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In This Issue |
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From the SQLServerCentral Blogs -
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Editorial - Savvy Managers |
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My guess is that most of you out there wouldn't necessarily classify your managers as "savvy", especially as it relates to data. I know that when I hear managers talking about "data quality", "data integrity", "ETL", or any other acronyms, I tend to cringe, expecting more work, with poor requirements, and likely unreasonable estimates. But not all managers are that bad and when I attended the Micosoft BI Conference earlier this year, I was surprised to see so many business people, especially managers, there and talking about how much value they got from BI because it gave then more insights into their data. And they almost universally talked about how important a strong data warehouse with high data quality is to the success of a project. Data quality is important, but it takes an effort to ensure that you can achieve a high level of quality in your data, meaning that the data is accurate and represents what you think it represents. I caught this interesting article about 10 data quality habits for successful managers. It probably should be for successful organizations and not just managers, but it's a good guide for managers to be aware of. Without reading the article, I'd bet you could guess at what some of the items should be. They're mainly common sense, but they bear repeating and it's good to see them listed in together in a short article. Data quality takes effort and just like programming, the earlier you can introduce checks and catch errors, the less expensive it is to maintain. However that doesn't necessarily mean that you should go all the way to the source. Putting in a huge amount of checks and filters in the input client might not be in your best interest. Consider a salesman, trying to make a sale, entering data and constantly getting pop-ups and errors that force data entry to be exact. Can you imagine how frustrating this would be? And possibly how this might impact data quality? Can you guess at what percentage of people might get names entered as initials instead of misspelled names? Does someone need to be slowed down because they typed "Bbo?" Enforcing data quality at the source might be better served with suggestions or filters that try to fix common mistakes or even batch up confirmations of suspected errors for someone to examine later. There are any number of ways to make this an easier process and still ensure data quality. My advice is that you should tackle data quality as an ongoing part of your job. Make constant, continuous, and small improvements, build in checks and balances, and be sure you work with other groups and users to ensure the load is shared, and more importantly, easily integrated into the way they already do business. And maybe I'll see you featured at one of the next BI events as a SQL Server success! Steve Jones The Voice of the DBA Podcasts
The podcast feeds are now available at sqlservercentral.podshow.com to get better bandwidth and maybe a little more exposure :). Comments are definitely appreciated and wanted, and you can get feeds from there.
The RSS Feed:
Today's podcast features music by Everyday Jones. No relation, but I stumbled on to them and really like the music. Support this great duo at www.everydayjones.com. I really appreciate and value feedback on the podcasts. Let us know what you like, don't like, or even send in ideas for the show. If you'd like to comment, post something here. The boss will be sure to read it. » Join the debate, and respond to today's editorial on the forums » To submit an article, rant or editorial, log in to the Contribution Center |
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Question of the Day |
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Today's Question: What stored procedure is used to enable Database Mail in SQL Server 2012?
Think you know the answer? Click here, and find out if you are right. This question is worth 1 point in this category: Database Mail. We keep track of your score to give you bragging rights against your peers. We'd love to give you credit for your own question and answer. To submit a QOD, simply log in to Contribution Center. |
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SQL Backup and RestoreA DBA's tasks, from day-to-day, are rarely constant; with one exception: the need to ensure each and every day that any database in their charge can be restored and recovered, in the event of error of disaster. In this book, you'll discover how to perform each of these backup and restore operations using SQL Server Management Studio (SSMS), basic T-SQL scripts and Red Gate's SQL Backup tool. Get it from Amazon in print or download the ebook for free from Red Gate. |
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Yesterday's Question of the Day |
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In SQL Server 2008 R2 and earlier versions, the auto updating of statistics rules are:
In SQL Server 2008 R2 SP1, which one of these is true:
Answer: Micrisoft released a trace flag which will change the fixed rate of the 20% threshold for update statistics into a dynamic percentage rate Explanation: In order to activate this new logic, you need to enable traceflag 2371. As a result the threshold to trigger update statistics will be calculated based on the number of rows in the table. However, the table still needs to have a minimum of 500 rows as the minimum row threshold did not change. As before the update of the statistics will apply the default sample rate which is dynamic and based on the # of rows.
Ref: http://www.microsoft.com/casestudies/Microsoft-SQL-Server-2012-Enterprise/Microsoft-IT/Microsoft-Ensures-Smooth-Operation-of-ERP-System-and-Cuts-Disaster-Recovery-Time/710000000493 |
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Optimize your queries—and obtain simple and elegant solutions to a variety of problems—using window functions in Transact-SQL. Led by T-SQL expert Itzik Ben-Gan, you’ll learn how to apply calculations against sets of rows in a flexible, clear, and efficient manner. Ideal whether you’re a database administrator or developer, this practical guide demonstrates ways to use more than a dozen T-SQL querying solutions to address common business tasks. Get your copy from Amazon today. |
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Featured Script |
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Search for String in all columnsFind all columns containing a string value across all tables and schemas. More » |
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Database Pros Who Need Your Help! |
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Error When converting Nvarchar to XML - Hi all, I'm trying to convert a string to XML, I'm not sure why I'm getting the error:XML parsing: line... building the query for the below output - Hi, CREATE TABLE [T_Master_lookup]( [F_lookup_id] [int] NOT NULL, [F_data_id] [int] NOT NULL, [F_looup_desc] [nchar](10) NOT NULL ) ON [PRIMARY] GO INSERT INTO [T_Master_lookup] ([F_lookup_id],[F_data_id],[F_looup_desc]) VALUES (1001,1,'A'); INSERT INTO... Near Friday Date - Our Acounts Payable changed the way they pay vendors, from now on they will cut checks only on fridays, I... Finding min and max date within a sub-group - My task is to find the minimum and maximum date for the Code contained in the latest row. A picture... How to correlate data between two tables - Hey guys! Need your valuable help again, please! :-D I have various objects within one Salseforce system, which were migrated into another... 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Stairway to Transaction Log Management in SQL Server, Level 6: Managing the Log in BULK_LOGGED Recovery Model
SQL Server 2012: Installing Data Quality Services
The OLAP Sprint
Solid State Storage: Enterprise State Of Affairs
Today's editorial was originally released on Nov 27, 2007. It is being re-run as Steve is at the PASS Summit.
Microsoft SQL Server 2012 High-Performance T-SQL Using Window Functions