What is the term for a combination of identifiers, operators, constants and functions that evaluates to a single value?

Study for the SQL Basics Test. Improve your knowledge with multiple choice questions and detailed explanations. Prepare effectively to master SQL concepts!

Multiple Choice

What is the term for a combination of identifiers, operators, constants and functions that evaluates to a single value?

Explanation:
An expression in SQL is a combination of identifiers, operators, constants and functions that evaluates to a single value. This lets you compute values on the fly, such as in the SELECT list, WHERE clause, or ORDER BY. For example, price * quantity yields a numeric total for each row, or UPPER(name) returns the name in uppercase. A clause is a part of a statement like the WHERE clause; a constraint defines data rules (like NOT NULL or FOREIGN KEY); a block groups statements together. So the term that matches the description is an expression.

An expression in SQL is a combination of identifiers, operators, constants and functions that evaluates to a single value. This lets you compute values on the fly, such as in the SELECT list, WHERE clause, or ORDER BY. For example, price * quantity yields a numeric total for each row, or UPPER(name) returns the name in uppercase. A clause is a part of a statement like the WHERE clause; a constraint defines data rules (like NOT NULL or FOREIGN KEY); a block groups statements together. So the term that matches the description is an expression.

More practice questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy