Titan Company Oracle Application Technical Consultant Interview Questions, Process, and Tips

Decode is a function in Oracle that is used to provide if-then-else type of logic, while Case is used for conditional logic with multiple conditions.

• Decode is used for simple if-then-else logic, while Case is used for more complex conditional logic.

• Decode can only handle equality conditions, while Case can handle a variety of conditions.

• Case allows for multiple conditions and multiple results, while Decode only allows ...read more

Exceptions in Bulk Collect can be handled using SAVE EXCEPTIONS clause and FORALL statement.

• Use SAVE EXCEPTIONS clause to handle exceptions in Bulk Collect.

• Use FORALL statement to process the data and handle exceptions efficiently.

• Exceptions can be logged, ignored, or handled based on the business requirements.

Cursor attributes are properties that provide information about the status of a cursor in PL/SQL.

• Cursor attributes include %FOUND, %NOTFOUND, %ROWCOUNT, and %ISOPEN.

• They are used to check the status of a cursor after a DML operation.

• For example, %FOUND returns TRUE if a fetch operation successfully retrieves a row.

Pragma autonomous transaction is used to create a new transaction within the current transaction.

• Pragma autonomous transaction allows a subprogram to start a new transaction that is independent of the calling transaction.

• This is useful when you need to commit or rollback changes made by the subprogram without affecting the main transaction.

• It is commonly used in triggers, where you want to perform some actions independ...read more