Function is must be return the value but procedure cannot be returned, for more information please visit the link : http://youropensource.com
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SQL*PLUS is a interface between user and Oracle database. It Provide an environment to use the SQL which is a query language to communicate with oracle database
Not possible in SQL, but possible in many vendor-specific SQL-based languages like Oracle PL/SQL.
SQL means Structured Query Language. It is a programming language which is mainly used for maintaining databases. Excel is one of the application developed by Microsoft to do calculations, graphs using spreadsheets.
Basically in isql we use browser and we can also use mouse here. But in sql we use terminal where we cannot use the mouse. Commands syntax are different from each other.
SUBSTR