THE SQL Server Blog Spot on the Web

Welcome to SQLblog.com - The SQL Server blog spot on the web Sign in | |
in Search

SELECT Hints, Tips, Tricks FROM Hugo Kornelis WHERE RDBMS = 'SQL Server'

Misconceptions on parameter sniffing

This blog has moved! You can find this content at the following new location:

https://SQLServerFast.com/blog/hugo/2016/11/misconceptions-on-parameter-sniffing/

Published Thursday, November 3, 2016 1:55 AM by Hugo Kornelis

Comment Notification

If you would like to receive an email when updates are made to this post, please register here

Subscribe to this post's comments using RSS

Comments

 

Emphyrio said:

Thank you. very clear explanation.

November 3, 2016 4:54 AM
 

Grant Fritchey said:

Awesome post. Excellent in every way.

Minor quibble: I'm not a parameter sniffing fan boy. I probably over-emphasize the benefits though. It's just unfortunate that in the inherited language we use, "parameter sniffing" doesn't refer to the mechanism, but the bad effects that the mechanism sometimes has. I'm just trying to reclaim the term.

November 3, 2016 8:41 AM
 

a.m. said:

"Until recently when I was trying to find a few examples to actually illustrate the benefit of parameter sniffing – and failed to find any!"

Are you perchance conflating "parameter sniffing" with "plan re-use where the plan was generated using a sniffed parameter?" I think these are two different things, although most people seem to talk about them as equivalent. The former, I would argue, is undoubtedly useful. The latter is where we can see trouble. I think it's an important distinction. What do you say on the matter?

--Adam

November 3, 2016 9:44 AM
 

Hugo Kornelis said:

Good comments, people!

I received a comment off-list about a new feature in SQL Server 2016, ALTER DATABASE SCOPED CONFIGURATION SET PARAMETER_SNIFFING [ ON | OFF ] that has the same effect as trace flag 4136, but only for a single database instead of all databases on the instance. This option had slipped my mind when I was writing the post; sorry for not including it. I dislike this option only very slightly less than setting the trace flag. I do not want to throw out the child with the bathwater; I prefer to handle sniffing issues on a case by case basis. However, if you do want to turn off parameter sniffing completely, then I agree that this option is at least a bit more granular than the trace flag. (And more exposed, as you can even see it in the database properties dialog of SSMS).

@Grant: I know, especially after our talk last week at the Pass summit, that you are not really a "fan boy".

I sometimes like to provoke in my posts, which is why I chose to use extrame words. If you, or anyone else, feels offended - my apologies.

@Adam: I could have phrased that better. What I intended to write is that, while there are many examples out there to illustrate "bad parameter sniffing" (or, as you would say it, "bad results of re-use of a plan generated by sniffing"), there were no examples to back the claim that in most other situation the parameter sniffing has a beneficial effect.

For parameter sniffing to be really beneficial, you'll have to produce an example where a plan generated for a sniffed value is better for that specific value than a non-sniffed plan would be, without being worse for other values (because that is already classified as "bad parameter sniffing"). My experience when trying to find such an example is that a lot of procedures actually produce the same plan with or without sniffing, and that those procedures that do produce different plans tend to expose bad performance as soon as they are called again with other values.

(The exceptions that I found where parameter sniffing was actually beneficial are in the third section of my post above).

November 3, 2016 3:56 PM
 

123 said:

