1. Outline
- WHERE-Learn how to use
WHERE clauses to filter Row records based on specified criteria.
- And operator-describes how to use
AND operators to combine Boolean expressions to form complex conditions for filtering data.
- The OR operator-describes
OR operators and shows how to OR combine operators with AND operators to filter data.
- In operator-Learn how to
WHERE use operators in clauses IN to determine whether a value matches a specified value in a list or subquery.
- Between operator-shows how to use
BETWEEN operators to query data against a specified range.
- Like-Provides a technical example that matches query data based on a specific pattern to perform some fuzzy queries.
- Limit clause-use
LIMIT to limit SELECT the number of rows returned by a statement
- is NULL-use
IS NULL the operator to test whether the value is NULL .
2.
MySQL filtering data-------------------------to be added