only reference
udpate a set a.columnname=b.columnname1 from tablea join tableb on a.keycolumn=b.keycolumnyour tables without keycolumn,员工代号<>工号,and the column 员工姓名 maybe replicate
udpate a set a.columnname=b.columnname1 from tablea join tableb on a.keycolumn=b.keycolumnyour tables without keycolumn,员工代号<>工号,and the column 员工姓名 maybe replicate
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