Collation Element (RDL)
Describes the locale that the report server uses to sort data.
The Collation element uses the standard SQL Server collation codes. For information about these codes, see Windows Collation Name (Transact-SQL).
If no collation is specified within the DataSet element, the report server attempts to derive the collation code from the data processing extension. If the server cannot get this information from the extension, the collation is set to the Language property of the report.