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Look at the below SQL create command. Consider that there is only one profession which is named as “Student”. Which of the following statements is wrong about this SQL create statement?CREATE TABLE USERS(NAME CHAR(20),AGE INTEGER,PROFESSION VARCHAR(30))Question 13Select one:a.Stored data for the NAME column requires more database space than stored data for the PROFESSION column.b.Table name is USERS.c.There are three columns in this table.d.CHAR (7) can also be used for the PROFESSION column.

Question

Look at the below SQL create command. Consider that there is only one profession which is named as “Student”. Which of the following statements is wrong about this SQL create statement?CREATE TABLE USERS(NAME CHAR(20),AGE INTEGER,PROFESSION VARCHAR(30))Question 13Select one:a.Stored data for the NAME column requires more database space than stored data for the PROFESSION column.b.Table name is USERS.c.There are three columns in this table.d.CHAR (7) can also be used for the PROFESSION column.

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Solution

The incorrect statement is:

a. Stored data for the NAME column requires more database space than stored data for the PROFESSION column.

Explanation: The NAME column is defined as CHAR(20), which means it will always use 20 characters worth of storage space, regardless of the actual length of the name. On the other hand, the PROFESSION column is defined as VARCHAR(30), which means it will use only as much storage space as the length of the actual data, up to a maximum of 30 characters. Since the profession is stated to be "Student" (7 characters), it will use less space than the NAME column.

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