# Unit of Measurement Conversion

USE fetchmetrics;

SELECT CONCAT('WARNING: Table ', TABLE_SCHEMA, '.', TABLE_NAME, ' already exists.') AS msg_warning 
FROM INFORMATION_SCHEMA.TABLES 
WHERE 
        TABLE_SCHEMA = 'fetchmetrics' 
    AND TABLE_NAME = 'DOG_Unit_Measurement_Conversion'
;

CREATE TABLE IF NOT EXISTS DOG_Unit_Measurement_Conversion (
      id_conversion INT NOT NULL PRIMARY KEY AUTO_INCREMENT
    , id_unit_derived INT NOT NULL
    , id_unit_base INT NOT NULL
    , multiplier_unit_base FLOAT NOT NULL
    , increment_unit_base FLOAT NOT NULL
    , apply_multiplier_before_increment BIT NOT NULL DEFAULT 1
    , active BIT NOT NULL DEFAULT 1
    , display_order INT NOT NULL
);