I am looking for the cleanest syntax to use to do the following:
I am using a CASE statement for this but want a clean way to handle it:
I need to concat the 4 fields together based on this logic:
FIELD1 [space] FIELD2 [space] FIELD3 [space] FIELD4 [space]
- If any of the fields are NULL or EQUAL TO 'N/A' I want to skip that field in the concatenation. So need to handle the null value
- If ALL 4 fields are NULL or EQUAL TO 'N/A' I want to skip the concat completely and use the value 'Not Available'
Composite queries are used to retrieve the results from joining multiple queries after applying any filters. UNION, INTERSECT, MINUS, and UNION ALL are some of the operators used to get certain desired results.
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