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Tue, Nov 28, 2017 11:19 pm

Find entries in one table but not a second table in a database

I have an SQLite database stored on my MacBook Pro laptop that I use to track work requests. The database file is named CRQ.db, since it tracks work done under a Change Request (CRQ). Within that database are several tables two of which are "Equipment" and "Device". For every CRQ that I need to deal with, I store records with the CRQ number in a "CRQ" column and an identifier for each piece of equipment affected by work done under that CRQ in a "Device" column. information on equipment that is affected by the CRQ in the Equipment table. I have another table named "Device" that holds details for each device, including the manufacturer and model number as well as the physical location of the device. The information in the "Description" column in the "Device" table matches the "Device" name in the "Equipment" table. The two tables have the following structure:

Equipment
NameType
CRQText
DeviceText
ProjectText
NotesText
Device
NameType
DescriptionText Unique
ManufacturerText
ModelText
SiteText
BuildingText
RoomText
NotesText

Equipment.Device = Device.Description

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