The SQL Keyword IS NULL Can Be Used to ________

question 89

Multiple Choice

The SQL keyword IS NULL can be used to ________.

• A)count the number of columns in a table
• B)count the number of rows in a table
• C)count the number of null values in a column
• D)A and C
• E)B and C

---

Definitions:

Effectiveness

The degree to which something is successful in producing a desired result or outcome.

Psychotherapy

A treatment approach involving psychological methods, typically involving conversations with a therapist, to help someone overcome emotional or behavioral problems.

Controlled Research

A scientific investigation that involves manipulation and control of variables to determine cause and effect relationships.

Clients' Perceptions

Clients' perceptions involve the way clients view and interpret the services they receive, which can significantly impact their satisfaction and the perceived effectiveness of those services.