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Write an SQL statement that will be used to retrieve data from the database. The SELECT part of the SQL statement determines the columns you will have to map in the next step.
Source column mapping
Once you have finished setting your parameters you will have to conduct the Source column mapping.
Mapping the data to columns is similar to importing excel and CSV files. The differences here are that you need to name your own cube and dimensions, because they need to be created if your data does not fit any of the already existing cubes.
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Incremental import
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Available from the flex.bi version 4.2 and in flex.bi Cloud. |
By default, SQL import will always re-import all data. During the import the old imported data will be deleted and then replaced by new returned data. If SQL SELECT returns many rows then each data import might take long time as well as reports might return incomplete data while the old data are deleted and not all new data are imported.
If you would like to use incremental import to update just the recent source data after the initial full import, then click Incremental import parameters and enable it:
In addition, specify the incremental import WHERE conditions in the SELECT statement. Use special -- if incremental, -- else, -- end comments (as shown in the example) to specify which lines should be included only for the incremental import and which lines only for the full import. Typically you need to specify a condition that filters just recently updated rows using the corresponding date column.
If incremental import is used then it will be required to specify a Source ID column in the source columns mapping step. Source ID column value should provide a unique results row identifier. It is used to identify when some existing imported rows in flex.bi should be replaced with updated source data during the incremental import.
If you have previously imported all data without the incremental import option, then it will not be possible to modify the source columns mapping. Therefore, at first delete all imported data for this SQL source, and then modify the source columns mapping and specify the Source ID column.
Source column mapping
To conduct the Source column mapping please visit Data mapping.
When you have finished mapping your data, press 'Start Import' button.
If your import finishes successfully, you can see the results in the Analyze tab, in the cube you imported your data to.
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