Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

SQLite²»Ö§³ÖµÄSQLÓï·¨×ܽá


1 TOP
ÕâÊÇÒ»¸ö´ó¼Ò¾­³£Îʵ½µÄÎÊÌ⣬ÀýÈçÔÚSQLSERVERÖпÉÒÔʹÓÃÈçÏÂÓï¾äÀ´È¡µÃ¼Ç¼¼¯ÖеÄÇ°Ê®Ìõ¼Ç¼£º
SELECT TOP 10 * from [index] ORDER BY indexid DESC;
µ«ÊÇÕâÌõSQLÓï¾äÔÚSQLiteÖÐÊÇÎÞ·¨Ö´Ðеģ¬Ó¦¸Ã¸ÄΪ£º
SELECT * from [index] ORDER BY indexid DESC limit 0,10;
ÆäÖÐlimit 0,10±íʾ´ÓµÚ0Ìõ¼Ç¼¿ªÊ¼£¬ÍùºóÒ»¹²¶ÁÈ¡10Ìõ
2 ´´½¨ÊÓͼ£¨Create View£©
SQLiteÔÚ´´½¨¶à±íÊÓͼµÄʱºòÓÐÒ»¸öBUG£¬ÎÊÌâÈçÏ£º
CREATE VIEW watch_single AS SELECT
DISTINCTwatch_item.[watchid],watch_item.[itemid] from watch_item;
ÉÏÃæÕâÌõSQLÓï¾äÖ´Ðкó»áÏÔʾ³É¹¦£¬µ«ÊÇʵ¼ÊÉϳýÁË
SELECT COUNT(*) from [watch_single ] WHERE watch_ single.watchid = 1;
ÄÜÖ´ÐÐÖ®ÍâÊÇÎÞ·¨Ö´ÐÐÆäËûÈκÎÓï¾äµÄ¡£ÆäÔ­ÒòÔÚÓÚ½¨Á¢ÊÓͼµÄʱºòÖ¸¶¨ÁË×Ö¶ÎËùÔڵıíÃû£¬¶øSQLite²¢²»ÄÜÕýÈ·µØʶ±ðËü¡£ËùÒÔÉÏÃæµÄ´´½¨Óï¾äÒª¸ÄΪ£º
CREATE VIEW watch_single AS SELECT DISTINCT [watchid],[itemid] from
watch_item;
µ«ÊÇËæÖ®¶øÀ´µÄÎÊÌâÊÇÈç¹ûÊǶà±íµÄÊÓͼ£¬ÇÒ±í¼äÓÐÖØÃû×ֶεÄʱºò¸ÃÔõô°ì£¿
3 COUNT£¨DISTINCT column£©
SQLiteÔÚÖ´ÐÐÈçÏÂÓï¾äµÄʱºò»á±¨´í£º
SELECT COUNT(DISTINCT watchid) from [watch_item] WHERE
watch_item.watchid = 1;
ÆäÔ­ÒòÊÇSQLiteµÄËùÓÐÄÚÖú¯Êý¶¼²»Ö§³ÖDISTINCTÏÞ¶¨£¬ËùÒÔÈç¹ûҪͳ¼Æ²»Öظ´µÄ¼Ç¼ÊýµÄʱºò»á³öÏÖһЩÂé·³¡£±È½Ï¿ÉÐеÄ×ö·¨ÊÇÏȽ¨Á¢Ò»¸ö²»ÖØ
¸´µÄ¼Ç¼±íµÄÊÓͼ£¬È»ºóÔÙ¶Ô¸ÃÊÓͼ½øÐмÆÊý¡£
4 ÍâÁ¬½Ó
ËäÈ»SQLite¹Ù·½ÒѾ­Éù³ÆLEFT OUTER JOIN ÒѾ­ÊµÏÖ£¬µ«»¹Ã»ÓÐ RIGHT OUTER JOIN ºÍ FULL OUTER
JOIN¡£µ«ÊÇʵ¼Ê²âÊÔ±íÃ÷Ëƺõ²¢²»Äܹ»Õý³£µÄ¹¤×÷¡£ÒÔÏÂÈýÌõÓï¾äÔÚÖ´ÐеÄʱºò¾ù»á±¨´í£º
SELECT tags.[tagid] from [tags],[tag_rss] WHERE tags.[tagid] =
tag_rss.[tagid](*);
SELECT tags.[tagid] from [tags],[tag_rss] WHERE LEFT OUTER JOIN
tag_rss.[tagid] = tags.[tagid];
SELECT tags.[tagid] from [tags],[tag_rss] WHERE LEFT JOIN
tag_rss.[tagid] = tags.[tagid];
´ËÍâ¾­¹ý²âÊÔÓÃ+ºÅ´úÌæ*ºÅÒ²ÊDz»¿ÉÐеġ£
ÊÕ¼¯SQLiteÓëSql ServerµÄÓï·¨²îÒì
1.·µ»Ø×îºó²åÈëµÄ±êʶֵ
·µ»Ø×îºó²åÈëµÄ±êʶֵsql serverÓÃ@@IDENTITY
sqliteÓñêÁ¿º¯ÊýLAST_INSERT_ROWID()
·µ»Øͨ¹ýµ±Ç°µÄ SQLConnection ²åÈëµ½Êý¾Ý¿âµÄ×îºóÒ»ÐеÄÐбêʶ·û£¨Éú³ÉµÄÖ÷¼ü£©¡£´ËÖµÓë
SQLConnection.lastInsertRowID ÊôÐÔ·µ»ØµÄÖµÏ


