希望这能够帮到你
SELECT t1.workid AS 'workid',t1.Question AS 'Question',
COALESCE(`field1`,`field2`,`field3`,`field4`,`field5`) AS 'Answer'
FROM table1 AS t1
JOIN table2 AS t2 ON t1.workid = t2.workid
如何获取在另一个表中定义的列值
如何获取在另一个表中定义的列值
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