SQL code:
declare @t varchar(5000)
set @t=''
select @t=@t+',[È¡Ïû·ÖÎö-'+quXiaoFenXi+']=sum(case when [quXiaoFenXi]='+quotename([quXiaoFenXi],'''')+' then shangPinZongShu else 0 end)'
from tb_gyyDingDan where zhuangtai =0 group by quXiaoFenXi
print(@t)
declare @s varchar(8000)
set @s=''
set ......
ÇóA != 1 and B != 2 ÒÔÍâµÄ¼Ç¼
a!=1 and b!=2 ÒÔÍ⣿
ÄÇÆñ²»ÊÇa=1»òÕßb=2µÄÕâÖÖÇé¿öô
select * from table where a = 1 or b = 2
Èç¹ûÊÇA != 1 and B != 2µÄ»°
select * from table where a <> 1 and b <> 2
where not(A!=1 and B!=2)
ÒýÓÃ
Èç¹ûÊÇA != 1 and B != 2µÄ»°
......
´ó¼Ò°ïæ¿´¿´Õâ2¸ösqlÓï¾äÄĸö²éѯµÄËٶȸü¿ìµã¡£Ð»Ð»°ïæ¡£±È½Ï׿±¡£ÔÚ×öÐÔÄܲâÊÔ¡£
select * from
±íA LEFT OUTER JOIN ±íB ON (±íA.id || ' ' =±íB.id) ,±íC , ±íD, ±íE
WhereÆäËûÌõ¼þ
select * from
±íA ,±íB ,±íC , ±íD, ±íE
Where ÆäËûÌõ¼þ and ±íA.id || ' ' =±íB.id
Èç¹û¸÷ÖÖÌõ¼þÊ ......
ÓÐÈçÏÂÁ½¸ö±í
tb1
col col1
abc 111
cde 111
qaz 222
tgb 222
tb2
col2 col3
abc 111
qaz 222
ÎÒÔõô²éѯTB1±íÄÄЩÊý¾ÝÔÚTB2±íÊÇûÓеÄ
select *&n ......
±í½á¹¹ Ϊ
id parentid name
1 0
2 0
3 1
4 3
5 2
ÊäÈë0ÏÖÔÚÏëµÃµ½
4 5
Ò²¾ÍÊÇ»ñȡҶ×ӽڵ㣬¸ÄÔõôʵÏÖ£¿ лл
http://blog.csdn.net/wufeng4552/archive/2009/09/30/4619995.aspx
ÎÒÒªµÄÊÇÒ¶×ӽڵ㣬¾ÍÊÇ×îµ×²ãµÄ½ ......
ÓÐÁ½ÌõSQLÓï¾ä£¨Ò»¸ö¿ªÊ¼Ò»¸ö½áÊø£©£¬ÎÒÏëÔÚ×ÀÃæÉÏÖ´ÐУ¬¹âÌý˵Ҫ×ö¸ö´°Ì廹ÊǿؼþµÄ£¬ÕâÔõô×ö£¿ÇóÀÏʦÃǰïæ£¬ÏÈлл£¡£¡£¡£¡
ʲôÒâ˼£¬Â¥Ö÷˵Çå³þЩ
...ÊÇѽ£¬ÏÈ˵Çå³þÂï
£¿
ÎÒµÄÒâ˼ÊÇ˵ÔÚ×ÀÃæÉÏ×ö¸ö°´Å¥£¬ÀïÃæÖ´ÐÐSQLÓï¾ä£¬Õâ¸ö°´Å¥Ôõô×ö£¿
isql -U Óû§Ãû -P ÃÜÂë -i c:\a.sq ......