What is named exception?

Named system exceptions are exceptions that have been given names by PL/SQL. They are named in the STANDARD package in PL/SQL and do not need to be defined by the programmer.

What is the use of exception in PL SQL?

An exception is an error which disrupts the normal flow of program instructions. PL/SQL provides us the exception block which raises the exception thus helping the programmer to find out the fault and resolve it.

What are the two types of exceptions in SQL?

An error occurs during the program execution is called Exception in PL/SQL. There are two type of exceptions: System-defined Exceptions. User-defined Exceptions.

What is the importance of Sqlcode and Sqlerrm?

SQLCODE and SQLERRM are Oracle’s built-in error reporting functions in PL/SQL. When an error occurs in PL/SQL at runtime: SQLCODE returns the number of the last encountered error. SQLERRM returns the message associated with its error-number argument.

What is exception handling in SQL?

An error condition during a program execution is called an exception and the mechanism for resolving such an exception is known as exception handling. We can put all T-SQL statements into a TRY BLOCK and the code for exception handling can be put into a CATCH block.

How many types of exception are there in SQL?

Exception types There are three types of exceptions: Predefined exceptions are error conditions that are defined by PL/SQL. Non-predefined exceptions include any standard TimesTen errors. User-defined exceptions are exceptions specific to your application.

What are SQL exceptions?

An exception is an error condition during a program execution. PL/SQL supports programmers to catch such conditions using EXCEPTION block in the program and an appropriate action is taken against the error condition. There are two types of exceptions − System-defined exceptions. User-defined exceptions.

What happens after exception handler runs?

To handle raised exceptions, you write separate routines called exception handlers. After an exception handler runs, the current block stops executing and the enclosing block resumes with the next statement. If there is no enclosing block, control returns to the host environment.

What is the difference between Sqlcode and Sqlerrm?

SQLCODE returns the number of the last encountered error. SQLERRM returns the message associated with its error-number argument.