ETL #73–NULL or NOT NULL and SQL Interview Questions
Today is the day after Thanksgiving. There are many things to be thankful so I decided to write a short...
2016-11-25
629 reads
Sherry Li's BI Corner
MDX – Putting Visual Totals on top or at the bottom
Dynamically totaling child members
Putting the dynamic totals on top or at the bottom can be a trivial or a big...
2016-03-31
1,203 reads
Enormous response from the last promotional campaign
After I posted this blog MDX Cookbook is a popular book, I received another email from my MDX book publisher.
...
2016-03-24
385 reads
When a calculated measure is added NON EMPTY stopped working
We use NON EMPTY key word on the rows axis to remove rows with NULL values. It works only when all...
2016-04-04 (first published: 2016-03-24)
2,443 reads
Consider removing the NON EMPTY key word from the COLUMNS axis
You might have seen error message like this from a SQL job that pulls data from an OLAP cube using...
2016-03-14 (first published: 2016-03-08)
2,237 reads
MDX Cookbook is a popular book
I cannot believe that I have not posted any blog since May 2015! It’s been a busy few months for...
2016-02-16
1,068 reads
MDX #46–6 different ways to detect a particular member in MDX script
There are many great tips in MDX with SSAS 2012 Cookbook
The book MDX with SSAS 2012 Cookbook has many great...
2015-05-14
1,660 reads
ETL #72–Your data can mysteriously disappear after a WHERE clause was added (2)
Why a seemingly innocent WHERE clause can cause large amount of data missing
In the previous post, ETL #71–Your data can...
2015-05-12 (first published: 2015-05-03)
6,248 reads
ETL #71–Your data can mysteriously disappear after a WHERE clause was added (1)
Validations at end of ETL indicate missing data
At the end of each ETL job, I always run some sort of...
2015-04-24
866 reads
SQL #58–Where are my own templates in SQL Server Management Studio 2012
The secrete SQLFile.sql
We are all so used to clicking on the New Query icon (or the keyboard shortcut Ctrl+N). We know it...
2015-02-02 (first published: 2015-01-27)
13,436 reads
Blogs
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data compare between 2 tables with same structure for any changes after etl run
i have huge table with lot of data and is also wide. i took...
Question of the Day
Creating a JSON Document II
I want to create a JSON document that contains data from this table:
TeamID TeamNameCity YearEstablished 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960If I run this code, what document(s) is/are returned?
SELECT json_objectagg( n.city : n.TeamName) FROM dbo.NFLTeams;See possible answers