Question 388 A super key for an entity consists of A one attribute only B At least two attributes C at most two attributes D one […]

Question 390 Aggregate functions in SQL are A GREATEST, LEAST and ABS B SUM, COUNT AND AVG C UPPER, LOWER AND LENGTH D SQRT, POWER AND […]

Question 391 A 3NF table which does not have multiple overlapping candidate keys is said to be in ————- A 1NF B 2NF C 4NF D […]

Question 392 Consider a schedule generated by the execution of several SQL transactions, each of which has READ ONLY access-mode. Which of the following is guaranteed? […]