We've got a table of places. The same place may occur multiple times in our table (bad design, not our choice). We had someone go through and find addresses for each of these places. They only updated one of the many instances of each place.We've got a table of places. The same place may
阅读背景：
SQL查询 - 从同一个表中的1条记录更新许多记录
来源：互联网
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