I’ve read a lot of things lately pointing to scalar functions as if they were the devil. In this blog I’m going to explore if that’s the case. Let’s have a look.
Tag: Performance
Back to basics: What is a HEAP table?
Understanding the fundamentals is key for success, with everything you do. These days SQL Server has expanded into much more than just a database; but, products that ingest data for analysis still need to get the data from a source, such as an OLTP SQL database.Read More »
SQL Tuning: Finding statements for missing indexes
Missing indexes are an important part of the indexing strategy. I usually start with sys.dm_db_index_usage_stats to find both inefficient and unused indexes and then supplement with missing indexes.
The missing index DMVs are great but they’ve always been missing something.
Query tuning: Apply yourself
It’s Friday and I’m ready for the weekend as I’m sure everyone else is. This weekend I’m looking forward to getting yard work done and browsing through the whoisactive SQL Ops Studio extension code.
SQL Server: The danger of large data types
Databases are platforms that are designed to securely store and retrieve your data. Perhaps that’s why they’re called a data “base”? So if your data is in a base, you’d want to lay it out in some logic way.
SQL Server: SARGability part 2
In case you missed the first post on this topic, you can read it here: SQL Server: SARGability. This post continues the series and today we’re going to discuss the dangers of functions.
DBA 101: Tuning lookups
Sometimes it helps to go back to the basics and indexing is always a great topic. SQL Server has a wide variety of indexes; but, today we’re going classic and talking about Non-clustered indexes.
Query tuning 101: What’s a probe residual?
Query tuning is an important process that will probably never go away and sharpening your tuning skills is always a good idea.
I’ve spoken on this topic many times and talked about probe residuals before. Mostly at SQL Saturday events and for some online webinars.
DBA 101: Comparing two SQL plans
Simple post today: How to compare two plans in SSMS.
This task is a task that is often done by a DBA or developer who is wanting to compare changes of an index or perhaps even comparing queries between DEV and PROD.
DBA 101: File growth
Maintaining a database is an important job of the DBA role. One of the many maintenance tasks is ensuring that the disk does not fill up and your files are able to grow over time.
