An explicit cursor fetch loop. : Explicit Cursor « Cursor « Oracle PL / SQL

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Oracle PL / SQL » Cursor » Explicit Cursor 
An explicit cursor fetch loop.
 
SQL>
SQL>
SQL> CREATE TABLE lecturer (
  2    id               NUMBER(5PRIMARY 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);

row created.

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

row created.

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

row created.

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

row created.

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

row created.

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

row created.

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

row created.

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

row created.

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

row created.

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

row created.

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

row created.

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

row created.

SQL>
SQL>
SQL> DECLARE
  2    myLecturerID    lecturer.id%TYPE;
  3    firstName    lecturer.first_name%TYPE;
  4    v_LastName     lecturer.last_name%TYPE;
  5
  6    v_Major        lecturer.major%TYPE := 'Computer Science';
  7
  8    CURSOR cursorValue IS
  9      SELECT id, first_name, last_name
 10        FROM lecturer
 11        WHERE major = v_Major;
 12  BEGIN
 13    OPEN cursorValue;
 14    LOOP
 15      FETCH cursorValue INTO myLecturerID, firstName, v_LastName;
 16
 17      EXIT WHEN cursorValue%NOTFOUND;
 18    END LOOP;
 19    CLOSE cursorValue;
 20  END;
 21  /

PL/SQL procedure successfully completed.

SQL>
SQL> drop table lecturer;

Table dropped.

SQL>

 
Related examples in the same category
1. Explicit Cursor Demo
2. Implicit and Explicit Cursors
3. an explicit cursor that selects data
4. Use cursor to store the row count
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