>>>If you would add a WHERE condition on the columns from the child table, it'll kill LEFT JOIN and it'll be like INNER JOIN.
>>>
>>>>Thanks Sergey. I thought that was correct. Something else was causing issues with the result.
>>
>>Thats correct I had done that.
>>
>>I have a table of parameters that I added to the select.
>
>I have a blog on this exact topic, take a look
>
>Why LEFT JOIN does not bring all records from the LEFT table

I'll take a look

Thanks Naomi

I think too often I end up with SQL developed by a process of suck it and see :-)