×ðÁú¿­Ê±

mysqlÖвéÕÒ±í½á¹¹µÄÏÂÁîÊÇʲô

Òª²éÕÒ mysql ±íµÄ½á¹¹£¬¿ÉÒÔʹÓà describe ÏÂÁºó¸úÒª¼ì²éµÄ±íÃû¡£Êä³ö½«ÌṩÓйرíÖÐÿ¸öÁеÄÏêϸÐÅÏ¢£¬°üÀ¨Ãû³Æ¡¢Êý¾ÝÀàÐÍ¡¢¿É¿ÕÐÔ¡¢¼üÔ¼ÊøºÍĬÈÏÖµ¡£

MySQL ²éÕÒ±í½á¹¹µÄÏÂÁî

Òª²éÕÒ MySQL ±íµÄ½á¹¹£¬¿ÉÒÔʹÓÃÒÔÏÂÏÂÁ

DESCRIBE table_name;

µÇ¼ºó¸´ÖÆ

ÆäÖÐ table_name ÊÇÄúÒª¼ì²éÆä½á¹¹µÄ±íµÄÃû³Æ¡£

Êä³ö˵Ã÷

´ËÏÂÁî»á·µ»ØÒ»¸öЧ¹û¼¯£¬ÆäÖаüÀ¨ÓйرíÖÐÿ¸öÁеÄÒÔÏÂÐÅÏ¢£º

Field: ÁеÄÃû³Æ

Type: ÁеÄÊý¾ÝÀàÐÍ

Null: Ö¸¶¨ÁÐÊÇ·ñÔÊÐí¿ÕÖµ

Key: Ö¸¶¨ÁÐÊÇ·ñÊÇÖ÷¼ü¡¢Íâ¼ü»òΨһ¼ü

Default: ÁеÄĬÈÏÖµ

Extra: ÆäËûÐÅÏ¢£¬ÀýÈç×Ô¶¯µÝÔöÁÐ

ʾÀý

¼ÙÉèÄúÓÐÒ»¸öÃûΪ customers µÄ±í£¬Æä½á¹¹ÈçÏ£º

CREATE TABLE customers (
  id INT NOT NULL AUTO_INCREMENT,
  name VARCHAR(255) NOT NULL,
  email VARCHAR(255) UNIQUE,
  phone_number VARCHAR(20)
);

µÇ¼ºó¸´ÖÆ

ʹÓà DESCRIBE ÏÂÁîÅÌÎÊ customers ±íµÄ½á¹¹£¬Äú½«»ñµÃÒÔÏÂÊä³ö£º

Field       Type       Null    Key     Default  Extra
id          int         NO      PRI     NULL     auto_increment
name        varchar(255)  NO      MUL     NULL     
email       varchar(255)  NO      UNI     NULL     
phone_number varchar(20)  YES     MUL     NULL     

µÇ¼ºó¸´ÖÆ

´ËÊä³öÏÔʾ£º

±íÖÐÓÐËĸöÁУºid¡¢name¡¢email ºÍ phone_number¡£

id ÁÐÊÇÖ÷¼ü£¬×Ô¶¯µÝÔö¡£

name ºÍ email Áв»ÔÊÐí¿ÕÖµ¡£

email ÁоßÓÐΨһ¼üÔ¼Êø¡£

phone_number ÁÐÔÊÐí¿ÕÖµ¡£

ÒÔÉϾÍÊÇmysqlÖвéÕÒ±í½á¹¹µÄÏÂÁîÊÇʲôµÄÏêϸÄÚÈÝ£¬¸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¡¿