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

mysql source µ¼Èëµ¼³öÊý¾ÝΪÂÒÂë

Ò»¡¢µ¼ÈëÊý¾Ý
1¡¢È·¶¨
Êý¾Ý¿âĬÈϱàÂ룬±ÈÈç±àÂë
Ϊgbk,½«¶ÁÈë;¾¶±àÂëͬÑùÉèΪgbk£¬ÃüÁîΪ£º
           set names gbk;
2¡¢source
d:/20080613.sql µ¼ÈëÊý¾Ý¡£ÑéÖ¤
Êý¾Ý¿â
ÖеÄÊý¾ÝÊÇ·ñ´æÔÚÂÒÂë¡£
3¡¢Èç¹ûÈÔÈ»´æÔÚÂÒÂëÎÊÌ⣬Õâʱºò¾ÍÒª¿¼ÂǸı䵼ÈëÎļþµÄ±àÂ룬ÊÔ×Å
µ¼È룬ֱÖÁûÓÐÂÒÂë³öÏÖ¡£
      ÍøÒ³Êý¾Ý´æÈëÂÒÂëÎÊÌâÒÀÕÕÒÔÉÏ·½·¨Í¬Ñù¿ÉÒÔ½â¾ö¡£¿É½«ÍøÒ³±àÂë¸ÄΪÓë
Êý¾Ý¿â
ÏàͬµÄ±àÂë¡£ÎÊÌâ×Ô
È»½â¾ö¡£
¶þ¡¢µ¼³öÊý¾Ý
mysqldump -u root -p --default-character-set=Êý¾Ý±àÂë Êý¾Ý¿âÃû³Æ> file.sql
¶¨Òå±àÂëµ¼³ö
mysqldump -u root -p --default-character-set=utf8 discuss_chi>
dis.sql
¶¨Òå±àÂëµ¼Èë
mysql -u root -p --default-character-set=utf8 -f discuss_chi<dis.sql
È绹ÊÇÂÒÂëʹÓöþ½øµ¼Èë
mysql -u root -p --default-character-set=binary -f
discuss_chi<dis.sql
»¹ÊDz»ÐУ¬µ¼³öºÍµ¼È붼ʹÓöþ½ø·½Ê½
µ¼³ö
mysqldump -u root -p --default-character-set=binary discuss_chi>
dis.sql
µ¼Èë
mysql -u root -p --default-character-set=binary -f
discuss_chi<dis.sql


Ïà¹ØÎĵµ£º

MysqlµÄ×Ö·û´®º¯Êý

Ç°×¢£º¶ÔÓÚÕë¶Ô×Ö·û´®Î»ÖõIJÙ×÷£¬µÚÒ»¸öλÖñ»±ê¼ÇΪ1¡£
ASCII(str) ·µ»Ø×Ö·û´®strµÄ×î×óÃæ×Ö·ûµÄASCII´úÂëÖµ¡£Èç¹ûstrÊÇ¿Õ×Ö·û´®£¬·µ»Ø0¡£Èç¹ûstrÊÇNULL£¬·µ»ØNULL¡£
mysql> select ASCII('2');
-> 50
mysql> select ASCII(2);
-> 50
mysql> select ASCII('dx');
-> 1 ......

PostgreSQLÓëMySQLÁ½´ó¿ªÔ´Êý¾Ý¿âÂÛ¸ßÏÂ


µ±Ì¸µ½¿ªÔ´Êý¾Ý¿âʱ£¬MySQL»ñ
µÃÁËÒµ½ç´ó²¿·ÖµÄ×¢ÒâÁ¦£¬MySQLÊÇÒ»¸öÒ×ÓÚʹÓõÄÊý¾Ý¿â£¬Í¬Ê±ÓÐÐí¶à¿ªÔ´µÄWebÓ¦ÓóÌÐò¶¼ÊÇÖ±½ÓÔÚËüÉÏÃ濪·¢µÄ¡£
ÁíÍâÒ»ÖÖÖ÷ÒªµÄ¿ªÔ´Êý¾Ý¿âÊÇPostgreSQL£¬ËäÈ»ËüÒ²ÊÇÖÚËùÖÜÖªµÄ£¬µ«ÊÇȴûÓлñµÃÏñMySQLËùµÃµ½µÄÈÏ¿É¡£ÕâÊǺܲ»Ðҵģ¬ÒòΪÔÚÕâÁ½Õß
ÖУ¬Ïà±ÈMySQL£¬PostgreSQLÄÜÌṩ¸ü¼Ó°²È ......

¹ØÓÚMySQL ORDER BY

ÓÉÓÚϵͳÐèÒª£¬Ð´ÁËÒ»¸öORDER BY µÄSQL²éѯÓï¾ä½øÐÐ×Ö¶ÎÅÅÐò£¬²éѯ½á¹ûûÓнøÐÐÅÅÐò£¬SQLÓï·¨ÕýÈ·£»
ÓÚÊÇ£¬½øÈëMySQL¿ØÖÆ̨£¬Ö´ÐÐSQLÓï¾ä£¬Ã»Óб¨´í£¬µ«ÊǾÍÊÇûÓÐÅÅÐò£»
¾­¹ý²éÕÒ·¢ÏÖ£¬ÔÚд ORDER BY ' time' DESC  Óï¾äÖУ¬Ê¹ÓÃÁË“ ' ”·ûºÅ£¬µ¼ÖÂMySQLÎÞ·¨Õý³£½âÎö£¬È¥µôÅÅÐòÕý³££»
»òÕß¿ÉÒÔÓÃ &ldqu ......

Hibernate + MYSQL½áºÏ´æ´¢ Blob ºÍ ClobÄÚÈÝ

      ½ñÌ죬ÕÛÌÚÁËÒ»¸öÏÂÎ磬ÖÕÓÚ½â¾öÁËHibernate ´æ´¢Blob×Ö¶Îʱ£¬Êý¾ÝÁ¿·Ç³£´óʱ×ÜÊDZ¨ can not update jdbc batchµÄ´íÎóÁË£¬Ô­À´ÊÇMySQLÖÐûÓÐÉ趨×î´óÔÊÐíÖµËùÖ£¬ÎÒ»¹ÒÔΪÊÇHibernate²Ù×÷²»·ûºÏ±ê×¼²ÅÕâÑù¡£¡£¡£ºÇºÇ£¬ÔÚMysql 5.1ÖеÄmy.iniÅäÖÃÎļþÖмÓÈëÈçÏÂÉèÖãº
[MYSQL]
max_allowed ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