PL/SQL 是一种块结构的语言,它将一组语句放在一个块中,一次性发送给服务器, PL/SQL 引擎分析收到 PL/SQL 语句块中的内容,把其中的过程控制语句由 PL/SQL 引擎自身去执行, 把PL/SQL 块中的 SQL 语句交给服务器的 SQL 语句执行器执行。 PL/SQL 块发送给服务器后,先被编译然后执行,对于有名称的 PL/SQL 块(如子
DB2 9.5 SQL Procedure Developer 认证考试 735 准备,第 1 部分: SQL Procedural Language 入门Marina Greenstein
首页 PL/SQL(Procedural Language/Structured Query Language)PL/SQL(Procedural Language/Structured Query Language)云服务器 PL/SQL在数据集成中如何应用 PL/SQL在数据集成中可用于编写存储过程、触发器和函数,实现数据的提取、转换和加载,提高数据处理效率。
What is PL/SQL? PLSQL stands for "Procedural Language extensions to SQL", and can be used in Oracle databases. PL SQL is closely integrated into the SQL language, yet it adds programming constructs that are not native to SQL. PL/SQL also implements basic exception handling. This tutorial ...
The SQL procedure illustrated inFigure 3.3demonstrates the non-atomicity of NOT ATOMIC compound statements: Figure 3.3 NOT ATOMIC Compound Statement Example CREATE PROCEDURE not_atomic_proc () SPECIFIC not_atomic_proc LANGUAGE SQL BEGIN NOT ATOMIC ...
In PL/SQL there are three types of loops: Exit loop while loop for loop Let’s learn one by one... 1) Exit loop Exit loop is unconditional looping. It must be controlled by some condition. Syntax: loop <keyword> statement1; statement2; statement3; ...;(number of statements) end lo...
InOracledatabase management, PL/SQL is a procedural language extension to Structured Query Language (SQL). The purpose of PL/SQL is to combine database language and procedural programming language. The basic unit in PL/SQL is called ablockand is made up of three parts: a declarative part, ...
Back in MariaDB Server 10.3, we added a new SQL mode (SQL_MODE=ORACLE) to providecompatibility with a subset of Oracle PL/SQL, a procedural extension to the Structured Query Language (SQL). With therecent release of MariaDB Community Server 10.6, we’ve continued on our journey to expand...
This chapter focuses on the various procedural features of SQL, which include stored procedures, triggers, and cursors. Stored procedures, or more properly, Persistent Stored Modules (SQL/PSM), give SQL its own 4GL programming language. The ANSI/ISO Standard 4GL programming language in SQL is ...
It's no question that the Structured Query Language (SQL) has been a powerful tool that has helped developers create amazing solutions over the years, but it also has its limitations. Enter PL/SQL, a procedural extension for SQL. PL/SQL unleashed the power of procedural code to Ma...