There are a number of real-life reporting tasks in SQL that require a 'gaps and islands' analysis. There are a number of techniques around that work, but finding ones that scale well makes for a tougher, but interesting, challenge.
2014-02-28
3,824 reads
In this tip, Sadequl Hussain will try to list a few areas DBAs need to cover when they are designing new systems or reviewing proposed solutions.
2014-02-27
5,421 reads
Views are a valuable tool for the SQL Server Developer, because they hide complexity and allow for a readable style of SQL expression. They aren't there for reasons of performance, and so indexed views are designed to remedy this shortcoming. They're great in certain circumstances but they represent a trade-off, and they come with considerable 'small print'. Jes Borland explains.
2014-02-26
4,674 reads
A common method to detect if a row has changed is to compare hashes. Integration Services itself doesn’t have a hash implementation, so in this tip I’ll show how you can implement a hash detection mechanism using a script component, as an alternative to the pure T-SQL solution.
2014-02-25
3,416 reads
All DBAs need to engage in a little project management to help make sure everything runs smoothly. In this extract from the book Tribal SQL, David Tate explains his system for managing workload, colleagues, and projects, and how not to be just "the guy who says no".
2014-02-24
3,072 reads
A Hyper-V replica will provide a rapid disaster-recovery by simply replicating to a standby site a VM running at the primary site. Is it, therefore, ideal for running SQL Server in high-availability? Well, it depends on the type of HA you require, and whether you need the features that aren't supported.
2014-02-21
3,378 reads
SQL Server security related tasks can be divided into four main categories: physical security, operating system level security, SQL Server configuration and user management. Here is your SQL Server security checklist.
2014-02-20
4,963 reads
The SEQUENCE statement introduced in SQL Server 2012 brings the ANSI SQL 2003 standard method of generating IDs. This is a great relief to database professionals as it solves some problems what are awkward to solve with the IDENTITY property. Joe Celko explains the basics of using a SEQUENCE.
2014-02-19
5,839 reads
Recently we presented a procedure for uploading data to a Windows Azure SQL Database from an on-premise SQL Server instance. Today we will accomplish the same objective by employing a more traditional approach to data extraction, transformation, and loading (ETL) that relies on SQL Server Integration Services (SSIS).
2014-02-18
3,765 reads
If you have a number of SQL Server instances with versions ranging from 2005 upwards, with a whole host of databases, and you want to be alerted about a number of diverse events that are useful for first-line problem-diagnosis and auditing, then Feodor's homebrew solution, using SSIS and Robocopy is likely to be what you're looking for.
2014-02-17
5,089 reads
By Steve Jones
Software is hard. While I love our Lucid Gravity, I realize that they are...
By James Serra
Making Data AI-Ready, Part 2 (This is the second article in a three-part series...
By Steve Jones
Can you use your GPUs when running a local model under Ollama? You can,...
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