SELECT *

FROM suppliers

WHERE (state = 'California' AND supplier_id <> 900)

OR (supplier_id = 100);

SELECT column1, column2, columnN 

FROM table_name

WHERE [condition1] AND [condition2]...AND [conditionN];

SELECT items.* FROM items i, meta_data m1, meta_data m2

    WHERE i.item_id = m1.item_id and i.item_id = m2.item_id

    AND m1.meta_key = 'lat' AND m1.meta_value >= 55 AND m1.meta_value <= 65

    AND m2.meta_key = 'lng' AND m2.meta_value >= 20 AND m2.meta_value <= 30

SELECT column1, column2, ... FROM table_name WHERE column_name1 = 'value1' AND column_name2 = 'value2';