Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Access´ø²ÎÊýµÄ²éѯ

ÔÚaccessÖÐÔõôִÐÐselect TOP (@size) * from table1
Õâ¸öTOPÔõô´ø²ÎÊý²éѯ°¡
ÓÃVBA¶¯Ì¬Éú³ÉSQLÓï¾ä£¬ÔÙÖ´ÐÐ

²»ÄÜÖ±½ÓÓÃSQLÓï¾ä£¬ÓÃ×Ö·û´®ÀÛ¼ÓÉú³ÉSQLÓï¾äµÄ·½·¨À´Ö´ÐÐSQLÓï¾ä

top n Õâ¸öûÓа취ʹÓòÎÊý¡£
ÄãÖ»ÄÜͨ¹ýÄãµÄ³ÌÐòÀ´Éú³ÉÕâ¸öSQLÓï¾ä£¬»òÕ߸ù¾ÝÕâ¸öSQLÓï¾äÉú³ÉÄãµÄ²éѯÁË¡£

ѧϰѧϰ

½«top ²ÎÊý´«µÝ½øÈ¥£¬´ò¿ª¼Ç¼¼¯·ÃÎʼ´¿É

Dim rstSJK As new ADODB.Recordset
Dim cn As new ADODB.Connection
Set CN = CurrentProject.Connection
sql="select top " & n & " from tt "
rstSJK.Open sql, cn, adOpenKeyset, adLockOptimistic, adCmdText

Dim rstSJK As New ADODB.Recordset
n = 10
SQL = "select top " & n & " * from aa "
MsgBox SQL
rstSJK.Open SQL, CurrentProject.Connection, adOpenKeyset, adLockOptimistic, adCmdText
Do While Not rstSJK.EOF
......
rstSJK.MoveNext
Loop

ÒýÓÃ
½«top ²ÎÊý´«µÝ½øÈ¥£¬´ò¿ª¼Ç¼¼¯·ÃÎʼ´¿É

ͬÒâ

ÒýÓà 5 Â¥ wwwwa µÄ»Ø¸´:
½«top ²ÎÊý´«µÝ½øÈ¥£¬´ò¿ª¼Ç¼¼¯·ÃÎʼ´¿É
²»Ã÷°×°¡

ÒýÓÃ
ÒýÓà 5 Â¥ wwwwa µÄ»Ø¸´:
½«top ²ÎÊý´«µÝ½øÈ¥£¬´ò¿ª¼Ç¼¼¯·ÃÎʼ´¿É
²»Ã÷°×°¡

7Â¥¾ÍÊÇVBAʾÀý

ÔÚÄãµÄ³ÌÐòÖÐ

int iSize=10;
string sql = "select top " + iSize + " * from table1 ";



Ïà¹ØÎÊ´ð£º

ODBC Microsoft accessµÇ¼ʧ°Ü

н¨µ¥Îĵµ³ÌÐòÑ¡ÔñODBCÖеÄÊý¾ÝԴʱ×ÜÊǵ¯³öÒ»¸öµÇ¼´°¿ÚÒªÊÚȨ¡£¡£¡£»¹ÒªÃÜÂë¡£¡£¡£
      ÆäËûµÄµ÷ÓÃODBCÖеÄÊý¾ÝÔ´ÊǾͲ»ÐèÒªÕâ¸ö£¬¿ÉÒÔÔËÐС£
  ŪÁ˺ó¤Ê±¼äÁË¡£¡£¡£
ûÓö¼û¹ý£¬¿ ......

access±íÖÐʱ¼ä²îµÄÉú³É

access±íÖÐÓÐ3¸ö×ֶΣ¬starttime£¬endtime£¬timespan£¬
ÊäÈëǰÁ½¸öÖµºóÔõô×Ô¶¯Éú³ÉtimespanÄØ
´´½¨²éѯ¡£

select *, endtime-starttime from your table


»òÕßÔÚÄãµÄÊäÈë´°ÌåÖÐÓÃVBA´úÂëʵÏÖ¡ ......

Çë¸øÒ»¸öACCESS¶àÌõ¼þ²éѯµÄÀý×Ó

Çë¸øÒ»¸öACCESS¶àÌõ¼þ²éѯµÄÀý×Ó,×Ö¶Î:ÐÕÃû,µç»°,¹«Ë¾,µØÖ·Îª²éѯÌõ¼þ,Ö»Òª²»Îª¿Õ,¾Í×÷Ϊ²éѯÌõ¼þ.
ÄãÏÈ給這個Щ×Ö¶Î設ÖÃ變Á¿並賦³õÖµ為:%,
ÔÙÔÚ²é詢 ......

accessÌå»ý

Ò»¸ö³ÌÐòÍùaccessÊý¾Ý¿âÀïÃæÐ´¼Ç¼£¬Ã¿Ììд5ÍòÌõ£¬µÚ¶þÌìɾ³ýǰһÌìµÄ5ÍòÌõ
µ«ÊÇaccessÎļþµÄÌå»ý»áÂýÂýÔö¼Ó¡£¡£¡£
ÎÒ²»Ñ¹ËõÊý¾Ý¿âµÄÇé¿öÏ£¬Ê²Ã´Ê±ºòÊý¾Ý¿âµÄÌå»ý²Å²»Ôö¼ÓÄØ£¿

ÎÒɾ³ý¼Ç¼µÄʱºò£¬Êý¾Ý¿âÌå ......

accessÖÐreplaceÎÊÌâ

ÎÒÓÐÒ»¸öUnits±í,½á¹¹Îª:
  ID              UnistsName
  UN1            ºÚÁú½­¶«·½Ñ§Ôº
  UN2      ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