Q : How to disable reordering of columns in table
A: ADF table has many user friendly features like detaching the table, viewing or hiding columns, reordering table columns by just drag and drop etc. Though these features are excellent, at times they might be unnecessary. In one of my tables, I am supposed to disable the reordering feature of my table columns. To do this, we need to add the following attribute to af:table tag in the source of your page.
Jdev used : Jdev 11g R1