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querying with multiple ids

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querying with multiple ids MS SQL Development forum discussing administration, MS SQL queries, and other MS SQL-related topics. SQL Server is Microsoft's enterprise database engine.

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  #1  
Old February 23rd, 2004, 04:46 AM
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Question querying with multiple ids
Im pretty new to SQL and any help would be greatly appreciated

I have three tables, a property table, facility table and propertyFacilities table.

propertyFacilities table
--------------
facility_id
property_id

facility table
--------------
facility_id
facility_name

property_table
--------------
property_id
property_name
etc etc

A property can have quite a few facilities. In my statement i need to return the property which has all of the facilities that have been selected.

How can I do this?
Dave
Last edited by dast : February 23rd, 2004 at 05:03 AM.
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  #2  
Old February 23rd, 2004, 06:39 AM
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Code:
select P.property_id
     , P.property_name
  from propertyFacilities PF
inner
  join property_table P
    on PF.property_id = P.property_id
group
    by P.property_id
     , P.property_name
having count(*) = 
       ( select count(*)
           from facility )
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Old February 23rd, 2004, 07:55 AM
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thankyou very much for your reply

but whereabouts in the SQL would i pass through the id's? i have about 20 facility checkboxes on the previous page so based on the ones checked i need to find the property that matches.
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Old February 23rd, 2004, 08:13 AM
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finding the facilites matched, which may be fewer than all of them, is a slightly different query from finding properties with all facilities
Code:
select P.property_id
     , P.property_name
  from propertyFacilities PF
inner
  join property_table P
    on PF.property_id = P.property_id
 where PF.facility_id 
       in ( 3, 7, 14, 52 )  -- list the facility ids
group
    by P.property_id
     , P.property_name
having count(*) = 4         -- the number listed
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Old February 23rd, 2004, 08:17 AM
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cheers mate - just waiting for SQL enterprise manager to install, i'll let you know how i get on!!
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Old February 23rd, 2004, 11:29 AM
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works like a dream, thanks a lot mate
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