RE: View without a primary key

vijayanv — Tue, 01 Jan 2019 18:21:02 GMT

Use ROWNUM and define this field as a primary key in cdt.

SELECT ROWNUM as ID, <columns> FROM
(select <columns> from <table1>
union
select <coulumns> from <table1> );

Your XSD:
<xsd:element name="id_int" type="xsd:int">
<xsd:annotation>
<xsd:appinfo source="appian.jpa">@Id</xsd:appinfo>
</xsd:annotation>
</xsd:element>

RE: View without a primary key

Aditya GIll — Tue, 01 Jan 2019 17:47:18 GMT

Hi,

When you map a New cdt to data store without having a primary key, Appian automatically creates a new column for primary key i.e. a_id. This new column is not accessible to for use. You need to recreate a cdt for view, you can also add a manual auto-increment in the database like,

SELECT CAST(ROW_NUMBER() OVER(ORDER BY column_Name) AS INT) AS PRIMARY_KEY ,* FROM
( View ) A

and map this column as primary key on CDT.

Thanks

Aditya