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Restriction: It is not allowed to add column views to the Data Foundation.
b) If you want to query data from more than one table, in the Details panel context menu, choose Create
Join, and enter the required details.
Note: After creating the join, you can edit its properties like join type, cardinality, etc in the
Properties view. You can choose to create Text Join between table fields in order to get languagespecific
data. For example, consider that you have a product table that contains product IDs and
no description about products, and you have a text table for products that has a language-specific
description for each product. You can create a text join between the two tables to get languagespecific
details. In a text join, the right table should be the text table and it is mandatory to specify
the Language Column.
c) Add the table columns to the output structure that is, the Semantics node that you want to use to define
attribute data. You can define the attribute data by doing one of the following:
○ Select the toggle button on the left of the table field.
○ Right-click the table field, and choose Add to Output.
d) If you want to specify a filter condition based on which system must display data for a table field in the
output do the following:
1. Right-click the table field, and choose Apply Filter.
2. Select the required operator, and enter filter values.
All the table fields that you have added to the output are automatically mapped as attributes.
3. Define Key Attributes
a) Select the Semantics node.
b) In the Attributes tab page of the Column panel, select the required attribute and select the Type as Key
Attribute.
Remember: If there is more than one key attribute, all key attributes of the attribute view must
point to the same table in the data foundation. The central table of the attribute view is the one to
which all the key attributes point.
Note: In case of auto-generated time attribute views, the attributes and key attributes are
automatically assigned.
4. Optional Step: Create Calculated Columns
a) In the Output of Data Foundation panel, right-click Calculated Columns.
b) In the context menu, choose New.
c) Enter a name and description (label) for the calculated column.
d) Select a data type for the calculated column.
e) Enter length and scale for the calculated coulmn.
f) In the Expression Editor enter the expression. For example, you can write a formula such as,
if("PRODUCT" = 'ABC', "DISCOUNT" * 0.10, "DISCOUNT"). This means if attribute PRODUCT equals the
string ‘ABC’ then DISCOUNT equals to DISCOUNT multiplied by 0.10 should be returned. Otherwise the
original value of attribute DISCOUNT should be used.
g) Choose OK.
SAP HANA Developer Guide
Setting Up the Analytic Model
Note: The expression can also be assembled by dragging and dropping the expression elements
from the menus below the editor window.
P U B L I C
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