case when then...else end sql Óï¾äÓ÷¨
select f.AGENTID as 'ID',
f.AGENTNAME as 'ÐÕÃû',
f.COMNAME as '¹«Ë¾¼ò³Æ',
c.REGISTDATE as '×¢²áʱ¼ä',
c.VALIDDATE as '½ØÖÁʱ¼ä',
c.DISTRICT as 'ÇøÏØ',
c.COMAREA as '¸ºÔðÇøÓò',
c.category as 'µÈ¼¶',
case when c.agentcardflag = 1 then '´ýÉóºË'
when c.agentcardflag = 2 then 'ÉóºËͨ¹ý'
when c.agentcardflag = 3 then 'δͨ¹ý'
else 'δͨ¹ý'
end as 'Éí·ÝÉóºË״̬'
from MagentInf f ,MagentCon c where c.AGENTID = f.AGENTID and c.Ispay = 0
ÏÂÃæÎª×ªÔØ
SELECT
CASE WHEN USERID=10 THEN 'ÉçÇøÓû§£º'+SELECT NAME from(SELECT NAME from USER_INFO UI WHERE UI.[ID]=A.USERID)
WHEN USERID=20 THEN '×¢²áÓû§£º'+SELECT NAME from(SELECT NAME from REGISTER_INFO UI WHERE UI.[ID]=A.USERID)
WHEN UERID=30 THEN 'ÆÕͨÓû§£º'+SELECT NAME from(SELECT NAME from SIMPLE_INFO UI WHERE UI.[ID]=A.USERID)
--.....»¹Óкü¸¸öWHEN
ELSE '' END,
A.TITLE,A.TETENT
from BASICINFO A
Ïà¹ØÎĵµ£º
ÏÂÃæÊÇÎÒ×ܽá³öÀ´µÄÒ»¸öÊý¾Ý¿â·ÃÎʹ«¹²À࣬»ùÓÚADO.NET£¬C#µÄ£¬ÆäÖУ¬ÒÔÖØÔØµÄ·½Ê½ÊµÏÖʹÓôæÊô¹ý³ÌµÄ½Ó¿ÚºÍ²»Óô洢¹ý³ÌµÄ½Ó¿Ú£¬ÈçÓв»Í×Çë´ó¼ÒÖ¸Õý£¬Ð»Ð»~
×÷Õߣºshinehoo
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
namespace shineh ......
--²éѯӦÓóÌÐòµÄµÈ´ý
SELECT TOP 10
wait_type,waiting_tasks_count AS tasks,
wait_time_ms,max_wait_time_ms AS max_wait,
signal_wait_time_ms AS signal
from sys.dm_os_wait_stats
ORDER BY wait_time_ms DESC
--²éѯÔÚÈÎһʱ¿ÌËùÓÐÊÚȨ¸øµ±Ç°Ö´ÐÐÊÂÎñ»òµ±Ç°Ö´ÐÐÊÂÎñµÈ´ýµÄËø
SELECT
request_session_id A ......
½ñÌì½Óµ½¿Í»§µç»°£¬Ëµ²Ù×÷Êý¾ÝÎÞ·¨±£´æ¡£¾¹ý·ÖÎö£¬·¢ÏÖËûµÄÊý¾Ý¿âÒѾÓÐ5G¶àµÄ´óС£¬¶ø×îÖÕ·¢ÏÖÓÐÕűíµÄË÷Òý³ö´íÁË£¬ÓÃDBCC CHECKÒ²ÎÞÁ¦»ØÌì¡£
ÿ´ÎÓÃselect * from ln003082 Óï¾ä²éѯ£¬¶¼±¨ÈçÏ´íÎó£º
·þÎñÆ÷: ÏûÏ¢ 605£¬¼¶±ð 21£¬×´Ì¬ 1£¬ÐÐ 1
ÊÔͼ´ÓÊý¾Ý¿â 'ln_fl0125' ÖÐÌáÈ¡µÄÂß¼ ......
select ÐÕÃû,סַ,ÆÚ³õÓà¶î=isnull(ÆÚ³õÔö¼Ó,0)-isnull(ÆÚ³õ¼õÉÙ,0),±¾ÆÚÔö¼Ó,±¾ÆÚ¼õÉÙ,
±¾ÆÚ½áÓà=(isnull(ÆÚ³õÔö¼Ó,0)-isnull(ÆÚ³õ¼õÉÙ,0)+isnull(±¾ÆÚÔö¼Ó,0)-isnull(±¾ÆÚ¼õÉÙ,0)) from (
select ÐÕÃû,סַ,
ÆÚ³õÔö¼Ó=(select ÆÚ³õÔö¼Ó=sum(Ôö¼Ó»ý·Ö) from b where ·¢ÉúÈÕÆÚ<'2006-5-1' and ¿¨ºÅ=a.¿¨ºÅ),
ÆÚ³õ¼õÉ ......
BackupEveryDay
ÿÌì½øÐÐÊý¾Ý¿âµÄ²îÒ챸·Ý
day
Declare @File Varchar(2000)
Set @File='E:\Databasebackup\njyc_data_diff.BAK'
Backup database njyc_data to Disk=@File with DIFFERENTIAL
WeekBackup
ÿÖܽøÐÐÒ»´ÎÊý¾Ý¿âµÄÍêÈ«±¸·Ý£¬±¸·ÝÎļþÃûΪµ±ÌìÈÕÆÚ £¨njyc_data_Äê_ÔÂ_ÈÕ£©
BackupAll
DECLARE @BackupFi ......