Final answer:
The incorrect statement about SQL is that the PIVOT function is used to insert data; in fact, it is used to transform data. The INSERT INTO statement is the correct SQL command to insert data.
The correct option is C.
Step-by-step explanation:
The statement about SQL that is incorrect is: C) SQL uses the PIVOT function to insert data. The PIVOT function in SQL is actually used for transforming rows into columns to provide a more readable result of data aggregation based on a particular category. To insert data into a database, SQL uses the INSERT INTO statement. To provide further clarification:
A) SQL is a language designed to query data in a relational database. This is a correct statement as SQL stands for Structured Query Language and is used for managing and querying data in relational databases.
B) SQL is based on relational algebra and allows a user to query and update the database. This is also correct; SQL operations are based on relational algebra, which is a theoretical foundation for databases that allow certain operations to be performed on the data.
C) SQL uses the PIVOT function to insert data. This is incorrect; the PIVOT function is used for data transformation, not data insertion.
D) SQL uses the SELECT statement to tell the query which columns (or attributes) of a table should be included in the query. This is correct as the SELECT statement specifies the fields from the database that need to be displayed in the query's result set.
The correct option is C.