Rank (): RANK function is used to rank the repeating values in a manner such that similar values...

Redshift query basics: The maximum size for a single Amazon Redshift SQL statement is 16 MB Some...

GnuPG is a GNU’s tool for secure communication and data storage and it’s a command line tool. Most...

Truncate removes all the rows from a table. Delete with a where clause can delete rows (as...

Creating the User Group and add the members to the User Group in Cognos Log on to the Cognos...

Data sets are not static. They are constantly being updated, which can affect the quality of data....

Source Analyzer: Step 1: Go to tools menu select source menu select Source analyser files from...

Introduction: In this document, we are going see the flow of query processing and result caching...

What Is Compression? Compression is a column-level operation that reduces the size of data when it...

Sometimes Tableau will not recognise one or more of the location names in your data. When this...

Introduction: HAProxy, which stands for High Availability Proxy. Its most common use is to improve...

JOINS: Join is used to combine one or more tables, from tables based on condition (Common fields)....