Historical Data Download Scheduler: Difference between revisions
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Historical Data Download Scheduler (view source)
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# Selection of resolutions and quote fields is done individually for each symbol. Click on the symbol and check the required checkboxes for it in the '''Select resolutions for each symbol''' section. To select/deselect all available fields use '''Check all/Uncheck all''' buttons. | # Selection of resolutions and quote fields is done individually for each symbol. Click on the symbol and check the required checkboxes for it in the '''Select resolutions for each symbol''' section. To select/deselect all available fields use '''Check all/Uncheck all''' buttons. | ||
# The resolution and quote field selection can be done for all instruments simultaneously by using '''Select all''' button. '''Select none''' option will cancel the selection of symbols. | # The resolution and quote field selection can be done for all instruments simultaneously by using '''Select all''' button. '''Select none''' option will cancel the selection of symbols. | ||
# '''Data removal options''' section allows to specify the types of data for the selected symbols to be removed from | # '''Data removal options''' section allows to specify the types of data for the selected symbols to be removed from MultiCharts database during downloading the historical data. See more details below. | ||
==Data Removal Options== | |||
From the drop-down list choose: | |||
*'''Delete nothing''' to request the historical data for the selected data range, resolution and quote field from the data feed. If the data is received from the provider, the new data replaces the data that was stored in the database before for the selected interval and type. If the data is not received from the provider, data remains the same. | |||
==Schedule | *'''Delete only the data of the selected type and time interval''' to delete the symbols’ historical data for the selected data range, resolution and quote field and request new historical data. Data backup is automatically created. If the data is received from the provider, the new data is saved in the database. If the data is not received from the provider, there will be a gap in the data of the selected type and time interval. | ||
*'''Delete the data of the selected type completely''' to delete all the historical data stored in the database for the selected symbols and download historical data for the selected data range, resolution and quote field. | |||
==Schedule Settings Tab== | |||
# Click on the '''Name''' (in blue) to change the name of the schedule. | # Click on the '''Name''' (in blue) to change the name of the schedule. | ||
# Select the frequency of downloading from the available options: '''One time''', '''Daily''', '''Weekly''', '''Monthly'''. | # Select the frequency of downloading from the available options: '''One time''', '''Daily''', '''Weekly''', '''Monthly'''. |