>IF !USED("mytable") > USE c:\mydir\mytable.dbf ALIAS mytable >ENDIF >SELECT mytable >GO TOP >DO WHILE !EOF() > IF !USED("mytable2") > USE c:\mydir\mytable2.dbf ALIAS mytable2 > ENDIF > REPLACE mytable.field1 WITH mytable2.field1 > SELECT mytable > IF !EOF() > SKIP > ENDIF >ENDDO>But as soon as I open mytable2 the ALIAS mytable cannot be found.