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
623 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)
2,435 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
1,196 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
383 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)
2,230 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
1,061 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
1,651 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)
6,241 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
857 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)
13,428 reads
Blogs
Advice I Like: Fear and Imagination
By Steve Jones
Fear is fueled by a lack of imagination. The antidote to fear is not...
Cloud Data Driven User Group 2025 – Slides & Scripts
The slidedeck and the SQL scripts for the session Indexing for Dummies can be...
Leading Through Change: Guiding Teams in Times of Uncertainty
By Chris Yates
Change is not a disruption in technology; it is the rhythm. New frameworks appear,...
Forums
Building AI Governance and Policies- First Steps
Comments posted to this topic are about the item Building AI Governance and Policies-...
Simple delete causes table scan on other tables with foreign key
Why is sql doing a full scan VS seeking on the index? I've included...
Show/Hide number of rows in table
We have a report that has multiple tables that list the top 15 performers...
Question of the Day
Checking Identities
The DBCC CHECKIDENT command is used when working with identity values. I have a table with 10 rows in it that looks like this:
TravelLogID CityID StartDate EndDate 1 1 2025-01-11 2025-01-16 2 2 2025-01-11 2025-01-16 3 3 2025-01-11 2025-01-16 4 4 2025-01-11 2025-01-16 5 5 2025-01-11 2025-01-16 6 6 2025-01-11 2025-01-16 7 7 2025-01-11 2025-01-16 8 8 2025-01-11 2025-01-16 9 9 2025-01-11 2025-01-16 10 10 2025-01-11 2025-01-16The docs for DBCC CHECKIDENT say this if I run with only the table parameter: "If the current identity value for a table is less than the maximum identity value stored in the identity column, it is reset using the maximum value in the identity column. " I run this code:
DELETE dbo.TravelLog WHERE TravelLogID >= 9
GO
DBCC CHECKIDENT(TravelLog, RESEED)
GO
INSERT dbo.TravelLog
(
CityID,
StartDate,
EndDate
)
VALUES
(4, '2025-09-14', '2025-09-17')
GO
What is the identity value for the new row inserted by the insert statement above? See possible answers