mysql²éѯÁ½ÌìµÄÊý¾ÝÔõôд

select * from table_test t where t.date_col >date_sub(NOW(), INTERVAL 2 DAY)Èç¹û±íÖÐÓÐ×Ö¶ÎÈçdate_colÀ´±íʾʱ¼ä£¬...


mysqlÈçºÎÈ¡µ±Ç°Ê±¼äµÄÇ°2ÌìºÍºó2Ìì

select curdate() + INTERVAL 2 DAY ; ok select curdate()+2; no


MySQLÔõô»ñȡÿ¼ä¸ôÁ½ÌìµÄÊý¾Ý

ͨ¹ý pt-query-digest --timeline ¹¦ÄÜ£¬¿ÉÒÔÊä³ö´øʱ¼ä´ÁµÄÂý²éѯÌõÄ¿ Óà sed ½« timeline ±¨¸æÂ˳ö °²×° te...


mysqlÈçºÎ²éÇ°Á½ÌìµÄÊý¾Ý?

//Èç¹ûÊý¾Ý±íÖÐÓдú±íÊäÈëʱ¼äµÄinsertdate×ֶΣ¬»ù±¾¿ÉÒÔʵÏÖ//Ê×ÏÈÈ¡µÃÇ°Á½ÌìµÄÈÕÆÚ£º$yesterday=date("Y-m-d H:i:s",strtot...


MySQLµÚ¶þÌìÔçÉϵÚÒ»´ÎÁ¬½Ó³¬Ê±±¨´í,½â¾ö·½·¨ - °Ù¶È¾­Ñé

·½·¨/²½Öè 1 ²é¿´wait_timeoutµÄĬÈÏÖµ£¬ÈçÏÂSQL£¬ÆäĬÈÏֵΪ28800£¬Ò²¾ÍÊÇ8Сʱmysql> show global ...


ΪʲômysqlÔÚÓÃcountʱ,Ö´ÐÐÁ½ÌìsqlÖ»ÏÔʾµÚÒ»ÌõsqlµÄ½á...

ÕâÊÇÁ½¸öcountµÄ³Ë»ý,ÒòΪÄã²éѯµÄÁ½¸ö±íûÓйØϵ,Êý¾Ý¿âÖ±½Ó¸ø³öµÄÊÇÅÅÁеĽá¹û


phpÓÃ±íµ¥Ìá½»µ½mysqlÊý¾Ý¿â,µ«ÊÇÊý¾Ý¿âÆæ¹ÖµÄ³öÏÖÁ½Ììһģ...

document.getElementById('ms').submit()" >Ìá½» È»ºó°Ñphpºó¶ËÕâ¾äÈ¥µô£ºmysql_query($sqlInsert);ÕâÑù¾Í¿ÉÒÔÁË ...


°¢ÀïÔÆ·þÎñÆ÷ mysql ×Üʱ¸ôÒ»Á½Ìì¾ÍÁ´½Ó²»ÉÏÁËÐèÒªÖØÆô²Å...

ÕâÊÇphpMyAdminµÄ±£»¤»úÖÆ£¬ÒªÖØеǼ¡£¶þ¡¢ÄãÓõÄÊDZ¾µØÊý¾Ý¿â»¹ÊÇÔ¶³ÌÊý¾Ý¿â£¬Èç¹ûÊÇÔ¶³ÌÊý¾Ý¿â£¬¿ÉÄÜÊÇÍøÂçÏß·ÎÊÌâ¡£½¨ÒéÄãʹÓÃ...


MySQL Ôõô²éѯʱ¼ä³¬¹ý2ÌìºóµÄÊý¾Ý

"DATEADD"º¯ÊýÔÚMySQLÀïÊÇ"DATE _ADD"º¯Êý£¬Ó¦¸ÃÕâÑùÓã¬Çë¿´ÏÂÃæÀý×Ó£ºselect * from mhxy_account where out_time between ...


mysql ɾ³ýÁ½ÌìÇ°µÄËùÓÐÊý¾Ý SQLÓï¾äÔõôд

delete from '±í'where datediff(curdate(), 'ÈÕÆÚ×Ö¶Î')>=2 ÇëÔÚ²âÊÔϵͳÉϲâÊÔºó£¬ÔÙ·ÅÈëÉú²ú»·¾³ÔËÐУ¬ÈçÓÐÒÉÎÊ£¬¼°Ê±¹µÍ¨!


Ïà¹ØËÑË÷

ÈÈÃÅËÑË÷