mssql Öн«ºº×Öת»»ÎªÆ´ÒôÊ××Öĸ·½·¨
1.
--½«ºº×Öת»»ÎªÆ´ÒôÊ××Öĸ
CREATE function GetAllPY(@str nvarchar(4000))
returns nvarchar(4000)
--WITH ENCRYPTION
as
begin
declare @intLen int
declare @strRet nvarchar(4000)
declare @temp nvarchar(100)
set @intLen = len(@str)
set @strRet = ''
while @intLen > 0
begin
set @temp = ''
select @temp = case
when substring(@str,@intLen,1) >= '帀' then 'Z'
when substring(@str,@intLen,1) >= 'Ѿ' then 'Y'
when substring(@str,@intLen,1) >= 'Ϧ' then 'X'
when substring(@str,@intLen,1) >= '屲' then 'W'
when substring(@str,@intLen,1) >= 'Ëû' then 'T'
when substring(@str,@intLen,1) >= 'Øí' then 'S'
when substring(@str,@intLen,1) >= '呥' then 'R'
when substring(@str,@intLen,1) >= 'Æß' then 'Q'
when substring(@str,@intLen,1) >= '妑' then 'P'
when substring(@str,@intLen,1) >= 'àÞ' then 'O'
when substring(@str,@intLen,1) >= '拏' then 'N'
when substring(@str,@intLen,1) >= '嘸' then 'M'
when substring(@str,@intLen,1) >= 'À¬' then 'L'
when substring(@str,@intLen,1) >= 'ßÇ' then 'K'
when substring(@str,@intLen,1) >= 'Ø¢' then 'J'
when substring(@str,@intLen,1) >= 'îþ' then 'H'
when substring(@str,@intLen,1) >= 'ê
Ïà¹ØÎĵµ£º
»ù±¾ÔÀí
FreeTDSΪLinuxϵͳÌṩÁËTDSÐÒéµÄ¿ªÔ´¿Í»§¶Ë¡£ÓÉÓÚMS SQLºÍSybaseʹÓõÄÇ¡ÊÇTDSÐÒ飬ËùÒÔÔÚLinuxÖпÉÒÔÓÃFreeTDSÁ¬½ÓMS SQL¡£
ÎÒÃÇ¿ÉÒÔÀûÓÃOpenOffice.Org Base¼°Linux ODBCʵÏÖ¿ÉÊÓ»¯µÄÊý¾Ý¿â²é¿´·½Ê½¡£·½±ã¸öÈËÓû§Ê¹ÓÃLinuxÔ¶³Ì¹ÜÀí×Ô¼ºµÄÊý¾Ý¿âϵͳ¡£
ÃüÁîÐз½Ê½Ê¹Ó÷½·¨¼ò½é
°²×°FreeTDSºÍsqsh
Ê×ÏȰ ......
½ñÌìÔÚÁÄÌìϵͳÖÐÐèҪϵͳִÐÐÒ»¸ö¶à²ãǶÌײéѯ¡£
Ò»¿ªÊ¼Óï¾äÈçÏÂ×ܳöÏÖ´íÎó£ºÔÀ´ÊÇÔÚ]='123') ºóÎÒ¶à¼ÓÁËÒ»¸ö as tb1
¸ÄΪÈçϺó£¬ÕýÈ·ÔËÐС£
select * from ( select top(10) * from ( select top(100) * from (select [chatcontent].[senderid],[chatcontent].[id] ,[chatcontent].[toid] ,[chatc ......
1.¶Ô²éѯ½øÐÐÓÅ»¯£¬Ó¦¾¡Á¿±ÜÃâÈ«±íɨÃ裬Ê×ÏÈÓ¦¿¼ÂÇÔÚ where ¼° order by Éæ¼°µÄÁÐÉϽ¨Á¢Ë÷Òý¡£
2.Ó¦¾¡Á¿±ÜÃâÔÚ where ×Ó¾äÖжÔ×ֶνøÐÐ null ÖµÅжϣ¬·ñÔò½«µ¼ÖÂÒýÇæ·ÅÆúʹÓÃË÷Òý¶ø½øÐÐÈ«±íɨÃ裬È磺
select id from t where num is null
¿ÉÒÔÔÚnumÉÏÉèÖÃĬÈÏÖµ0£¬È·±£±íÖÐnumÁÐûÓÐnullÖµ£¬È»ºóÕâÑù²éѯ£º
select id ......
´Ómssql6.5¿ªÊ¼£¬Î¢ÈíÌṩÁËÁ½¸ö²»¹«¿ª£¬·Ç³£ÓÐÓõÄϵͳ´æ´¢¹ý³Ìsp_MSforeachtableºÍsp_MSforeachdb£¬ÓÃÓÚ±éÀúij¸öÊý¾Ý¿âµÄÿ¸ö±íºÍ±éÀúDBMS¹ÜÀíϵÄÿ¸öÊý¾Ý¿â¡£
ÎÒÃÇÔÚmasterÊý¾Ý¿âÀïÖ´ÐÐÏÂÃæµÄÓï¾ä¿ÉÒÔ¿´µ½Á½¸öprocÏêϸµÄ´úÂë
use master
exec sp_helptext sp_MSforeachtable
exec sp_helptext sp_Msforeachdb
sp_M ......