SQL and SQLPlus are two tools used in the Oracle Database environment. SQL (Structured Query Language) is a standard language for managing and manipulating relational databases, while SQLPlus is an Oracle-specific command-line interface that allows users to interact with the database...
The most important commands available in SQL * Plus are: ACCEPT – used to read a variable input DEF (DEFINE) – allow you to declare a variable DESC (DESCRIBE) – lists the attributes of objects EDIT – opens an editor EXIT...
Substitution variables are used to store temporary values. For variables of type character or date is mandatory quoting. Substitution variables can occur in a condition WHERE, in the ORDER BY clause, in the name of a table. Syntax SELECT &column FROM...
SQL*Plus is a command-line interface tool provided by Oracle Corporation for interacting with the Oracle Database. It is a powerful and versatile tool widely used by database administrators, developers, and users for executing SQL statements, managing database objects, and performing various...
The WHENEVER SQLERROR command is used in SQLPlus to specify how the tool should handle errors encountered during the execution of SQL statements. It allows you to define specific actions that should be taken when an error occurs, giving you control...