SQl Cookbookѧϰ±Ê¼Ç
1.select * from A where a.a='a';
Ö´ÐÐ˳Ðò ÏÈÖ´ÐÐ from ÔÚÖ´ÐÐ where ÖеĶ«Î÷ £¬×îºóÖ´ÐÐ select
2.ÁÐÖµÁ¬½Ó db2 oracle || , mysql concat(column1,'sss',column2) sqlServlerʹÓÃ+Á¬½Ó;
3. case when ±í´ïʽ then ''
when ±í´ïʽ then ''
else ''
end
4. ÏÞÖÆ·µ»ØµÄÐÐÊý
ÔÚoracleÖÐʹÓÃrownum <= n ÏÞÖÆÐÐÊý
ÔÚdb2ÖÐʹÓÃfetch first 5 rows only
×¢Òâ oracleÖÐÈç¹ûʹÓÃrownum =5 Êǵò»µ½µÚÎåÐеģ¬ÒòΪoracleµÄ²éѯÔÀí»ñȡһÐк󸳸øÐкţ¬Èç¹ûÐкÅÂú×ãÌõ¼þ·µ»Ø·ñÔòÉáÆú£¬ÕâÑùÓÀÔ¶µÃ²»µ½µÚÎåÐУ¬ÓÀÔ¶ÊǵÚÒ»ÐкŲ¢½ÓÉáÆú£¬ËùÒÔÒªÏëµÃµ½µÚÎåÐУ¬±ØÐëµÃµ½Ç°ËÄÐУ¬ËùÒÔ²éѯǰÎåÐбØÐëÊÇ<= 5;
5.null ÒªÏëÅжÏÖµÊÇ·ñΪnull±ØÐëΪ is null £¬ null²»ÄÜÓõÈÓÚ=ºÍ²»µÈÓÚ<> ºÍÈκÎÖµ±È½Ï°üÀ¨null
6¡£°´Ä£Ê½²éѯ like '%a'
Ïà¹ØÎĵµ£º
Õý³£µÇ½sql*plusµÄ²½ÖèÈçÏ£º
sbdatabase*orcl-/home/oracle>sqlplus /nolog
SQL*Plus: Release 10.2.0.3.0 - Production on Sun May 9 19:50:24 2010
Copyright (c) 1982, 2006, Oracle. All Rights Reserved.
SQL> conn hmsimis/test@orcl
Connected.
SQL>
¿ÉÒÔ¿´µ½Ç°ÃæµÄÌáʾ·ûÊÇSQL£¬ÏÖÔÚÏëÐ ......
UltraLite®J£ºBlackBerryÉÏÔËÐеÄСÊý¾Ý¿âºÍͬ²½ÒýÇæ
MobiLink £ºÔËÐÐÔÚ·þÎñÆ÷ÉÏÊý¾Ý¿âͬ²½·þÎñÆ÷£¬¿ÉÒÔ°ÑÉ豸ÉϵÄÊý¾Ýͬ²½µ½ºǫ́µÄ¡£°üº¬ÔÚSQL Anywhere 11ÀïÃæ¡£
SQL Anywhere ÊÇÒµÄÚÁìÏȵÄÒÆ¶¯ºÍǶÈëʽÊý¾Ý¿â£¬ÌṩÊý¾Ý¹ÜÀíºÍ½»»»¼¼Êõ£¬ÎªÒ»Ïß»·¾³ÖеÄÓ¦ÓóÌÐòÌṩ֧³Ö¡£
SQL Anywhere רΪ²»¾ß±¸ÏÖ³¡ IT Ö§³Ö¡¢Ô ......
Ëø»úÖÆ
NOLOCKºÍREADPASTµÄÇø±ð¡£
1. ¿ªÆôÒ»¸öÊÂÎñÖ´ÐвåÈëÊý¾ÝµÄ²Ù×÷¡£
BEGIN TRAN t
INSERT INTO Customer
SELECT 'a','a'
2. Ö´ÐÐÒ»Ìõ²éѯÓï¾ä¡£
SELECT * from Customer WITH (NOLOCK)
½á¹ûÖÐÏÔʾ"a"ºÍ"a"¡£µ±1ÖÐÊÂÎñ»Ø¹öºó£¬ÄÇôa½«³ÉΪÔàÊý¾Ý¡£(×¢:1ÖеÄÊÂÎñδÌá½») ¡£NOLOCK±íÃ÷ûÓжÔÊý¾Ý±íÌí¼Ó¹²Ï ......
[code=SQL][/code]
--Óï ¾ä ¹¦ ÄÜ
--Êý¾Ý²Ù×÷
SELECT --´ÓÊý¾Ý¿â±íÖмìË÷Êý¾ÝÐкÍÁÐ
INSERT --ÏòÊý¾Ý¿â±íÌí¼ÓÐÂÊý¾ÝÐÐ
DELETE --´ÓÊý¾Ý¿â±íÖÐɾ³ýÊý¾ÝÐÐ
UPDATE --¸üÐÂÊý¾Ý¿â±íÖеÄÊý¾Ý
--Êý¾Ý¶¨Òå
CREATE TABLE --´´½¨Ò»¸öÊý¾Ý¿â±í
DROP TABLE --´ÓÊý¾Ý ......
Microsoft SQL Server 2005 JDBC Driver
1.1
¿ìËÙÃèÊö
ÏÂÔØ Microsoft SQL Server
2005 JDBC Driver 1.1£¬ÕâÊÇÒ»ÖÖ Type 4 JDBC Çý¶¯³ÌÐò£¬¿Éͨ¹ý J2EE£¨Java2 ÆóÒµ°æ£©Öеıê×¼ JDBC
Ó¦ÓóÌÐò±à³Ì½Ó¿Ú (API) ÌṩÊý¾Ý¿âÁ´½Ó¡£
±¾Ò³ÄÚÈÝ
¿ì
ËÙÏêϸÐÅÏ¢
¸Å
Êö
ϵ
ͳҪÇó
˵
Ã÷
Ïà
¹Ø×ÊÔ´
Æä
ËûÓû§ÕýÔÚ ......