Altering the sequence of fields of a table was a feature I was looking for in OpenOffice Base. It is not directly possible to drag the columns or fields and alter their sequence.
A SQL workaround can do the same thing.
If the sequence of fields is :
name , email , address , phone
and phone is to be brought before address like this :
name , email , phone , address
then the sql for this should be
1. ALTER TABLE "tablename" ADD COLUMN "phone2" INTEGER BEFORE "address"
2. UPDATE "tablename" SET "phone2" = "phone"
3. ALTER TABLE "tablename" DROP COLUMN "phone"
4. ALTER TABLE "tablename" ALTER COLUMN "phone2" RENAME TO "phone"
Then View > Refresh Tables in the top menu. And open the table again for viewing.
The sequence should now be name , email , phone , address