Select Null values from SQL server

Question

1.00/5 (1 vote)

See more:

how do I select null values from my SQL database?

here is my code:

C#

SQcon.Open();
 SQcmd = new SqlCommand("SELECT COUNT(*) as 'count' FROM dbo.INVENTORY WHERE INV_NO =", SQcon);

however its giving me an incorrect syntax.
I need to get INV_NO with null values.

Posted 4-Mar-14 13:54pm

1 solution

Add a Solution

Treat my content as plain text, not as HTML

…

Sign in to your account

Download, Vote, Comment, Publish.

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

ZurdoDev · Accepted Answer · 2014-03-04T14:08:00

You have to use the keyword IS since null cannot be compared to using =

SQL

SELECT COUNT(*) as 'count' FROM dbo.INVENTORY WHERE INV_NO IS NULL

Posted 4-Mar-14 14:08pm

Comments

JB0301 4-Mar-14 20:27pm

Thanks!

ZurdoDev 4-Mar-14 21:00pm

You're welcome.