SSRS Return Data from One Dataset where it does not exist in another

Hi, I am using Report Builder 3 on SQL 2008 and am wondering if it is possible to return values in one dataset based on whether the value is present in another dataset.

For example, my first dataset is the one my Tablix is based on and has a list of property references.

My second dataset just pulls through a list of property references that have a certain charge against them.

I don't want to see the properties in my first dataset if they exist in the second dataset?

Many thanks in Advance.
deborahhowson00Asked:
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deborahhowson00Connect With a Mentor Author Commented:
The trouble was that I couldn't start using SQL as I'm training 'non IT' users in how to create reports so had to do it using the GUI without using SQL statements that haven't been built in the Query Designer.  I have found the answer to my problem by filtering the TABLIX where the Property Reference <> (LOOKUP the Property Ref from my second dataset).  

You can't filter a dataset based on another dataset, but you can filter a tablix based on a lookup from another dataset which I didn't realise at the time.

I initially tried using a parameter to select the 'default values' (ie property refs) from my second dataset and then basing the first dataset on that parameter but the report kept timing out.  This method has worked for other smaller reports though!

Thanks anyway, cheers.
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Tony303Commented:
Does the Query feeding the first dataset have the field that determines that a charge is against the property?

I would just filter your dataset that feeds the Tablix.

OR You could change the first query to include a nested query that excludes the properties with a charge.

Like this.

SELECT *
FROM yourfirstdatasetTable
WHERE ID NOT IN  (SELECT ID FROM yourseconddatasetTable WHERE ChargeOnProperty = 1)

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deborahhowson00Author Commented:
I figured out how to do it myself.
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