Column('username',String(15),nullable=False,unique=True),Column('email_address',String(255),nullable=False),Column('phone',String(20),nullable=False),Column('password',String(25),nullable=False),Column('created_on',DateTime(),default=datetime.now),Column('updated_on',DateTime(),default=datet...
engine=create_engine('sqlite:///path/to/database.db') 1. 这样,我们就成功创建了一个SQLite数据库引擎。 create_engine函数的额外配置选项 除了数据库URL之外,create_engine函数还支持一些额外的配置选项,以满足更复杂的需求。 以下是一些常用的配置选项: echo:用于指定是否打印SQL语句的执行日志,默认为False。
app.config['SQLALCHEMY_DATABASE_URI'] ='sqlite:///matchglass.db'#app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDERdb = SQLAlchemy(app) eng = db.create_engine("sqlite:///matchglass.db") db.drop_all() db.create_all() app.debug =TrueclassMatchglass(db.Model):id = db.Column(db.Integer,...
第一步是创建数据库引擎实例: fromsqlalchemyimportcreate_engine engine = create_engine('sqlite:///:memory:', echo=True,# echo=True 表示打印出自动生成的 SQL 语句(通过 logging)pool_size=5,# 连接池容量,默认为 5,生产环境下太小,需要修改。# 下面是 connection 回收的时间限制,默认 -1 不回收pool_...
engine =create_engine(url)exceptImportError, e: driver = url.drivername installed =Falseifdriver =='sqlite':raiseModuleError(self,"Python was built without sqlite3 support")elif(driver =='mysql'ordriver =='drizzle'):# drizzle is a variant of MySQLinstalled = install({'pip':'mysql-python'...
engine=create_engine('mysql://user:password@localhost:3306/test?charset=utf8mb4',echo=False,pool_size=100,pool_recycle=3600,pool_pre_ping=True) echo :为 True 时候会把sql语句打印出来,当然,你可以通过配置logger来控制输出,这里不做讨论。
from sqlalchemy import create_engine eng = create_engine("sqlite:///:memory:", echo=True) conn = eng.connect() conn.execute("create table x (a integer, b integer)") conn.execute("insert into x (a, b) values (1, 1)") conn.execute("insert into x (a, b) values (2, 2)") ...
>>> get_session(False, True) #doctest: +ELLIPSIS <sqlalchemy.orm.session.Session object at 0x...> >>> get_session(False, False) #doctest: +ELLIPSIS <sqlalchemy.orm.session.Session object at 0x...> """ if test: engine = create_engine('sqlite:///:memory:', echo=verbose) log_...
%global ovirt_create_user_engine \ %_ovirt_create_user %{engine_user} %{engine_uid} %{engine_group} %{engine_gid} "%%{ovirt_user_description}" %{engine_state} %global ovirt_create_user_vdsm \ %_ovirt_create_user %{vdsm_user} %{vdsm_uid} %{vdsm_group} %{vdsm_gid} "%%...
(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":87,"key_label":0,"unicode":119,"echo":false,"script":...