Lesson 8 Flashcards
Subquery
A query embedded in another query.
SELECT Subquery
Embedding another SELECT statement inside of a query.
Outer Query
Main query that has an inner query embedded inside of it.
Inner Query
The query that is embedded inside another query.
IN
Conditional operator that is a shorthand for multiple OR conditions.
NOT
Conditional operator used to display a row if the condition is not true.
NOT IN
Combines the NOT and IN conditional operators.
OR
Only one condition must be true for the condition to be true.
AND
Both or all the conditions must be true for the condition to be true.
LIKE
Used in the WHERE clause to find a specified pattern in a column.
Wildcard
A character that substitutes for one or more characters in a string.
%Wildcard
Represents zero or more characters.
_Wildcard
Represents a single character.