Difference Between SQL and PL/SQL
SQL, Structured Query Language, is a standard database language used to create, maintain and retrieve relational databases, and PL/SQL, the procedural language of SQL Extensions, which extend SQL and provide procedural capabilities.
The following are the important differences between SQL and PL/SQL.
Serial number | Keywords | SQL | PL/SQL |
---|---|---|---|
1 | Definition | SQL is a structured query language for databases. | PL/SQL is a programming language that uses SQL. |
2 | Variables | SQL has no variables. | PL/SQL has variables, data types, etc. |
3 | Control structure | SQL does not have FOR loops, if controls, and similar structures. | PL/SQL has FOR loops, while loops, if controls and other similar structures. |
4 | Operation | SQL can only perform one operation at a time. | PL/SQL can perform multiple operations at the same time. |
5 | Language type | SQL is a declarative language. | PL/SQL is a procedural language. |
6 | Embedding | SQL can be embedded in PL/SQL blocks. | PL/SQL can also be embedded in SQL code. |
6 | Interaction | SQL interacts directly with the database server. | PL/SQL does not interact directly with the database server. |
7 | Positioning | SQL is a data-oriented language. | PL/SQL is an application-oriented language. |
8 | Objective | SQL is used to write queries, create and execute DDL and DML statements. | PL/SQL is used to write program blocks, functions, procedures, triggers and packages. |
The above is the detailed content of Difference Between SQL and PL/SQL. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

This article explores optimizing MySQL memory usage in Docker. It discusses monitoring techniques (Docker stats, Performance Schema, external tools) and configuration strategies. These include Docker memory limits, swapping, and cgroups, alongside

This article addresses MySQL's "unable to open shared library" error. The issue stems from MySQL's inability to locate necessary shared libraries (.so/.dll files). Solutions involve verifying library installation via the system's package m

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

This article compares installing MySQL on Linux directly versus using Podman containers, with/without phpMyAdmin. It details installation steps for each method, emphasizing Podman's advantages in isolation, portability, and reproducibility, but also

This article provides a comprehensive overview of SQLite, a self-contained, serverless relational database. It details SQLite's advantages (simplicity, portability, ease of use) and disadvantages (concurrency limitations, scalability challenges). C

This guide demonstrates installing and managing multiple MySQL versions on macOS using Homebrew. It emphasizes using Homebrew to isolate installations, preventing conflicts. The article details installation, starting/stopping services, and best pra

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]
