Cannot use Is Null in record selection

Question

I cannot use Is Null in a record selection expert.  I use the same wording in excel and SQL QA with no issues.
I need all records that are not '5 - Project' including Nulls.  Once I put the criteria of '5 - Project' it excludes the null records.
{@dtCompleted} = {?Completed_Date_ Range} and
{TASKS.TYPE} = "Information Technology" and
{TASKS.PRIORITY} <>'5 - Project'
This does not give me the nulls for the Priority field.
The one I use in QA or in Excel is
{@dtCompleted} = {?Completed_Date_ Range} and
{TASKS.TYPE} = "Information Technology" and
({TASKS.PRIORITY} <>'5 - Project' or {TASKS.PRIORITY} is null)
This gives me the "The ) is missing" error.  Help!

Answer 1

(isnull({TASKS.PRIORITY}) or {TASKS.PRIORITY} <>'5 - Project')
and
@dtCompleted} = {?Completed_Date_ Range} and
{TASKS.TYPE} = "Information Technology";
Make sure that under File | Report Options or under File | Options the the box next to "Convert Database Null values to default' is NOT checked.
{TASKS.PRIORITY} NOT EQUAL TO '5 - Project'.  Use the Greater than and less than symbols.
Edited by: Sanjay Kodidine on Feb 27, 2009 8:49 PM