4.3 HR Sample Schema Table Descriptions

Consider the columns of each table of HR sample schema.

• Table HR.COUNTRIES

• Table HR.DEPARTMENTS

• Table HR.EMPLOYEES

• Table HR.JOBS

• Table HR.JOB_HISTORY

• Table HR.LOCATIONS

• Table HR.REGIONS

4.3.1 Table HR.COUNTRIES

Table 4-3 HR.COUNTRIES Table Description

Column Name	Null?	Type
COUNTRY_ID	NOT NULL	CHAR(2)
COUNTRY_NAME		VARCHAR2(40)
REGION_ID		NUMBER

4.3.2 Table HR.DEPARTMENTS

Table 4-4 HR.DEPARTMENTS Table Description

Column Name	Null?	Type
DEPARTMENT_ID	NOT NULL	NUMBER(4)
DEPARTMENT_NAME	NOT NULL	VARCHAR2(30)
MANAGER_ID		NUMBER(6)
LOCATION_ID		NUMBER(4)

4.3.3 Table HR.EMPLOYEES

Table 4-5 HR.EMPLOYEES Table Description

Column Name	Null?	Type
EMPLOYEE_ID	NOT NULL	NUMBER(6)
FIRST_NAME		VARCHAR2(20)
LAST_NAME	NOT NULL	VARCHAR2(25)
EMAIL	NOT NULL	VARCHAR2(20)
PHONE_NUMBER		VARCHAR2(20)
HIRE_DATE	NOT NULL	DATE
JOB_ID	NOT NULL	VARCHAR2(10)
SALARY		NUMBER(8,2)
COMMISSION_PCT		NUMBER(2,2)
MANAGER_ID		NUMBER(6)
DEPARTMENT_ID		NUMBER(4)

4.3.4 Table HR.JOBS

Table 4-6 HR.JOBS Table Description

Column Name	Null?	Type
JOB_ID	NOT NULL	VARCHAR2(10)
JOB_TITLE	NOT NULL	VARCHAR2(35)
MIN_SALARY		NUMBER(6)
MAX_SALARY		NUMBER(6)

4.3.5 Table HR.JOB_HISTORY

Table 4-7 HR.JOB_HISTORY Table Description

Column Name	Null?	Type
EMPLOYEE_ID	NOT NULL	NUMBER(6)
START_DATE	NOT NULL	DATE
END_DATE	NOT NULL	DATE
JOB_ID	NOT NULL	VARCHAR2(10)
DEPARTMENT_ID		NUMBER(4)

4.3.6 Table HR.LOCATIONS

Table 4-8 HR.LOCATIONS Table Description

Column Name	Null?	Type
LOCATION_ID	NOT NULL	NUMBER(4)
STREET_ADDRESS		VARCHAR2(40)
POSTAL_CODE		VARCHAR2(12)
CITY	NOT NULL	VARCHAR2(30)
STATE_PROVINCE		VARCHAR2(25)
COUNTRY_ID		CHAR(2)

4.3.7 Table HR.REGIONS

Table 4-9 HR.REGIONS Table Description

Column Name	Null?	Type
REGION_ID	NOT NULL	NUMBER
REGION_NAME		VARCHAR2(25)