PostgreSQL的备份工具可以使用pg_dump及pg_dumpall。可以通过pg_dump --help获取其使用方法。这里不对其做过多介绍。主要介绍在使用pg_dump及恢复过程中遇到的一个问题。 1、问题 使用pg_dump -c导出后,通过psql导入时报下面的错误: 代码语言:javascript 代码运行次数:0 ERROR:relation"t1"already existsERROR:duplic...
简介:PG备份恢复:multiple primary keys for table "t1" are not allowed 数据库导入导出是最常用的功能之一。PostgreSQL的备份工具可以使用pg_dump及pg_dumpall。可以通过pg_dump --help获取其使用方法。这里不对其做过多介绍。主要介绍在使用pg_dump及恢复过程中遇到的一个问题。 1、问题 使用pg_dump -c导出后...
For example, the changeset with ID STASHDEV-6754-4b, which contains a statement to drop the primary key on the 'key_name' and 'namespace' columns from the 'plugin_setting' table, is specified for the DBMS "postgresql" and therefore is not executed in the EDB Postgres database. Because ...
PostgreSQL can use multiple fields as Primary Key (doc) but how to handle that with Exposed DAO ? I tried to use the DAO with a table which is quite complexe. Because example is better than words. Here the SQL : CREATE TABLE table__contacts_first ( contact_id UUID NOT NULL, app_id...
DATABASES = { 'default': { 'NAME': 'app_data', 'ENGINE': 'django.db.backends.postgresql', 'USER': 'postgres_user', 'PASSWORD': 's3krit' }, 'users': { 'NAME': 'user_data', 'ENGINE': 'django.db.backends.mysql', 'USER': 'mysql_user', 'PASSWORD': 'priv4te' } } If the...
Main Database: NocoBase main database, supporting relational databases such as MySQL, PostgreSQL, SQLite, etc. External MySQL Data Source: Access an existing MySQL database as a data source. External MariaDB Data Source: Access an existing MariaDB database as a data source. ...
Connecting PostgreSql to C# windows forms Connecting to Remote Server (Linux) from .NET application(C#) to run a UNIX script hosted on linux server Connecting to remote server outlook.office365.com failed with the following error message : Access is denied. Connection refused if I use 127.0.0.1...
SQLALCHEMY_DATABASE_URI="postgresql:///main"SQLALCHEMY_BINDS={"meta":"sqlite:///path/to/meta.db","auth":{"url":"mysql://localhost/users","pool_recycle":3600,},} Defining Models and Tables with Binds¶ Flask-SQLAlchemy will create a metadata and engine for each configured bind. Mode...
I think we should have a very quick device to indicate this for tables, etc. and it would just have to be all over the docs: Table('t',metadata,Column('id',Integer,primary_key=True),Column("data",String(50)),insert_sentinel() ) ...
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