Finding Correlated Rows Using EXISTS or COUNT

Should you always use EXISTS rather than COUNT when checking for the existence of any correlating rows that match your criteria? Does the former really offer "superior performance and readability". Louis Davidson investigates. Read more

SQL Prompt 10: What’s New?

Tony Davis reviews the major new features of SQL Prompt 10, included improved 'ranking' of its code auto-completion suggestions, tab history improvements to make it easier to find 'lost' code, and auto-fixing of code that breaks code analysis rules. Read more

Using Custom Deployment Scripts with SQL Compare or SQL Change Automation

Phil Factor describes how custom pre- and post-deployment scripts work, when doing state-based database deployments with SQL Compare or SQL Change Automation, and how you might use them to, for example, add a version number to the target database, specify its database settings, or stuff data into some tables. Read more

SQL Clone PowerShell Scripting: The Basics

Phil Factor demonstrates some simple examples of how to use SQL Clone's PowerShell library to pass objects between cmdlets, and simplify common tasks, such as creating and deploying clones from various images. He then documents the objects and cmdlets, and illustrates their inputs and outputs. Read more

Unwrapping, Unboxing and Installing SQL Clone

If you are evaluating a tool such as a text editor or spreadsheet, it is easy: you just install it, you run it, you decide whether you need it. Job done. However, a similar 'unboxing' or 'unwrapping' of SQL Clone, and installing across a network, is not so quick and easy. Phil Factor's solution is to install and run a complete installation of SQL Clone on a single box. This allows you to try everything out, creating images and deploying clones, while isolated from the network. It can then be extended across a network, subsequently, when it's been fully tested. Read more

SQL Productivity with SQL Prompt

There is an old joke that upgrading to the latest SQL Server is wasted on some DBAs, because they will still stick mainly to what worked in SQL Server 2005. This type of DBA is becoming rare, in my experience, but there is still some truth in the idea that many of us don’t get Read more

Recreating Databases from Scratch with SQL Change Automation

Phil Factor starts with the basics how to rebuild a set of development database from scratch, using SQL Change Automation, and then demonstrates how to check for any active sessions before rebuilding, import test data using BCP, and secure passwords if connecting to the target with SQL Server credentials. Read more

Using the SQL Compare command line with Argfiles

Phil Factor demonstrates how using XML argfiles to pass parameters to SQL Compare cuts out a lot of the tedious scripting involved in modifying a database schema comparison and deployment process, as required for each target database. Read more

SQL Compare 14.0: A Command Line Interface on Linux and support for SQL Server 2019

SQL Compare is the industry standard tool for comparing and deploying database schema changes, and version 14.0 now provides a Command Line Interface (CLI) on Linux (available as a beta, at time of writing). Teams working with SQL Server on Linux, or across multiple platforms, benefit from seamless development processes, driven by SQL Compare, without Read more

Automating Schema Comparisons with SQL Compare Projects and PowerShell

A simple way of automating SQL Server database schema comparison and deployment tasks for multiple databases, by saving the options and configuration settings for each deployment in a project file and executing them from a PowerShell script. Read more

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