Using PRAGMA EXCEPTION_INIT : Exception Handle « PL SQL « Oracle PL / SQL

Using PRAGMA EXCEPTION_INIT

     

SQL>
SQL> CREATE TABLE myLogTable (
  2    code             NUMBER,
  3    message          VARCHAR2(200),
  4    info             VARCHAR2(100)
  5    );

Table created.

SQL>
SQL>
SQL>   CREATE TABLE lecturer (
  2    id               NUMBER(5) PRIMARY KEY,
  3    first_name       VARCHAR2(20),
  4    last_name        VARCHAR2(20),
  5    major            VARCHAR2(30),
  6    current_credits  NUMBER(3)
  7    );

Table created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10001, 'Scott', 'Lawson','Computer Science', 11);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major, current_credits)
  2                VALUES (10002, 'Mar', 'Wells','History', 4);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10003, 'Jone', 'Bliss','Computer Science', 8);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10004, 'Man', 'Kyte','Economics', 8);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10005, 'Pat', 'Poll','History', 4);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10006, 'Tim', 'Viper','History', 4);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10007, 'Barbara', 'Blues','Economics', 7);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10008, 'David', 'Large','Music', 4);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10009, 'Chris', 'Elegant','Nutrition', 8);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10010, 'Rose', 'Bond','Music', 7);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10011, 'Rita', 'Johnson','Nutrition', 8);

1 row created.

SQL>
SQL> INSERT INTO lecturer (id, first_name, last_name, major,current_credits)
  2                VALUES (10012, 'Sharon', 'Clear','Computer Science', 3);

1 row created.

SQL> DECLARE
  2    e_MissingNull EXCEPTION;
  3    PRAGMA EXCEPTION_INIT(e_MissingNull, -1400);
  4  BEGIN
  5    INSERT INTO lecturer (id) VALUES (NULL);
  6  EXCEPTION
  7    WHEN e_MissingNull then
  8      INSERT INTO myLogTable (info) VALUES ('ORA-1400 occurred');
  9  END;
 10  /

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL> select * from myLogTable;

      CODE MESSAGE
---------- --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
INFO
----------------------------------------------------------------------------------------------------

ORA-1400 occurred


SQL>
SQL> drop table myLogTable;

Table dropped.

SQL> drop table lecturer;

Table dropped.

SQL>
SQL>
SQL>

1.	Check exception type
2.	Deal with multiple exception branches
3.	when other exceptions then
4.	Handle update exception
5.	declaration exception
6.	handle exception of duplicate value on index
7.	when other then not user-defined exception
8.	Different Values of SQLCODE and SQLERRM
9.	The OTHERS Exception Handler
10.	Error-handling features of PL/SQL: log exception
11.	PLS-483 error: Duplicate Handlers
12.	NO_DATA_FOUND exception.
13.	The scope of exceptions.
14.	Sub block in exception section
15.	Catch all exceptions
16.	Catch user-defined exception
17.	Check zero divide exception
18.	Combines declaring an EXCEPTION variable
19.	Insert error message to a table in exception handler
20.	Mapping a user-defined error code to an EXCEPTION variable
21.	This script demonstrates the EXCEPTION_INIT pragma.
22.	Error Handling Call
23.	Raise exception in if statement

Using PRAGMA EXCEPTION_INIT : Exception Handle « PL SQL « Oracle PL / SQL

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