Local Subprograms : Function Call « Stored Procedure Function « Oracle PL / SQL





Local Subprograms

 
SQL>
SQL> CREATE TABLE MyTable (
  2    num_col    NUMBER,
  3    char_col   VARCHAR2(60)
  4    );

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>
SQL> DECLARE
  2    CURSOR myAllLecturer IS
  3      SELECT first_name, last_name
  4        FROM lecturer;
  5
  6    v_FormattedName VARCHAR2(50);
  7
  8    FUNCTION FormatName(p_FirstName IN VARCHAR2,
  9                        p_LastName IN VARCHAR2)
 10      RETURN VARCHAR2 IS
 11    BEGIN
 12      RETURN p_FirstName || ' ' || p_LastName;
 13    END FormatName;
 14
 15  BEGIN
 16    FOR myLecturerRecord IN myAllLecturer LOOP
 17      v_FormattedName :=
 18        FormatName(myLecturerRecord.first_name,
 19                   myLecturerRecord.last_name);
 20      INSERT INTO MyTable (char_col)
 21        VALUES (v_FormattedName);
 22    END LOOP;
 23
 24    COMMIT;
 25  END;
 26  /

PL/SQL procedure successfully completed.

SQL>
SQL> select * from MyTable;

   NUM_COL CHAR_COL
---------- ------------------------------------------------------------
           Scott Lawson
           Mar Wells
           Jone Bliss
           Man Kyte
           Pat Poll
           Tim Viper
           Barbara Blues
           David Large
           Chris Elegant
           Rose Bond
           Rita Johnson

   NUM_COL CHAR_COL
---------- ------------------------------------------------------------
           Sharon Clear

12 rows selected.

SQL>
SQL> drop table lecturer;

Table dropped.

SQL> drop table MyTable;

Table dropped.

 










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