Question

a) Write two examples of DBMS software
b) What is meant by NULL value in MySQL?
(c) Table Club has 4 rows and 3 columns. Table Member' has 2 rows and 5 columns What will
Cart of them? ?​

Answer 1

Answer:

Explanation:

Two examples of DML commands are:

SELECT, INSER

MySQL

Oracle

The NULL value can be surprising until you get used to it. Conceptually, NULL means “a missing unknown value” and it is treated somewhat differently from other values. ... In MySQL, 0 or NULL means false and anything else means true.

Degree : columns : 3 + 5 = 8 Cardinality : rows : 4 * 2 = 8