如果两个表中都有一个“公共键列”，并且此键列在两个表中具有相同的值（它们在两个表中引用相同的行），则下面的查询应该起作用：
UPDATE Table1
SET Column1 = t2.Column1
FROM Table2 t2 INNER JOIN Table1 t1 ON t2.KeyColumn = t1.KeyColumn
UPDATE Table3
SET uploadYearModel = t1.yearModel
FROM Table1 t1
INNER JOIN Table2 t2 ON t2.imgid = t1.imgid
INNER JOIN Table3 t3 ON t3.uploadId = t2.uploadId
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