microstrategy-tutorials.blogspot.com

oracle-datawarehousing.blogspot.com

Compare OLTP and Data Warehousing Environments ~ ORACLE DATAWAREHOUSE

http://oracle-datawarehousing.blogspot.com/2011/02/compare-oltp-and-data-warehousing.html

All about Data Warehousing with Oracle. Error Logging and Handling. Compare OLTP and Data Warehousing Environments. Following figure shows the key differences between OLAP and DataWarehousing Environments. One major difference between the types of system is that data warehouses are not. Usually in third normal form (3NF), a type of data normalization common in OLTP. Data warehouses and OLTP systems have very different requirements. Here are some. 9632; Data modifications. 9632; Schema design. OLTP system...

oracle-datawarehousing.blogspot.com

Data Warehouse Architectures ~ ORACLE DATAWAREHOUSE

http://oracle-datawarehousing.blogspot.com/2011/02/data-warehouse-architectures.html

All about Data Warehousing with Oracle. Error Logging and Handling. Data warehouses and their architectures vary depending upon the specifics of an. Organization's situation. Three common architectures are:. 9632; Data Warehouse Architecture (Basic). 9632; Data Warehouse Architecture (with a Staging Area). 9632; Data Warehouse Architecture (with a Staging Area and Data Marts). Data Warehouse Architecture (Basic). Warehouses because they pre-compute long operations in advance. For example, a. Your warehou...

cognos-tutorials.blogspot.com

Cognos Tutorials For Beginners - Easy Steps: Integrating with Other IBM Cognos Products

http://cognos-tutorials.blogspot.com/2014/02/integrating-with-other-ibm-cognos.html

Cognos Tutorials For Beginners - Easy Steps. Best online resource for Cognos Tutorials. Using Report Studio, report authors create, edit, and distribute a wide range of professional reports. They can also define corporate-stand. How Cognos Business Intelligence Works. When you view or create a report, you are viewing data stored in your organizations databases. The following diagram explains the step. Cognos 8 Business Intelligence Certifications. Integrating with Other IBM Cognos Products. To download, ...

mapreduce-tutorial.blogspot.com

MapReduce Tutorial: April 2011

http://mapreduce-tutorial.blogspot.com/2011_04_01_archive.html

Using Amazon Web Services. Hadoop's power comes from its ability to perform work on a large number of machines simultaneously. What if you want to experiment with Hadoop, but do not have many machines? While operations on a two or four-node cluster are functionally equivalent to those on a 40 or 100-node cluster, processing larger volumes of data will require a larger number of nodes. After the cluster has been started, you can log in to the head node over ssh with the bin/hadoop-ec2 login script, and pe...

pig-tutorial.blogspot.com

Pig Tutorial: Introduction

http://pig-tutorial.blogspot.com/2011/04/introduction.html

Pig is a platform for analyzing large data sets. Pig's language, Pig Latin, lets you specify a sequence of data transformations such as merging data sets, filtering them, and applying functions to records or groups of records. Users can create their own functions to do special-purpose processing. Pig Latin programs execute in a distributed fashion on a cluster. Our current implementation compiles Pig Latin programs into Map/Reduce jobs, and executes them using Hadoop on Kryptonite. Loading Data Into Pig.

pig-tutorial.blogspot.com

Pig Tutorial: Pig Latin

http://pig-tutorial.blogspot.com/2011/04/pig-latin.html

The programming language used to write Pig queries is called Pig Latin. The MapReduce programming model can be thought of as composed of three distinct phases:. 1 Process input records. 2 Form groups of related records. 3 Process groups into outputs. Subscribe to: Post Comments (Atom). Loading Data Into Pig. Pig Latin Data Types. Simple template. Powered by Blogger.

ab-initio-tutorials.blogspot.com

AB INITIO TUTORIALS: Ab Initio Best Practices

http://ab-initio-tutorials.blogspot.com/2010/06/ab-initio-best-practices.html

Best online resource for Ab Initio Tutorial Tutorials. At Tutorial Blogs we value your opinion - Please Respond- Click Here. Ab Initio Best Practices. These are general guidelines that is ideal to implement in Ab Initio projects involving development, maintenance, testing activities. These are tips collected from various other sources from the net as well as from expert Ab Initio developers. Project access control - Checking In and Checking out practices. Any database related activities and problems shou...

pig-tutorial.blogspot.com

Pig Tutorial: April 2011

http://pig-tutorial.blogspot.com/2011_04_01_archive.html

The Pig tutorial shows you how to run two Pig scripts in Local mode and Hadoop mode. Local Mode: To run the scripts in local mode, no Hadoop or HDFS installation is required. All files are installed and run from your local host and file system. Hadoop Mode: To run the scripts in hadoop (mapreduce) mode, you need access to a Hadoop cluster and HDFS installation available through Hadoop Virtual Machine provided with this tutorial. Java Installation (Note: already set-up on the Hadoop VM.). 1Go to the /home...

pig-tutorial.blogspot.com

Pig Tutorial: Pig Latin Data Types

http://pig-tutorial.blogspot.com/2011/04/pig-latin-data-types.html

Pig Latin Data Types. Values in Pig Latin can be expressed by four basic data types:. An atom is any atomic value (e.g., "fish"). A tuple is a record of multiple values with fixed arity. e.g., ("dog", "sparky"). A data bag is a collection of an arbitrary number of values. e.g., {("dog", "sparky"), ("fish", "goldie")}. Data bags support a scan operation for iterating through their contents. A data map is a collection with a lookup function translating keys to values. e.g., ["age" : 25].

ab-initio-tutorials.blogspot.com

AB INITIO TUTORIALS: Tuning Tips

http://ab-initio-tutorials.blogspot.com/2014/02/tuning-tips.html

Best online resource for Ab Initio Tutorial Tutorials. At Tutorial Blogs we value your opinion - Please Respond- Click Here. Ab initio Tuning Tips. All the sort components use memory while the code is running. Due this memory usage “sort” components slows down the process. So it is suggested not to use “sort” components. Lookup File associates key values with corresponding data values to index records and retrieve them. Deadlock occurs when a program cannot progress. It depends on the patterns of you...