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I have a stored procedure (see below) that take out all articles based on @ParentId. It works good, but some articles has ParentId = NULL in the database. When @ParentID = Null or nothing, it dont return the articles with parentId = NULL. What is wrong, how can I get the articles with ParentId = NULL?<br />
<br />
ALTER PROCEDURE [dbo].[spGetContentsForTre<wbr />eview]<br />
(<br />
&nbsp; &nbsp; @ParentId int = null<br />
)<br />
AS<br />
<br />
SELECT Id, [Name] &nbsp;FROM tblContent &nbsp;WHERE ParentId=@ParentId<br />

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I have a stored procedure (see below) that take out all articles based on @ParentId. It works good, but some articles has ParentId = NULL in the database. When @ParentID = Null or nothing, it dont return the articles with parentId = NULL. What is wrong, how can I get the articles with ParentId = NULL?

ALTER PROCEDURE [dbo].[spGetContentsForTreeview]
(
    @ParentId int = null
)
AS

SELECT Id, [Name]  FROM tblContent  WHERE ParentId=@ParentId


Howto select articles with ParentId = NULL?

Microsoft SQL Server 2005 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. It includes support for managing XML data and allows a database server to be exposed over web services using Tabular Data Stream (TDS) packets encapsulated within SOAP (protocol) requests.