DBObjectHandle :: DisableWrite - Disable write feature for database
The function will disable the write feature for the database. This will deny all requests for writing data to the database, except intermediate data (as for temporary extents or temporary indexes).
The function can be called for avoiding unnecessary client/master communication while building a result set when running a replication client.
The function will cause an error when being called from within a transaction.
Return value: Success ( logical )