http://www.ferragamobelt.us.org">http://www.ferragamobelt.us.org

http://www.raybanonlinestore.us.com

http://www.caterpillarboots.us.com

http://www.outletonline-michaelkors.us.org

http://www.yeezy-shoes.us.org

http://www.curry5.us.com">http://www.curry5.us.com

http://www.nikereact.us.com

http://www.yeezy-500.us.com

http://www.katespadehandbags-outlet.us.com

http://www.vans-shoes.us.org

http://www.yeezy-shoes.org

http://www.nikexoffwhite.com

http://www.bapehoodie.us

http://www.oakleysunglassesonline.us.org

http://www.longchamp-bags.us.org

http://www.nikehyperdunk2017.us.com

http://www.offwhite.us.com

http://www.adidasyeezys.us

http://www.nikeoutletstoreonlineshopping.us.com

http://www.nhljerseys.us.org

http://www.lebronjames-shoes.us.com

http://www.pradasunglasses.us.org

http://www.yeezyboost-350.com.co

http://www.yeezyboost-350v2.us.com

http://www.truereligionjeans-outlets.us.com

http://www.michael-kors-handbags.com.co

http://www.hermes-handbags.us.com

http://www.toryburchshoes.org.uk

http://www.michaelkors-outletstore.com

http://www.curry4shoes.us.com

http://www.paulgeorgeshoes.us.com">http://www.paulgeorgeshoes.us.com

http://www.adidasnmd-runner.us.com

http://www.fitflops-saleclearance.us.com

http://www.nfljerseys.us.org

http://www.hermesbelts.co.uk

http://www.nikeairforce1.us.com

http://www.vapormaxshoes.us

http://www.yeezysuk.com

http://www.burberryoutlet-store.us.com

http://www.michaeljordanshoes.us.com

http://www.ultraboost.us.com

http://www.balenciagassneakers.com

http://www.rbsonlinestore.com

http://www.outlettimberland.us.org

http://www.hoganoutletonline.us.com

http://www.nikepolo.us

http://www.longchamphandbagsoutlets.com

http://www.handbagsmichaelkors.com

http://www.goldengoose-sneakers.us

http://www.adidasnmd.uk

http://www.adidassuperstar.org.uk

http://www.kobebasketballshoes.net

http://www.goldengoose-outlet.us.com

http://www.goldengooseoutlet.us

http://www.adidas-pureboost.us.com

http://www.lebron-soldier11.us.com

http://www.mlbjerseyscheap.us

http://www.monclerjacket.net

http://www.yeezy-boosts.us.com

http://www.adidasnmdshoes.co.uk

http://www.kyrie4shoes.us.com

http://www.christian-louboutin.eu.com

http://www.yeezyshoesuk.com

http://www.nike-shox.us.com

http://www.birkinbag.us.com

http://www.oakleysunglassessale.us

http://www.nikeairhuaraches.com

http://www.adidas-tubular.us.com

http://www.adidas-eqt.us.com

http://www.airjordanretro.uk

http://www.guccibelt.us.com

http://www.yeezy-boost350.us.com

http://www.oakleysunglassesformen.us

http://www.goyard.us.com

http://www.nikeflyknitracer.us.com

http://www.louboutinshoes.uk

http://www.vans-outlet.us.com

http://www.kevindurant-shoes.us.com

http://www.oakleysunglassesonlinestore.us.com

http://www.curry5.us

http://www.nike-airforce1.us.com

http://www.nikereact.org

http://www.golden-goose.us.com

http://www.hermesonlineshop.com

http://www.balenciaga.us.com

http://www.hermes-birkin.us.com

http://www.jordanshoes.uk

http://www.yeezy500.us

http://www.calvinkleinoutlet.us.com

http://www.michaelkorsoutletstoresonline.com

http://www.balenciagashoes.us.com

http://www.tomfordsunglasses.us.org

http://www.truereligion-outlets.us.com

http://www.jordan4.us.com

http://www.asicsgelkayano.us.com

http://www.yeezyboost.in.net

http://www.nikesneakers.us.com

http://www.tomford-sunglasses.us.com

http://www.nikebasketballshoes.us.com

http://www.asics-shoes.us.org

http://www.michaelkors-outletfactory.us.org

http://www.chromehearts.net.co

http://www.yeezy-shoes.org.uk

http://www.kobe-shoes.us.com

http://www.cheap-airjordans.us.com

http://www.monclerjackets.us

http://www.goldengoose.us.com

http://www.adidasultra.us.com

http://www.damianlillardshoes.us.com

http://www.longchamp-bag.us.com

http://www.jordan6.us.com

http://www.bape-hoodie.us.com

http://www.goldengoosesneakers.us

http://www.rayban-sunglassesonline.us.com

http://www.jordan12.us.com

http://www.nike-freerun.us.com

http://www.monclerjacketsoutlets.us.com

http://www.yeezy700.us.com

http://www.goldengoose-sneakers.com

http://www.derrickroseshoes.us.com

