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.
49 lines
952 B
Plaintext
49 lines
952 B
Plaintext
== Why is this an issue?
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Declaring a ``++NUMBER++`` variable without any precision wastes memory because Oracle supports up to 38 decimal digits by default (or the maximum supported by your system, whichever is less). If you don't need that large a value, you should specify whatever matches your needs. This will save memory and provide extra integrity checking on input.
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This rule also applies to some ``++NUMBER++`` subtypes as well: ``++NUMERIC++``, ``++DEC++``, and ``++DECIMAL++``.
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=== Noncompliant code example
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[source,sql]
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----
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DECLARE
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var1 NUMBER; -- Noncompliant
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var2 NUMERIC; -- Noncompliant
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BEGIN
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NULL;
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END;
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/
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----
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=== Compliant solution
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[source,sql]
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----
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DECLARE
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var1 NUMBER(9,2);
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var2 NUMERIC(4,0);
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BEGIN
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NULL;
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END;
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/
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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=== Message
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Specify the precision for this variable.
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endif::env-github,rspecator-view[]
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