Question

Which line in the following SQL statement raises an error?

1. SELECT name, title
2. FROM books NATURAL JOIN publisher
3. WHERE category = 'FITNESS'
4. OR
5. = 4;
A.line 1
B.line 2
C.line 3
D.line 4
E.line 5

Answer 1

The error is on line 5 of the SQL statement due to the equals sign not being associated with a field or value, making it an incomplete boolean expression.

Step-by-step explanation:

The error in the SQL statement is raised in line 5. This line stands alone with an equals sign (=) but does not specify a field or a value it should be compared to. In a proper SQL statement, each condition that follows an OR or an AND needs to be a complete boolean expression, which typically includes a column name, a comparison operator, and a value or another column name.

The line line 5 in the SQL statement raises an error. The error is caused by the missing attribute or column name after the 'OR' operator. In this case, there should be an attribute name or column name to compare with the value 4. The correct version of the line would be something like column_name = 4.