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Explain the two types of participation constraint.
Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates in at least one relationship in R.
Partial: if only some entities in E participate in relationships in R, the participation of entity set E in relationship R is said to be partial.
Atomicity : Either all functions are laid out or none are. Users could not have to think about the effect of incomplete operations. DBMS ensures this by undoing the functions
Project Description: This is going to be a School portal to handle each activities in school such as, School fees payment, online registration and every other payment, course re
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What will be create when a primary key if combined with a foreign key? A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that
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