Actual “Number of Rows Read” in SQL Server Execution Plans
Kendra Little takes a look at the upcoming SQL Server 2016 'Number of Rows Read' feature in action.
Best Practices For Deleting SQL Server Data
Inevitably there comes a time where some backend data cleanup needs to be done. Ben Snaidero shares some best practices to follow when deleting data.
Sharing Code
Most people blog to share something they've done, and hopefully with the idea that someone else will learn and benefit from it. Steve Jones is happy to share code, but not everyone seems to be in agreement. In any case, you ought to respect the author's wishes.
Declarative SQL: Using UNIQUE Constraints
In SQL, you can express the logic of what you want to accomplish without spelling out the details of how the database should do it. Nowhere is this more powerful than in constraints. SQL is declarative, and Joe Celko demonstrates, in his introduction to Declarative SQL, how you can write portable code that performs well and executes some complex logic, merely by creating unique constraints.
Is Change Coming?
In the final Database Weekly of 2015, Steve Jones looks at a CIO's column on workplace change.
Read-Only Routing for Non-Microsoft Clients
An alternative read-only routing technique for non-Microsoft clients.
Why Use the Principle of Least Privilege?
SQL Injection isn't special code. It consists of regular, valid T-SQL that is unexpected by the application. Steve Jones notes that using the principle of least privilege can help to limit the damage from SQL Injection if the application fails to properly check input.
Azure SQL Database Resiliency - Point-in-Time Restore
Azure SQL Database provides a number of benefits that leverage resiliency and redundancy built into the underlying cloud infrastructure. You can take advantage of these features in order to perform backup, restore, and failover tasks, which help you recover from human errors, service outages, or even regional disasters. In this article, Marcin Policht provides an overview of the primary capabilities incorporated into Azure SQL Database, in particular focusing on point-in-time restore
An Impressive SQL Server
This Friday Steve Jones has a poll about which SQL Servers might impress you. Is there a company or installation that you think would really showcase the power and scalability of SQL Server?
Blogs
Optimising Costs: Strategies for Efficient Cloud Resource Management
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Over time, I’ve realised that one of the hardest parts of cloud management isn’t...
Cost Visibility: Tracking and Analysing Your Cloud Spend
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One of the biggest challenges I’ve faced in cloud operations is maintaining clear visibility...
Whiling away an afternoon, thinking
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I come to Heathrow often. Today is likely somewhere close to 60 trips to...
Forums
Fun with JSON II
Comments posted to this topic are about the item Fun with JSON II
Changing Data Types
Comments posted to this topic are about the item Changing Data Types
Answering Questions On Dropped Columns
Comments posted to this topic are about the item Answering Questions On Dropped Columns
Question of the Day
Fun with JSON II
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT t1.[key] AS row,
t2.*
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t1
CROSS APPLY OPENJSON(t1.value) t2; See possible answers