SELECT
employeeNumber, lastName, firstName
FROM
employees
WHERE
firstName LIKE 'a%';
SELECT
employeeNumber, lastName, firstName
FROM
employees
WHERE
lastName LIKE '%on';
SELECT
employeeNumber, lastName, firstName
FROM
employees
WHERE
lastname LIKE '%on%';
SELECT
employeeNumber, lastName, firstName
FROM
employees
WHERE
firstname LIKE 'T_m';
SELECT
employeeNumber, lastName, firstName
FROM
employees
WHERE
lastName NOT LIKE 'B%';
SELECT
productCode, productName
FROM
products
WHERE
productCode LIKE '%\_20%';
SELECT
productCode, productName
FROM
products
WHERE
productCode LIKE '%$_20%' ESCAPE '$';