Bloor 2019 Market Update on Test Data Management
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Glenn’s Tech Insights For May 15, 2019
(Glenn’s Tech Insights… used to be part of our bi-weekly newsletter but we decided to make it a regular blog post instead so it can get more visibility. It covers interesting new hardware and software developments that are generally releva …
Why Order Isn’t Guaranteed Without an ORDER BY
Start with the Stack Overflow database, with no nonclustered indexes. If you’ve been playing around with demos, run my DropIndexes proc just to clear things out, which leaves the clustered indexes in place. Say you run this query:SELECT TOP 100 I …
SQL SERVER – Automatic Seeding of Availability Database ‘DB’ in Availability Group ‘AG’ Failed With an Unrecoverable Error
While deploying Always On Availability Group with a client, they found that when they use automatic seeding, the database was not shown on secondary. After digging more, we found that it was there earlier in “Restoring” state when seeding w …
Types of SQL Server Temporary Tables
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Queries with OPTION (RECOMPILE) and Query Store
Last week in our IEPTO2 class I was asked about queries with OPTION (RECOMPILE) and Query Store. Specifically: Do queries that have the OPTION (RECOMPILE) hint go into Query Store, AND do queries in a stored procedure created with the RECOMPILE o …
Which Queries Should You Cache in the Application?
I’ve talked about how the fastest query is the one you never make, and why when you’re scaling up a database application, you probably want to start caching query results in the app tier. Caching means: Less licensing costs for SQL Server L …
SQL SERVER – T-SQL Script to List Automatic Seeding of Always On Availability Group
I love blog post which just solves a simple point and immediately gets us the necessary answer. Recently during one of the consulting engagement Comprehensive Database Performance Health Check at one of my customer place we identified a wait statistics …
Importing Data into Azure SQL Database
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Using Azure Data Studio with Git
Azure Data Studio (ADS) is a lightweight IDE built on Visual Studio Code. I’ve written a few articles on how the tool works, shown here: Getting Started with Azure Data Studio Getting Comfortable Writing Code in Azure Data Studio Using Notebooks in Azu …
Setup SSIS Catalog Retention Policy and Partial Cleanup Strategy
SQL Server Integration Services (SSIS) is a great tool for building ETL processes. On SQL Server, we can configure an Integration Services Catalog to deploy and configure all the SSIS packages. When using this service, there is also a catalog dat …
SQL For Cosmos DB – Handling Complex JSON Structures
The series so far: Introduction to SQL for Cosmos DB SQL For Cosmos DB – Tips and Tricks SQL For Cosmos DB – Handling Complex JSON Structures JSON allows for nested nodes, arrays and arrays of objects, and Cosmos DB SQL can handle all of th …
Samsung Portable SSD X5 Review
If you have a fairly recent PC or Mac with a Thunderbolt 3 port, and you want/need some very high performance external storage, one of your best choices will be an external Thunderbolt 3 drive, especially one that uses an M.2 NVMe NAND flash drive with …
Creating Your First SQL Server Docker Container in macOS
It is not surprising that macOS has become the platform of choice when designing, creating or developing new SQL Server solutions. Microsoft has invested important time and resources to create a set of very powerful cross platform (Windows, Linux, macO …
SQL SERVER – Getting Started with Accelerated Database Recovery – Instant Rollback
There are many reasons to envy my job as SQL Server Performance Tuning Expert Consultant but the most important reason is that I get to work on quite often the latest version of SQL Server. Just the other day I had an early adopter customer who was usi …