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VC+ado+sql´´½¨±í

ÎÒÊý¾Ý¿âÀïÓÉÒ»ÕÅTABLE±í£¬ÏÖÔÚÎÒÒªÒ»ÕÅTABLE1±í¡££¨×¢£ºÎÒËù½¨µÄTABLE1±íͨ¹ý¶Ô»°¿òÉϵÄÒ»±à¼­¿òÊäÈ룬µã»÷°´Å¥ºóÒª½¨Á¢TABLE1±í£¬²¢ÇÒTABLE1±íÖеÄËùÓÐ×Ö¶ÎÊÇ´ÓTABLE±íÖжÁ³ö£¨³ýTABLE±íÖеĵÚÒ»¸öID×ֶΣ©Ò²¾ÍÊÇ˵TABLE1ÖеÄ×ֶκÍTABLEÖеÄÒ»Ñù³ýID×Ö¶ÎÍ⣩£¬Õâ¸öÎÊÌâÔõô½â¾öѽ£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿

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1¡¢¶ÁÈ¡Table±íÖÐËùÓÐ×ֶΣ¬°üÀ¨×Ö¶ÎÊôÐÔ
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C/C++ code:

ADOX::_CatalogPtr pCatalog;
pCatalog.CreateInstance(__uuidof(ADOX::Catalog));

VARIANT var;
var.vt = VT_DISPATCH;
var.pdispVal = m_pConnection;
pCatalog->put_ActiveConnection(var); // ÉèÖÃÁ¬½Ó

ADOX::TablesPtr pTables = pCatalog->Tables;

int iCount = pTables->Count;
for(long i=0;i<iCount;i++) // ʹÓÃlong£¬¶ø·Çint
{
ADOX::_TablePtr pTable = pTables->GetItem(i);

CString strTableName = (TCHAR*)pTable->Name;

m_DatabaseInformation.AddTableName(strTableName);

CTableInformation* pTableInfo = new CTableInformation();
pTableInfo->SetName(strTableName);



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aspÀïÃæ strday=100£¬strb=001

ÎÒÏë¶Á³ö£¬´Óa×ֶεÄÊý×Ö°´´óµ½Ð¡µÄË ......

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procedure produce_proc
    @p001 nvarchar(8000),
    @p002 nvarchar(8000),
    @p003 nvarchar(8000),
  & ......

¹ØÓÚgroup byµÄsqlÓï¾ä£¿

  with adod_dict do
    begin
    close;
    commandtext:='select bgqxcode,count(*) wjsl from wscl_wsda_file where wjnd=:tnd group by bgqxcode'; ......

SQLÓï¾äÎÊÌ⣬¸ßÊÖ°ïæ£¡£¡

½«Ò»¸ö±í21~30ɾ³ý£¬sqlÓï¾äÔõôд
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21-30ÊÇʲôÒâ˼£¿×ֶεϰ¾Ídelete from table1 where col1>=21 and col1<=30
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SQL code:
select * from ±í t where not exists(select 1 from ±í where t.ÈÕÆÚ>ÈÕÆÚ and id=t.id)

SQL ......
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