How many types of exceptions are there in SQL Mcq?

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.

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.

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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
VALUE_ERROR ORA-06502 -6502
ZERO_DIVIDE ORA-01476 -1476

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.

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