how to create function in postgresql

PostgreSQL Advantage2016-10-20 21:36 686 People read comments (0) favorite reports Classification:MySQL Database (5)PostgreSQL is a free object-relational database server (database management system), which is very powerful. Includes support for

PostgreSQL is an open-source SQL database that supports standard SQL and allows users to connect to PostgreSQL via the JDBC driver for application development. The user extends the PostgreSQL function, allowing the developer to access the SEQUOIADB

The Linux release version is Ubuntu server 6.06, And the Ubuntu version is only 8.1. To be an early adopter, 8.2.0 has improved the compatibility based on the Windows platform to facilitate the conversion of the platform. At the same time, you can

Comparison between PostgreSQL and MySQL Features MySQL PostgreSQL Instance Run the MySQL Command (mysqld) to start the instance. One instance can manage one or more databases. One server can run multiple mysqld instances.

Wiki. openbravo. comwikiERP2.50Developers _ GuideConceptsDBPL-SQL_code_rules_to_write_Oracle_and_Postgresql_codeProcedureLanguagerulesOpenbravoERPsupportsOracleandPostgreSQLdatabaseengines.Thisisasetofrecommendat Http://wiki.openbravo.com/wiki/ERP/2.

PostgreSQL 9.5.1 official document Study Notes This document is applicable to the latest version of PostgreSQL 9.5.1. I am new to PostgreSQL and may not miss this article. please correct me. With more understanding, this article [may] will be

After a lot of groping experiments I finally succeeded in achieving the SSL certificate authentication function, so I think this time I want to record these steps for future reference. For security and convenience reasons, I want to sign a client's

MySQL vs. PostgreSQL MysqlRelatively young, appearing for the first 1994 years. It claims to be the most popular open source database. MySQL is the M in the lamp (for web development packages, including Linux, Apache, and Perl/php/python). Most

From: http://bbs.chinaunix.net/thread-1688208-1-1.html Features MySQL PostgreSQL Instance Run the MySQL Command (mysqld) to start the instance. One instance can manage one or more databases. One server can run

The target of PostgreSQL is very similar to that of the current MySQL database. So what are the advantages of PostgreSQL? This article will be explained to you. This article introduces the basic concepts of PostgreSQL's transaction processing