Now let's say you want to find the city for each company based on their telephone area code. In this case, you can run a query like this.
现在，假设希望根据每家公司的电话区号找到它们所在的城市。
A ten number telephone including the area code, home address and zip code, eight Numbers.
再加上十位数的电话号码(包括电话区号)，还有代表家庭住址和邮政区号的八位数。
A ten number telephone including the area code, home address and zip code, eight Numbers.
再加上十位数的电话号码(包括电话区号)，还有代表家庭住址和邮政区号的八位数。
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