SQL 31) 将employees表的所有员工的last_name和first_name拼接起来作为Name
将employees表的所有员工的last_name和first_name拼接起来作为Name
http://www.nowcoder.com/questionTerminal/6744b90bbdde40209f8ecaac0b0516fe
方法）CONCAT()
SELECT CONCAT(last_name, ' ', first_name)Name FROM employees;
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