The SQL operator that checks for the absence of a value is the _______ operator.

Write an SQL query to list the customer ID, customer last name, number of guests, and meal cost for all were served by a server with last name Jones and who left a tip of less than 5.00.

The primary key in a table must always be listed first.

Duplicate rows in an SQL query may be eliminated by adding the word _______ .

The set of possible values of a field is called the _______ of the field.

A foreign key represents a one-to-many relationship between tables.

SUM can only be applied to numeric fields.

COUNT applies only to numeric fields

What is the chemical reagent (if any) that is used for Test 7?

For Test 7, what do you conclude about Organism B’s ability to convert the amino acid tryptophan into pyruvate?