2025-11-05 04:11:34分类:应用开发阅读(35998) 
复制use test_db1; create table test_ta1( id mediumint(8) unsigned not nulll auto_increment,置当值
createtime datetime, primary key (id) )engine=innodb default charset=gbk; alert table test_ta1 change createtime createtime timestamp not null default now(); 1.2.3.4.5.6.7.8.9.10.11.12.13.14.