# 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) values("xiaotuo")') # 执行查询操作 result...
<insert id="insert2" useGeneratedKeys="true" keyProperty="id"> insert into sys_user( user_name, user_password, <if test="userEmail!=null and userEmail!=''"> user_email, </if> user_info, head_img, create_time) VALUES (#{userName}, #{userPassword}, <if test="userEmail!=null and...
Stringfromsqlalchemyimportengine# declarative_base: 声明基类, Base 就是 ORM 模型Base = declarative_base()# 当前的Object继承了Base也就是代表了Object继承了ORM的模型classUser(Base):# 相当于 Django Models中的 Model# 设置表名__tablename__ ='users'# 创建ID字段 == 创建ID数据列, 字段 = Column(...
session.execute(User.__table__.insert().prefix_with('IGNORE'),{'id':1,'name':'1'}) 如何替换一个已有主键的记录? 使用session.merge() 方法替代 session.add(),其实就是 SELECT + UPDATE: user=User(id=1,name='ooxx') session.merge(user) session.commit() 或者使用 MySQL 的 INSERT … ON ...
最简单的方案是直接扩展Session类get_bind方法 get_bind(mapper=None, clause=None) Return a “bind” to which this Session is bound. Note that the “mapper” argument is usually present when Session.get_bind() is called via an ORM operation such as a Session.query(), each individual INSERT/...
id INT AUTO_INCREMENT PRIMARY KEY, name varchar(64), age int, gender varchar(8), job varchar(64) ); insert into humans(name, age, gender, job) values ('tom', 25, 'male', 'teacher'), ('jerry', 35, 'male', 'astronaut'), ...
id) # 返回BaseQuery, 别名使用 label blog.csdn.net/weixin_44 8)执行sql 如果对sql比较熟悉,可以直接执行sql,如下: from base import db sql = "select * from dbuser where username = 'Li'" for res in db.session.execute(sql): print(res) sql = """ insert into dbuser (username, email)...
可以使用函数 insert_sentinel() 构建这种 Column 样式: from sqlalchemy import Column from sqlalchemy import Integer from sqlalchemy import String from sqlalchemy import Table from sqlalchemy import Uuid from sqlalchemy import insert_sentinel Table( "some_table", metadata, Column("id", Integer, ...
WHERE id = %s"db.execute(query,(user_id,))result=db.fetchall()ifresult:return{"user_id": result[0][0],"username": result[0][1]}else:return{"error":"User not found"}@app.get("/user_name/{user_name}")async def insert_user(user_name: str,db:cursor.MySQLCursor=Depends(get_db...
call(), init(), add(), add_all(), autoflush, begin(), begin_nested(), bind, bulk_insert_mappings(), bulk_save_objects(), bulk_update_mappings(), close(), close_all(), commit(), configure(), connection(), delete(), deleted, dirty, execute(), expire(), expire_all(), expunge...