recover deleted trades data?

[SuperDriveGuy]

Hi,
I inadvertently deleted my historical trades data.

Is there any way I can recover this? I do take a regular backup, so perhaps from one of the backed up files? making sure that I do not overwrite the most current trades data(done after restoring from the backup)

Thanks

[NinjaTrader_PatrickG]

There would be no way to recover the previous trade data and also prevent the removal of new trade data since the db reset.

We could likely revert this reset (if there is a old database file on your PC), but this would revert back to the state at the time of the reset and would not contain trades made after the reset.

There is no way to merge together database information.

[SuperDriveGuy]

Thanks Patrick.

In that case, I have no option but to go back to the point before the reset. I understand I will lose information on the trades made after the reset.

How do I go about it? where is this database file located?

[NinjaTrader_PatrickG]

Here are the steps to recover the old database:

• Shut down NinjaTrader
• Open Windows File Explorer (hotkey = Windows key + E)
• Navigate to Documents > NinjaTrader 8 > 'db' folder
• You should see two database files — 'NinjaTrader.sdf' and 'NinjaTrader.Old.sdf'
• Delete (or rename) 'NinjaTrader.sdf'
• Rename 'NinjaTrader.Old.sdf' to 'NinjaTrader.sdf'
• Restart NinjaTrader

[SuperDriveGuy]

Thanks.

I managed to recover the old data.

NOTE: for some reason the 'NinjaTrader.Old.sdf' file was smaller than the NinjaTrader.sdf' . But I recovered a NinjaTrader.sdf' from my Windows backup taken days before the event of resetting the database.

Thanks again for your help!