All Articles - SQL Authority with Pinal Dave

SQL SERVER – Statistical Analysis in SQL Server – A Quick Introduction

February 21, 2014

SQL Server has very few statistical functions. Oracle has lots of them. XLeratorDB closes the gap. If you want to try out the example of this blog post, I suggest you download the 15-day free trial of XLeratorDB NOW. Most SQL Server users would never think of T-SQL as a…

SQL SERVER – Finding the Last Backup for All Databases – Notes from the Field #016

February 20, 2014

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

Notes from the Field, SQL Backup and Restore

[Notes from Pinal]: During my presentation, I always ask developer a simple question – When did you take your last database backup? I get two different kinds of answers – 1) few replies with No Idea and 2) few replies with some date time. When I further ask if they…

MongoDB and MySQL – Comparing Scalability, Data Distribution & Query Model – Part 3

February 19, 2014

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

MongoDB, MySQL, ScaleBase

Note: This blog post part 3 of the series and you can download 30-day trial of ScaleBase to practice the concepts. In this article comparing MongoDB and MySQL scalability, I want to focus on query models. We’ve previously discussed how MongoDB and ScaleBase are both highly scalable distributed databases, where…

MongoDB and MySQL – Comparing Scalability, Data Distribution & Query Model – Part 2

February 18, 2014

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

MongoDB, MySQL, ScaleBase

Note: This blog post part 2 of the series and you can download 30-day trial of ScaleBase to practice the concepts. In a previous article comparing MongoDB and MySQL, we saw how MongoDB and MySQL with ScaleBase execute auto-sharding, a key technique to deliver database scalability. In MongoDB, any joins…

MongoDB and MySQL – Comparing Scalability, Data Distribution & Query Model – Part 1

February 17, 2014

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

MongoDB, MySQL, ScaleBase

Note: This blog post part 1 of the series and you can download 30-day trial of ScaleBase to practice the concepts. Introduction Whether it is for extremely large data volumes, high transaction throughput or a massive number of concurrent users, today’s internet and mobile applications require the ability to respond…

MySQL – How to Detect Current Time Zone Name in MySQL

February 16, 2014

Pinal Dave

SQL, SQL Tips and Tricks

MySQL, SQL DateTime

MySQL developers and DBA often face a very simple challenge when they have to retrieve the time zone of the session which they are connected to. If you look at MySQL documentation and search engine there are many different ways to do the same. In this blog post, I will…

SQL SERVER – Get Current TimeZone Name in SQL Server

February 15, 2014

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

SQL DateTime

A very common question we developer often encounters is what is the current Timezone of the server where SQL Server is installed. It is very easy to get current Timezone of the server where SQL Server is installed. Here is the simple script for the same. DECLARE @TimeZone VARCHAR(50) EXEC…

MySQL – When to Use TIMESTAMP or DATETIME – Difference Between TIMESTAMP or DATETIME

February 14, 2014

Pinal Dave

SQL, SQL Tips and Tricks

MySQL, SQL DateTime

This is a one of the most popular question, I often receive when MySQL Developers are creating a database. There are multiple datatypes which can store DateTime datatype in MySQL. The usual confusion comes up between DATETIME and TIMESTAMP. DATETIME and TIMESTAMP – both of them can store datetime data…

SQL SERVER – Expanding Your Skills – Notes from the Field #015

February 13, 2014

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

Notes from the Field, SQL Backup and Restore

[Note from Pinal]: This is a fifteenth episode of Notes from the Field series. We all want to learn more and progress in our career. It is human nature to look for change and variety after a while. In most of the cases, it is quite easy to move inside…

SQL SERVER – SafePeak SQL Server Acceleration Software Gets an Upgrade

February 12, 2014

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SafePeak, the SQL Server application acceleration software, gets a new version upgrade and launches on Amazon Cloud Marketplace. SafePeak’s idea in a nutshell is simple. SafePeak is a query-level automated caching middleware for SQL Server-based operational applications. SafePeak accelerates apps by caching SQL queries while keeping a 100% ACID compliance…