Coradata Page Search

Source: Internet
Author: User

Paged Read Database

class func dbgoodsinforeadwithcondtions (limitdata:int, fetchset:int)- > [anyobject]{

let app = dbappdalegateobject()

let request = nsfetchrequest()

let entity = nsentitydescription. Entityforname("Goodsinfo", Inmanagedobjectcontext:app.managedobjectcontext!)

Request. entity = entity

Request. fetchbatchsize = 10 has not yet figured out what the difference between this property and Fetchlimit seems to be a read to memory?

request. Fetchlimit = limitdata // at least how many bars are read from the database at once

Request. fetchoffset = limitdata*fetchset // start reading from the first few indexes in the database

var error: nserror? = Nil

let idarray = app.managedobjectcontext!. executefetchrequest(Request, Error: &ERROR)! As Array

return app.managedobjectcontext!. executefetchrequest(Request, Error: &ERROR)!

}

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