What is Master Data Management?
Sometimes, it is not possible to even comprehend the complexity of big companies like Exxon Mobil. Just imagine how data … Read More →
View ArticleWhat are the steps to benchmark a SAS program?
From a pure software development standpoint, efficiency of a SAS program is usually determined by: Volume of data to be … Read More →
View ArticleWhat is a SAS OLAP Cube?
Definition: An OLAP cube is a multi-dimensional data store that contains pre-summarized data. OLAP cubes support ad-hoc business reporting since … Read More →
View ArticleWhat is the purpose of Impact Analysis in SAS Data Integration Studio?
If A has an impact on B and B has an impact on C, it is logical to deduce that … Read More →
View ArticleWhat Is A Julian Day In Oracle?
To begin with, Oracle date range is from January 1st, 4712 BC to December 31st, 9999. A Julian day number … Read More →
View ArticleWhat is the purpose of the analytical function, “ROW_NUMBER”, In Oracle?
SQL-related analytical functions are very common in the world of Big Data. For instance, there is always a need to … Read More →
View ArticleWhat is the difference between in-database analytics and traditional analytics?
It is a common practice to extract data from a database so that analytics could be performed on it. The … Read More →
View ArticleWhat Is A Three-Level Naming Notation In Netezza?
In Oracle, unless a database table is global in scope, the table is usually accessed in the following notation: schema … Read More →
View ArticleWhat Are CLI Commands In Netezza?
CLI stands for command line interface. All Netezza CLI commands can be run on a Netezza host while there are certain CLI … Read More →
View ArticleWhat Are The Differences Between SQL Analytical Functions RANK, DENSE_RANK...
We read on applications of analytical function, ROW_NUMBER, in a prior blog. We will now focus on related analytical functions called RANK and DENSE_RANK and its differences with each … Read More →
View ArticleWhat Is A Materialized View In Netezza?
Disclaimer: Although materialized views are a part of many databases, Netezza has been used as an illustration for this article. A view is a … Read More →
View ArticleWhat Is SAS University Edition?
SAS, until May of 2014, had not offered free use of its software outside of academia. But that has changed … Read More →
View ArticleDescriptive versus inferential statistics
I am back from hibernation and this time, I would like to indulge in another topic where SAS is extensively … Read More →
View ArticleStatistical sampling in SAS
In my prior blog, I had references on sample as applicable to statistics. In this blog, I will discuss sampling in … Read More →
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SAS versus R : using lists
I have an extensive background in Base SAS and SAS suite of tools. But R is fairly new to me and I’ve been studying it in my spare time. I figure the best way to learn R is to compare it with SAS. I...
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SAS versus R : using arrays
In a general programming language, an array is considered to be a data structure which stores variables of similar data type. In SAS, this is not the case. An array is only a compile-time statement and...
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SAS versus R : how to generate random numbers
In SAS, “ranuni” function can be used to generate random numbers between 0 and 1 inclusive. Hence, if there is a request to generate random numbers from 1 to 5 inclusive, it is possible to multiply by...
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