Order by and Distinct in SQL






TABLE

Before ORDER BY Clause



FRUIT_NAME
UNIT_PRICE
QUANTITY
PURCHASE_DATE
Apple
100
60
01-Jan-20
Orange
110
40
01-Jan-20
Apple
105
45
02-Jan-20
kiwi
190
22
02-Jan-20
Banana
70
20
03-Jan-20
Pumpkin
14
120
03-Jan-20
Banana
60
23
04-Jan-20
Tomato
13
15
04-Jan-20
Pumpkin
11
12
05-Jan-20
Tomato
22
100
05-Jan-20
Apple
101
11
06-Jan-20
kiwi
200
19
06-Jan-20
Apple
115
12
07-Jan-20
Tomato
11
21
07-Jan-20
Banana
65
25
08-Jan-20
Pumpkin
16
33
08-Jan-20
Apple
105
12
09-Jan-20
Tomato
12
29
09-Jan-20


AFTER ORDER BY Clause

FRUIT_NAME
UNIT_PRICE
QUANTITY
PURCHASE_DATE
Apple
100
60
01-Jan-20
Apple
105
45
02-Jan-20
Apple
101
11
06-Jan-20
Apple
115
12
07-Jan-20
Apple
105
12
09-Jan-20
Banana
70
20
03-Jan-20
Banana
60
23
04-Jan-20
Banana
65
25
08-Jan-20
kiwi
190
22
02-Jan-20
kiwi
200
19
06-Jan-20
Orange
110
40
01-Jan-20
Pumpkin
14
120
03-Jan-20
Pumpkin
11
12
05-Jan-20
Pumpkin
16
33
08-Jan-20
Tomato
13
15
04-Jan-20
Tomato
22
100
05-Jan-20
Tomato
11
21
07-Jan-20
Tomato
12
29
09-Jan-20



--====================================================
Order by in SQL
--====================================================

 SELECT * FROM XXSD_FOOD_TL
 ORDER BY FRUIT_NAME DESC
 

 SELECT * FROM XXSD_FOOD_TL
 ORDER BY FRUIT_NAME, QUANTITY DESC
 
 --====================================================
Different way to use Order by in SQL
--====================================================

 SELECT * FROM XXSD_FOOD_TL
 ORDER BY 4 DESC

 SELECT * FROM XXSD_FOOD_TL
 ORDER BY 1,2,3


--====================================================
Distinct keyword in SQL
--====================================================

select DISTINCT PURCHASE_DATE  from XXSD_FOOD_TL ORDER BY 1

SELECT DISTINCT FRUIT_NAME  FROM XXSD_FOOD_TL


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