ORCLPDB1
Database
Tables
(current)
Columns
Constraints
Relationships
Orphan Tables
Anomalies
Routines
COUNTRIES
0
rows
Columns
Column
Type
Size
Nulls
Auto
Default
Children
Parents
Comments
COUNTRY_ID
CHAR
2
null
LOCATIONS
.COUNTRY_ID
FK_LOCATIONS_COUNTRIES
C
COUNTRY_NAME
VARCHAR2
40
null
REGION_ID
NUMBER
0
√
null
REGIONS
.REGION_ID
FK_COUNTRIES_REGIONS
C
Indexes
Constraint Name
Type
Sort
Column(s)
SYS_C007550
Primary key
Asc
COUNTRY_ID
Relationships
Close relationships within degrees of separation
One
Two degrees