SQL Server 2014 introduces enhancements to two common database maintenance operations namely Partition Switching and Online Index Rebuild which greatly increases enterprise application availability by reducing maintenance downtime impact.
2013-09-13
3,371 reads
In real-world applications, it often makes sense to show denormalized data, such as delimited lists, within the application's user interface. Dwain Camps shows why, and how, the distribution business stores information about 'islands' in sequences in order to track the status of the shipping of a consignment. It makes a great SQL puzzle.
2013-09-12
3,371 reads
Kun Lee had a database where the log file kept growing and used 99.99% of the available space. He noticed miscellaneous change data capture objects still in the database as well as open transactions. This was causing his transaction log to continue to grow, but he couldn't disable CDC, because SQL Server thought it was not enabled. Read the full article to see his solution.
2013-09-11
3,682 reads
SQL is derided by modern developers as 'Scarcely Qualifies as a Language'. But just how efficient are the new wave of NoSQL languages touted by bleeding-edge skunk works? This tip is a defense of SQL and of the relational model, and argues for the efficiency and suitability of relational technology. Check out this tip to learn more.
2013-09-10
4,656 reads
You can use DAX to create reports from a tabular database in SQL Server Reporting Services. To do so requires a few workarounds. Rob Sheldon describes a poorly-documented but important technique for Business Intelligence.
2013-09-09
4,222 reads
You are tasked with examining poor performance for queries on a certain table, or range of tables. Perhaps a sales report is timing out or running unacceptably slow; perhaps your web application is failing to return the result set before the application timeout is reached. You need to find out what's causing the bottleneck, and optimize either the queries used, the table schemata, or both.
2013-09-06
6,400 reads
With ODBC, you can summarise, and select just the data you need, in an Excel workbook before importing it into SQL Server. You can join data from different areas or worksheets. You can even get data from the result of a SQL Server SELECT statement into an Excel spreadsheet. Phil Factor shows how, and warns of some of the pitfalls.
2013-09-05
4,816 reads
Column Store Index, which improves performance of data warehouse queries several folds, was first introduced in SQL Server 2012. Unlike regular indexes or heaps, which store data in B-Tree structure (in row-wise fashion), the column store index stores data in columnar fashion and uses compression aggressively to reduce the disk I/O needed to serve the query request. In this article, Arshad Ali talks about the new enhanced columnstore index feature in SQL Server 2014.
2013-09-04
2,487 reads
If the transaction log autogrows rapidly, it can suggest that log backups are not being carried out frequently enough, or another resource may be preventing the log from truncating. This metric measures the number of transaction log files that are greater than 10 GB. The associated alert is raised when the number of files exceeds a specified threshold.
2013-09-03
2,422 reads
In this article we'll take a look at the following Tips and Tricks for SSRS: Display Total Number of Pages while Navigating, Display Everything in a Single Page, Display Report Parameter Selection, Display No Rows Error Message, Page Settings for Optimal Printing.
2013-09-03
5,988 reads
I built a free library of runnable SQL Server demos. Each reproduces a real...
By Steve Jones
I was looking over the CHOOSE() function while editing an article at SQL Server...
By Brian Kelley
Here is another short video (~ 15 minutes). This is by the author of...
I have a section of code similar to the following abstract: DECLARE @loop [int]...
Hello everyone, I am planning to implement a data purging solution that is expected...
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In SQL Server 2022+, what does the ##MS_DatabaseConnector## role allow?
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