Question
What is 'query optimization' in DBMS?
More IT DBMS Questions
- Which of the following is an example of a NoSQL database?
- Which normal form in relational database design specifically eliminates transitive dependency of non-key attributes on the primary key?
- In a database with a foreign key constraint defined using "ON DELETE CASCADE," what happens when a row in the parent (referenced) table is deleted?
- Indexing in DBMS improves:
- Which property of a transaction ensures that either all operations within the transaction are completed successfully, or none of them are?
- Which SQL statement is used to remove all rows from a table without logging individual row deletions?
- What is a 'transaction' in DBMS and what does 'COMMIT' do?
- Given a table Orders(OrderID, CustomerID, Amount), which SQL statement correctly returns the CustomerID of every customer who has placed more than 3 orders...
- In two-phase locking, a transaction releases its locks:
- A system is in a safe state when:
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