Skip to content

Commit

Permalink
changes to qbe contents: query preview
Browse files Browse the repository at this point in the history
  • Loading branch information
@gmansueto
gmansueto committed Mar 23, 2023
1 parent b55c998 commit 6b719cb
Show file tree
Hide file tree
Showing 2 changed files with 21 additions and 20 deletions.
Binary file added chapter_3/create_qbe/media/saveQbeDS_8.1.png
View file
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
41 changes: 21 additions & 20 deletions chapter_3/create_qbe/qbe.rst
View file
Original file line number Diff line number Diff line change
Expand Up @@ -186,8 +186,8 @@ Filters are expressions of type:

**Left operand + Operator + Right operand.**

How to add a filter:
- in the Smart view, clicking on **Funnel icon**
How to add a filter:
- in the Smart view, clicking on **Funnel icon**
- in the Advanced view, selecting **Filters** from the *three dots* field menu

In both cases a pop up opens and click on the **+** icon to add your filter.
Expand Down Expand Up @@ -230,24 +230,24 @@ The option **Another entity** allows the selection of a field from another entit
Filtering data on fields with type of Date/Time/Timestamp through Calendar/Time functions is only available for the Enterprise Edition.

If you have the SI license file, you could filter your data with fields type of date/time/timestamp using Calendar/Time/Calendar + Time options.
This depends on which data type is your field, and this comes from the metamodel creation phase.
When creating your metamodel, you can set the data type of your field.
This depends on which data type your field is: the dat type is assigned when creating the metamodel.


.. figure:: media/timeDataType.png

Metamodel creation.

.. figure:: media/date.png

Filters creation on date data type of the field.
Filters on date fields.

.. figure:: media/time.png

Filters creation on time data type of the field.
Filters on time fields.

.. figure:: media/timestamp.png

Metamodel creation, timestamp data type of the field.
Filters on timestamp fields.


The following table summarizes the possible types of filters in the QbE. The use of subqueries in filters will be explained later in the *Advanced QbE functionalities* paragraph.
Expand All @@ -260,24 +260,24 @@ The following table summarizes the possible types of filters in the QbE. The use
| | operand | | operand | |
+=============+=============+=============+=============+=============+
| Basic | Entity.attr | Any | value | Prod.family |
| | ibute | | | = |
| |ibute | | | = 'Food' |
| | | | | |
| | | | | |
| | | | | 'Food' |
+-------------+-------------+-------------+-------------+-------------+
| Basic | Entity.attr | Any | Entity.attr | Sales.sales |
| | ibute | | ibute | > |
| |ibute | | ibute | > |
| | | | | Sales.cost |
+-------------+-------------+-------------+-------------+-------------+
| Parametric | Entity.attr | Any | [parameter] | Prod.family |
| | ibute | | | = |
| |ibute | | | = [p_family]|
| | | | | |
| | | | | |
| | | | | [p_family] |
+-------------+-------------+-------------+-------------+-------------+
| Dynamic | Entity.attr | Any | prompt | Prod.family |
| | ibute | | | = ? |
| |ibute | | | = ? |
+-------------+-------------+-------------+-------------+-------------+
| Value | Entity.attr | In | subquery | Sales.custo |
| list | ibute | | | mer |
| list |ibute | | | mer |
| from | | /not in | | in subquery |
| subquery | | | | |
+-------------+-------------+-------------+-------------+-------------+
Expand All @@ -287,26 +287,27 @@ The following table summarizes the possible types of filters in the QbE. The use
| subquery | | | | |
+-------------+-------------+-------------+-------------+-------------+

When filtering a date attribute or a time attribute it is possible to apply a timespan to ease the insertion of values. Following the images below, we can see that the Timespan button appears when filterting, for instance, a date attribute. We recall that is it possible to configure a new timespan using the dedicated Knowage functionality we described in the administrator guide.
When filtering a date attribute or a time attribute it is possible to apply a timespan to ease the insertion of values. Following the images below, we can see that the Timespan button appears when filterting, for instance, a date attribute. We recall that is it possible to configure a new timespan using the dedicated Knowage functionality that we described in the administrator guide.

.. figure:: media/imageTS005.png

Filtering date attribute: use a timespan.

After selecting one timespan, the user must clcik on apply to ask the server to insert the start and end values.
After selecting a timespan and clicking on apply, the user has to insert the start and end date values.

.. figure:: media/imageTS006.png

Filtering date attribute: apply a timespan.

Finally click on the save button and data is filtered accordingly.
Save now to filter data accordingly.


Query Preview
^^^^^^^^^^^^^^^

While you are in smart view you can see preview of you query.
While you are in advanced view, and you are satisfied with your query or if you want to check the results, you can see the returned data by clicking the **Play** button located in the top right corner of the panel. From there, you can go back to the **Designer** to modify the definition of the query.
The Smart automatically shows the preview of you query.
The Advanced view contains a **Play** icon located in the top right corner of the panel, that opens a window with the results of the query.
Just close the window to go back to the **Designer**.

.. figure:: media/preview.png

Expand All @@ -323,7 +324,7 @@ Choose your scheduling option and save the dataset. Now the table where your dat

- **Metadata** It recaps the metadata associated to the fields involved in your query.

.. figure:: media/saveQbeDS.png
.. figure:: media/saveQbeDS_8.1.png

Save qbe dataset.

Expand Down

0 comments on commit 6b719cb

Please sign in to comment.