÖû·¾³±äÁ¿
ĬÈÏÇé¿öÏÂÎÒÃÇÿ´Î´ò¿ªVSS¿Í»§¶ËÌî³äµÄÓû§Ãû¶¼Êǵ±Ç°ÏµÍ³µÇ½µÄÓû§£¬ÕâÑùʹÓÃÆðÀ´ºÜ²»·½±ã¡ ......
<connectionStrings>
<add name="qxConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Web/App_Data/db2.mdb;" providerName="System.Data.OleDb"/>
</connectionStrings> ......
BOOL GetAllTables(LPCTSTR databasefile,CStringArray & dbtables)
{
//#import "msado15.dll" no_namespace rename("EOF", "adoEOF") //¿½±´ msado15.dll µ½¹¤³ÌĿ¼
_Conn ......
Oracle,MySQL,MSSQL ServerºÍAccessÊý¾Ý¿âµÄͳ¼Æº¯Êý
ÎÒÃÇÔÚ±à³ÌÖг£ÓõÄͳ¼Æº¯ÊýÓмÆÊý,ÇóºÍ,Çó×î´óÖµ,Çó×îСֵ,Ç󯽾ù,·½²îºÍ±ê×¼²î.
·½²î(Variance)
·½²îÊDZê׼ƫ²îµÄƽ·½¡£×éÖеÄÖµ£¬ÓëËüÃÇÆ½¾ùÖµÖ®¼äÆ«Àë³Ì¶ÈµÄ¶ÈÁ¿¡£
±ê׼ƫ²î(Standard Deviation)
Ò»¸ö²ÎÊý£¬Ö¸³öÒ»ÖÖ·½Ê½£¬Ò»¸ö¸ÅÂʺ¯ÊýÒÔÕâÖÖ·½Ê½·Ö²¼ÔÚÆ½¾ùÖµ¸ ......