How many types of exception are there in SQL?
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.
How many types of exception are there in SQL A 2 B 3 C 4 D 5?
There are two type of exceptions: System-defined Exceptions. User-defined Exceptions.
What is an error condition during a program execution?
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.
Which statements can be checked for handling errors a DDL B TCL C DML D TTL?
Explanation: DML statements can be checked for handling errors.
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. Oracle has a standard set of exceptions already named as follows: Oracle Exception Name. Oracle Error.
What type of exception requires a raise statement?
The RAISE statement stops normal execution of a PL/SQL block or subprogram and transfers control to an exception handler. RAISE statements can raise predefined exceptions, such as ZERO_DIVIDE or NO_DATA_FOUND , or user-defined exceptions whose names you decide.
What is a view Mcq?
This set of SQL Server Multiple Choice Questions & Answers (MCQs) focuses on “Views”. … Explanation: VIEW is a virtual table, through which a selective portion of the data from one or more tables can be seen. A view do not contain data of their own. 2.
How can we insert data into a view Mcq?
How can we insert data into a view? Explanation: We can insert data into a view using the inset into values ( ); statement. This operation can be done only if the view is updatable. Explanation: We can update a view only if it has a single database relation in the “from” clause.
What are the after triggers?
Explanation: The triggers run after an insert, update or delete on a table. They are not supported for views. … Explanation: AFTER TRIGGERS can be classified further into three types as: AFTER INSERT Trigger, AFTER UPDATE Trigger, AFTER DELETE Trigger.
How do you handle errors in PL SQL?
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.
Predefined PL/SQL Exceptions.
|Exception||Oracle Error||SQLCODE Value|
What is condition error?
An error condition is the process state that occurs when a program encounters a condition that cannot be resolved, forcing an abort to the FlashBASIC or BASIC debugger.