SQL> CREATE TABLE emp (
2 id NUMBER PRIMARY KEY,
3 fname VARCHAR2(50),
4 lname VARCHAR2(50)
5 );
Table created.
SQL>
SQL> INSERT INTO emp (id, fname, lname)VALUES (1, 'A', 'B');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (2, 'C', 'D');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (3, 'Enn', 'F');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (4, 'G', 'H');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (5, 'G', 'Z');
1 row created.
SQL>
SQL>
SQL> CREATE TABLE book (
2 isbn CHAR(10) PRIMARY KEY,
3 category VARCHAR2(20),
4 title VARCHAR2(100),
5 num_pages NUMBER,
6 price NUMBER,
7 copyright NUMBER(4),
8 emp1 NUMBER,
9 emp2 NUMBER,
10 emp3 NUMBER
11 );
Table created.
SQL>
SQL> INSERT INTO book (isbn, category, title, num_pages, price, copyright, emp1, emp2, emp3)
2 VALUES ('1', 'Database', 'Oracle', 563, 39.99, 2009, 1, 2, 3);
1 row created.
SQL> INSERT INTO book (isbn, category, title, num_pages, price, copyright, emp1, emp2)
2 VALUES ('2', 'Database', 'MySQL', 765, 44.99, 2009, 4, 5);
1 row created.
SQL> INSERT INTO book (isbn, category, title, num_pages, price, copyright, emp1, emp2, emp3)
2 VALUES ('3', 'Database', 'SQL Server', 404, 39.99, 2001, 6, 7, 8);
1 row created.
SQL>
SQL> SET SERVEROUTPUT ON ESCAPE OFF
SQL>
SQL> DECLARE
2
3 fnameValue emp.fname%TYPE;
4 lnameValue emp.lname%TYPE;
5 v_row_count PLS_INTEGER := 0;
6 v_book_count PLS_INTEGER := 0;
7
8 CURSOR auth_cur IS
9 SELECT a.fname, a.lname, count(b.title)
10 FROM emp a, book b
11 GROUP BY a.fname, a.lname
12 HAVING count(b.title) > 0
13 ORDER BY a.lname;
14
15 BEGIN
16 DBMS_OUTPUT.ENABLE(1000000);
17 OPEN auth_cur;
18 LOOP
19 FETCH auth_cur INTO fnameValue, lnameValue, v_book_count;
20 EXIT WHEN auth_cur%NOTFOUND;
21
22
23 v_row_count := auth_cur%ROWCOUNT;
24 DBMS_OUTPUT.PUT_LINE(v_row_count||' rows processed so far');
25
26 DBMS_OUTPUT.PUT_LINE(lnameValue||','||fnameValue||' wrote '||v_book_count||' book(s).');
27 END LOOP;
28 CLOSE auth_cur;
29 IF auth_cur%ISOPEN = FALSE
30 THEN
31 DBMS_OUTPUT.PUT_LINE('Cursor closed');
32 ELSE
33 DBMS_OUTPUT.PUT_LINE('The cursor is still open');
34 END IF;
35
36 EXCEPTION
37 WHEN OTHERS
38 THEN
39 DBMS_OUTPUT.PUT_LINE(SQLERRM);
40 END;
41 /
1 rows processed so far
B,A wrote 3 book(s).
2 rows processed so far
D,C wrote 3 book(s).
3 rows processed so far
F,Enn wrote 3 book(s).
4 rows processed so far
H,G wrote 3 book(s).
5 rows processed so far
Z,G wrote 3 book(s).
Cursor closed
PL/SQL procedure successfully completed.
SQL> drop table emp;
Table dropped.
SQL> drop table book;
Table dropped.
SQL>
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