存储过程(Stored Procedures)存储过程是一组预先编译的 SQL 语句,存储在数据库中,并可以通过名称进行调用和执行。它们通常用于执行一系列的数据库操作,比如数据插入、更新、删除等,以完成特定的任务或业务逻辑。存储过程可以接受参数,并且可以返回结果集或输出参数。 在PostgreSQL 中,可以使用 PL/pgSQL 语言编写存储过程。
A stored procedure is a set of structured queries and statements such as control statements and declarations. Here are ten examples of stored procedures that can be useful in different situations. 1. Inserting data using a procedure procedure_demo=# CREATE OR REPLACE PROCEDURE genre_insert_data("...
PostgreSQL11: 支持存储过程(SQL Stored Procedures) PostgreSQL 11 版本一个重量级新特性是对存储过程的支持,同时支持存储过程嵌入事务,存储过程是很多 PostgreSQL 从业者期待已久的特性,尤其是很多从Oracle转到PostgreSQL朋友,尽管PostgreSQL提供函数可以实现大多数存储过程的功能,但在函数中无法执行事务实现部分提交,换句话说...
Until PostgreSQL version 11, both stored procedures and user-defined functions were created with the CREATE FUNCTION statement. However, beginning with PostgreSQL version 11, procedures can be created using the CREATE PROCEDURE statement. Moreover, as an added advantage, you will now be abl...
Summary in this tutorial, you will learn how to call stored procedures in PostgreSQL in PHP using PDO. Calling a stored procedure that returns one value Let’s create a simple stored procedure named ad...
PostgreSQL Stored ProceduresLearn how to store SQL functions in your CARTO database.What is a stored procedure?PostgreSQL allows you to extend the database functionality with user-defined functions by using various procedural languages, which are often referred to as stored procedures....
Summary: in this tutorial, you will learn how to call PostgreSQL stored procedures from a Python program. This tutorial picks up from where theCall PostgreSQL Functions Tutorialleft off. Steps for calling a PostgreSQL stored procedure in Python ...
This PostgreSQL stored procedures section shows you step by step how to develop PostgreSQL user-defined functions using PL/pgSQL procedural language. PostgreSQL Triggers This section provides you with PostgreSQL trigger concept and shows how to manage triggers in PostgreSQL. ...
schema里面包含了各种对象如tables, views, sequences, stored procedures, synonyms, indexes, clusters, and database links。 一个用户一般对应一个schema,该用户的schema名等于用户名,并作为该用户缺省schema。这也就是我们在企业管理器的方案下看 到schema名都为数据库用户名的原因。而Oracle数据库中不能新创建一...
PostgreSQL is recognized for its remarkable flexibility and extensibility, which allows users to customize the database to meet their requirements. It supports a wide range of data types, including custom user-created ones, and offers multiple procedural languages for writing stored procedures. This ve...