Can we use exception in function in Oracle?
You can use the pragma EXCEPTION_INIT to associate exception names with other Oracle error codes that you can anticipate. To handle unexpected Oracle errors, you can use the OTHERS handler. Within this handler, you can call the functions SQLCODE and SQLERRM to return the Oracle error code and message text.
What are the types of exceptions in Oracle?
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 is exception in Oracle with example?
Every Oracle error has a number, but exceptions must be handled by name. So, PL/SQL predefines some common Oracle errors as exceptions. For example, PL/SQL raises the predefined exception NO_DATA_FOUND if a SELECT INTO statement returns no rows. To handle other Oracle errors, you can use the OTHERS handler.
Can we use exception in function?
Important points to note in Exception In function, an exception should always either return value or raise the exception further. else Oracle will throw ‘Function returned without a value’ error at run-time. Transaction control statements can be given at exception handling block.
What are exceptions in database?
An Exception is an error situation, which arises during program execution. When an error occurs exception is raised, normal execution is stopped and control transfers to exceptionhandling part. Exception handlers are routines written to handle the exception.
What are exceptions explain with example?
Explain by giving an example. Exceptions are errors that occur at runtime and disrupt the normal flow of execution of instructions in a program. An exception object is created by the method in which an error occurs which is then handed over to the runtime system.
What is difference between user-defined exception and system defined exception?
While the system defined exceptions are thrown by default, the user-defined ones have to be thrown explicitly by the RAISE keyword. Thus the exception handling helps to deal with the errors that are encountered during the run time execution and not while compiling the program.
What is difference between SQLCODE and Sqlerrm?
SQLCODE returns the number of the last encountered error. SQLERRM returns the message associated with its error-number argument.
What is Sqlcode and Sqlerrm in Oracle?
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.