AWS Big Data

OCTOBER 30, 2024

All new sales transactions for 2003-01-01 are automatically ingested, which can be verified by running the following query: SELECT ss_sold_date_sk, count(1) FROM store_sales GROUP BY ss_sold_date_sk; Automate ingestion from multiple data sources We can also load an Amazon Redshift table from multiple data sources.

Data Warehouse 113

Data Warehouse Sales Data Lake Recreation/Entertainment 113

Cloudera

FEBRUARY 8, 2024

Queries containing joins, filters, projections, group-by, or aggregations without group-by can be transparently rewritten by the Hive optimizer to use one or more eligible materialized views. Materialized views can be partitioned on one or more columns. This can potentially lead to orders of magnitude improvement in performance.

Snapshot 91

Snapshot Metadata Cost-Benefit Data Warehouse 91

CIO Business Intelligence

MARCH 9, 2022

Despite the worldwide chaos, UAE national airline Etihad has managed to generate productivity gains and cost savings from insights using data science. Etihad began its data science journey with the Cloudera Data Platform and moved its data to the cloud to set up a data lake. Reem Alaya Lebhar.

Data Science 98

Data Science Data Lake Cost-Benefit Digital Transformation 98

erwin

JUNE 7, 2022

The first and most important thing to recognize and understand is the new and radically different target environment that you are now designing a data model for. Star schema: a data modeling and database design paradigm for data warehouses and data lakes. Don’t obstruct the optimizer from seeing it’s a star schema.

Data Warehouse 52

Data Warehouse Modeling Sales Data Lake 52