http://www.nike-airhuarache.us.com

http://www.yeezyboost350v2shoes.us.com

http://www.adidasyeezys.us.com

http://www.adidassuperstar.us.com

http://www.longchamphandbagsonlines.com

http://www.yeezyboost350v2.org.uk

http://www.shoesjordan.us.com

http://www.jordan13.us.com

http://www.nike-airmax2017.us.com

http://www.airmax270.us.com

http://www.michaelkorsoutletonlineus.com

http://www.lebron15shoes.us.com

http://www.michael-kors-handbags.org.uk

http://www.nikehuaracheshoes.us.com

http://www.adidas-nmds.us.com

http://www.outletlacoste.us.com

http://www.adidas-zxflux.us.com

http://www.cheapoakley-sunglasses.us.org

http://www.raybanaviatorsunglasses.org

http://www.linksoflondonus.com

http://www.cheapoakleys.name

http://www.basketball-shoes.us.com

http://www.raybansunglasseswholesale.us.org

http://www.nikeflyknit.us.com

http://www.nikeair-max.us.com

http://www.lebron14.us.com

http://www.jordansforcheap.us.com

http://www.charmspandora.in.net

http://www.michaelkorshandbag.us.org

http://www.nikerunningshoes.us.com

http://www.yeezyboost.com.co

http://www.redbottoms.us

http://www.goyardhandbags.us.com

http://www.supremehoodie.us.com

http://www.nfljerseysstoreonline.com

http://www.adidas-crazyexplosive.us.com

http://www.nike-hyperdunk.us.com

http://www.offwhiteclothing.us.com

http://www.lebron15.net

http://www.nikeshoesformen.us.com

http://www.hardenshoes.us.com

http://www.nikefoamposite.us.com

http://www.filas.us.com

http://www.filashoesonline.com

http://www.lacosteonlineshop.us.com

http://www.pandorabracelet.in.net

http://www.kyrieirving-shoes.us.com

http://www.monclersoutlet.us.com

http://www.linksoflondon.us.com

http://www.adidasiniki.us

http://www.monclerjacketsale.us

http://www.paulgeorgeshoes.us

http://www.cheapnbajerseys.us.org

http://www.mkoutletonlinestore.com

http://www.jordan11retro.us.com

http://www.kyrie4.org

http://www.off-whiteshoes.us.com

http://www.nikedunks.us.org

http://www.converseoutlet.us.com

http://www.lebron-soldier10.us.com

http://www.chromehearts.com.co

http://www.goyard-handbags.us.com

http://www.offwhitexjordan1.com

http://www.nikeairmax2018.us.com

http://www.adidasoutletonline.com

http://www.kobeshoes.uk

http://www.jewelrypandora.in.net

http://www.nikemercurial.us.com

http://www.long-champ.us.com

http://www.russellwestbrookshoes.us.com">http://www.russellwestbrookshoes.us.com

http://www.adidasgazelle.us.com

http://www.michael--korsoutlet.us.org

http://www.lebron13.us.com

http://www.reebokoutlet.us.org

http://www.yslhandbags.net

http://www.michaelkors-outletonlines.us.com

http://www.nike-huarache.com

http://www.airmax90.us.org

http://www.adidasstansmith.us.com

http://www.air-max.us.com

http://www.supremeclothing.us

http://www.fentypuma.us.com

http://www.authenticjordanscheap.us.com

http://www.converse-shoes.us.com

http://www.kobesneakers.com

http://www.hermesbelts.com

http://www.curry4.us.com

http://www.long-champhandbags.org.uk

http://www.kd-10.us

http://www.retro-jordans.us.com

http://www.vibramfivefingers.us.com

http://www.kobebasketballshoes.us.com

http://www.johnwall-shoes.us.com

http://www.nike-airpresto.us.com

http://www.yeezy-boost.us.com

http://www.adidasstansmith.uk

http://www.outletmichael-kors.us.com

http://www.yeezy-shoes.ca

http://www.adidaseqts.com

http://www.adidasultraboost.us.org

http://www.cheaprealjordans.us.com

http://www.chromeshearts.us.com

http://www.nikeairmax270.org

http://www.russellwestbrookshoes.us

http://www.offwhitehoodie.us.com

http://www.adidasnmds.com

http://www.adidasyeezy.co.uk

http://www.toryburchshoes.us

http://www.jordan-retro.us.com

http://www.nikecortez.us.com

http://www.hermes-belt.us.com

http://www.ferragamobelt.us

http://www.adidasyeezys.net

http://www.diorsunglasses.in.net

http://www.yeezyboost-350.uk

http://www.yeezysshoes.us.com

http://www.patriotsjersey.us.com

http://www.adidasstore.us.com

http://www.raybansunglassesoutlets.us

http://www.nike-airmax90.us.com

http://www.kyrie3.us.com

http://www.nike-roshe.us.com

July 1, 2018 11:59 PM
 

hzx said:

