Procedures for Embedding HTML in PL/SQL. A clear delegation of work exists between the HTML and PL/SQL in your company's Web pages: PL/SQL code fetches and manipulates data from SQL databases, and ...

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.

DATEDIFF is a common function in the SQL Server to find the number of days between two dates. Oracle offers its own solution, although does not have the DATEDIFF function.