DROP TABLE IF EXISTS `scoure`; CREATE TABLE `scoure` ( `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '选课表', `cno` varchar(11) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL COMMENT '课程号', `gradeName` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL COM...
SETNAMES utf8mb4;SETFOREIGN_KEY_CHECKS=0;-- --- Table structure for user-- ---DROPTABLEIFEXISTS`user`;CREATETABLE`user` ( `id`int(11)NOTNULLAUTO_INCREMENT COMMENT'主键ID', `name`varchar(60)CHARACTERSETutf8mb4COLLATEutf8mb4_general_ciNOTNULLCOMMENT'用户名', `password`varchar(64)CHARACT...
INSERT INTO `table_test_class` VALUES ('1', '一班'); 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. -- --- -- Table structure for `table_test_student` -- --- DROP TABLE IF EXISTS `table_test_student`; CREATE TABLE `table_test_student` ( `student_id` int(11) NO...
到目前为止,我正在使用 SQLAlchemy 通过engine.execute()方法执行原始 SQL: sql = text('DROP TABLE IF EXISTS my_users;') result = engine.execute(sql) 但是,我想知道是否有一些标准的方法可以这样做。我唯一能找到的是drop_all(),但它删除了所有结构,而不仅仅是一个特定的表: Base.metadata.drop_all(en...
SqlAlchemy already supports these operations on DropTable and CreateTable so this would essentially be a pass-through in a similar manner. Databases / Backends / Drivers targeted Postgresql Example Use Much like drop_index, I'd expect op.drop_table('foobar', if_exists=True) to produce DROP ...
fromsqlalchemyimportcreate_enginefromconstantsimportDB_URI#连接数据库engine= create_engine(DB_URI,echo=True)#使用with语句连接数据库,如果发生异常会被捕获with engine.connect() as con:#先删除users表con.execute('drop table if exists users')#创建一个users表,有自增长的id和namecon.execute('create tabl...
Added support for :paramref:`.Operations.create_table.if_not_exists` and :paramref:`.Operations.drop_table.if_exists`, adding similar functionality to render IF [NOT] EXISTS for table operations in a similar way as with indexes. Pull request courtesy Aaron Griffin. Fixes: #1520 Closes: #1521...
cursor.execute("DROP TABLE IF EXISTS EMPLOYEE")# 创建数据表SQL语句sql = """CREATE TABLE EMPLOYEE (FIRST_NAME CHAR(20) NOT NULL,LAST_NAME CHAR(20),AGE INT,SEX CHAR(1),INCOME FLOAT )"""cursor.execute(sql)# 关闭数据库连接db.close()...
execute('drop table if exists authors') # 创建一个users表,有自增长的id和name con.execute('create table authors(id int primary key auto_increment,'name varchar(25))') # 插入两条数据到表中 con.execute('insert into persons(name) values("abc")') con.execute('insert into persons(name) ...
...1.在mariadb中创billing的表及用户 mysql -uroot -pMARIADB_PWD <<EOF drop database if exists billing; create database...python的mysql工具包sqlalchemy(http://www.sqlalchemy.org),可以直接通过python语言来定义mysql库及表。 2.3K61 SqlAlchemy 2.0 中文文档(七十二)...