--- In [email protected], "Barry Scarborough" <[EMAIL PROTECTED]> wrote: > > I keep losing data from my intraday database. At one time I had data > back to Feb 07. Today I noticed that I have lost data for a number of > symbols. For example I now have data only back to Aug for QQQQ and > back to July for QID. But that is not true for everything in the > database. If the data for each stock started on the same date/time > that would mean everything before that date was purged but that isn't > the case. The oldest data I can find starts in April and that varies. > This is not the first time this has happened but it is the first time > I have lost so much data at once. What can cause the data to be > purged? Are there any database settings that control how much data is > stored in the database? > > My database settings are 10000 bars, 1 minute data. > > In preferences the default database settings are cache size 100, num > bars to load 300 and max megabytes 300. There is a Local database > save option of 5000 max but this line is not checked. I don't see > anything else that would limit the size of the database. My EOD > database has the same settings. > > I am using AB version 4.90.5 with the IB plugin. > > Any insight into this would be appreciated. > > Thanks, > Barry >
Have a look at this discussion: http://finance.groups.yahoo.com/grou...message/111640 Basically, as of now, you can - increase the bar (you can up the parameter even at 500000); - make a back up of the database once every X days (avisable anyway).
