Mega Code Archive
NUMBER data type
<![CDATA[
SQL>
SQL> CREATE TABLE precision (
2 value NUMBER(38,5),
3 scale NUMBER(10));
Table created.
SQL>
SQL> INSERT INTO precision (value, scale)
2 VALUES (12345, 0);
1 row created.
SQL> INSERT INTO precision (value, scale)
2 VALUES (123456, 0);
1 row created.
SQL> INSERT INTO precision (value, scale)
2 VALUES (123.45, 0);
1 row created.
SQL> INSERT INTO precision (value, scale)
2 VALUES (12345, 2);
1 row created.
SQL> INSERT INTO precision (value, scale)
2 VALUES (123.45, 2);
1 row created.
SQL> INSERT INTO precision (value, scale)
2 VALUES (12.345, 2);
1 row created.
SQL> INSERT INTO precision (value, scale)
2 VALUES (1234.5, 2);
1 row created.
SQL>
SQL> commit;
Commit complete.
SQL>
SQL> SET SERVEROUTPUT ON
SQL>
SQL> DECLARE
2 v_integer NUMBER(5);
3 v_scale_2 NUMBER(5,2);
4 v_real NUMBER;
5
6 CURSOR scale_0_cur
7 IS
8 SELECT value
9 FROM precision
10 WHERE scale = 0;
11
12 CURSOR scale_2_cur
13 IS
14 SELECT value
15 FROM precision
16 WHERE scale = 2;
17 BEGIN
18
19 DBMS_OUTPUT.PUT_LINE('PRECISION 5 SCALE 0');
20
21 OPEN scale_0_cur;
22
23 -- Loop thorugh all records that have a scale of zero
24 LOOP
25 FETCH scale_0_cur INTO v_real;
26 EXIT WHEN scale_0_cur%NOTFOUND;
27
28 -- Assign different values to the v_integer variable
29 -- to see how it handles it
30 BEGIN
31 DBMS_OUTPUT.PUT_LINE(' ');
32 DBMS_OUTPUT.PUT_LINE('Assigned: '||v_real);
33
34 v_integer := v_real;
35
36 DBMS_OUTPUT.PUT_LINE('Stored: '||v_integer);
37 EXCEPTION
38 WHEN OTHERS
39 THEN
40 DBMS_OUTPUT.PUT_LINE('Exception: '||sqlerrm);
41 END;
42 END LOOP;
43
44 CLOSE scale_0_cur;
45
46
47 END;
48 /
PRECISION 5 SCALE 0
Assigned: 12345
Stored: 12345
Assigned: 123456
Exception: ORA-06502: PL/SQL: numeric or value error: number precision too large
Assigned: 123.45
Stored: 123
PL/SQL procedure successfully completed.
SQL>
SQL> drop table precision;
Table dropped.
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