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Hands-on practice for joining multiple SCD2 tables to make consolidated SCD2 in Data Warehousing
Concept of SCD-2 Slowly Changing Dimension (SCD) SCD Type 1: Overwrites the existing value with the new value and does not retain history. SCD Type 2: Adds a new row
Book Learning Elastic Stack 7.0 released!
Elastic Stack 7.0 was released in April 2019 with many new features. After the success of the of the first book Learning Elastic Stack 6.0, the second edition of the
How Hadoop and Spark Are Transforming Data Warehousing
Traditional data warehouses cannot handle big data. Hadoop, Spark, Impala, Parquet and SQL on Hadoop will play big role in data warehouse modernization. The nature of data that enterprises have
Releasing Soon! Learning Elastic Stack 6.0
The book Learning Elastic Stack 6.0 is available for pre-order. Here is what to expect from the book. Elasticsearch has been at the forefront of the big data movement. Since
