John, Direct load takes a TM enqueue on the table in e'X'clusive mode. This effectively blocks all other DML (and DDL, for that matter) against this table. Non-direct DML takes a TM enqueue in 'S'hared mode, which will queue behind the 'X' mode lock taken by the direct load. Selects, however, will not be affected. -Mark On Thu, 2005-01-20 at 05:28, John Dunn wrote: > As I understand it direct load requires exclusive access to the table. > > What happens if someone tries to do a select or delete on the table whilst > the load is in progress? > Presumably they will just wait for the lock to be released? > > John > > > -- > //www.freelists.org/webpage/oracle-l -- Mark J. Bobak mark@xxxxxxxxx "Science is the belief in the ignorance of experts." --Richard P. Feynman -- //www.freelists.org/webpage/oracle-l