Checking SQL Server with Policy-Based Management

Policy-Based Management, a feature of SQL Server, is a flexible tool that can help DBAs manage one or more SQL Server instances. It's used for monitoring and enforcing a standard set of policies for SQL Server throughout an organization. While there are many built-in conditions from which to choose, Dennes demonstrates how to set up a custom policy as well as a standard one. Viewing the policy status over many servers can be tedious, so he also explains how DBAs can evaluate the states of multiple servers with just one glance.… Read more

Questions About Amazon Data Migration Service (AWS DMS) That You Were Too Shy to Ask

Can you imagine it? You are in a group of smart database people, and they are debating the finer points about AWS DMS, and you don't even know what the letters stand for. You just feel too shy to ask those basic questions that seem ridiculous once you're up to speed. Laerte Junior answers all the questions you need answers for when facing the prospect of getting familiar with Amazon's useful Database Migration Servic… Read more

Questions About RDS SQL Server That You Were Too Shy to Ask

There are a number of different ways that you can host SQL Server. RDS SQL Server, for example, uses SQL Server within AWS as a simple database service, much like a more versatile alternative to MySQL. Obviously, it is a compromise, in that you lose many of the extras beyond the database. Laerte Junior answers those questions about RDS that people seem to assume you know the answers to, but which you may be too shy to ask.… Read more

Six Scary SQL Surprises

The working life of the DBA can be punctuated by surprises, but they aren't generally nice surprises. This is especially true if the DBA is not checking and monitoring the databases for obvious things such as database corruption, and disk space. However, the really scary surprises are less obvious and provide fewer warning signs. Brent Ozar gives six scary surprises that can be avoided by the shrewd DBA.… Read more

Investigating the Cause of SQL Server High CPU Load Conditions When They Happen

Any DBA who is trying to find the cause of an intermittent problem with a server or database dreams of being able to use a query or procedure take a snap of the relevant variables at the point when the problem occurred. Laerte takes an example of a slow-running query hogging resources to show that you can run queries when a WMI alert is fired, and save the results for later inspection, whenever it happens.… Read more

Automating the Synchronization of RDS SQL Server Agent Jobs in a Multi-AZ Environment

Although Azure is the obvious Cloud service to host SQL Server, Amazon Relational Database Service (RDS) for SQL Server is a good choice when your organisation uses AWS. RDS deals with maintenance and monitoring, and supports the use of PowerShell to automate routine tasks. What if a script needs to be triggered by an unscheduled event? Even in this case, RDS can be configured to run scripts to react when something like a failover happens. Laerte Junior shows how easy it is to set up Lambda functions and some PowerShell scripts to automatically synchronise agent jobs after a failover.… Read more

Query Store and Parameterization Problems

The query store gives us a novel way of identifying those queries that are causing performance problems when they are parameterized by SQL Server for reuse. Although it is relatively simple to ensure that certain troublesome queries avoid the problem, it is laborious to identify these queries. Additionally, Query Store gives us the means to fix the problem for groups of queries by means of plan guides without changing the DDL at all. Dennes Torres explains the details… Read more

News for Differential Backup

SQL Server 2017 brings several improvements to us. Sometimes a simple new field in a DMV can turn possible interesting new functionalities. That’s what happens with differential backup in SQL Server 2017. The DMV sys.dm_db_file_space_usage has a new field: modified_extent_page_count . This new field tell us how many pages were changed since the last full backup. … Read more

Azure Load Balancers and SQL Server

Load balancing in Azure has more importance for the DBA, because it is essential for Windows Server Failover Clustering in Azure, whether it is for AlwaysOn Availaiblity Groups, Failover Clustered Instances, or any other highly-available solution. Azure load balancing works out the location of the availability group, and routes traffic there. The load balancer detects a failure, and routes traffic to the new primary replica. Joshua Feierman gives an overview of what is required.… Read more

Questions About SQL Server Collations You Were Too Shy to Ask

Of course we all like our colleagues to think that we know everything there is to know about SQL Server Collations. However, the truth is that it is a rather complicated topic to fully understand and the cost of getting collation wrong can be great. If only one could ask certain questions on forums or at conferences without blushing. Help is at hand, because Robert Sheldon once again makes the complicated seem simple by answering those questions that you were too shy to ask… Read more