Introduction to SQL (Part II)
Created by Savage Killer
| Term | Definition |
|---|---|
INSERT, SELECT UPDATE, and DELETE. | The basic data manipulation commands are |
INSERT INTO | adds new rows/records to a table |
SELECT | retrieves values of all rows or a subset of rows in a table |
DISTINCT | an operator used with SELECT to retrieve unique values from columns in a table |
WHERE | an option used with SELECT to filter the rows of data based on provided criteria |
IS NULL | an operator used with SELECT to determine whether a field is empty or not |
LIKE | an operator used with WHERE to determine whether a value matches a given string pattern
|
IN | an operator used with WHERE to check whether a value matches any value within a given list |
BETWEEN | an operator used with WHERE to check whether a value is within a range |
ORDER BY | An option used with SELECT to sort retrieved values in ascending or descending order |
UPDATE | modifies existing records in a table |
DELETE | removes existing records in a table |