Developer Documentation Library > Data Model > Available DSCs > Relational MR database (RDB) CDSC > Relational MR Database CDSC: Supported CDSC features
 
Relational MR Database CDSC: Supported CDSC features
Every CDSC component has a property map to let client components (such as the ) know what it supports. The following table shows the Relational MR Database CDSC property map values. For more information about the CDSC property map, see CDSC interface.
Property
Value
Aggregates
False
Can Add
True
Can Delete
True
Can Select
True
Can Update
True
DDL Column
True
DDL Hierarchical Column
False1
DDL Hierarchical Table
False1
DDL Table
True
Expressions
False
HDATA
True
Max Commands
0
Max Text Size
4000
Scroll Backward
False1
SDATA
False
Stream Binary
False
Use Binding Properties
False
Use Command Properties
False
Use Group By
False
Use Having
False
Use Order By
False
Use Where
True
VDATA
True
1 These values were True for the original ODBC-based RDB DSC.
When both DDL Column and Can Delete are set to True, the drop column clause in the ALTER table statement will only work for variables that are in the top level (LevelDepth = 1 and the variable's ObjectTypeValue is mtVariable). For more information, see ALTER TABLE.
See also
Relational MR Database CDSC schema
Stored procedures
WHERE expressions supported natively
Relational MR database (RDB) CDSC