How to use is not null in sql server

Select not null columns in SQL server: NOT NULL is used to ignore the empty value.

NOT NULL Keyword:
Syntax:
         Select [*|COLUMN_NAME,...] From [TABLE_NAME] Where [COLUMN_NAME] Is NOT NULL

Description:
             Select: SQL Keyword.
             * | COLUMN_NMME: All or specific column name.
             From: SQL Keyword.
             TABLE_NAME: Name of table.
             Where: SQL keyword.
             IS: SQL Operator             
        NOT NULL: Keyword.


Here is a Table ItemDetails

ItemCode	ItemName	ManufactureCompany	ItemSerialNo	ItemCategory	ItemQuantity	ItemPrice	ProductCountry
1	Samsung Mobile	Samsung	S12345	Mobile	500	240	Korea
2	Samsung Pro	Samsung	SP1234	Mobile	100	300	Korea
3	Samsung Headphone	Samsung	SH2345	Headphone	50	50	Korea
4	iPhone	iPone	iP12345	Mobile	1000	500	United Stat
5	Apple Mobile	Apple	A12345	Mobile	200	300	United Stat
6	Apple Computer	Apple	A12343	Computer	200	400	United Stat
7	Apple Macbook	Apple	AM2345	Macbook	50	600	United Stat
8	Dell Computer	DELL	D02345	Computer	200	240	United Stat
9	Dell Laptop	DELL	DL2345	Laptop	30	240	United Stat
10	Apple Laptop	Apple	AL2345	Laptop	500	100	United Stat
11	Apple Headphone	Apple	AH2345	Headphone	50	20	United Stat
12	Sony Camera	Sony	SN2345	Camera	200	240	Japan
13	Sony Headphone	Sony	SNH345	Headphone	500	50	Japan
14	Ascer Computer	Ascer	AC2345	Computer	100	600	China
16	Borother Printer	Brother	B12345	Printer	200	200	China
17	Ascer Printer	Ascer	AP2345	Printer	200	150	China
18	Brother Photocopy	Brother	BP2345	Printer	20	150	China
19	Brother Multi Printer	Brother	BM243	Photocopy	NULL	NULL	India

SQL NULL Keyword

Now,

Select ItemCode,ItemName,ManufactureCompany,ItemQuantity from ItemDetails Where ItemQuantity IS NOT NULL

Result:

ItemCode	ItemName	ManufactureCompany	ItemQuantity
1	Samsung Mobile	Samsung	500
2	Samsung Pro	Samsung	100
3	Samsung Headphone	Samsung	50
4	iPhone	iPone	1000
5	Apple Mobile	Apple	200
6	Apple Computer	Apple	200
7	Apple Macbook	Apple	50
8	Dell Computer	DELL	200
9	Dell Laptop	DELL	30
10	Apple Laptop	Apple	500
11	Apple Headphone	Apple	50
12	Sony Camera	Sony	200
13	Sony Headphone	Sony	500
14	Ascer Computer	Ascer	100
16	Borother Printer	Brother	200
17	Ascer Printer	Ascer	200
18	Brother Photocopy	Brother	20

Select ItemCode,ItemName,ManufactureCompany,ItemPrice from ItemDetails Where ItemPrice IS NOT NULL

Result:

ItemCode	ItemName	ManufactureCompany	ItemPrice
1	Samsung Mobile	Samsung	240
2	Samsung Pro	Samsung	300
3	Samsung Headphone	Samsung	50
4	iPhone	iPone	500
5	Apple Mobile	Apple	300
6	Apple Computer	Apple	400
7	Apple Macbook	Apple	600
8	Dell Computer	DELL	240
9	Dell Laptop	DELL	240
10	Apple Laptop	Apple	100
11	Apple Headphone	Apple	20
12	Sony Camera	Sony	240
13	Sony Headphone	Sony	50
14	Ascer Computer	Ascer	600
16	Borother Printer	Brother	200
17	Ascer Printer	Ascer	150
18	Brother Photocopy	Brother	150

