Explanation:Operations that modify existing documents (i.e. updates) use the same query syntax as queries to select documents to update. 4. Which of the following method returns one document ?
A. findOne()
B. findOne1()
C. selectOne()
D. All of the mentioned
Answer:A
Explanation:Operations that modify existing documents (i.e. updates) use the same query syntax as queries to select documents to update. 4. Which of the following method returns one document ?
A. findOne() B. findOne1() C. selectOne() D. All of the mentioned