Analysis Services execute ddl task

Question

Hi,
I want to run the Analysis Services execute ddl task to execute a cube creation via xmla script.
The cube could already exist, so I want to ask if it exists before running the task or else it will fail.
What would be the best way to perform this - if exist question ?
Dani

Answer 1

You can use alter element like this example:
<Alter ObjectExpansion="ObjectProperties" xmlns="http://schemas.microsoft.com/analysisservices/2003/engine">
<Object>
<DatabaseID>Adventure Works DW Multidimensional 2012</DatabaseID>
<DataSourceID>AdventureWorksDW2012</DataSourceID>
</Object>
<ObjectDefinition>
<DataSource xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="RelationalDataSource">
<ID>AdventureWorksDW2012</ID>
<Name>AdventureWorksDW2012</Name>
<ConnectionString>Data Source=fr-dwk-02;Initial Catalog=AdventureWorksDW2008R2;Integrated Security=True</ConnectionString>
<ManagedProvider>System.Data.SqlClient</ManagedProvider>
<Timeout>PT30S</Timeout>
</DataSource>
</ObjectDefinition>
</Alter>
More info on "Alter Element" on MSDN 
http://technet.microsoft.com/en-us/library/ms186630.aspx