SELECT
a.'维度1',
a.'维度2',
a.'应续1',
a.'应续2',
b.'已续1',
b.'已续2'
FROM
table_a AS a
LEFT JOIN table_b AS b ON a.'维度1' = b.'维度1'
AND a.'维度2' = b.'维度2'
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0 Answer
这家伙很懒，什么都没留下...