Learn Datawarehousing Here

This blog remains as a handout for all warehouse & etl professionals

Order of execution of SQL

Order of execution of sql
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Datawarehousing Concepts

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      • Types of ETL testing
      • How to run datastage Job from Unix
      • Datastage Scenarios
      • Orchadmin in Datastage
      • Datstage Common Errors and Solutions
      • Business Intelligence Process
      • Datastage 8.5 v certification Dump
      • Datastage User Manual
      • Order of execution of SQL
      • Datawarehousing in 4 stages A conventional metod
      • What are Dimensions and Measures?
      • Subqueries in SQL
      • Few Complex SQL Queries
      • Benefits of implementing a perfect DWH
      • Codds rules
      • Basic Practical Perl Tutorial
      • Shell Scripting
      • Datastage 8.7 Sample job creation
      • Newfeatures in Datastage 8.5
      • AWK programming
      • Teradata Utilities
      • Real time Usage of Grep
      • Regular expressions in Unix
      • Unix Architecture
      • VI Editor in Unix
      • Introduction to unix and basics
      • Tortoise Subversion
      • etl & data integration
      • SQL PERFORMANCE TUNING
      • Teradata Introduction
      • Execution of a sql
      • String Functions in SQl
      • How do Joins work in SQL?
      • Datastage Sample parallel Job creation
      • Parallell processing in datastage
      • Refrential Integrity
      • Normalisation in a Database
      • Types of Data
      • Data Dictionary of a warehouse
      • HLD OVERVIEW
      • Incremental loading in a Warehouse
      • OLTP vs OLAP
      • Staging area in a Datawarehouse
      • What is an ETL Tool?
      • ER MODELLING
      • Facts & Dimensions
      • Snow Flake Schema
      • What is star schema?
      • Why you need datamart?
      • Slowly changing dimension
      • High level Overview of datawarehousing

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