Switchover Between Direct-Connected Data and Extracted Data

  • Last update:  2024-04-02
  • Overview

    This document introduces how to switch dataset attributes and create tables in the Direct-Connected Data and Extracted Data modes.

    • Direct-Connected Data: The direct connection database directly requests data, which do not need to be extracted to the FineBI disk. Therefore, you do not need to update data.

    • Extracted Data: FineBI extracts data from your database to the FineBI disk. That is, data is stored in the local computer, accelerating the computation. However, you need to update data regularly.

    Operation Method

    Switchover of Dataset Attribute Setting

    Choose Public Data and click the setting icon in the upper left corner to switch the dataset attribute, as shown in the following figure.

     1.png

    Dataset Creation

    After switching the attribute, click Add Dataset to create a dataset with the corresponding attribute.

    The icon of the direct connection dataset has an underscore, which does not exist in the icon of the extraction dataset, as shown in the following figure.

     2.png

    Notes

    • The dataset with the direct connection attribute does not synchronize data in the database in real time. By default, the system requests data from the database every 600 seconds. That is, data is refreshed every 600 seconds. If you want to change the refresh interval (600 seconds by default), you can refer to the document BI Cache.

    • You are not advised to use data tables with the direct connection attribute in large-data-volume scenarios with low-performance databases (such as MySQL with over ten million data).

    Differences Between Direct Connection and Extraction Function Points

    Function

    Function
    Direct-Connected Data AttributeExtracted Data Attribute

    PERCENTILE_AGG

    Supported

    /

    APPROX_COUNTD_AGG

    Supported

    /

    FACT

    /

    Supported

    DAYS360

    /

    Supported

    LUNAR

    /

    Supported

    NUMTO

    /

    Supported

    PROPER

    /

    Supported

    SPLIT

    /

    Supported

    SUBSTITUTE

    /

    Supported

    Data Preparation

    Function Point
    Direct-Connected Data AttributeExtracted Data Attribute

    Association, Union All, and Join between data tables in the database and Excel tables. For details, see Direct Connect Databases Supporting Integrated Analysis with Excel.

    Only some databases support these function points.

    Supported

    Display of the total number of rows in Data Preview

    The total number of rows can be displayed correctly only when the set number of preview rows is larger than that of the total rows.

    The total number of rows is displayed.

    Row-Column Conversion

    /

    Supported

    Self-Looping Column

    /

    Supported

    Two data sources for two tables with Join, Union All, and Association operations

    /

    Supported

    Sort

    /

    Supported

    Group Summary

    Different ranges are supported during the summary field setting.

    Filter

    Different ranges are supported for filtering conditions.

    Component

    Function Point
    Direct-Connected Data AttributeExtracted Data Attribute

    Percentile in Summary Mode of tables

    Supported

    /

    Parameter application in the SQL dataset

    Supported

    /

    Filtering in the analysis area

    Different condition ranges are supported for date filtering.


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