QlikView Reference Manual.pdf - QlikCommunity - QlikView

This dialog is used to display the data table structure of the current QlikView document. Tables are shown
as boxes with a list of the fields they contain. Connector lines between the boxes show the associations.
Where more than two lines meet there are connector points in the form of small dots.
The tables, the connector points and also all points where the connectors bend can be moved by means of
mouse drag and drop (see below). When re-arranging the layout like this, the changes will be saved with the
document unless the dialog is exited with Cancel.
There are two views available, the layouts of which are stored separately. The two views are:
l The Internal Table View is the default view. It shows the data tables as QlikView stores them. Composite synthetic
keys are formed in tables that share more than one field. Synthetic tables are used to link them. This view offers the best
understanding of the QlikView logic and also provides a very clean layout where each pair of tables has a maximum of
one connector between them.
l The Source Table View shows data tables as QlikView reads them. Here there are no synthetic fields or synthetic
tables. Composite keys are represented by multiple connectors between tables.
When hovering with the cursor above one of the fields in a table, a tool tip pops up with information about
the content of this field:
l Information density is the number of records that have values (i.e. not NULL) in this field as compared to the total
number of records in the table.
l Subset ratio is the number of distinct values of this field found in this table as compared to the total
number of distinct values of this field (that is other tables as well).
l Table comments are displayed in the tool tip.
l Field comments are displayed in the tool tip.
l Tags that are added in the script or in Document Properties: Tables page, including system tags, are
displayed in the tool tip.
The following actions can be performed in the table layouts (click here to expand a
list):
Click on Table Caption
Point at Table Caption
and Drag
Hover Over Table Caption
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Highlights the table, all tables with direct logical associations
with that table and the connections between them.
Moves the table in the layout.
Shows pop-up info about table.