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write true or false 1)It is possible to store null value directly in MySQL. 2)In Relational Algebra,...

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Programming

write true or false

1)It is possible to store null value directly in MySQL.

2)In Relational Algebra, the UNION operator is a unaryoperator.

3)n SQL, it is possible to insert multiple rows into a tableusing a single INSERT statement.

4)R has 5 rows and S has 6 rows. It is possible for R |x| S tohave 30 rows.

5)R has 5 rows and S has 6 rows. It is possible for R |x| S tohave 21 rows.

6)Relations R and S have four and five tuples respectively. Itis not possible that R |x| S to have 0 tuple.

7)R has 4 rows and S has 5 rows. It is possible for R |x| S tohave 19 rows.

8)The query design wizard in Microsoft’s Access is based onRelational Calculus.

Answer & Explanation Solved by verified expert
4.4 Ratings (853 Votes)
1 False If there is a NOT NULL constraint in the column while it is created then you cannot store NULL values But if there is no such    See Answer
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