Question
Which of the following correctly describes a 'primary key' in a relational database?
More IT DBMS Questions
- Which of the following matches the definition given below: It is an artificial key that aims to uniquely identify each record.
- In an E-R Diagram, entities are typically represented by:
- What is a page fault?
- A "diamond" shape in an E-R Diagram typically represents a:
- Which system call is used to create a new process in UNIX/Linux?
- Which SQL keyword is used to combine the result sets of two or more SELECT statements, automatically removing duplicate rows from the combined result?
- Which stage involves evaluating the project's practicality, cost, and resources before proceeding further?
- Which deadlock prevention scheme allows older transactions to preempt younger ones?
- Phantom Reads occur when:
- What is a 'transaction' in DBMS and what does 'COMMIT' do?
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