hi,
thank you very much, it works... but i need to use thisform.text1.value instead of mytable..

USE atable22 excl&& it works
If type('atable22.ccc')<>'U'
  alter table atable22 drop column ccc
   brow
ENDIF
******************************
USE JUSTSTEM(thisform.text1.Value) excl&&& not works
If type('thisform.text1.Value.ccc')<>'U'
   alter table (thisform.text1.Value) drop column ccc
   brow
endif

thanks