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SQL Window Functions Series: NTILE()

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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.

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2024-02-03 (first published: )

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SQLServerCentral Article

SQL Window Functions Series: LAG() and LEAD()

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Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.

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2023-12-11

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External Article

The difference between libraries and frameworks

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The concept behind frameworks and libraries is to provide reusable code that you can use to perform everyday tasks so that developers don’t have to write all of the code from scratch for every project. However, there are some differences that you need to understand as you start writing code, which I will cover in this article.

2023-07-05

SQLServerCentral Article

A Comparison of Database Drivers for MySQL

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MySQL is "The world's most popular open source database" and it is widely-used to store and access your data. In fact, there are many cloud and on-premise databases (like MemSQL and Google Cloud SQL) that use the MySQL interface. Several native, open-source drivers are available for connecting to your MySQL data from other applications. In […]

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2021-11-22

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The "ORDER BY" clause behavior

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Question of the Day

The "ORDER BY" clause behavior

Let’s consider the following script that can be executed without any error on both SQL Sever and PostgreSQL. We define the table t1 in which we insert three records:

create table t1 (id int primary key, city varchar(50));

insert into t1 values (1, 'Rome'), (2, 'New York'), (3, NULL);
If we execute the following query, how will the records be sorted in both environments?
select city

from t1

order by city;

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