怎么增加 auto_increment
test >create table users( -> id smallint unsigned primary key, -> username varchar(20) not null, -> age tinyint unsigned not null default 10, -> sex boolean); 忘记添加AUTO_INCREMENT自动编号,怎么添加进去
test >create table users( -> id smallint unsigned primary key, -> username varchar(20) not null, -> age tinyint unsigned not null default 10, -> sex boolean); 忘记添加AUTO_INCREMENT自动编号,怎么添加进去
2018-03-20
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