×ðÁú¿­Ê±

mysqlÖÐall anyµÄÓ÷¨

mysql ÖÐµÄ all ºÍ any ÔËËã·ûÓÃÓÚ½ÏÁ¿ÜöÝÍÊÇ·ñÖª×ãÌض¨Ìõ¼þ ¡£all ¼ì²éËùÓÐÔªËØÊÇ·ñ¶¼Öª×㣬¶ø any Ö»ÐèÒªÓÐÒ»¸öÔªËØÖª×ã¼´¿É ¡£

MySQL ÖÐµÄ ALL ºÍ ANY

ALL ºÍ ANY ÊÇ MySQL ÖеÄÜöÝÍÔËËã·û£¬ÓÃÓÚ½ÏÁ¿Á½¸ö»ò¶à¸öÜöÝÍÊÇ·ñÖª×ãÌض¨Ìõ¼þ ¡£

ALL

ALL ÔËËã·û¼ì²é¸ø¶¨ÜöÝÍÖеÄËùÓÐÔªËØÊÇ·ñ¶¼Öª×ã×ÓÅÌÎÊ·µ»ØµÄЧ¹û ¡£Óï·¨ÈçÏ£º

SELECT * FROM table1
WHERE condition ALL (SELECT condition FROM table2);

µÇ¼ºó¸´ÖÆ

ÈôÊÇ×ÓÅÌÎʹØÓÚ table1 ÖеÄÿÌõ¼Í¼¶¼·µ»ØÕ棬Ôò·µ»Ø¸Ã¼Í¼ ¡ £»»¾ä»°Ëµ£¬ÈôÊÇËùÓÐÔªËض¼Öª×ã×ÓÅÌÎÊÌõ¼þ£¬Ôò·µ»Ø true ¡£

Àý£º

SELECT * FROM students
WHERE city ALL (SELECT city FROM states WHERE country = 'USA');

µÇ¼ºó¸´ÖÆ

Õ⽫·µ»ØËùÓÐÆÜÉíÔÚÃÀ¹úµÄËùÓÐÖݵÄѧÉú¼Í¼ ¡£

ANY

ANY ÔËËã·û¼ì²é¸ø¶¨ÜöÝÍÖеÄÈκÎÔªËØÊÇ·ñÖª×ã×ÓÅÌÎÊ·µ»ØµÄЧ¹û ¡£Óï·¨ÈçÏ£º

SELECT * FROM table1
WHERE condition ANY (SELECT condition FROM table2);

µÇ¼ºó¸´ÖÆ

ÈôÊÇ×ÓÅÌÎÊÖÁÉÙ¹ØÓÚ table1 ÖеÄÒ»Ìõ¼Í¼·µ»ØÕ棬Ôò·µ»Ø¸Ã¼Í¼ ¡ £»»¾ä»°Ëµ£¬ÈôÊÇÈκÎÔªËØÖª×ã×ÓÅÌÎÊÌõ¼þ£¬Ôò·µ»Ø true ¡£

Àý£º

SELECT * FROM employees
WHERE salary ANY (SELECT salary FROM managers WHERE department = 'Sales');

µÇ¼ºó¸´ÖÆ

Õ⽫·µ»ØËùÓÐÈËΪÓëÈκÎÏúÊÛ²¿·Ö˾ÀíÈËΪÏàͬµÄÔ±¹¤¼Í¼ ¡£

ÒÔÉϾÍÊÇmysqlÖÐall anyµÄÓ÷¨µÄÏêϸÄÚÈÝ£¬¸ü¶àÇë¹Ø×¢±¾ÍøÄÚÆäËüÏà¹ØÎÄÕ£¡

ÃâÔð˵Ã÷£ºÒÔÉÏչʾÄÚÈÝȪԴÓÚÏàÖúýÌå¡¢ÆóÒµ»ú¹¹¡¢ÍøÓÑÌṩ»òÍøÂçÍøÂçÕûÀí£¬°æȨÕùÒéÓë±¾Õ¾Î޹أ¬ÎÄÕÂÉæ¼°¿´·¨Óë¿´·¨²»´ú±í×ðÁú¿­Ê±ÂËÓÍ»úÍø¹Ù·½Ì¬¶È£¬Çë¶ÁÕß½ö×ö²Î¿¼ ¡£±¾ÎĽӴýתÔØ£¬×ªÔØÇë˵Ã÷À´ÓÉ ¡£ÈôÄúÒÔΪ±¾ÎÄÇÖÕ¼ÁËÄúµÄ°æȨÐÅÏ¢£¬»òÄú·¢Ã÷¸ÃÄÚÈÝÓÐÈκÎÉæ¼°ÓÐÎ¥¹«µÂ¡¢Ã°·¸Ö´·¨µÈÎ¥·¨ÐÅÏ¢£¬ÇëÄúÁ¬Ã¦ÁªÏµ×ðÁú¿­Ê±ÊµÊ±ÐÞÕý»òɾ³ý ¡£

Ïà¹ØÐÂÎÅ

ÁªÏµ×ðÁú¿­Ê±

18523999891

¿É΢ÐÅÔÚÏß×Éѯ

ÊÂÇéʱ¼ä£ºÖÜÒ»ÖÁÖÜÎ壬9:30-18:30£¬½ÚãåÈÕÐÝÏ¢

QR code
¡¾ÍøÕ¾µØͼ¡¿¡¾sitemap¡¿