http://www.michaelkorsoutletblackfriday.us.com

http://www.michaelkorsoutletdiscount.us.com

http://www.canadagooseoutletsonline.us.com

http://www.michaelkorsoutletwholesale.us.com

http://www.nikeshoesuk.org.uk

http://www.canadagoosejacketsofficial.com.co

http://www.mbtshoesclearanceoutlet.us.com

http://www.uggs-outletstores.us.com

http://www.moncleroutletmoncler.us.com

http://www.canadagoose-outletonline.us.com

http://www.airmax2017.us.org

http://www.raybansunglassesseller.com.co

http://www.polo-ralphlauren-pascher.fr

http://www.adidassuperstars.us.com

http://www.katespade-outlets.in.net

http://www.michaelkorsoutlet-clearances.us.com

http://www.christianlouboutinoutletshoes.us.com

http://www.asics-runningshoes.us.com

http://www.pandoracharmsstore.us.com

http://www.coachfactoryoutletonlinestore.us.com

http://www.coachoutletonlinesofficial.us.com

http://www.ralphlaurenoutletstores.us.com

http://www.canadagoosejacketscanada.ca

http://www.coach-outletcanada.ca

http://www.coachoutletstoreofficials.us.com

http://www.ralphlaurenpolooutlets.me.uk

http://www.pandoracharmssaleclearances.us.com

http://www.pandoracharmsus.us.com

http://www.michael-korshandbags.in.net

http://www.pandoracharmsofficials.us.com

http://www.coach-outletonlineclearance.us.com

http://www.nfljerseyswholesalenike.us.com

http://www.pandoraoutletclearance.us.com

http://www.uggoutletstores.ca

http://www.michael-korsoutlets.org.uk

http://www.canadagooseoutlet-stores.name

http://www.christianlouboutinoutletonlines.us.com

http://www.uggoutletsuggs.us.com

http://www.outletsugg.us.com

http://www.canadagoosejacketsshop.us.com

http://www.pandoraoutlets.us.com

http://www.michaelkorsclearanceoutlet.us.com

http://www.nfljerseysnfl.us.com

http://www.mlbjerseys.net

http://www.pandoraoutletfactory.us.com

http://www.mlbjerseyscom.us.com

http://www.fredperryoutlet.us.com

http://www.fitflopsaleclearance.us.com

http://www.oakleysunglasses.co.uk

http://www.coachoutletonlineoutlet.us.com

http://www.true-religion.us.com

http://www.moncleroutletjackets.us.com

http://www.giuseppezanottioutlet.us.com

http://www.coachoutletsalefactory.us.com

http://www.pandorajewelryorg.us.com

http://www.coachoutletsonlinefactory.us.com

http://www.uggoutletonlineclearances.us.com

http://www.raybansunglassesdesigner.us.com

http://www.canadagoose.name

http://www.nikeshoesforwomen.us.com

http://www.uggsoutletsboots.us.com

http://www.coachfactoryoutlet-stores.us.org

http://www.pandorajewelryclearance.us.com

http://www.coachfactoryoutleta.us.com

http://www.pandoracharmsonlines.us.com

http://www.coachfactoryoutletstoreofficial.us.com

http://www.pandora-jewelryclearance.us.com

http://www.fitflops-saleclearance.us

http://www.canadagoosejacketsstores.org.uk

http://www.louboutinshoesuk.me.uk

http://www.michaelkorsoutletmkr.us.com

http://www.poloralphlaurenonlines.us.com

http://www.uggoutletssale.us.com

http://www.kate-spadeoutlets.us.com

http://www.ralphlauren-saleclearance.org.uk

http://www.raybansunglasseseyewear.us.com

http://www.edhardy.us.org

http://www.redbottomsshoes.us.org

http://www.truereligionjeanoutlet.us.com

http://www.coachoutletfactorysale.us.com

http://www.coachoutletfactorysite.us.com

http://www.nike-shoes.us.org

http://www.michaelkorsoutletkor.us.com

http://www.toryburchoutlet.us

http://www.supremeoutlets.us.com

http://www.ralphlaurenpolos.org.uk

http://www.adidasoutlet.us.org

http://www.nike-shoes.us.com

http://www.lunetterayban.fr

http://www.michaelkorsoutletmichael.us.com

http://www.polooutletstores.us.org

http://www.cheapnfljerseysnfl.us.com

http://www.coachoutletcoachfactoryoutlets.us.com

http://www.katespadeoutletonsale.us.com

http://www.cheapuggsboots.com.co

http://www.michaelkorsoutletks.us.com

http://www.coach-outletonline.us.org

http://www.ralphlaurenpolosale.us.com

http://www.oakley-sunglasses.org.uk

http://www.michaelkorsoutletstoresale.us.com

hzx20180712

July 11, 2018 11:42 PM
 

Yeezy Supply said:

