Question: Describe a MUST constraint. Give an example other than one in this chapter. AGENT (AgentID, {other attributes} CLIENT (ClientID, AgentID{other attributes} PROPERTY (PropertyID, {other attributes}

Describe a MUST constraint. Give an example other than one in this chapter.

AGENT (AgentID, {other attributes}
CLIENT (ClientID, AgentID{other attributes}
PROPERTY (PropertyID, {other attributes}
AGENT_CLIENT_PROPERTY (AgentID, ClientID, PropertyID, {other attributes}

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