Oracle Database Interview Question:

How To Use Attributes of the Implicit Cursor in Oracle?

Submitted by: Administrator

Right after executing a DML statement, you retrieve any attribute of the implicit cursor by using SQL%attribute_name, as shown in the following tutorial exercise:

CREATE TABLE student (id NUMBER(5) PRIMARY KEY,
first_name VARCHAR(80) NOT NULL,
last_name VARCHAR(80) NOT NULL);
Table created.

DECLARE
id NUMBER;
first_name CHAR(10);
BEGIN
id := 29;
first_name := 'Bob';
INSERT INTO student VALUES(id, first_name, 'Henry');
first_name := 'Joe';
INSERT INTO student VALUES(id+1, first_name, 'Bush');
DBMS_OUTPUT.PUT_LINE('# of rows inserted: '
|| SQL%ROWCOUNT);

first_name := 'ggl';
UPDATE student SET first_name = first_name WHERE id = 29;
IF SQL%FOUND THEN
DBMS_OUTPUT.PUT_LINE('# of rows updated: '
|| SQL%ROWCOUNT);
END IF;

UPDATE student SET first_name = first_name
WHERE id = id+1;
IF SQL%NOTFOUND THEN
DBMS_OUTPUT.PUT_LINE('No records updated.');
END IF;

DELETE FROM student WHERE id = id;
DBMS_OUTPUT.PUT_LINE('# of rows deleted: '
|| SQL%ROWCOUNT);
END;
/
# of rows inserted: 1
# of rows updated: 1
No records updated.
# of r
Submitted by: Administrator