Use cursor variable in update statement : Update « PL SQL Programming « Oracle PL/SQL Tutorial






SQL>
SQL> CREATE TABLE employee
  2  (employee_id         NUMBER(7),
  3   last_name           VARCHAR2(25),
  4   first_name          VARCHAR2(25),
  5   userid              VARCHAR2(8),
  6   start_date          DATE,
  7   comments            VARCHAR2(255),
  8   manager_id          NUMBER(7),
  9   title               VARCHAR2(25),
 10   department_id       NUMBER(7),
 11   salary              NUMBER(11, 2),
 12   commission_pct      NUMBER(4, 2)
 13  );

Table created.

SQL>
SQL> INSERT INTO employee VALUES (1, 'V', 'Ben', 'cv',to_date('03-MAR-90 8:30', 'dd-mon-yy hh24:mi'),NULL, NULL, 'PRESIDENT', 50, 2500, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (2, 'N', 'Haidy', 'ln', '08-MAR-90', NULL,1, 'VP, OPERATIONS', 41, 1450, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (3, 'N', 'Molly', 'mn', '17-JUN-91',NULL, 1, 'VP, SALES', 31, 1400, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (4, 'S', 'Mark', 'mq', '07-APR-90',NULL, 1, 'VP, FINANCE', 10, 1450, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (5, 'R', 'AUDRY', 'ar', '04-MAR-90',NULL, 1, 'VP, ADMINISTRATION', 50, 1550, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (6, 'U', 'MOLLY', 'mu', '18-JAN-91',NULL, 2, 'WAREHOUSE MANAGER', 41, 1200, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (7, 'M', 'ROBERTA', 'rm', '14-MAY-90',NULL, 2, 'WAREHOUSE MANAGER', 41, 1250, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (8, 'B', 'BEN', 'ry', '07-APR-90', NULL, 2,'WAREHOUSE MANAGER', 41, 1100, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (9, 'C', 'Jane', 'ac', '09-FEB-92',NULL, 2, 'WAREHOUSE MANAGER', 41, 1300, NULL);

1 row created.

SQL> INSERT INTO employee VALUES (10, 'H', 'Mart', 'mh', '27-FEB-91', NULL, 2,'WAREHOUSE MANAGER', 41, 1307, NULL);

1 row created.

SQL>
SQL>
SQL>
SQL> DECLARE
  2     CURSOR empCursor IS
  3        SELECT employee_id, department_id, NVL(salary,0) salary, ROWID
  4        FROM   employee;
  5     lv_record_num PLS_INTEGER DEFAULT 0;
  6  BEGIN
  7     FOR empRecord IN empCursor LOOP
  8        lv_record_num := lv_record_num + 1;
  9       IF empRecord.department_id = 10 OR
 10          empRecord.department_id = 41 THEN
 11           IF empRecord.salary > 1000 THEN
 12              empRecord.salary := empRecord.salary * 1.05;
 13           ELSE
 14              empRecord.salary := empRecord.salary * 1.10;
 15           END IF;
 16        ELSIF empRecord.department_id = 31 THEN
 17           IF empRecord.salary > 1400 THEN
 18              empRecord.salary := empRecord.salary * 1.05;
 19           ELSE
 20              empRecord.salary := empRecord.salary * 1.10;
 21           END IF;
 22        ELSIF empRecord.department_id = 50 THEN
 23           IF empRecord.salary > 2000 THEN
 24              empRecord.salary := empRecord.salary * 1.05;
 25           ELSE
 26              empRecord.salary := empRecord.salary * 1.10;
 27           END IF;
 28        END IF;
 29        UPDATE employee
 30        SET    salary = empRecord.salary
 31        WHERE  rowid  = empRecord.ROWID;
 32     DBMS_OUTPUT.PUT_LINE(' Employee: '   || empRecord.employee_id  ||
 33        ' Department: ' || empRecord.department_id ||' New Salary: ' ||
 34        to_char(empRecord.salary, '$999,999.99'));
 35     END LOOP;
 36     COMMIT;
 37     DBMS_OUTPUT.PUT_LINE('Update Process Complete. ' ||
 38        lv_record_num || ' Records Processed.');
 39     EXCEPTION
 40        WHEN OTHERS THEN
 41           DBMS_OUTPUT.PUT_LINE('Error on Record ' || lv_record_num ||
 42           ': Update Process Aborted.');
 43           ROLLBACK;
 44  END;
 45  /
Employee: 1 Department: 50 New Salary:    $2,625.00
Employee: 2 Department: 41 New Salary:    $1,522.50
Employee: 3 Department: 31 New Salary:    $1,540.00
Employee: 4 Department: 10 New Salary:    $1,522.50
Employee: 5 Department: 50 New Salary:    $1,705.00
Employee: 6 Department: 41 New Salary:    $1,260.00
Employee: 7 Department: 41 New Salary:    $1,312.50
Employee: 8 Department: 41 New Salary:    $1,155.00
Employee: 9 Department: 41 New Salary:    $1,365.00
Employee: 10 Department: 41 New Salary:    $1,372.35
Update Process Complete. 10 Records Processed.

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL> drop table employee;

Table dropped.

SQL>
SQL>








24.11.Update
24.11.1.How DML works with PL/SQL
24.11.2.UPDATE statement with variable
24.11.3.Update value and return affected row count
24.11.4.Use update statement in stored procedure
24.11.5.Use cursor variable in update statement
24.11.6.Procedure for adjust salary
24.11.7.Update returning into
24.11.8.Update salary with stored procedure
24.11.9.Update table and return if success