March 2022
Intermediate to advanced
682 pages
22h 58m
English
SQL’s query language is declarative, or nonprocedural, which means that it allows us to specify what data is to be retrieved without giving the steps for retrieving it. It can be used as an interactive language for queries, embedded in a host programming language, or as a complete language for computations using SQL/PSM (SQL/Persistent Stored Modules).
The SQL data manipulation language (DML) statements are

The SELECT statement is used for retrieval of data. It is a powerful command, performing the equivalent of relational algebra’s ...