Which element in the following SQL query can be removed without preventing the query from running: SELECT * FROM `Uni_dataset.new_table` WHERE ID = 'Lawrence' ?

Prepare for the WGU BUS2770 D467 Exploring Data Exam. Dive into interactive quizzes and insightful flashcards, each featuring detailed explanations to optimize your learning experience, and get exam-ready!

Multiple Choice

Which element in the following SQL query can be removed without preventing the query from running: SELECT * FROM `Uni_dataset.new_table` WHERE ID = 'Lawrence' ?

Identifying when identifiers can be unquoted. Backticks are used in MySQL to escape names that might contain special characters or conflict with reserved words, or to treat a dotted name as a single identifier. In this case, Uni_dataset.new_table is a standard database.table reference. If such a database and table exist, you can write it without quotes and the query will still run. So removing the backticks around the table reference won’t prevent execution. The other parts—selecting all columns with an asterisk, the semicolon terminator, and the WHERE clause—either affect results or are optional in different contexts, but they don’t address the ability to run the query as written.

Identifying when identifiers can be unquoted. Backticks are used in MySQL to escape names that might contain special characters or conflict with reserved words, or to treat a dotted name as a single identifier. In this case, Uni_dataset.new_table is a standard database.table reference. If such a database and table exist, you can write it without quotes and the query will still run. So removing the backticks around the table reference won’t prevent execution. The other parts—selecting all columns with an asterisk, the semicolon terminator, and the WHERE clause—either affect results or are optional in different contexts, but they don’t address the ability to run the query as written.

More practice questions