David Cassel (@dmcassel) profile picture

Entrepreneur helping customers maximize from MarkLogic; soccer fan; family guy. Author of the MarkLogic Cookbook.

Downingtown, PA
Joined September 2008
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Need help implementing your @MarkLogic project? 4V Services, LLC is ready.
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.@mls Watching #MTLvPHL on #MLSSeasonPass I have a simple request -- if the ball is in play, give us the wide view. Save the close-ups for dead balls and replays -- and get back to the action on time!
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I'm #hiring -- looking for someone with Apache NiFi experience. linkedin.com/jobs/view/30705…
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I'm looking to hire a @marklogic developer. If you're interested in Big Data/NoSQL and looking for your next opportunity -> linkedin.com/hiring/jobs/289…
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When you use @MarkLogic's Hub Central to build entities, it automatically creates a TDE template with a view for you. If you see "SQL-TABLENOTFOUND -- Unknown table", here's what's happening. 4vservices.com/2021/11/18/td…
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Looking for a @MarkLogic developer with strong #semantics skills to work with one of my clients 15-20 hours per week. If that's you, please get in touch!
I'm looking to hire a @marklogic developer -- if you'd like to work with a small but supportive team doing interesting work, let me know! linkedin.com/jobs/view/26944…
I learned a little wrinkle today about how @MarkLogic's sem.sparqlUpdate function handles write locks. Thought it might be helpful to others, so I wrote it up: 4vservices.com/2021/10/06/sp…
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Peer reviews are SOP for source code. What should you look for in an @apachenifi flow? 4vservices.com/2021/07/20/pe…
Take control of your locks to prevent the Lost Update problem in @MarkLogic 4vservices.com/2021/05/20/ma…
In @apachenifi, EvaluateJsonPath is great but requires a static path. A client need to pull a value from JSON where the name of the property is in an attribute, so I wrote up how to do it. 4vservices.com/2021/04/22/se…
Version 1.9.1.6 of @MarkLogic's NiFi Connector has been released with some good bug fixes. Looking forward to getting this version into use at my clients!
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I definitely believe this. I like to let my idea generation run wild. Maybe someday I'll have a good one. :)
"If you want to have good ideas, you must have many ideas." — Linus Pauling
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You have big plans for what you can do with @MarkLogic. You've already got a great team of developers. So why do you need 4V Services? 4vservices.com/2021/02/23/wh…
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I just taught my auto-mechanic-in-training daughter to convert between decimal and binary. And then how to do it on a calculator, because who does that on paper? :)
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Congratulations to @MarkLogic for a big win!
Proud to announce that the U.S. Air Force has awarded @MarkLogic Prime Contractor Position on the Advanced Battle Management Systems (ABMS). Data integration is critical in the $950m effort towards a unified force. lnkd.in/drDCrNX
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Working with @MarkLogic, it's natural to use XQuery for XML and JavaScript for JSON, but sometimes it's useful to cross the boundaries. I wrote up some notes on using XQuery to work with JSON: 4vservices.com/2020/10/05/wo…
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First blog post in a while: doing a search for just one result in @MarkLogic 4vservices.com/2020/09/17/se…
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anybody know of a publicly available American/British English dictionary that can be used for query expansion?