Final answer:
True, the NATURAL JOIN keyword in SQL links two tables based on commonly named and defined columns without explicitly specifying column names in the ON clause.
Step-by-step explanation:
The statement that NATURAL JOIN keywords can be used to link two tables that have a commonly named and defined column is A. True. A NATURAL JOIN in SQL is a type of join that automatically creates an inner join between two tables based on all the columns in both tables that have the same name and compatible data types. When using NATURAL JOIN, you do not need to specify the column names explicitly in the ON clause. It is important, however, to ensure that the columns meant to be joined have the same name and data type in both tables to prevent any unexpected results or errors.
The NATURAL JOIN keywords can be used to link two tables that have a commonly named and defined column.This is true. The NATURAL JOIN operation combines rows from two tables based on a column that has the same name and data type in both tables. It automatically matches and retrieves the rows with the same values in the common column, producing a result set with only the matching rows.For example, if we have two tables 'students' and 'grades,' both of which have a column 'student_id,' we can use NATURAL JOIN to combine the two tables based on the matching 'student_id' values.