QRCoder is an open source implementation of standards specification ISO/IEC 18004, which defines the requirements for two-dimensional QR Code symbols. It is a more complete implementation of the standard than the open source QRCode4CS library that was used in a previous article.
Phil Factor explains cross database and cross-server references, how to find them in your code, and when it's better to avoid hard-coding these references and use synonyms instead.
I am new to SQL Server and I have heard the term used in a number of different capacities and in different contexts. So what exactly is it? What are the common components? How does it work? How do people use it? I am brand new to the technology, where do I get started?
This article covers how to install PostgreSQL on the macOS.
Securing data is not always easy to do, but it should be the top responsibility for database administrators. From protecting the physical servers to preventing copies of backups files from getting into the wrong hands, there is a lot to consider. In this article, Pamela Mooney covers what DBAs need to think about when securing their organisation’s data.
This final level to the first landing completes the basics of a SQL database, by explaining what cursors are and why you should never use them.
Dynamic Management Views (DMVs) are a significant and valuable addition to the DBA's troubleshooting armory, laying bare previously unavailable information regarding the under-the-covers activity of your database sessions and transactions.
By Steve Jones
This month we have a new host, Meagan Longoria, who graciously agreed to help...
By Steve Jones
I’m at the UK Redgate office today, meeting with senior leaders in all areas...
Optimizing Azure SQL Database performance often begins with identifying the most resource-intensive queries. Understanding...
Comments posted to this topic are about the item Creating a JSON Document IV
By VishnuGupthanSQLPowershellDBA
Comments posted to this topic are about the item Restoring Azure Key Vault Keys...
When the schema of an object is changed, SQL Server wipes out the previous...
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