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Simulate UNION with BLOBs
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Simulate UNION with BLOBs

TL;DR: If you have BLOBs, you need to use UNION ALL. If you use UNION ALL, you need to partition off a criterion and select the first row. The other day I had to figure out how UNION works in Oracle, because we're retrofitting an application with
Nov 21, 2016 2 min read
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