Question
Select the most appropriate option to fill in the
blank. We ________Rohit for the last two months.Solution
This indicates that the action of seeing Rohit has not occurred in the past two months.
Query optimization heuristics often include:
Which system call is used to create a new process in UNIX/Linux?
Indexes improve query performance but can degrade performance of:
Which type of relationship exists when a record in one table can relate to multiple records in another table, and vice versa?
A relation is in 2NF if:
Which key uniquely identifies a record in a table?
What is a table joined with itself called?
Which of the following schedules is serializable?
ACID properties in DBMS ensure:
Which SQL clause is used to group rows based on one or more columns?