Columns and Indexes

The following table describes using columns and indexes of a data structure:

Step	Description	P	E	Objects	Considerations
1	Add a column.	M	D	Implemented entity type Plus data table	An entity type scoped with Modify or Delete protection includes its associated data table with Read protection.
2.	Delete a column.	D	D	Implemented entity type Plus data table	An entity type scoped with Modify or Delete protection includes its associated data table with Read protection.
3.	Add an index.	M	D	Data table
4.	Delete an index.	D D	D D	Implemented entity type Plus data table	An entity type scoped with Modify or Delete protection includes its associated data table with Read protection.