Drop Database Objects Practically Risk-Free!
FIRST OF A TWO PART SERIES Some months ago, a fellow DBA came to me and expressed her concern over the normal housecleaning process that occurred at her company. ...
The...
2019-04-17
T-SQL
Find Occurrences of a String Anywhere on an Instance
Have you ever had a conversation like this? Developer: “Hey, we’d like to know every place a particular column is used”. You: “On which database?” Developer: “Ummm….all of them, please.”
2019-04-17
The Sins of SELECT * (BP005)
If Prompt warns you of use of the asterisk, or 'star' (*), in SELECT statements, consider replacing it with an explicit column list. It will prevent unnecessary network load...
2019-04-17
Window Functions vs GROUP BYs
There are many options available for improving the performance of a query: indexes, statistics, configuration settings, etc… However, not all environments allow you to use those features (eg. vendor...
The...
2019-04-16
Database Fundamentals #21: Using the JOIN Operator, OUTER JOIN
The OUTER JOIN returns one complete set of data and then the matching values from the other set. The syntax is basically the same as INNER JOIN but you...
2019-04-15
Extract the Path from Filename in SQL
While I was preparing an article, I faced the challenge to extract the path from a filename in SQL Server. It’s an interesting challenge with many possible uses, so I...
2019-04-13
Why Rolling back inserts with Identity columns is a bad idea.
It wasn’t until the other day that I realised what the behaviour was when rolling back a transaction with an insert on a table with an identity column, to...
2019-04-11
The Difference Between SQL’s JOIN .. ON Clause and the Where Clause
A question that is frequently occurring among my SQL training‘s participants is: What’s the difference between putting a predicate in the JOIN .. ON clause and the WHERE clause?...
2019-04-09
Writing Crossword puzzles with a database: T-SQL Tuesday #113
Todd Kleinhans (b/t) is host for T-SQL Tuesday this month and wants us to talk about how we use databases ... Continue reading
The post Writing Crossword puzzles with a...
2019-04-09
Data Type Precedence and Implicit Conversions
SQL Server needs to make sure data types match when performing operations that involve multiple pieces of data. When the data types do not match, SQL Server has to...
The...
2019-04-09
Blogs
Why your data still can’t answer a simple question
Every organization I talk to has the same problem dressed up in different clothes....
T-SQL Tuesday #197 Invitation – An impactful session or two from a conference
By DataOnWheels
I am delighted to host this month’s T-SQL Tuesday invitation. If you are new...
Did You Really Name That Default?
By alevyinroc
Ten years (and a couple jobs) ago, I wrote about naming default constraints to...
Forums
The day-to-day pressures of a DBA team, and how we can work smarter with automation and AI
Comments posted to this topic are about the item The day-to-day pressures of a...
Using OPENJSON
Comments posted to this topic are about the item Using OPENJSON
Data Modeling with dbt for Visual Code: The Fabric Modern Data Platform
Comments posted to this topic are about the item Data Modeling with dbt for...
Question of the Day
Using OPENJSON
I have some data in a table that looks like this:
BeerID BeerName brewer beerdescription 1 Becks Interbrew Beck's is a German-style pilsner beer 2 Fat Tire New Belgium Toasty malt, gentle sweetness, flash of fresh hop bitterness. 3 Mac n Jacks Mac & Jack's Brewery This beer erupts with a floral, hoppy taste 4 Alaskan Amber Alaskan Brewing Alaskan Brewing Amber Ale is an "alt" style beer 8 Kirin Kirin Brewing Kirin Ichiban is a Lager-type beerIf I run this, what is returned?
select t1.key
from openjson((select t.* FROM Beer AS t for json path)) t1 See possible answers