SQL²åÈëÓï¾ä£¨INSERT INTO £©
INSERT INTO
tableName ( columnName1, columnName2, columnName3, columnName4)
VALUES ( '45', 'Î÷²Ø°ì', TO_Date( '2010-03-10 12:00:00', 'YYYY-MM-DD HH24:MI:SS'), NULL,);
commit;
Ïà¹ØÎĵµ£º
ʹÓÃsqlÓï¾ä»ñµÃµ±Ç°ÔÂÌìÊý
--»ñµÃµ±ÔÂÌìÊý
select day(dateadd(mm,1,getdate())-day(getdate())) as ±¾ÔÂÌìÊý ;
select getdate() as µ±Ç°ÈÕÆÚ;
&nb ......
²Ù×÷ϵͳµÄÖ§³Ö °æ±¾ºÍ·¢Ðаæ ʵÀý¡¢Êý¾Ý¿âºÍ±í¿Õ¼ä ʵÀýÃûºÍSID ϵͳÊý¾Ý¿âºÍϵͳ±í¿Õ¼ä
Ò»°ãµÄ¹«Ë¾Í¨³£»áÔÚËûÃǵÄÐÅϢϵͳ¼Ü¹¹ÖÐÒýÈë¶àÖÖÊý¾Ý¿âƽ̨£¬Í¬Ê±ÒýÈëÈýµ½ËÄÖÖ²»Í¬µÄRDBMS½â¾ö·½°¸µÄÖдóÐ͹«Ë¾Ò²²¢²»ÉÙ¼û£¬µ±È»ÕâЩ¹«Ë¾ÀïÃæµÄDBAÃÇͨ³£Ò²ÐèҪͬʱӵÓйÜÀí¶àÖÖ²»Í¬Æ½Ì¨µÄ¼¼ÄÜÁË¡£
Ö»ÔÚÒ»ÖÖÆ½Ì¨ÉÏÕ¹¿ª¹¤×÷µÄÊý¾Ý ......
Æô¶¯ÓëÅäÖòÎÊý ¸ü¸ÄϵͳԪÊý¾ÝºÍ²ÎÊýÅäÖà ¶¯Ì¬ÊÓͼ ´æ´¢µÄÎïÀíºÍÂß¼½á¹¹ Æô¶¯ºÍ¹Ø±Õ
topÆô¶¯ÓëÅäÖòÎÊý
ÔÚSQL Server°²×°µÄʱºò£¬Í¬Ê±Ò²»áÍùWindows×¢²á±íÀïÃæÌí¼ÓһЩ¼Ç¼£¬ÕâЩע²á±í¼üÖµÖ¸¶¨ÁËʵÀýËùÐèÒªµÄ¸÷ÖÖ²ÎÊý¡£±ÈÈ磬ÓеÄ×¢²á±í¼üÖµÖ¸¶¨ÁË´íÎóÈÕÖ¾µÄ±£´æÄ¿Â¼£¬ÁíÍâµÄÖ¸¶¨ÁËĬÈϵı¸·ÝĿ¼µÈµÈ¡£SQL ServerÔÚÔ ......
ʹÓà ESCAPE ¹Ø¼ü×Ö¶¨ÒåתÒå·û¡£ ÔÚģʽÖУ¬µ±×ªÒå·ûÖÃÓÚͨÅä·û֮ǰʱ£¬¸ÃͨÅä·û¾Í½âÊÍΪÆÕͨ×Ö·û¡£ÀýÈ磬ҪËÑË÷ÔÚÈÎÒâλÖðüº¬×Ö·û´® 5% µÄ×Ö·û´®£¬ÇëʹÓ㺠WHERE ColumnA LIKE '%5/%%' ESCAPE '/'
2.ESCAPE 'escape_character' ÔÊÐíÔÚ×Ö·û´®ÖÐËÑË÷ͨÅä·û¶ø²»Êǽ«Æä×÷ΪͨÅä·ûʹÓᣠescape_character ÊÇ·ÅÔÚͨÅä·ûǰ±í ......
ÐÐÁе¹ÖÃÔÚsql serverÖÐÊÇÒ»Öֺܳ£¼ûµÄ¼¼ÇÉ£¬ÔÚ×öÓ¦ÓÃϵͳµÄʱºò£¬¾³£ÐèÒª×öһЩͳ¼Æ¹¦ÄܱÜÃâ²»ÁËʹÓÃÐÐÁе¹ÖÃÕâ¸ö¼¼ÇÉ£¬ÎÒССµÄ×öÁËÒ»ÏÂ×ܽ᣺
µÚÒ»ÖÖ£ºsql server 2000ÖÐʹÓÃcase½øÐÐÐÐÁе¹ÖÃ
create table RowCellConvertTest
(
grade varchar(50),
sex varchar(50),
studentCount int
)
......