将查询显示为语句

Question

我将运行查询作为语句。例如：你好世界

我试图这样做

select concat('employee ', employeename, 'joined on ', doj, 'who gets' , salary , ' dept' , dept) 
from employee where emid=1;

输出的参数数目无效。

Answer 1

使用 Select 'employee' || employeename ||'joined on' || doj || 'who gets' || salary || dept from employee where emid=1;

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