|Subject:||Merging two tables with selection|
|Posted by:||Bruce Stradling (bstradli…@cox.net)|
|Date:||Wed, 23 Aug 2006|
I would like to have two tables. One I call SystemPropertyTypeTable which
contains the defaults and the other UserPropertyTypeTable. Each has 3
fields. PropertyType, Description, Status.
The idea here is to allow a user to change his/her defaults or to add a new
Property Type without messing with the system default list.
I would like to Merge these two tables using the following logic.
The SystemPropertyTypeTable any records that have "ACTIVE" for the status.
The UserPropertyTypeTable all records.
Group by Name and remove any duplicates.
if the UserPropertyTypeTable has INACTIVE then Throw away the Active Record
from the SystemPropertyTypeTable and keep the INACTIVE record.
Here is my code so far.
SELECT T.PropertyType, T.Status
FROM [SELECT PropertyType,Status
FROM SystemPropertyTypeTable Where Status='ACTIVE'
FROM UserPropertyTypeTable]. AS T
GROUP BY T.PropertyType, T.Status
here is the resultset
ShowAllRecordsMerged PropertyType Status
MAINTENANCE SHOP ACTIVE
MAINTENANCE STORAGE AREA ACTIVE
PARKING SPACE ACTIVE
PARKING SPACE INACTIVE
STORAGE AREA ACTIVE
So looking at this I would still like to remove any duplicates leaving the
INACTIVE ones which would be the first APARTMENT record and the first
PARKING SPACE record. Also it would be nice to add the description back into
this as well.
Any help anyone can be here would be wonderful.
Thanks in advance.