ACCESSÊý¾Ý¿âµ½SQLÊý¾Ý¿â
´ÓAccessÊý¾Ý¿âµ¼Èëµ½SQL
·½·¨Ò»:
ÔÚMSsqlÖÐÒª¼òÀúODBC..·½·¨±È½Ï±¿µã..
·½·¨¶þ:
Ö±½Ó´ÓAccessÉýǨµ½MSsql..
ÒòΪAccessÊý¾Ý¿âÓÐÉèÖÃÃÜÂë..»¹Õæ²»ºÃ¸ã..¸ãÁ˺ü¸´Î¶¼Ê§°ÜÁË..
ÀûÓ÷½·¨¶þ..Ò»´Î³É¹¦..
ÓÃÊý¾Ý¿âÉýǨ...¼òµ¥...
½¨ÒéʹÓõڶþÖÖ·½·¨µ¼ÈëACCESSÊý¾Ý¿âµ½MSSQLÊý¾Ý¿âÖÐ..Ê¡ÊÂ!!!
Ïà¹ØÎĵµ£º
ʹÓÃSQLʱ±ØÐ뿼ÂǵĹؼüÒòËØ
Ò»£¬»ñµÃ½á¹û¼¯ËùÐè·ÃÎʵÄÊý¾ÝÁ¿£¬ÔÚûÓÐÈ·¶¨Ä¿±êÈÝÁ¿Ö®Ç°£¬ºÜÄѶ϶¨²éѯִÐеÄЧÂÊ£»
¶þ£¬¶¨Òå½á¹û¼¯ËùÐèµÄ²éѯÌõ¼þ£¬Ò²¾ÍÊÇÈçºÎÏÞ¶¨½á¹û¼¯£¬ÈçºÎºÏÀíµÄʹÓÃsql×Ӿ䣻
Èý£¬½á¹û¼¯µÄ´óС£¬È¡¾öÓÚ±íµÄ´óСºÍ¹ýÂËÌõ¼þµÄϸ½Ú£¬µ«²»¶¼ÊÇÕâÑù£¬µäÐ͵ÄÇé¿öÊÇ£¬Èô¸É¸ö¶ÀÁ¢Ê¹ÓÃʱЧÂʲ»¸ßµÄÌõ ......
'´´½¨Êý¾Ý¿â
Private Sub Create(ByVal mdbPath As String)
If File.Exists(mdbPath) Then
Throw New Exception("Ä¿±êÊý¾Ý¿âÒѾ´æÔÚ£¬ÎÞ·¨´´½¨")
......
1) ʱ¼äת»»º¯ÊýÖÐÈç¹ûÓÐʱ¼ä±äÁ¿yyyy-mm-ddÁ½±ßÐèÁ½''
to_date(''' || to_char(a_valid_date_end, 'yyyy-mm-dd') ||''', ''yyyy-mm-dd'')
2) select distinct(e.itemnum) bulk collect into v_itemnum
½«×Ö·û´®Êý×éÒÔ·Ö¸ô·û·Ö¸ôµÄ×Ö·û´®µ÷ÓÃ
pkg_maximo_common.get_string(v_itemnum, ',', '')
3) unionÖ»Êǽ«Á½¸ö½á¹ ......
GROUP BY ×Ó¾äÓÃÀ´¶ÔÖ¸¶¨µÄ×Ö¶Î×ö·Ö×飬²úÉúÒ»¸ö»ã×ÜÐÅÏ¢¡£ £¨1£©group byÓï¾ä¶ÔselectºóËùÑ¡ÔñµÄ×Ö¶ÎÓÐÒ»¶¨µÄÏÞÖÆ£¬¼´selectºóûÓÐʹÓþۺϺ¯ÊýµÄ×ֶαØÐë°üº¬ÔÚgroup by Óï¾äºóÃæµÄ½á¹û¼¯ÖС££¨GROUP BY ¹Ø¼ü×Öºó¸úÒ»¸öÁеÄÁÐ±í£¬³ÆÎª×éºÏÁУ©. £¨2£©²»ÄܶÔÊý¾ÝÀàÐÍΪ ntext¡¢text¡¢image »ò bit µÄÁÐʹÓà GROUP BY »ò ......