ABAP_to_the_Future

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ABAP Programming for SAP HANA
Figure 15.3 Creating a DDL Source: Part 2
Your CDS view already has a name, but having one name is just not good enough;
you need two names. The new name is for the SQL view that is going to be created
in the dictionary (the one you will be able to look at in SE11), and the name
you already have is a name for the CDS view entity, which is viewed and changed
via Eclipse. You could name both the SQL view and the CDS view the same,
but…don’t. They’re different things, so the name should reflect that. Call the SQL
view ZV_MONSTERS and the entity ZCDS_MONSTERS.
The former can be seen in SE11; the latter is the one you should refer to in SELECT
statements in your ABAP programs. (You could refer to the former in your programs
as well, but that would be naughty.)
Coding the DDL
Now, it’s time to code the DDL, which will eventually create the CDS view when
complete. As mentioned earlier, this will consist of one big SELECT statement. You
have to start the coding with one or more so-called annota tions, which can be
thought of as header settings (or metadata, as in “Mutants in Metadata One”) for
the view. An annotation is a line of code that starts with an @ sign.
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