1Â¥:µÅæ´ººØ¿õ
ºÇºÇÕâ¸öÓï¾äÔõô»áдµÃÕâô¸´ÔÓÄØ?
all×Ó¾äÖÐ
Ìõ¼þΪ=
ËùÒÔÖ»¿ÉÄÜÊÇÒ»¸öÖµ,ËùÒÔÕâÌõÓï¾äÍêÈ«¿ÉÒÔ¼ò»¯Îª:
"select
*from
hu_bigclass
where
id<>
"&str
&"order
bypailie"
Èç¹û×Ó²éѯÊÇÒ»¸ö¼¯ºÏÍƼöʹÓÃÕâÑùµÄÓï¾ä
select
*from
hu_bigclass
where
idnot
in(select
idfrom
hu_bigclass
whereÌõ¼þ)
2Â¥:½ÒÑåÁ¼Ìð
²éѯ±íhu_bigclassÖÐid²»µÈÓÚ(selectidfrom
hu_bigclass
where
id="&str&"
order
bypailie
asc) ²éµ½µÄid,
bypailie Êǵ±Ç°ÅÅÐò×ֶΡ£<>
allµ±all×Ó¾äÊý¾Ý¼¯ÊÇÒ»¸öÊý¾ÝµÄ,×÷Óøú<>²î²»¶à¡£
µ±all×Ó¾äÊý¾Ý¼¯ÊǶàÌõÊý¾Ýʱ,·µ»Ø½á¹û¼¯Îª¿Õ¡£
select
*from
table1
where
t1=all(select
1)Ï൱ÓÚ
select
*from
table1
where
t1=1
µ«ÊÇselect
*from
table1
where
t1=all(select
1union
select
2)ûÓÐÊý¾Ý¼¯,ÒòΪt1Õâ¸öÖµ²»ÄÜͬʱµÈÓÚ1ºÍ2
¹ØÓÚsqlÓï¾äÀïÃæµÄa.xx,ºÍb.xx·Ö±ð´ú±íʲôÒâ˼
1Â¥ 4ÖÕ a b´ú±ífromºóÃæµÄ²éѯ½á¹û×÷ΪÁÙʱ±í a£¬bΪÁÙʱ±íµÄÃû×Ö a kechengºÍb kecheng´ú±í²éѯ½á¹û¼¯ ÁÙʱ±í ÖжÔÓ¦µÄ×ֶΡ£²Ù×÷·½·¨ÈçÏ 1 ´ò¿ªsql server management studio£¬µã»÷н¨²éѯ£¬´´½¨Ò»¸ö²éѯ¡£ 2 ´´½¨Ò»¸öÁÙʱ±í£¬ÆäÖÐidÊÇ×ÔÔö×Ö...
Õâ¾ä»°µÄÒâÒåÊÇʲô,Õâ¾ä»°µÄÒâÒåÊÇʲô£¿ 5
1Â¥ ÄäÃûÓû§ Èç¹ûÓÐÈκÎÔÚ´ËÉú»îÊǿ϶¨µÄ£¬Èç¹ûÀúÊ·¸æËßÎÒÃÇʲô£¬ÄǾÍÊÇ£¬Äã¿ÉÒÔɱËÀÈκÎÈË¡£ 2Â¥ ¹Â¶ÀÇó°Ü Èç¹ûÉú»î¸æËßÁËÎÒÃÇʲô£¬ÀúÊ·½ÌÓýÁËÎÒÃÇʲô£¬ÄǾÍÊÇÄã¿ÉÒÔɱÁËÈκÎÈË£¡£¡£¡ ¼ûÄï³îÕâ¾ä»°µÃº¬ÒåÊÇʲô£¿ 3Â¥ sÇ×ÓÑÍÅ ¼ûÄï³î ÊÇÎÒÃÇÀϼҵÄË×Ó¾ÍÊÇ˵±¦±´ÔÚÆäËû¿´»¤È˵ĴøÁìÏ»á±È½Ï¹Ô ÀûË÷£¬...
oracleµÄsqlÓï¾äÖÐÁм¶Ô¼ÊøºÍ±í¼¶Ô¼ÊøµÄÇø±ð
1Â¥ ÄäÃûÓû§ Áм¶Ô¼ÊøÊÇÄãͨ¹ý Ö÷¼ü »òÕß ÆäËûµÄÔ¼Êø Õë¶ÔÒ»ÁеÄÌõ¼þ½øÐÐÔ¼Êø ÊÇ·ñ²åÈëÊý¾Ý Ðм¶Ô¼Êø ÀàËÆÄãÓô¥·¢Æ÷ ¶ÔÒ»¸ö±í µÄÊý¾ÝÊÇ·ñ¸üР×ö³öµÄÔ¼Êø oracleµÄ±í¼¶Ô¼ÊøºÍÁм¶Ô¼ÊøµÄÇø±ðÊÇʲô 2Â¥ µÎßÕ Áм¶Ô¼Êø ´ÓÐÎʽÉÏ¿´£¬ÔÚÿÁж¨ÒåÍêºóÂíÉ϶¨ÒåµÄÔ¼Êø£¬ÔÚ¶ººÅ֮ǰ¾Í¶¨ÒåºÃÁË¡£ car...