SQL allows the use of special operators in conjunction with the WHERE clause. A special operator used to check whether an attribute value matches a value contained within a subset of listed values is . Question 20 options: BETWEEN IS NULL LIKE IN

LIKE.

Explanation:

A structured query language (SQL) can be defined as a domain-specific language designed and developed for managing the various data saved in a relational or structured database.

In Computer programming, any word restricted for use, only in object names because they belong to the SQL programming language are called reserved word.

Hence, these reserved words can only be used as the name of an object but not as an identifier e.g the name of a function, label or variable.

Some examples of reserved words in structured query language (SQL) are UPDATE, GROUP, CURRENT_USER, CURRENT_DATE, CREATE, DELETE etc.

Hence, SQL allows the use of special operators in conjunction with the WHERE clause. A special operator used to check whether an attribute value matches a value contained within a subset of listed values is LIKE.

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

answers

a. nitrogen (n)

d. oxygen (o)

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