Dear Mr. Simon: First, thanks for learn to me that the list don?t admits attachments.
Second, I am not sure that my problem if only with lazarus, the error messages appears when I try to copy a table to a transistory one, drop, and recreate the same table, and after that copy from the transistory one to de recent recreated table. I do the routines up to the error message appear. Then I close the table, and do an application.terminate. Then I start again but go to a phase2 routines, following the logical plan, generally up to the end of process. I would try to do all this (copy, drop, create, re-copy and drop the temporary table) in a singles procedure (phase). Thanks in advance for your help, Yours, Ing. H?ctor Fiandor hfiandor at ceniai.inf.cu