Value Calculation on oracle sql - sql

Question

I have this table:
CREATE TABLE TEST
(
TITLE VARCHAR2(199 BYTE),
AMOUNT NUMBER,
VALUE NUMBER
)
and this INSERT statement:
INSERT INTO TEST (TITLE, AMOUNT, VAL)
VALUES (Switch, 3000, 12);
COMMIT;
We have an amount = 3000 up to 12, now we need to calculate.
So
3000 multiplied by 1 = 3000
3000 multiplied by 2 = 6000
3000 multiplied by 3 = 9000
3000 multiplied by 4 = 12000
3000 multiplied by 5 = 15000
3000 multiplied by 6 = 18000
3000 multiplied by 7 = 21000
3000 multiplied by 8 = 24000
3000 multiplied by 9 = 27000
3000 multiplied by 10 = 30000
3000 multiplied by 11 = 33000
3000 multiplied by 12 = 36000
Regards
Output is needed in the following format.
Title Amount Total
Switch 30000 3000 6000 9000 12000 15000 18000 21000 24000 27000 30000 33000 36000 231000
plug
board
Can somebody help me how to get this output in SQL?

Answer 1

You can use a recursive query:
WITH data (title, amount, value, idx) AS (
SELECT title, amount, value, 1
FROM test
UNION ALL
SELECT title, amount, value, idx + 1
FROM data
WHERE idx < value
) SEARCH DEPTH FIRST BY title SET order_num
SELECT title, amount * idx AS value
FROM data;
Or a correlated hierarchical query:
SELECT t.title, t.amount * l.idx AS value
FROM test t
CROSS JOIN LATERAL (
SELECT LEVEL AS idx FROM DUAL CONNECT BY LEVEL <= t.value
) l;
Which, for the sample data:
CREATE TABLE TEST ( TITLE VARCHAR2(199 BYTE), AMOUNT NUMBER, VALUE NUMBER )
INSERT INTO TEST ( TITLE, AMOUNT, VALUE ) VALUES ( 'Switch', 3000, 12);
Both output:
TITLE
VALUE
Switch
3000
Switch
6000
Switch
9000
Switch
12000
Switch
15000
Switch
18000
Switch
21000
Switch
24000
Switch
27000
Switch
30000
Switch
33000
Switch
36000
fiddle
Or for your output format:
WITH data (title, amount, value, idx) AS (
SELECT title, amount, value, 1
FROM test
UNION ALL
SELECT title, amount, value, idx + 1
FROM data
WHERE idx < value
) SEARCH DEPTH FIRST BY title SET order_num
SELECT title,
LISTAGG(amount * idx, ' ') WITHIN GROUP (ORDER BY idx) AS amounts,
SUM(amount*idx) AS total
FROM data
GROUP BY title;
or
SELECT t.title,
l.amounts,
t.amount * t.value * (t.value + 1) / 2 AS total
FROM test t
CROSS JOIN LATERAL (
SELECT LISTAGG(LEVEL * t.amount, ' ') WITHIN GROUP (ORDER BY LEVEL) AS amounts
FROM DUAL CONNECT BY LEVEL <= t.value
) l;
Which both output:
TITLE
AMOUNTS
TOTAL
Switch
3000 6000 9000 12000 15000 18000 21000 24000 27000 30000 33000 36000
234000
fiddle

Answer 2

Try it like here:
WITH
tbl AS
(
Select 'Switch' "TITLE", 3000 "AMOUNT", 12 "VAL" From Dual
)
--
Select TITLE, AMOUNT, TOTAL
From (Select LEVEL "ID", TITLE "TITLE", Sum(AMOUNT * LEVEL) OVER() "TOTAL",
LISTAGG(AMOUNT * LEVEL, ' ') WITHIN GROUP (ORDER BY LEVEL) OVER() "AMOUNT"
From tbl
Connect By LEVEL <= VAL )
Where ID = 1
--
-- R e s u l t :
-- TITLE AMOUNT TOTAL
-- ------- --------------------------------------------------------------------- ------
-- Switch 3000 6000 9000 12000 15000 18000 21000 24000 27000 30000 33000 36000 234000

Answer 3

Dear Respectful Experts
Thanks for your Cooperation,
I have oracle 10 G which do not support LISTAGG, what i need to do in 10G,
Thanks
Regards