Unlock the power of SQL's NTILE function with our latest deep-dive article. Learn to segment your data effectively into quantiles for more nuanced analysis, discover common pitfalls and their solutions, and optimize your queries for peak performance.
2024-02-03 (first published: 2024-01-03)
5,050 reads
One of the most effective ways to fully utilize your data is to create an Azure Hyperscale database. The principles of Azure Hyperscale databases have been discussed in this article, including their cost-effectiveness, worldwide accessibility, automatic scaling, and reliable performance.
2023-12-22
2,171 reads
Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.
2023-12-11
9,582 reads
2023-11-27
6,085 reads
Profiler is a GUI based tool that runs a SQL Server trace to capture the metrics listed above as well additional data. This data can then be used to determine where your SQL Server performance issues are related to your TSQL code. Running a trace without using Profiler is known as a Server Side Trace. You can create and start the trace using TSQL commands instead of having to use the GUI.
2023-09-29
A query is sometimes super fast and sometimes very slow. One of the main reasons for this problem is Parameter Sniffing. There are several approaches to addressing the Parameter Sniffing issue and this article discusses effective methods for handling Parameter Sniffing in SELECT statements containing a TOP clause.
2023-09-18
In this tip, we will discuss the process of generating test data to verify query logic without relying on real-life data, along with some helpful guidelines. We will also cover various scenarios and their corresponding solutions.
2023-09-15
There is more than one way to work with SQL Server stored procedures from within a .NET Application. However, when using parameters, in order to avoid exposing your code to "SQL Injection" vulnerabilities, there is a certain way based on which you should write your code.
2023-08-21
RDS Custom for SQL Server recently released exciting new features related to Bring Your Own Media (BYOM) and High Availability. By using BYOM, customers may leverage their existing SQL Server licenses with Amazon RDS Custom for SQL Server, when used in accordance to Microsoft terms. This allows customers who have already purchased SQL Server licenses to save on TCO/license costs, while offloading the undifferentiated heavy lifting of database management to Amazon RDS Custom. By using Multi-AZ deployment, customers can now set up high availability for their databases.
2023-08-14
Sometimes, we need to find the first or last n% records from a dataset based on a particular column. For instance, a teacher wants to know which students are in the bottom 25% based on marks. Hence, in such situations, the SQL NTILE() function helps. We will leverage this tip to get first or last n% records using NTILE() in SQL Server.
2023-08-04
By Vinay Thakur
Continuing from Day 4 where we learned Encoder, Decoder, and Attention Mechanism, today we...
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
I'm fairly certain I know the answer to this from digging into it yesterday,...
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
hi everyone I am not sure how to write the query that will produce...
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 *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers