SELECT * FROM accounts; 输出:
CREATE PROCEDURE The first thing to notice here is that there is a COMMIT inside the procedure. In classical PostgreSQL functions this is not possible for a simple reason. Consider the following code: 1 SELECT func(id) FROM large_table; What would happen if some function call simply commits...
Creating a stored procedure for a specific task has many advantages, including extending the functionality of your Azure for PostgreSQL database. Use a stored procedure when you want to:Develop and test complex code in one place, then call it where needed. Execute code eff...
AnalyticDB PostgreSQL 7.0 支持存储过程(CREATE PROCEDURE)特性 简介:AnalyticDB PostgreSQL 7.0 新增了存储过程功能的支持,让用户在使用ADB PG时能够更方便高效地开发业务,并能够更好地兼容Oracle等传统数仓的业务。 背景 在ADB PG6中,函数(Function)可以实现大部分的存储过程功能(SQL stored procedures),我们通常建议用...
In general, a function is a set of SQL statements that carried out any operation, such as select, insert delete, and update. There are two types of functions in PostgreSQL "system-defined functions" and "user-defined functions". In this article, we discuss the user-defined function. Syntax...
Call a Stored Procedure using C# Call PostgreSQL Functions using C# Connect to PostgreSQL using C# Create Tables using C# Delete Data from a Table using C# Import Data from CSV using C# Insert Data Into Tables using C# Select Data in a Table using C# PostgreSQL Transactions in C#...
In PostgreSQL, the “CREATE” command can be executed with the “VIEW” keyword tocreate a view, as demonstrated in the following syntax: CREATE VIEW name_of_view AS select_query; Here, -“CREATE VIEW” is a command that creates a new virtual table. ...
For more information about dollar quoting, see "Dollar-quoted String Constants" under Lexical Structure in the PostgreSQL documentation. procedure_body A set of valid PL/pgSQL statements. PL/pgSQL statements augment SQL commands with procedural constructs, including looping and conditional expressions,...
PostgreSQL 代码语言:txt 复制 SELECT EXISTS ( SELECT FROM pg_proc p JOIN pg_namespace n ON p.pronamespace = n.oid WHERE n.nspname = 'your_schema_name' AND p.proname = 'your_procedure_name' ); Oracle 代码语言:txt 复制 SELECT * FROM all_objects WHERE object_type = 'PROCEDURE' ...
In this example I have decided to change postgresql.conf to the following values: 1 2 3 checkpoint_timeout = 120min max_wal_size = 50GB min_wal_size = 80MB Those settings can easily be activated by reloading the config file: 1 2 3 4 5 test=# SELECT pg_reload_conf(); pg_...