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12 lines
216 B
MySQL
12 lines
216 B
MySQL
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CREATE OR REPLACE FUNCTION isnumeric(text) RETURNS BOOLEAN AS $$
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DECLARE x NUMERIC;
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BEGIN
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x = $1::NUMERIC;
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RETURN TRUE;
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EXCEPTION WHEN others THEN
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RETURN FALSE;
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END;
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$$
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STRICT
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LANGUAGE plpgsql IMMUTABLE;
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