AND Operator
The AND
operator is used to combine multiple conditions in a SQL query. All conditions must be true for the overall expression to be true.
Example: Using AND
SELECT Name
FROM FreedomFighters
WHERE City = 'Madurai' AND Contribution = 'Healthcare';
Output:
Returns the names of freedom fighters from Madurai who contributed to healthcare.
Do's and Don'ts
Do's
- Use
AND
for precise filtering when multiple conditions must be met. - Test the query to ensure that all conditions are correctly combined.
Don'ts
- Don't use
AND
if any of the conditions can be false; consider other operators. - Don't forget to use parentheses when combining
AND
withOR
to control precedence.