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The Latest Databases Topics

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Dealing With MySQL Error Code 1215: ''Cannot Add Foreign Key Constraint''
Good old error 1215 is common enough, but MySQL doesn't give you the reason behind it. Fortunately, there are literally a dozen ways to dig deeper,
April 10, 2017
by Marcos Albe
· 98,036 Views · 5 Likes
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Making Spring Web Services With Scala
Together, Spring and Scala can create simple, scalable, secure, robust web services that should be at home in the JVM ecosystem.
April 8, 2017
by Praneeth Ramesh
· 54,595 Views · 13 Likes
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Vaadin Application Performance Issues and Solutions
Learn about the challenges that come with building a high-performance and scalable enterprise application as well as how to overcome those challenges.
April 7, 2017
by Satyaranjan Das
· 14,420 Views · 6 Likes
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Monitoring Microservices With Spring Cloud Sleuth, ELK, and Zipkin
With tools like Spring Cloud Sleuth, ELK, and Zipkin, monitoring microservices doesn't have to be as difficult of a task as it usually is.
April 7, 2017
by Piotr Mińkowski
· 65,264 Views · 24 Likes
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Need Billions of Web Pages? Don't bother Crawling.
How to get started using free, preprocessed CommonCrawl web crawl datasets that you could use for machine learning, natural language processing, and more.
April 6, 2017
by Julien Nioche
· 38,313 Views · 2 Likes
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Spring Boot and web3j: Easy Microservices for Ethereum Blockchain
web3j seamlessly integrates with Spring Frameworks. Simply create a new Spring Boot app, add the starter to your configuration, and create a service with web3j.
April 6, 2017
by Conor Svensson
· 12,246 Views · 8 Likes
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MySQL: The Problem With Synthetic Primary Keys
MySQL manages primary keys as clustered indexes. That means you're looking a performance hit with some synthetic primary keys. Here's when to avoid them.
April 6, 2017
by Keith Gregory
· 7,768 Views
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Spring Boot Entity Scanning
If your packages aren't in the right place, you're going to have a bad time. See how to tell Spring where your entities are so they don't get lost in the fray.
April 5, 2017
by Dan Vega
· 117,050 Views · 15 Likes
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How to Use Custom Filters in SQL Compare
Custom filters in Redgate's SQL Compare give you more control over the visibility of your tables and the objects stored inside them.
April 5, 2017
by Steve Jones
· 5,599 Views · 1 Like
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In-Memory MapReduce and Your Hadoop Ecosystem: Part I
Learn about in-memory MapReduce, the Ignite in-memory file system, and the Hadoop file system cache. Also learn how to install and configure Hadoop and Ignite.
April 4, 2017
by Shamim Bhuiyan
· 7,684 Views · 4 Likes
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AWS Lambda: Programatically Create a Python ‘Hello World’ Function
In this post we take a look at how to quickly create a Python function using AWS Lambda, including their configurations and uploading them to the service.
April 4, 2017
by Mark Needham
· 18,585 Views · 4 Likes
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Java Platform and Java Community Process Overview
In this article, let's embark on a brief explanation of the Java platform and the community process that is responsible for evolving it.
April 4, 2017
by Bruno Krebs
· 14,553 Views · 14 Likes
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Spring Data With JPA and @NamedQueries
Let's dive into using named queries for JPA entities. The @NamedQuery annotation allows for finer control and enhanced functionality for your databases.
April 3, 2017
by Emmanouil Gkatziouras DZone Core CORE
· 59,515 Views · 8 Likes
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Using Apache POI to Read Excel
If you use Excel data in your work, the Apache POI library is a great way to read, incorporate, and format your data in Excel spreadsheets.
April 3, 2017
by Jay Sridhar
· 59,113 Views · 24 Likes
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Apache Spark: Setting Up a Cluster on AWS
You can augment and enhance Apache Spark clusters using Amazon EC2's computing resources. Find out how to set up clusters and run master and slave daemons on one node.
April 3, 2017
by Jay Sridhar
· 22,079 Views · 8 Likes
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An Insider’s View of MySQL Group Replication
Get a good look at how MySQL enables high availability through its Group Replication plugin from the leader of the replication team.
March 31, 2017
by Wei-Chen Chiu
· 7,293 Views · 3 Likes
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Understanding and Monitoring Dependencies in Cloud Applications
Learn how to make sense of IaaS architecture, identifying API usage in apps, monitoring external services, dependencies, and APIs, and tackling dependencies.
March 31, 2017
by Nick Kephart
· 8,615 Views · 3 Likes
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Aggregate Pattern
Aggregates are all about transactional consistency. When there is a strong consistency rule between multiple entities, we make one of them responsible for enforcing it.
March 31, 2017
by Grzegorz Ziemoński
· 58,544 Views · 46 Likes
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5 Data Tasks That Keep Data Engineers Awake at Night
When it comes to integrating and managing data, there are quite a few tasks that are downright tedious. Data engineering is a tough job, but somebody's gotta do it!
March 30, 2017
by Yaniv Leven
· 7,773 Views · 6 Likes
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Picture Perfect: Choosing Your Featured Image
You've written an awesome article, and now you need an equally awesome image. In this article, we share suggestions for selecting the right featured photo for your post.
March 30, 2017
by Kristen Pagan
· 4,101 Views · 4 Likes
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