http://www.yeezysupply.us.com/

http://www.jordan11winlike82.us.com/ Jordan 11 Win Like 82

http://www.nikeoutletstoreonlineshopping.us/ Nike Outlet Store

http://www.kyrieirvingjersey.us/

http://www.nike-outlet-store.us/ Nike Outlet Store

http://www.yeezyboost-350.org.uk/ Yeezy

http://www.yeezyboost-350.org.uk/ Yeezy

http://www.yeezybluetint.com/

http://www.monclerjacketsuk.uk.com/ Moncler UK

http://www.nikefactoryoutletonlinestore.us/

http://www.yeezyboost350.us.com/ Yeezy Boost 350

http://www.yeezyboost350.us.com/ Yeezy Boost 350 V2

http://www.cheapnba-jerseys.us/

http://www.balenciaga.me.uk/

http://www.birkenstocks.me.uk/ Birkenstock

http://www.oakleyoutlet.net.co/ Oakley Outlet

http://www.nikenbajerseys.us/

http://www.balenciagauk.org.uk/

http://www.birkenstocks.com.co/

http://www.nike--outlet.us/ Nike Outlet Online

http://www.nike-clearance.us//">http://www.nike-clearance.us// nike clearance

http://www.offwhitejordan1.com/ Off White Jordan 1

http://www.nikeairmax.us/ Nike Air Max

http://www.yeezyboost350.us.com/ Yeezy Boost 350

http://www.balenciagatriples.org.uk/

http://www.nflshopofficialonlinestore.us/

http://www.nike-airmax270.us/

http://www.airmax97.us/ Air Max 97

http://www.salomons.me.uk/

http://www.cheapnflsjerseys.us/

http://www.jordan12bordeaux.us.us/ jordan 12 bordeaux

http://www.yeezy-shoes.us.com/ Yeezys

http://www.nike--shoes.us/ Nike Shoes

http://www.nikeoutletonlinestoreshopping.us.com/

http://www.cs7boots1.com/

http://www.nike--outlet.us/ Nike Outlet

http://www.max2017.us/ Air Max 2017

http://www.moncler-jackets.uk/ Moncler Jackets

http://www.balenciagatrainers.org.uk/

http://www.birkenstock-sandals.us.com/

http://www.yeezyboost350v2.com/ Yeezy Boost 350 V2

http://www.salomonspeedcross4.org.uk/

http://www.nflsjerseys.us/

http://www.jordan12.us/ Jordan 12

http://www.adidasyeezyshoes.org.uk/

http://www.winlike82.us/ Win Like 82

http://www.jordan11winlike82.us/ Jordan 11 Win Like 82

http://www.nike-air.org.uk/

http://www.jordan4.us/ jordan 4

http://www.nike-clearance.us/ Nike Clearance

http://www.basketball-jersey.us/

http://www.moncler-jackets.uk/ Moncler UK

http://www.yeezy-shoes.me.uk/

http://www.chinacheapnfljerseys.us/

http://www.air-max270.us/

http://www.yeezy.com.co/ Yeezy

http://www.max270.us/

http://www.nikeoutletonlineshopping.us/ Nike Outlet Store Online Shoping

http://www.birkenstock.me.uk/ Birkenstock Shoes

http://www.jordan12ovo.us/ jordan 12 ovo

http://www.nikeshoesformen.us/

http://www.max2017.us/ Nike Air Max 2017

http://www.salomon-shoes.org.uk/

http://www.nike-air.me.uk/

http://www.vapor-max.org.uk/

http://www.birkenstocksandalsuk.me.uk/

http://www.nikevapormax.org.uk/

August 23, 2018 5:17 AM
 

