Romber

Database tables

Periods

• Purpose
• Definition
• Constraints
• Load

Purpose

This table provides a list of valid periods. This information is static.

Definition

Source romber_periods_tbl.sql

create table romber_base.periods (
  alignment_interval_id         romber_base.measurement_unit_id         not null,
  duration_interval_id          romber_base.measurement_unit_id         not null,
  period_code                   romber_base.generic_code                not null,
  period_id                     romber_base.period_id                   not null
                                  default nextval ( 'romber_base.generic_id_seq' ),
  period_name                   romber_base.generic_name                not null );

Constraints

Source romber_periods_pk.sql

alter table romber_base.periods
  add constraint romber_periods_pk
    primary key ( period_id );

Source romber_periods_uk1.sql

alter table romber_base.periods
  add constraint romber_periods_uk1
    unique ( period_code );

Source romber_periods_fk1.sql

alter table romber_base.periods
  add constraint romber_periods_fk1
    foreign key ( alignment_interval_id )
    references romber_base.measurement_units ( measurement_unit_id );

Source romber_periods_fk2.sql

alter table romber_base.periods
  add constraint romber_periods_fk2
    foreign key ( duration_interval_id )
    references romber_base.measurement_units ( measurement_unit_id );

Load

Source romber_periods_load.sql

insert into romber_base.periods (
    alignment_interval_id,
    duration_interval_id,
    period_code,
    period_id,
    period_name )
  values (
    0,
    0,
    '',
    0,
    'Unknown' );