17 lines
298 B
MySQL
17 lines
298 B
MySQL
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BEGIN;
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CREATE FUNCTION is_name(value TEXT) RETURNS BOOLEAN LANGUAGE plpgsql AS $$
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BEGIN
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RETURN value = btrim(value) AND length(value) > 0;
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END;
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$$;
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CREATE FUNCTION is_language_code(value VARCHAR) RETURNS BOOLEAN LANGUAGE plpgsql
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AS $$
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BEGIN
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RETURN value ~ '^[a-z]{2}$';
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END;
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$$;
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COMMIT;
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