您能否提供有关测试应用程序的数据实现的想法？

I am testing a 3 yr old application with a bunch of data, since the data keeps changing I don't want to use the prod data. What other alternatives can I use to mimic the data or is it wise to just use the prod db in a test environment. Any comments or suggestions are welcomed :). If this is a repeated question my apologies but I will appreciate if you could guide me to the appropriate thread. ThanksI am testing a 3 yr old application with a bunc