User-Defined Functions (UDFs) are an essential part of the database developers' armoury. They are extraordinarily versatile, but just because you can even use scalar UDFs in WHERE clauses, computed columns and check constraints doesn't mean that you should. Multi-statement UDFs come at a cost and it is good to understand all the restrictions and potential drawbacks. Phil Factor gives an overview of User-defined functions: their virtues, vices and their syntax.
In this article, I’m going to show a procedure to resolve an issue that I found while running cluster validation report. you may receive below warning message that includes information about the cause of the warning, which can help you to resolve the issue.
Michael Swart shows how to investigate and fix database connection leaks, an application issue that can lead to connection timeouts.
In this tip John Grover will help you make the transition to SQL Server on Linux by explaining the things you need to know.
A short description of our experience with Veritas Netbackup on MS SQL Server AG Groups. This article does not give a full description of the procedure for configuring netbackup but highlights a few pitfalls which we think some people will find very useful.
If the design of a relational database is wrong, no amount of clever DML SQL will make it work well. Dr. Codd’s Information Principle is that you have, inside the entity tables, the columns that model the attributes of that entity. The columns contain scalar values. Tables that model relationships can have attributes, but they must have references to entities in the schema. You split those attributes at your peril. Joe Celko explains the basics.
There is a new utility to import data from SQL Server on premises or Azure SQL to Azure SQL Data Warehouse (ASDW)
Today Steve Jones talks about the short cuts that developers might take, many of which aren't necessarily helpful.
By gbargsley
Recently, I was in a technical interview where the topic of running PowerShell at...
By alevyinroc
I don’t recall where this came up (probably in SQLSlack), but I had a...
By Steve Jones
One of the parts of getting older that really sucks is I seem to...
Hi, we put together an extract that runs every 15 minutes against what i...
Comments posted to this topic are about the item Parameter Sensitive Plan Optimization in...
Comments posted to this topic are about the item Minimum Change Tracking Retention
If I am running this code:
ALTER DATABASE AdventureWorks2017 SET CHANGE_TRACKING = ON (CHANGE_RETENTION=xxx);What is the minimum amount of time I can set? See possible answers