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Difference Between SQL and PL/SQL

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Release: 2023-08-24 09:41:05
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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.

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source:tutorialspoint.com
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