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use tempdb
go
if (object_id ('t1' ) is not null ) drop table t1
if (object_id ('t2' ) is not null ) drop table t2
go
create table t1 (a int )
insert into t1 select 1 union select 2 union select 3
create table t2 (a int )
insert into t2 select 3 union select 4 union select 5
go
select * from t1 union select * from t2
go
/* Çó±í²¢¼¯
1
2
3
4
5*/
select * from t1 union all   select * from t2
go
/*Çó±í²¢¼¯²»¹ýÂËÖØ¸´
1
2
3
3
4
5*/
select * from t1 except select * from t2
go
/*Çót1¶Ôt2µÄ²î¼¯
1
2*/
select * from t1 intersect select * from t2
go
/*Çót1¶Ôt2µÄ½»¼¯
3*/
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if (object_id ('t_bulkResult' ) is   not   null )
drop table t_bulkResult ......

18¾ä»°ÈëÃÅSQLServer XML


/*
sql xml ÈëÃÅ:
    --by jinjazz
    --http://blog.csdn.net/jinjazz
   
    1¡¢xml:        ÄÜÈÏÊ¶ÔªËØ¡¢ÊôÐÔºÍÖµ
   
    2¡¢xpath:    ѰַÓïÑÔ£¬ ......

sqlserverÖÐÅжϱíÊÇ·ñ´æÔÚ

ÔÚsqlserver(Ó¦¸Ã˵ÔÚĿǰËùÓÐÊý¾Ý¿â²úÆ·)Öд´½¨Ò»¸ö×ÊÔ´Èç±í£¬ÊÓͼ£¬´æ´¢¹ý³ÌÖж¼ÒªÅжÏÓë´´½¨µÄ×ÊÔ´ÊÇ·ñÒѾ­´æÔÚ
ÔÚsqlserverÖÐÒ»°ã¿Éͨ¹ý²éѯsys.objectsϵͳ±íÀ´µÃÖª½á¹û£¬²»¹ý¿ÉÒÔÓиü·½±ãµÄ·½·¨
ÈçÏ£º
    if   object_id('tb_table') is not null 
     ......

SQLServerϵͳ´æ´¢¹ý³Ì

sp_databases --Áгö·þÎñÆ÷ÉϵÄËùÓÐÊý¾Ý¿â
sp_server_info --Áгö·þÎñÆ÷ÐÅÏ¢£¬Èç×Ö·û¼¯£¬°æ±¾ºÍÅÅÁÐ˳Ðò
sp_stored_procedures--Áгöµ±Ç°»·¾³ÖеÄËùÓд洢¹ý³Ì
sp_tables --Áгöµ±Ç°»·¾³ÖÐËùÓпÉÒÔ²éѯµÄ¶ÔÏó
sp_start_job --Á¢¼´Æô¶¯×Ô¶¯»¯ÈÎÎñ
sp_stop_job --Í£Ö¹ÕýÔÚÖ´ÐеÄ×Ô¶¯»¯ÈÎÎñ
sp_password --Ìí¼Ó»òÐ ......
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