Kiaan Roy said:

There are a number of factors to think about when looking at a substantial position for any regional submission factory. Whereas cost may drive initial locality options, within that framework a number of concerns require to be included. These may be

http://assuremoving.in/packers-and-movers-ghaziabad/

http://assuremoving.in/packers-and-movers-faridabad/

September 4, 2018 10:30 PM
 

Kiaan Roy said:

How to Maximize Your Manufacturer Space:  Adding to that stress is the current closing down of many submission centers and the consolidation of factory position for nationwide distributions centers. Here are a many recommendations on ways to get the for the most part of your factory position and stretch those submission center budgets.

http://assuremoving.in/packers-and-movers-ahmedabad/

http://assuremoving.in/packers-and-movers-surat/

September 4, 2018 10:31 PM
 

Kiaan Roy said:

A little market Protection Tips: The need for a little market every day checklist in any factory is a given, until now it is often missing. There are a few essentials when it comes to a little market protection that just about any factory should be capable to implement. Looking at the moment a little market disaster statistics, any factory that uses the little market protection information at the moment available can generate software to build up their factory a safer surroundings for all workers.

http://assuremoving.in/packers-and-movers-thane/

http://assuremoving.in/packers-and-movers-mumbai/

September 4, 2018 10:31 PM
 

Kiaan Roy said:

An effective part like bringing in a certified a little market trainer for a burglar class can build a big difference in the a little market protection history of any of appropriate reputation factory.

http://assuremoving.in/packers-and-movers-bangalore/

http://assuremoving.in/packers-and-movers-hyderabad/

September 4, 2018 10:31 PM
 

Kiaan Roy said:

This is no rocket science, so there is no reason for you to consider too much into it. Conform to easy rules, and you will land where you want. There are many wonderful certified moving and overall look outfits out there in the Bangalore providing best and reliable alternatives. You want to locate them, approach them and strike an agreement with them. That would suffice everything and build sure you are on track with your moving method.

http://assuremoving.in/packers-and-movers-pune/

http://assuremoving.in/packers-and-movers-chennai/

September 4, 2018 10:32 PM
 

Arnav Nihaliay said:

September 6, 2018 11:35 PM
 

Arnav Nihaliay said:

September 6, 2018 11:35 PM
 

Arnav Nihaliay said:

September 6, 2018 11:36 PM
 

Arnav Nihaliay said:

September 6, 2018 11:37 PM
 

chenjinyan said:

