多桌我有如下表:选择在phpMyAdmin
branchInfo (brID, brName)
MotherBoard (ComputerID, Manufacturer, Product, SerialNumber)
Computers (ComputerID, LatestIP, brID)
CPU (ComputerID, NumberOfCores, ClockSpeed)
OS (ComputerID, MemorySize)
Disk (ComputerID, MemorySize)
Network (LatestIP, ipSubnet)
,并希望.csv导出文件(brName,制造商,产品,的SerialNumber,LatestIP,ipSubnet,NumberOfCores,时钟速度,MemorySize,MemorySize)字段 请帮我写sql代码