postgre insert

I. PrefaceIn the past, because the table design was complex (multiple tables have direct master-slave relationships with tables), this was determined by the business logic. The insertion efficiency is simply intolerable and must be optimized. After

First, the prefaceThe previous system because the table design is more complex (many tables, tables and tables directly with the master-slave relationship), this is the business logic decision. Insertion efficiency is simply unbearable and must be

Tragedy...FIREDAC connection Postgre database, using default properties, when executing multiple SQL at a time, will be reported "cannot insert multiple commands into a prepared statement" errorTo the online check (Baidu), what information can not

Https://github.com/angelfan/DayDayUp/blob/5aed5c7c43132a5bf2f2f1766dab045544c8f870/note/transaction_ Isolation.md#%e4%ba%8b%e5%8a%a1%e9%9a%94%e7%a6%bbTransaction isolation There are two ways to implement MVCC: 1. When writing new data,

Because of work needs, in the new project need to use PostgreSQL-8.1.5; although previously configured, but this configuration but found that the new version and the original has a lot of different places. I will not discuss the differences here. I

To tell the truth, my LAMP site, in fact, can not forget this elephant. MySQL is a brisk dolphin, but lacks many of the characteristics of modern relational databases, such as referential integrity, views, triggers, and so on. So if you need to

In Oracle, dblink is often used to import some online data to the development database to locate the problem. Dblink can also be used in PostgreSQL. The following is an online document: 1. How to Create dblink in PostgreSQL?2. How do I use dblink

Postgres is gaining more and more attention Postgre s is gaining more and more attention. Open Database systems such as Postgre s are in conflict with large, expensive, and irregular "enterprise-level" systems, such as SQL Server and Oracle, to

Yesterday, I used the pygresql module in the article "Python: Operating PostgreSQL databases (using pygresql)" to perform operations on PostgreSQL databases, today, we use another common Python database access interface dB api2.0 to perform the same

This article mainly introduces how to use PyGreSQL to operate PostgreSQL databases in Python. If you need it, refer to PostgreSQL, which is a powerful open-source relational database, this article uses python to implement common operations on the