null value for int datatype in database

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ASP.NET

How we can pass null value for int, decimal datatype in database (sql server) in asp.net C#

Posted 6-Dec-12 0:14am

Sumit_Kumar_Sinha

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4 solutions

Solution 4

insert into table_Name values(Null,Null.............)
Just pass null text that it.

I have try on sql server 2008R2.

Posted 8-Dec-12 8:46am

Patel Shailendra

Solution 1

i think we can declare some string as NULL and v can pass that value to sql server....

string value="NULL";

it ll store in database as like NULL only...

I'm Not sure....
Try like this...

Posted 6-Dec-12 0:23am

Deenuji

Comments

Sumit_Kumar_Sinha 6-Dec-12 6:28am

TotalQty int (in database)...........but data inserting time i m not putting the Qty value...........so i want to put null in database if qty textbox is empty

Deenuji 6-Dec-12 6:33am

so do tick allow null in datatype declaration in that table....

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AnkitGoel.com · Accepted Answer · 2012-12-06T00:37:00

Solution 2

create a parameterized query and try passing 'System.DBNull.Value' to that column.

Posted 6-Dec-12 0:37am

AnkitGoel.com

Updated 6-Dec-12 0:38am

v3

Dominic Abraham · Accepted Answer · 2012-12-06T00:45:00

Solution 3

Hi Please try this

C#

//ID -> INT - NOT NULL
//SL_NO -> INT ->NULL
//NAME -> NVARCHAR(50)
string yourQuery = string.Format(@"INSERT INTO STUDENTMASTER(ID,SL_NO,NAME)VALUES({0},NULL,'{1}')",1,"name");

Posted 6-Dec-12 0:45am

Dominic Abraham