16f6c0aecf
Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in.
5 lines
236 B
Plaintext
5 lines
236 B
Plaintext
== Why is this an issue?
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Using ``++UNION++`` in SQL ``++SELECT++`` statements should be avoided because it makes queries complex. Complex queries are generally not performant and are difficult to understand and therefore to maintain.
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