http://www.stephen-curryshoes.us.com

http://www.northfaceoutletstore.us.org

http://www.ralphlaurenoutletofficial.us.com

http://www.sauconyshoes.us.com

http://www.babyuggs.us.com

http://www.louboutinchristian.us.com

http://www.miumiusunglasses.com

http://www.airhuarache.fr

http://www.ysl.us.com

http://www.uggclearanceoutlet.us.com

http://www.michaelkorsoutletonsale.us.com

http://www.x-largeclothing.com

http://www.jacketsmoncler.us.com

http://www.nobisjackets.us.com

http://www.vansshoes.us.org

http://www.chaussuresnikeairmax.fr

http://www.pandorajewelrysoutlet.us.com

http://www.cheapjerseys.in.net

http://www.coachoutlet70off.us.com

http://www.polooutletinc.us.com

http://www.outlet-celine.com

http://www.vancleefarpelsjewelry.us.com

http://www.adidasflipflops.us.com

http://www.stephcurryjerseys.com

http://www.the--northface.co.uk

http://www.supra.us.org

http://www.michael-korstaschen.ch

http://www.raybansunglassesoutlet.co.uk

http://www.beatsbydrdresolo.us

http://www.columbiaoutlet.us.org

http://www.canadagoosedownjackets.us.com

http://www.audemarspiguet.us.com

http://www.ferragamooutlet.us.com

http://www.michaelkorshandbagsmacys.us.com

http://www.canadagooses.us.com

http://www.katespade-outlet.in.net

http://www.michaelkorsukstore.co.uk

http://www.adidasoutletstores.com

http://www.redbottoms.us.org

http://www.coachoutletonsale.us.com

http://www.replicawatches.in.net

http://www.oakleysunglasses.ru

http://www.nikeflipflops.org

http://www.adidassuperstarshoes.us.com

http://www.yslmakeup.us

http://www.air-jordanpascher.fr

http://www.michaelkorscom.us.com

http://www.airjordan-14.us

http://nike.outletstore.us.com

http://www.yvessaintlaurentsunglasses.com

201810.10chenjinyan

October 9, 2018 6:41 PM
 

chenqiuying said:

http://www.coachoutletorg.us.com

http://www.pandoracharmssaleclearances.org.uk

http://www.coach-outletstore.eu.com

http://www.canadagoosejacketsco.ca

http://www.coachoutleto.us.com

http://www.mont-blancpensonline.us.com

http://www.coachoutletbags.us.com

http://www.raybansglasses.com.co

http://www.adidasyeezyshoess.us.com

http://www.katespadeonlineoutlet.us.org

http://www.fredperrypolo-shirts.us.com

http://www.ralphlaurenpolos.org.uk

http://www.fitflopsaleclearance.us.com

http://www.toryburchoutletstores.com.co

http://www.christianlouboutinboutique.us.com

http://www.nikekyrie.us.com

http://www.michaelkorsoutletks.us.com

http://www.pandoracharmsstore.us.com

http://www.northfacejackets.org

http://www.michaelkorstaschen.ch

http://www.michaelkors-handbags.in.net

http://www.moncleroutletmoncler.us.com

http://www.kate-spadeoutlet.us.com

http://www.mulberryhandbagss.co.uk

http://www.cheapsnapbacks.us.org

http://www.coachfactoryoutletonlinestore.us.com

http://www.uggoutletssale.us.com

http://www.michaelkorsoutletu.us.com

http://www.pandoraoutletsale.us.com

http://www.canadagooseoutlets.name

http://www.michaelkorsoutletmkr.us.com

http://www.michaelkorsoutletoutlet.us.com

http://www.coachfactoryoutlet.com.co

http://www.canadagooseoutletshop.us.com

http://www.raybansunglasseseyewear.us.com

http://www.adidasyeezy-shoes.us.com

http://www.canadagoosejacketsgoose.org.uk

http://www.canadagoosejacketssale.us.com

http://www.christianlouboutinoff.us.com

http://www.ralphlaurenofficial.us.com

http://www.coachoutletcoachfactoryoutlets.us.com

http://www.truereligionjeanoutlet.us.com

http://www.outlet-uggstores.us.com

http://www.uggcanada.ca

http://www.hermesbirkins.us.com

http://www.michaelkorsfactoryoutletsale.us.com

http://www.poloralphlaurenfactorystores.com

http://www.longchampoutletonlinestore.us.com

http://www.mbtshoes-outlet.us.com

http://www.coachoutletonlinecoach.us.com

chenqiuying20181011

October 10, 2018 6:20 PM
 

aaaa said:

October 17, 2018 11:58 PM
 

Kiaan Roy said:

