Which of the following about SQL is incorrect?
A. SQL is a language designed to query data in a relational database.
B. SQL is based on relational algebra and allows a user to query and update the database.
C. SQL is very user-friendly.
D. SQL uses SELECT statement to tell the query which columns (or attributes) of a table should be included in the query.

Question

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The Answer of Which of the following about SQL is incorrect?
A. SQL is a language designed to query data in a relational database.
B. SQL is based on relational algebra and allows a user to query and update the database.
C. SQL is very user-friendly.
D. SQL uses SELECT statement to tell the query which columns (or attributes) of a table should be included in the query.

Which of the Following About SQL Is Incorrect