选择与条件匹配的行

Created: November-22, 2018

通常，语法是：

SELECT <column names>
FROM <table name>
WHERE <condition>

例如：

SELECT FirstName, Age
FROM Users
WHERE LastName = 'Smith'

条件可能很复杂：

SELECT FirstName, Age
FROM Users
WHERE LastName = 'Smith' AND (City = 'New York' OR City = 'Los Angeles')