Wiki Page: Querying and Loading JSON Data into Oracle Database with Oracle...
Oracle XQuery Engine for Hadoop was introduced in an earlier tutorial . The JSON Adapter for Oracle XQuery for Hadoop queries data in a JSON document or a JSON text file as XML in HDFS using XQuery....
View ArticleWiki Page: Getting Started with Oracle XQuery for Hadoop
By Deepak Vohra XML is the standard medium of data exchange on the web and used by web services. XQuery (An XML Query Language) is a query language based on the XML structure to define queries on data...
View ArticleWiki Page: Storing and Querying XML as Avro in Oracle NoSQL Database with OXH
In an earlier article we discussed Storing and Querying XML in Oracle NoSQL Database with OXH 3.0.0 . In this article we shall store XML as Avro records in Oracle NoSQL Database and subsequently access...
View ArticleWiki Page: Storing and Querying Text Data in Oracle NoSQL Database and...
Oracle NoSQL Database is a distributed, flexible data model, key -value based database in which the value abstraction layers is either binary, JSON (Avro) or table structure. Oracle XQuery for Hadoop (...
View ArticleWiki Page: Using MySQL Database as Apache Tajo Catalog Store
Written by Deepak Vohra Apache Tajo is a distributed data warehouse system for Apache Hadoop, designed to store large data sets in HDFS and other data sources, and a SQL query processing engine with...
View ArticleWiki Page: Using Oracle Database as Catalog Store for Apache Tajo
Written by Deepak Vohra Apache Tajo is a distributed data warehouse system for Apache Hadoop. If you only know SQL for a query language Apache Tajo is the framework for you as it fully supports the SQL...
View ArticleWiki Page: Storing JSON in Oracle NoSQL Database using Avro Schemas
Written by Deepak Vohra Oracle NoSQL database stores data as key-value pairs, each key-value pair being a record. Oracle NoSQL database provides Avro schemas to define the data schema for a record’s...
View ArticleWiki Page: Using Oracle Database with CDH 5.2 Sqoop 1.4.5
Written by Deepak Vhora In an earlier tutorial on using Oracle Database with Sqoop the Sqoop (Apache Sqoop 1.4.1 incubating), Oracle Database (Oracle Database 10g Express Edition), Apache Hadoop...
View ArticleWiki Page: Using Sqoop with MySQL Database
Written by Deepak Vohra MySQL database is one of the most commonly used databases, second only to Oracle Database. Hadoop ecosystem is commonly used for processing and storing/archiving MySQL data. To...
View ArticleWiki Page: Transferring Bulk Data between Oracle Database and Hadoop...
Written by Deepak Vohra In an era of big data, transferring big data between different components of big data analytics ecosystem is a common requirement. Sqoop is a top-level Apache project for bulk...
View ArticleWiki Page: Streaming Data from one Oracle Database Table to Another
Written by Deepak Vohra A common use case is to copy data from one Oracle Database table to another. One option is to use the CREATE TABLE AS SELECT SQL statement, which creates a new table with the...
View ArticleWiki Page: Integrating Apache Solr Data into Oracle Database in Oracle Data...
Integrating Apache Solr Data into Oracle Database in Oracle Data Integrator 11g Apache Solr is a search & index engine providing fast indexing and full-text search. Solr is the most commonly used...
View ArticleWiki Page: Exadata Write-back Flash Cache
About Exadata Write-Back Flash Cache By defaults, Exadata Database Machine operates in WriteThrough mode, in which it only caches the read IOs to the PCI flash. Write-Back Flash Cache (WBFC) provides...
View ArticleWiki Page: Architecture of immutable data stores
Written by: Juan Carlos Olamendy Turruellas Introduction In this article, I want to talk about another hot topic today in DevOps ecosystem, immutability . I want to share some insights, reflection and...
View ArticleBlog Post: Oracle12 In-Memory Feature
Hi! One of Oracle12’s new features is the in-memory feature. Oracle Corp purchased the Times10 memory resident database a number of years ago and has adapted it (I think ‘adapted…’) to this new feature...
View ArticleBlog Post: Oracle SQL*Plus History and Features
Hi, I’ll share a little Oracle history along the way…just to mix up the blog content a bit and give a personal touch to things. I’ve been working with the Oracle RDBMS since version 4.1. This was the...
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