Constraints of several types

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Constraints of several types Constraints & Triggers Constraints of several types

Constraints Integrity Constraints Impose restrictions on allowable data, beyond those imposed by structure and types Non-null constraints Key constraints Attribute-based and tuple-based constraints General assertions Next video: Referential Integrity (foreign key) constraints

Constraints Constraints Demo Simple college admissions database College(cName,state,enrollment) Student(sID,sName,GPA,sizeHS) Apply(sID,cName,major,decision)