Muscle atrophy, or muscle wasting, results from loss of muscle tissue. Little or no physical exercise and a sedentary lifestyle are common causes of muscle atrophy, in this case called disuse atrophy.
PRIMARY KEY Constraints. A table typically has a column or combination of columns that contain values that uniquely identify each row in the table. This column, or columns, is called the primary key (PK) of the table and enforces the entity integrity of the table.
Unless a primary/unique key constraint is enabled on the parent key column, Oracle does not allow enabling a foreign key constraint on a child key column. Primary/unique keys on the parent key column will not allow duplicate values. I created primary key index on the parent table TEMP_JP1(COL1).