mysql左連接、右連接和內(nèi)連接_MySQL
來(lái)源:懂視網(wǎng)
責(zé)編:小采
時(shí)間:2020-11-09 19:05:41
mysql左連接、右連接和內(nèi)連接_MySQL
mysql左連接、右連接和內(nèi)連接_MySQL:bitsCN.com 腳本如下: drop table table1; CREATE TABLE `andrew`.`table1` ( `name` VARCHAR(32) NOT NULL, `city` VARCHAR(32) NOT NULL ) ENGINE = MyISAM; insert into TABLE1(name, city) v
導(dǎo)讀mysql左連接、右連接和內(nèi)連接_MySQL:bitsCN.com 腳本如下: drop table table1; CREATE TABLE `andrew`.`table1` ( `name` VARCHAR(32) NOT NULL, `city` VARCHAR(32) NOT NULL ) ENGINE = MyISAM; insert into TABLE1(name, city) v

bitsCN.com
腳本如下:
drop table table1;
CREATE TABLE `andrew`.`table1`
(
`name` VARCHAR(32) NOT NULL,
`city` VARCHAR(32) NOT NULL
)
ENGINE = MyISAM;
insert into TABLE1(name, city) values ('Person A', 'BJ');
insert into TABLE1(name, city) values ('Person B', 'BJ');
insert into TABLE1(name, city) values ('Person C', 'SH');
insert into TABLE1(name, city) values ('Person D', 'SZ');
commit;
drop table table2;
CREATE TABLE `andrew`.`table2`
(
`name` VARCHAR(32) NOT NULL,
`city` VARCHAR(32) NOT NULL
)
ENGINE = MyISAM;
insert into TABLE2(name, city) values ('Person W', 'BJ');
insert into TABLE2(name, city) values ('Person X', 'SH');
insert into TABLE2(name, city) values ('Person Y', 'SH');
insert into TABLE2(name, city) values ('Person Z', 'NJ');
commit;
1. 外連接
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mysql左連接、右連接和內(nèi)連接_MySQL
mysql左連接、右連接和內(nèi)連接_MySQL:bitsCN.com 腳本如下: drop table table1; CREATE TABLE `andrew`.`table1` ( `name` VARCHAR(32) NOT NULL, `city` VARCHAR(32) NOT NULL ) ENGINE = MyISAM; insert into TABLE1(name, city) v