When you use SELECT in a PL/SQL block, it’s important to make sure that exactly one row will always be returned by your query. If more than one row is returned, the TOO_MANY_ROWS exception occurs.

About The solutions of PL/SQL challenges on w3resources executed on Oracle environment compiled with helpful Resources & references related to the challenges.

The key is that PL/SQL doesn't know anything about the bind variable when it is parsing and validating the PL/SQL that is about to execute -- so you have to use a local variable and copy the local ...

PL/SQL stored subprograms are compiled once and stored in excutable form in the database for future use. PL/SQL offers exception handling and support for object-oriented programming. Applications ...

PL/SQL stored subprograms are compiled once and stored in excutable form in the database for future use. PL/SQL offers exception handling and support for object-oriented programming. Applications ...