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
632 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
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
1,206 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
386 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
1,661 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)
6,250 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)
13,441 reads
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Creating a JSON Document IV
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Restoring Azure Key Vault Keys and Validating SQL Server TDE Recovery: Level 7 of the Stairway to TDE
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Permissions Removal When Changing Object Schema
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Question of the Day
Creating a JSON Document IV
I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT YearEstablished, json_objectagg(city : TeamName) FROM dbo.NFLTeams GROUP BY YearEstablished;See possible answers