Romber

Database tables

Measurement Units

• Purpose
• Definition
• Constraints
• Load

Purpose

This table provides a list of valid measurement units. This information is static.

Definition

Source romber_measurement_units_tbl.sql

create table romber_base.measurement_units (
  measurement_category_id       romber_base.measurement_category_id     not null,
  measurement_unit_code         romber_base.generic_code                not null,
  measurement_unit_id           romber_base.measurement_unit_id         not null
                                  default nextval ( 'romber_base.generic_id_seq' ),
  measurement_unit_name         romber_base.generic_name                not null,
  measurement_unit_symbol       romber_base.generic_code                not null );

Constraints

Source romber_measurement_units_pk.sql

alter table romber_base.measurement_units
  add constraint romber_measurement_units_pk
    primary key ( measurement_unit_id );

Source romber_measurement_units_uk1.sql

alter table romber_base.measurement_units
  add constraint romber_measurement_units_uk1
    unique ( measurement_unit_code );

Source romber_measurement_units_uk2.sql

alter table romber_base.measurement_units
  add constraint romber_measurement_units_uk2
    unique ( measurement_unit_symbol );

Source romber_measurement_units_fk1.sql

alter table romber_base.measurement_units
  add constraint romber_measurement_units_fk1
    foreign key ( measurement_unit_id )
    references romber_meta.objects ( meta_object_id );

Source romber_measurement_units_fk2.sql

alter table romber_base.measurement_units
  add constraint romber_measurement_units_fk2
    foreign key ( measurement_category_id )
    references romber_base.measurement_categories ( measurement_category_id );

Load

Source romber_measurement_units_load.sql

insert into romber_base.measurement_units (
    measurement_category_id,
    measurement_unit_code,
    measurement_unit_id,
    measurement_unit_name,
    measurement_unit_symbol )
  values (
    0,
    '',
    0,
    'Unknown',
    '' );