I want to select from the Attribute table all items with step by 2 (select one item, I don't select the next one, etc). How can I do that? I'm using ArcMap 10.2.2.
This expression shows how to select every other record. You have to run it on a short or long integer field that is incremented consecutively. If you add or delete a record you'll have to re-increment the ID field before running mod query again.
MOD(OBJECTID, 2) = 0
Selects the second record and ever other after that
MOD(OBJECTID, 2) = 1
Select the first record and ever other after that