T-sql stored procedure parameter null

You can also inline this sort of thing with and isnull Parameter3, Table1. ID2 , although the query optimiser won't get much more joy from it. You need to do param is null. Nothing can be "equal" to NULL. Hey Downvoter, if you have any feedback on how I can make this not-useful answer into a useful one, I'm all ears — billinkc. Weihui Guo Weihui Guo 2 2 silver badges 12 12 bronze badges.

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Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Could this be because the parameters to the stored procedure are nullable and the fields I'm setting aren't? I don't think any of your IF statements will fire if only these two values are not-null.

In short, I think you have a logic error. That way, when you run the sproc in MSSQL, you can look at the messages and see how far it's actually getting. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 7 years, 10 months ago.

Active 6 years, 4 months ago. Viewed k times. Int ; Cmd. Add new SqlParameter " Value", System. Parameters[" PropertyValueID"]. Parameters[" Value"]. Value; Cmd. Parameters[" UnitValue"]. Question s : Could this be because the parameters to the stored procedure are nullable and the fields I'm setting aren't? If not, what could it be? Improve this question. Just like you have the ability to use parameters with your SQL code you can also setup your stored procedures to accept one or more parameter values.

All examples use the AdventureWorks database. The idea is to create the stored procedure where the City is passed into the stored procedure so it can create dynamic results. This can be done as follows using a variable. If we run the below code it will return just the results for New York.

We could use this approach and keep updating the City variable, but there is a better way to do this by creating a stored procedure. In this example we will query the Person.

Address table from the AdventureWorks database, but instead of getting back all records we will limit it to just a particular city. This example assumes there will be an exact match on the City value that is passed. If you created the stored procedure and you want to recreate the stored procedure with the same name, you can delete it using the following before trying to create it again.

We can also do the same thing, but allow the users to give us a starting point to search the data. In both of the proceeding examples it assumes that a parameter value will always be passed.

If you try to execute the procedure without passing a parameter value you will get an error message such as the following:. In most cases it is always a good practice to pass in all parameter values, but sometimes it is not possible.