怎么在查询结果中重命名列名如“ Customer Full Name”呢?
如题,怎么把列名重命名成题目里的样子呢?
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select first_name || last_name as "用户 姓名"
from employess;
别名中间有空格时,需要用""引起来。
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SQL code
select sysdate "what time is it" from dual;