IS NOT NULL Keyword Example in Video:

IS NOT NULL Keyword Example in Video:

[Note: We have created and inserted values into sql table in previous topic. For more details Click here.
OR
Execute the follow command in your sql query window for executing above sql select where statement]
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Create Table ItemDetails

(

ItemCode int,

ItemName varchar(30),

ManufactureCompany varchar(50),

ExpiredDate date,

ItemSearialNo varchar (30),

ItemCategory varchar(30),

ItemQuantity int,

ItemPrice float,

ProductCountry varchar(30),

ReceivedDate date,

ItemImage image

)

Insert into ItemDetails values('1','Samsung Mobile','Samsung','12-10-2024','12-01-2050','S12345','Mobile','500','240','Korea','12-10-2025')
Insert into ItemDetails values('2','Samsung Pro','Samsung','12-10-2024','12-01-2050','SP1234','Mobile','100','300','Korea','12-10-2025')
Insert into ItemDetails values('3','Samsung Headphone','Samsung','12-10-2023','12-01-2053','SH2345','Headphone','50','50','Korea','12-10-2025')
Insert into ItemDetails values('4','iPhone','iPone','12-01-2024','12-01-2049','iP12345','Mobile','1000','500','United Stat','12-10-2025')
Insert into ItemDetails values('5','Apple Mobile','Apple','12-11-2024','12-01-2049','A12345','Mobile','200','300','United Stat','12-10-2025')
Insert into ItemDetails values('6','Apple Computer','Apple','12-02-2024','12-01-2050','A12343','Computer','200','400','United Stat','12-10-2025')
Insert into ItemDetails values('7','Apple Macbook','Apple','12-11-2024','12-01-2050','AM2345','Macbook','50','600','United Stat','12-10-2025')
Insert into ItemDetails values('8','Dell Computer','DELL','12-09-2024','12-01-2050','D02345','Computer','200','240','United Stat','12-10-2025')
Insert into ItemDetails values('9','Dell Laptop','DELL','12-09-2024','12-01-2050','DL2345','Laptop','30','240','United Stat','12-10-2025')
Insert into ItemDetails values('10','Apple Laptop','Apple','12-08-2024','12-01-2050','AL2345','Laptop','500','100','United Stat','12-10-2025')
Insert into ItemDetails values('11','Apple Headphone','Apple','12-12-2024','12-01-2050','AH2345','Headphone','50','20','United Stat','12-10-2025')
Insert into ItemDetails values('12','Sony Camera','Sony','12-11-2024','12-11-2050','SN2345','Camera','200','240','Japan','12-11-2025')
Insert into ItemDetails values('13','Sony Headphone','Sony','12-09-2024','12-01-2050','SNH345','Headphone','500','50','Japan','12-11-2025')
Insert into ItemDetails values('14','Ascer Computer','Ascer','12-09-2024','12-07-2050','AC2345','Computer','100','600','China','12-10-2025')
Insert into ItemDetails values('16','Borother Printer','Brother','12-09-2024','12-01-2050','B12345','Printer','200','200','China','12-10-2025')

Insert into ItemDetails values('19','Brother Multi Printer','Brother',GETDATE(),'2050-10-10','BM243','Photocopy',null,null,'India',GETDATE())

Insert into ItemDetails (ItemCode,ItemName,ManufactureCompany,ProductDate,ExpiredDate,ItemSearialNo,ItemCategory,ItemQuantity,ItemPrice,ProductCountry,ReceivedDate) values('17','Ascer Printer','Ascer','12-09-2024','12-07-2050','AP2345','Printer','200','150','China','12-10-2025')
Insert into ItemDetails (ItemCode,ItemName,ManufactureCompany,ProductDate,ExpiredDate,ItemSearialNo,ItemCategory,ItemQuantity,ItemPrice,ProductCountry,ReceivedDate) values('18','Brother Photocopy','Brother','12-08-2024','12-07-2050','BP2345','Printer','20','150','China','12-10-2025')

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