Question
Select the number from among the given options that can
replace the question mark (?) in the following series. 45, 80, ?, 171, 227Solution
45 + 35 = 80
80 + 42 = 122
122 + 49 = 171
171 + 56 = 227
Which of the following commands are used to put a restriction on the number of rows returned from a query?
Distributed transactions typically use which protocol for atomicity?
Which type of join returns only matching records from both tables?
A `FOREIGN KEY` constraint is used to:
In two-phase locking, a transaction releases its locks:
Bitmap indexes are most efficient when:
What is a primary key in a relational database?
Which normal form eliminates repeating groups by putting them into separate tables and connecting them through foreign keys?
In a relational schema, which normal form eliminates transitive dependencies (i.e., non-prime attribute depends on another non-prime attribute)?
A transaction that reads a value then later sees a different value because another transaction updated and committed in between experiences which anomaly?