November 1, 2018 1:02 AM
 

chenlixiang said:

http://www.jordan9.us

http://www.tory--burch.org

http://www.cheap-uggs.in.net

http://www.montre-femme-homme.fr

http://www.versacehandbags.us.com

http://www.jordans.co.nl

http://www.nike-roshe-run.me.uk

http://www.giannisantetokounmpojerseys.us

http://www.timberland-boots.us.org

http://www.moncleroutlet.com.co

http://www.oakley--sunglasses.com.co

http://www.clarisonic.us.com

http://www.goyardhandbag.us.com

http://www.nikeblazer.in.net

http://www.basketball--shoes.net

http://www.uggs-outletboots.in.net

http://www.topnikecanada.ca

http://www.kevin-durantshoes.us.com

http://www.pandora-jewelry.us.com

http://www.saclongchampspascher.fr

http://www.burberrysunglasses.us

http://www.ferragamosunglasses.us

http://www.poloralph.in.net

http://www.nike--huarache.fr

http://www.pandora--charms.in.net

http://www.argentinaworldcupjerseys.com

http://www.nikeshoes.ca

http://www.designersunglassesplus.com

http://www.montrespas-cher.fr

http://www.guccihandbags.in.net

http://www.nikekyrie2.us.com

http://www.roshe--run.com

http://www.truereligionoutlet.in.net

http://www.nikefree.in.net

http://www.dolcegabbana.in.net

http://www.jordanclothing.us

http://www.saclongchamp-pascher.fr

http://www.vanspas-cher.fr

http://www.stuart-weitzman.org

http://www.jerseys.in.net

http://www.michaelkorsoutletmacys.us.com

http://www.cartiersunglasses.com

http://www.nikestore.us.org

http://www.bapeclothing.us

http://www.rosherun.us.org

http://www.soccerjerseys.in.net

http://www.beatspills.us.com

http://www.kyrie4store.us.com

http://www.adidassoccer.in.net

http://www.franceworldcupsoccerjersey.com

http://www.nike--store.fr

http://www.occhiali-oakley.it

http://www.converse.org.uk

http://www.lunette-rayban-pas-cher.fr

http://www.truereligion-jeans.co.uk

http://www.reebok.us.org

http://www.kyrieirvingjerseys.com

http://www.armanijeansoutlet.com

http://www.adidas.in.net

http://www.conversechucktaylor.us

http://www.nikestoreuk.co.uk

http://www.burberry-outlet-online.it

http://www.bracelet-pandora-bijoux.fr

http://www.giuseppezanotti-outlet.us.com

http://www.soccershoes.us.org

http://www.ferragamoshoes.us

http://www.puma--shoes.com

http://www.madridjersey.us.com

http://www.ferragamo.org.uk

http://www.michaelkorsoutletus.us.com

http://www.iphonexcase.us.com

http://www.fivefingersshoes.org

http://www.insanity.in.net

http://www.michaelkorsoutlet.in.net

http://www.antoniobrownjerseys.com

http://www.maccosmetics-uk.co.uk

http://www.seahawksjerseys.us.com

http://www.michaelkorsoutletbest.us.com

http://www.arcteryxjackets.us.com

http://www.jordan1.us.com

http://www.jimmychoo.us.com

http://www.louboutin-pas-cher.fr

http://www.omegawatches.org.uk

http://www.jordan31.org

http://www.ed-hardy.in.net

http://www.kate-spadeoutlet.com.co

http://www.jimmychoosunglasses.us

http://www.airzoompegasus.us

http://www.tommyhilfigeroutlet.net

http://www.dieseljeans.us.com

http://www.newbalance-shoes.in.net

http://www.softballbats.us.com

http://www.mizunowave.net

http://www.lunetteraybanpascher.fr

http://www.prada.me.uk

http://www.jordan7.us.com

http://www.dansko.in.net

http://www.karenmillen.org.uk

http://www.weddingdresses.me.uk

http://www.nikeair-max.it

2018.11.21chenlixiang

November 20, 2018 10:48 PM

Leave a Comment

(required) 
(required) 
Submit

About Hugo Kornelis

Hugo is co-founder and R&D lead of perFact BV, a Dutch company that strives to improve analysis methods and to develop computer-aided tools that will generate completely functional applications from the analysis deliverable. The chosen platform for this development is SQL Server. In his spare time, Hugo likes to visit the SQL Server newsgroups, in order to share and enhance his knowledge of SQL Server.
Privacy Statement