sql - Slow Query - uses views -


backend on cloud using sql server express 2008 r2 frontend on access 2013

i had query had add subquery to restrict results. query took 1 second run before, takes 70+. think problem may using views in query not indexed. i'm pretty new , don't use access/sql much, apologies if missing obvious here.

this query code:

select distinct vusearch.paid     ,vusearch.pdid     ,concataddress(nz([building_name]), nz([building_no]), nz([street]), nz([indest]), nz([district]), nz([town]), nz([postcode])) address     ,vusearch.deal_date     ,vusearch.lease_end     ,vusearch.break_date     ,vusearch.review_date     ,vusearch.propertytype     ,vusearch.acting_for     ,vusearch.landlord_seller     ,vusearch.tenant_purchaser     ,iif(isnull([vusearch.gia]), [vusearch.nia], [vusearch.gia]) mainarea     ,vudesc.comments_incentives     ,tlddealsearch.include     ,vusearch.incomplete (     vusearch right join tlddealsearch on vusearch.pdid = tlddealsearch.pdid     ) left join vudesc on tlddealsearch.pdid = vudesc.pdid (         (             (vusearch.pdid) in (                 (                     select max(v2.pdid)                     vusearch v2                     group v2.paid                     )                 )             )         , ((vusearch.incomplete) = false)         );

i added indexes tlddealsearch table pdid , include fields (i think i've done right). when looked @ views on backend not add indexes views no schema bound.

is there can or should looking @ speed up? i'm quite worried right there 300 records on database - 70+ seconds?

i have checked on 'analyze performance' tool not sure next.

edit: fast responses guys.

nz - access nulltozero function believe, or replaced it. http://www.techonthenet.com/access/functions/advanced/nz.php

concataddress - function use put elements of address in readable format inclusion in report.

public function concataddress(strbuildingname string, strbuildingno string, strstreet string, _ strindestate string, strdistrict string, strtown string, strpostcode string) string     on error goto errroutine     dim strsql string     if len(strbuildingname) > 0         strsql = strbuildingname     end if     if len(strbuildingno) > 0         if len(strsql) > 0             strsql = strsql & " " & strbuildingno         else             strsql = strbuildingno         end if     end if     if len(strstreet) > 0         if len(strsql) > 0             strsql = strsql & " " & strstreet & ","         else             strsql = strstreet         end if     end if     if len(strindestate) > 0         if len(strsql) > 0             strsql = strsql & " " & strindestate & ","         else             strsql = strindestate         end if     end if     if len(strdistrict) > 0         if len(strsql) > 0             strsql = strsql & " " & strdistrict & ","         else             strsql = strdistrict         end if     end if     if len(strtown) > 0         if len(strsql) > 0             strsql = strsql & " " & strtown         else             strsql = strtown         end if     end if     if len(strpostcode) > 0         if len(strsql) > 0             strsql = strsql & " " & strpostcode         else             strsql = strpostcode         end if     end if     if len(strsql) > 0         concataddress = strsql     else         concataddress = ""     end if errexit:     exit function errroutine:     concataddress = empty     select case err         case 94             'msgbox "postcode not found."             resume errexit         case else             msgbox "the following error has occurred " & err & " " & err.description             resume errexit     end select end function

'#'#'#'#'#'#'

edit

i asked post execution plan query, not available in access. got hack working think close execution plan (couldn't work access 2013 though).

[for info] add key , string registry - hkey_local_machine\software\wow6432node\microsoft\jet\4.0\engines
add key 'debug' , add string 'jetshowplan' - set value on record (results should in documents or in location of database)

- inputs query - odbc table 'vusearch' odbc table 'vusearch' table 'tlddealsearch' odbc table 'vudesc' - end inputs query -  01) sort table 'vudesc' 02) outer join table 'tlddealsearch' result of '01)'       using temporary index       join expression "tlddealsearch.pdid=vudesc.pdid" 1614631268) remote sql 03) sort result of '02)' 04) inner join result of '02)' result of '03)'       using temporary index       join expression "tlddealsearch.pdid=vusearch.pdid"       store result in temporary table

seems alot of sorting going on must slow down some. hope looking for.

edit
access jetshowplan not give detail transferred tldsearchdata table backend , ran query there. removed concatadderss (as uses access function) , iif formula determine area use. resultant execution plans below.

actual: https://drive.google.com/file/d/0b5o8fyhuyq0zodzcwhnias1kz1k/view?usp=sharing estimated: https://drive.google.com/file/d/0b5o8fyhuyq0zu0lnruhvaxvkc1k/view?usp=sharing
query took 19 seconds run directly sql (from cloud server)


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