10 Questions
What operation is performed by the 'Select' statement in SQL?
Retrieve data from a database
Which SQL operation is used to insert data into a table?
Insert
What does the 'Commit' statement do in SQL?
Save the transaction on the database
Which statement is used to give user access privileges to a database in SQL?
Grant
What is the purpose of the 'Explain plan' statement in SQL?
Explain data
In SQL, what operation does the 'Rollback' statement perform?
Restore the database to its original state since the last Commit
'Lock table' statement in SQL is primarily used for what purpose?
Control concurrency
'Revoke' statement in SQL is typically used for:
Taking back permissions from users
'Merge' operation in SQL performs which type of operation?
Insert or update operations
'Call' statement in SQL is primarily used for what purpose?
'Calling a structured query language or Java subprogram'
Test your knowledge on 1-tier and 2-tier database architectures. Understand the differences between the two and learn how applications interact with databases at different levels of architecture.
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