Examlex
A referential integrity constraint is used to make sure the values of a foreign key match a valid value of a primary key.
Heroin Use
The practice of consuming heroin, a highly addictive opioid drug, often leading to physical dependence and health complications.
Learning
Learning is the process of acquiring knowledge or skills through study, experience, or being taught.
Permanent Addiction
A chronic, relapsing disorder characterized by compulsive drug seeking, continued use despite harmful consequences, and long-lasting changes in the brain.
Psychoactive Drugs
Substances that, when taken, alter a person's perceptions, mood, or consciousness.
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