Ïà¹ØÎĵµ£º

¡¾SQL SERVER2005Ò³Ãæ´æ´¢3Ö® ¾Û¼¯Ë÷ÒýµÄ´æ´¢¡¿


                                                 &nbs ......

Sql Server»ù±¾º¯Êý

Ô­ÎĵØÖ·£ºhttp://www.programfan.com/article/2597.html
1.×Ö·û´®º¯Êý
³¤¶ÈÓë·ÖÎöÓÃ
datalength(Char_expr) ·µ»Ø×Ö·û´®°üº¬×Ö·ûÊý,µ«²»°üº¬ºóÃæµÄ¿Õ¸ñ
substring(expression,start,length) ²»¶à˵ÁË,È¡×Ó´®
right(char_expr,int_expr) ·µ»Ø×Ö·û´®ÓÒ±ßint_expr¸ö×Ö·û
×Ö·û²Ù×÷Àà
upper(char_expr) תΪ´óд
lower(c ......

SQLÈ¡ÈÕÆÚ

SQLÈ¡ÈÕÆÚ
SQL Server 2009-11-19 15:07:30 ÔĶÁ7 ÆÀÂÛ0 ×ֺţº´óÖÐС
·½·¨Ò»:
select CONVERT(varchar, getdate(), 120 )
2004-09-12 11:06:08
select replace(replace(replace(CONVERT(varchar, getdate(), 120 ),\'-\',\'\'),\' \',\'\'),\':\',\'\')
20040912110608
select CONVERT(varchar(12) , getdate( ......

Sql Serverµ¼³öÎı¾Îļþ

ÏÈ¿ªÆô·þÎñÆ÷ÅäÖÃÑ¡Ï
EXEC sp_configure 'show advanced options', 1
RECONFIGURE
EXEC sp_configure 'xp_cmdshell', 1
RECONFIGURE
/** µ¼³öÎı¾Îļþ 
EXEC master..xp_cmdshell 'bcp dbname..tablename out c:\DT.txt -c -S servername -U sa -P password' 
»ò 
EXEC master..xp_cmdshell ' ......

°²×°SQL Sever 2008ʱ ´íÎó´úÂë: 1605 µÄ½â¾ö·½·¨


TITLE: SQL Server °²×°³ÌÐòʧ°Ü¡£
------------------------------
SQL Server °²×°³ÌÐòÓöµ½ÒÔÏ´íÎó:
MsiGetProductInfo ÎÞ·¨¼ìË÷ Product Code Ϊ“{95120000-00B9-0409-0000-0000000FF1CE}”µÄ°üµÄ ProductVersion¡£´íÎó´úÂë: 1605¡£¡£
Óöµ½Õâ¸ö´íÎóʱ£¬½â¾ö·½·¨ÈçÏ£º
µ±ÏµÍ³ÌáʾÈç {95120000-0 ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