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Direct MessagesDate/Time: Tue, 23 Apr 2024 20:34:06 +0000
Lose old historical data?
View Count: 536
| [2020-09-24 12:44:41] |
| RonW - Posts: 103 |
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A while back, I did an analysis using historical data as far back as would load from my data provider, which is a CQG product I get through my broker. Months later, when I pulled up that chartbook again, the oldest data was no longer there (i.e. the data started months later). I was confused, because I thought the old data was stored in my SierraChart\Data folder. 2 Questions: 1) Is this (the inability to access historical data beyond a certain timeframe earlier than present, even if I had previously downloaded that data) a Sierra Chart issue or a data provider issue? Or a combination of the 2? Is there a setting in Sierra Chart that I could change whereby the older data would be preserved and accessible? 2) If the answer to the above question is "no, the old data must be lost", then: When backing up Sierra Chart to restore in a different location, is it really necessary to copy over the market data files that are in the \Data folder? If I am not getting any different data than Sierra Chart would load for me when I open the program, why bother? Thanks!! |
| [2020-09-24 16:18:28] |
| John - SC Support - Posts: 31054 |
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The first answer is "The old data must be lost". But we do not know why. As you stated, it should still be there unless you had deleted the data or changed the data directory for Sierra Chart and then not moved the data files. But, since you are on Package 5, you have access to the Historical Sierra Chart data, so you should be able get that data back. In general, refer to the following information for how to get more intraday historical data: Historical Intraday Data (Missing Data / Download Errors / Viewing More Data): Downloading/Viewing More Historical Intraday Data And here is where the information is for more Daily Historical Data: Downloading Historical Daily Data For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2020-09-25 19:34:05
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| [2020-09-25 19:35:14] |
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2. No you do not need to copy the data. All the available data will be downloaded from servers. The servers maintain full historical data.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
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