database MySQLSida loo koobiyeeyo qaab dhismeedka miiska?Nuqul ka nuqul xogta macluumaadka miiska
MySQLKoobi miiska
Haddii aan u baahanahay inaan si buuxda u nuqulo miiska xogta MySQL, oo ay ku jiraan qaabka shaxda, tusmooyinka, qiyamka caadiga ah, iwm.Haddii kaliya la isticmaaloAbuur Miisaska ... DOOLamarku waa wax aan macquul ahayn.
Cutubkani waxa uu soo bandhigi doonaa sida gabi ahaanba loo koobi karo shaxda xogta MySQL, tillaabooyinka waa sida soo socota:
- 使用SHOW Miisaska Abuuramar ku samee samee xogtaSHAXDA ISUUR) bayaan, oo ka kooban qaabka, tusmada, iwm. ee shaxda xogta asalka ah.
- Nuqul ka samee bayaanka SQL ee uu soo bandhigay amarkan soo socda, wax ka beddel magaca shaxda xogta, oo dhaqan geli bayaanka SQL. Qaab dhismeedka shaxda xogta waxa gebi ahaanba la koobiyi doonaa amarka sare.
- Haddii aad rabto in aad nuqul ka sameysid nuxurka miiska, waad isticmaali kartaaGELI… DOOL hadal si loo gaaro.
tusaale
Isku day tusaalahan soo socda si aad ugu celceliso shaxda chenweiliang_tbl.
tallaabada koowaad:
Hel qaabka dhamaystiran ee shaxda xogta.
mysql > SHOW CREATE TABLE chenweiliang_tbl \ G ; *************************** 1. row ******************** ******* Table :chenweiliang_tbl Create Table :CREATE TABLE`chenweiliang_tbl` (`chenweiliang_id` int (11 )NOT NULL auto_increment ,`chenweiliang_title` varchar (100 )NOT NULL default '' ,'chenweiliang_author` varchar (40 )NOT NULL 默认'' , `submission_date` 日期默认NULL , PRIMARY KEY (`chenweiliang_id` ), UNIQUE KEY `AUTHOR_INDEX` (`chenweiliang_author` ))ENGINE = InnoDB的1 行中集合(0.00 秒) 错误:没有指定查询
Tallaabada labaad:
Wax ka beddel magaca miiska xogta ee bayaanka SQL oo fuli bayaanka SQL.
mysql > CREATE TABLE`clone_tbl` (- > `chenweiliang_id` int (11 )NOT NULL auto_increment ,- > `chenweiliang_title` varchar (100 )NOT NULL default '' ,- > `chenweiliang_author` varchar (40 )NOT NULL default '' ,- > `submission_date` 日期默认为NULL ,- > PRIMARY KEY (`chenweiliang_id` ),- > UNIQUE KEY `AUTHOR_INDEX` (`chenweiliang_author` )- > )ENGINE = InnoDB ; 查询OK ,0 行受影响(1.80 秒)
Tallaabada saddexaad:
Ka dib markaad sameyso tillaabada labaad, waxaad ku abuuri doontaa miisaska clone clone_tbl database-ka.Haddii aad rabto in aad nuqul ka sameyso xogta shaxda xogta waxaad isticmaali kartaaGELI… DOOL hadal si loo gaaro.
mysql > INSERT INTO clone_tbl (chenweiliang_id ,- > chenweiliang_title ,- > chenweiliang_author ,- > submission_date )- > SELECT chenweiliang_id ,chenweiliang_title ,- > chenweiliang_author ,submission_date - > FROM chenweiliang_tbl ; 查询OK ,3 行受影响(0.07 秒)记录:3 重复:0 警告:0
Kadib markaad sameyso tillaabooyinka kore, waxaad heli doontaa koobi buuxa oo miiska ah, oo ay ku jiraan qaab dhismeedka miiska iyo xogta miiska.
Hab kale oo loo koobi karo miiska
Siyaabo kale oo si buuxda loogu koobi karo shaxda:
CREATE TABLE targetTable LIKE sourceTable ; INSERT INTO targetTable SELECT * FROM sourceTable ;
kale:
Waxaad ku koobi kartaa qaar ka mid ah meelahan shaxda:
CREATE TABLE newadmin AS ( SELECT用户名,密码从管理员 )
Waxaad dib u magacaabi kartaa beeraha miiska cusub ee la sameeyay:
CREATE TABLE newadmin AS ( SELECT id ,username AS uname ,password AS pass FROM admin )
Qayb ka mid ah xogta waa la koobiyn karaa:
CREATE TABLE newadmin AS ( SELECT * FROM admin WHERE LEFT (username ,1 )= 's' )
Macluumaadka goobta ee shaxda waxa lagu qeexi karaa marka la samaynayo shaxda:
CREATE TABLE newadmin ( id INTEGER NOT NULL AUTO_INCREMENT PRIMARY KEY ) 如 ( SELECT * FROM admin )
Hope Chen Weiliang Blog ( https://www.chenweiliang.com/ ) la wadaagay "Sidee loogu soo koobayaa qaab dhismeedka miiska MySQL database?Nuqul ka samee Bayaanka Xogta Shaxda" si ay kuu caawiyaan.
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