Which section of the PL SQL block handles errors and abnormal conditions declaration exception executable begin?
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Review Questions Show 1. Which section of the PL/SQL block handles errors and abnormal conditions? A. Declaration section B. Exception section C. Executable section D. Anonymous block 2. What is the mandatory clause in a SELECT statement when used inside a PL/SQL block? A. INTO B. WHERE C. ORDER BY D. GROUP BY 3. Which line of the code has an error? 1 declare 2 X1 number := 0; 3 1Y number := 0; 4 begin 5 X := 10; 6 1Y := X + 1Y; 7 end; A. Line 2 B. Line 3 C. Line 5 D. The code has no error. Search WWH ::  Custom Search What is Exception Handling? A message is showed, if an exception occurs that says the reason for its cause. PLSQL Exception Handling has three parts. The syntax DECLARE BEGIN EXCEPTION
WHEN exp1 THEN Exp1statements WHEN exp2 THEN Exp2-statements ….. WHEN others THEN Exp3-statements END; Syntax Explanation
TypesThere are two types of PLSQL Exception Handling. System-defined Exceptions
Named System Exceptions
Unnamed System Exceptions
These are handled in two ways:
Oracle enables us to declare and use our own exceptions. These are known as User-defined exceptions, which are defined by the users. These can be declared in 3 ways. 1. Using the RAISE_APPLICATION_ERROR method. 2. Using the PRAGMA EXCEPTION_INIT function. 3. Using variable of EXCEPTION Type. Get in depth knowledge on pl sql through step by step through pl sql training from scratch Gökhan YAVAŞ Muhammed Hilmi Koca NERMİN PARLAK What section of a PL SQL program is used for exceptionUser-defined exceptions can be defined in the DECLARE section of either the current block or its surrounding block, or in the DECLARE section of a PL/SQL package.
How do you handle errors in PL SQL?PL/SQL allows you to define your own exceptions according to the need of your program. A user-defined exception must be declared and then raised explicitly, using either a RAISE statement or the procedure DBMS_STANDARD. RAISE_APPLICATION_ERROR.
Which section of a PL SQL block contains the keyword begin?However, PL/SQL anonymous blocks can be useful for testing purposes. A PL/SQL block has a declaration section where you declare variables, allocate memory for cursors, and define data types. A PL/SQL block has an executable section. An executable section starts with the keyword BEGIN and ends with the keyword END .
What is the purpose of Begin and exception section in PL SQL?An error occurs during the program execution is called Exception in PL/SQL. PL/SQL facilitates programmers to catch such conditions using exception block in the program and an appropriate action is taken against the error condition. There are two type of exceptions: System-defined Exceptions.
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