Mark, I'd think that the procedure would be the same regardless of the table's row count--have you considered creating a similar table, enabling trace, and inspecting the trace file? -- Paul Baumgartel paul.baumgartel@xxxxxxxxxxxx On 11/15/05, Strickland, Mark <mark.strickland@xxxxxxxxxxxx> wrote: > > A co-worker needs to modify a varchar2 column from 100 bytes to 200 bytes > in a large table. We think that it will just modify the data dictionary and > not do a full table scan. Does anyone know for sure? Yep, I've RTFM'd and > google'd and metalink'd it. Thx. > Mark Strickland > Seattle, WA >