sql update Ó÷¨
½«b±íÖÐcallerÁеÄÖµ²åÈëa±íÖÐcallÁÐÖС£
create table a
(
fid int,
call varchar(20),
age int
)
create table b
(
fid int,
caller varchar(20),
parentId int
)
select * from a
select * from b
insert into a values(1,null,19)
insert into a values(2,null,20)
insert into b values(1,'a',1)
insert into b values(2,'b',2)
update a set call =b.caller from b inner join a on a.fid = b.parentId
Ïà¹ØÎĵµ£º
SQL code
¶¯Ì¬sqlÓï¾ä»ù±¾Óï·¨
1 :ÆÕͨSQLÓï¾ä¿ÉÒÔÓÃExecÖ´ÐÐ
eg: Select * from tableName
Exec('select * from tableName')
Exec sp_executesql N'select * from tableName' -- Çë×¢Òâ×Ö·û´®Ç°Ò»¶¨Òª¼ÓN
2:×Ö¶ÎÃû£¬±íÃû£¬Êý¾Ý¿âÃûÖ®Àà×÷Ϊ±äÁ¿Ê±£¬±ØÐëÓö¯Ì¬SQL
eg:
declare @ ......
ÒòÏÖÔڵŤ×÷ÐèÒª£¬
ÎҵôÓWinFormµÄƽ̨£¬
תÐ͵½WebFormµÄÒ³Ãæ¡£
ÓÐÒ»Äê¶àûÓнӴ¥SQL ServerÁË£¬
ËäÈ»´óѧʱÓеã»ù´¡£¬
µ«Ò²Íü¼ÇµÃ²î²»¶àÁË¡£
ÒòΪAsp.netÐ͵ÄB/SÍøÕ¾ºÍWinFormµÄ»¹ÊÇÓе㲻ͬ£¬
ÏÖÔÚ¹¤×÷ÆðÀ´²»ÊÇÄÇôµÃÐÄÓ¦ÊÖ¡£
ιʶøÖªÐ£¬
¾Í°ÑÒÔǰʵϰʱ×öµÄµÄÍøÕ¾Ô´´úÂëÄóöÀ´¿´¿´¡£
ÒòΪҪÓõ½SQL 2005S ......
1£¬SqlServer´æ´¢¹ý³ÌµÄÊÂÎñ´¦Àí
Ò»ÖֱȽÏͨÓõijö´í´¦ÀíµÄģʽ´ó¸ÅÈçÏ£º
Create procdure prInsertProducts
(
@intProductId int,
@chvProductName varchar(30),
@intProductCount int
)
AS
Declare @intErrorCode int
Select @intErrorCode=@@Error
Begin transaction
if @intError ......
¡¾ÏÈ˼¿¼Ò»¸öÎÊÌ⣺Áû×ÓºÍϹ×ÓÔÚÒ»Æð»áÓÐʲô½á¹û£¿¡¿
×òÌìд³ÌÐò£¬ÓиöСģ¿éÊÇͨ¹ý·ÖÎöÊýÊ®ÍòÌõ¼Ç¼£¬ÓëÒì¹¹µÄÊý¾Ý±í½øÐбȶԣ¬ÕÒ³ö·ûºÏÌõ¼þµÄÐÅÏ¢¡£
ÔÚµÚÒ»Ìõ²éѯÖУ¬ÐèÒª²éѯËùÓмǼµÄÒ»¸ö×ֶΣ¬²¢ÌáÈ¡¸Ã×Ö¶ÎÖеĵÚ5ÖÁµÚ10¸ö×Ö·û´®£¬ÒªÓëÒì¹¹Êý¾Ý±í±È½ÏµÄ¾ÍÊÇÕâ¸ö×Ö´®¡£ÔÚ×î³õµÄ°æ±¾ÖУ¬¶ÔÓÚÐÔÄܲ¢Ã»ÓÐ×ö¸ü¶àµÄ¿¼Â ......