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SQL CourseSQL Course
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I have to build a database of firms that can have more than one address. It is formed by two Tables:
Table1 Firms
Fields
FirmID Firm name Number_of_sites
Table2 Addresses
SiteID FirmID SiteAddress
Do you know if I can update the Number_of_sites field by using an UPDATE query with a count on the fields of the second table joined to the ones of the first?