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Andy GreenFlag for United Kingdom of Great Britain and Northern Ireland

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How best to achived adding ad hoc rows to a table

Hi All

I have a small section of an app that allows users to add parts to a job, so I have several tables a Job Table, a Part Table and a Job_Part table that links jobs to parts.

There is a requirement to add ad hoc items not in the parts table like consumables for example, and I can't figure out the best way to do it. The data has to end up in the Job_Part table, and I don't really want to add to the Part table and have to generate a part No.

The row would be effectively orphaned in the part_Job table. The app is not big so some  leeway on strict performance design

Does anyone have an idea on how to best achieve this?

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Pawan Kumar
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You can use T-SQL for that. There are multiple ways for this like IF EXISTS, NOT EXISTS , LEFT JOIN etc..
Could you please show some sample data and the expected output you need.
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Andy Green
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This was how I achieved this in the end. No other suitable replies.