student_id integer not null auto_increment, role_id integer, department_id integer, university_id integer, student_sn varchar(20), pwd varchar(20), name varchar(10), sex varchar(1), major varchar(50), grade varchar(20), class varchar(50), phone varchar(11), primary key (student_id) ...
PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8; -- Step 2 插入数据(直接拷贝至test_04251019) INSERT INTO test_04251019_key(id,name,addr,memo) SELECT id,name,addr,memo FROM test_04251019; COMMIT; -- Step 3 新增个唯一字段id_2并更新数据 ALTER TABLE test_04251019...
tabModel->setSort(tabModel->fieldIndex("id"),Qt::AscendingOrder); // 排序 if (!(tabModel->select())) // 查询数据 { return; } // 设置字段名称 tabModel->setHeaderData(tabModel->fieldIndex("id"),Qt::Horizontal,"Uid"); tabModel->setHeaderData(tabModel->fieldIndex("name"),Qt::Hor...
JYColumnConstraintKeyAutoIncrement -> autoincrement 需要注意的是,JYColumnConstraintKeyDefault 需要配合 JYColumnConstraintKeyDefaultValue 使用,设置一个默认值。 举个例子: @interfaceStudent:JYSqlModel<JYSqlModel>@property(nonatomic,assign)NSInteger fid;@property(nonatomic,copy)NSString*name;@property(nonatomic...
我正在尝试使用alembic将'id‘主键列添加到已存在的MySQL表中。我尝试了以下几种方法。must be defined as a key') 'ALTER TABLE mytable CHANGE id id INTEGER NOT NULL AUTO_INCREMENT' () 看起来alembic生成的sql语句没有在alter语句的末尾添加PRIMARY KEY。 浏览1提问于2012-12-07得票数 10 回答已采纳 ...
(db.Integer,primary_key=True,autoincrement=True)name=db.Column(db.String(64))classClassB(db.Model):__tablename__="classb"id=db.Column(db.Integer,primary_key=True,autoincrement=True)name=db.Column(db.String(64))classas=db.relationship('ClassA',secondary=a2b,backref=db.backref('classb',...
CREATE TABLE `teaching_trains` ( `train_id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'id', `name` varchar(40) NOT NULL DEFAULT '' COMMENT '名称', `user_id` int(11) NOT NULL COMMENT '创建人ID', `created` datetime NOT NULL COMMENT '创建时间', `update_user_id` int(11) DEFAULT NU...
SELECT id,t_id,f_condition,update_time,s_name,_id FROM ABC WHERE (s_id = 'A007') 数据库结构 CREATE TABLEabc( idint(11) NOT NULL AUTO_INCREMENT, s_idvarchar(50) DEFAULT NULL , s_namevarchar(200) DEFAULT NULL , f_conditionvarchar(500) DEFAULT NULL , ...
`level_id` integer NOT NULL, `parent_id` integer, `sequence` integer NOT NULL ) ; CREATE TABLE `wechat_autoreply` ( `id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `wechat_id` integer NOT NULL, `replay_type` integer NOT NULL, ...
__tablename__='server'id= Column(Integer, primary_key=True, autoincrement=True) hostname= Column(String(64), unique=True, nullable=False) def init_db():"""根据类创建数据库表 :return:"""engine =create_engine("mysql+pymysql://root:123456@47.93.252.50:3306/userinfo?charset=utf8", ...