Home > Articles > Data > SQL Server

  • Print
  • + Share This
Like this article? We recommend

Tips 11-20

Choose the Correct Outlook 2000 Configuration

If you use Outlook 2000, when you set up your initial mail profile you have the option to set it up for Internet Only or for Corporate or Workgroup. Even though you might be setting up Outlook to connect only to an Internet Mail server, choose the Corporate or Workgroup mode. You don't have to add an Exchange Server mail account. However, your mail profile will behave differently.

In Corporate or Workgroup mode, SQL Mail will send e-mail messages immediately when they are generated, whether or not the Outlook client is running. For some reason, when configured for Internet Only mode, the mail messages go into limbo and are not sent unless the Outlook 2000 client is running, is online to the mail server, and is configured to automatically send and receive mail on a schedule (for example, every 2 minutes). You may find similar behavior using the Outlook XP mail client when it is configured with only Internet mail accounts.

Back Up Your Transaction Log Before You Do a Recovery

Any time you think you might have to do a recovery, the first thing you should do is back up the transaction log. If you skip this step and restore the database, you will have unnecessarily lost all the transactions since the last log backup.

There was a bug in SQL 7.0 that prevented the NO_TRUNCATE option from working if the primary data file for the database was damaged. Those of you who found this out the hard way will be happy to know it is fixed in SQL Server 2000.

Good Things Come to Those that Wait

After you run the sp_addumpdevice stored procedure, don't panic when you go looking for the physical files on disk and can't find them. The files aren't created until the first time you actually use the backup device.

Also, the physical pathname to the dump file is not validated until the first time you use the backup device. If a bad pathname is entered when creating the dump device, you receive an error message similar to the following when attempting to back up to it:

Server: Msg 3201, Level 16, State 1, Line 1
Cannot open backup device 'mydump'. Device error or device off-line.
 See the SQL Server error log for more details.

Constraints Are The Key to Integrity

Constraints are the primary method used to enforce integrity. Constraints can be created in the CREATE TABLE statement or after the table has been created using ALTER TABLE.

Create your tables first, and then use ALTER TABLE to create the constraints. This has the twofold effect of keeping your CREATE TABLE syntax simpler and providing ALTER TABLE scripts that can be rerun or modified as the need arises.

Changing Datatypes Can Affect Your Data

Changing some datatypes can result in changing the data. For example, changing from nchar to char could result in any extended characters being converted.

Similarly, changing precision and scale could result in data truncation. Other modifications (such as changing from char to int) might fail if the data doesn't match the restrictions of the new datatype. When changing datatypes, always validate that the data conforms to the new datatype.

Don't Shrink If You Don't Have To

Unless there is a definite need for the space that would be made available by shrinking a database, you shouldn't shrink the database files if the space will be used again in the future.

For one thing, having free space available in the database files avoids the overhead of having to autogrow the database files when they become full. Also, if a database file is repeatedly shrunk and expanded, the database file itself can become fragmented within the file system, which can degrade IO performance for the file.

Spread It Around

If too many outstanding I/Os are causing bottlenecks in the disk I/O subsystem, you might want to consider spreading the files across more disk drives. Performance Monitor can identify these by monitoring the PhysicalDisk object and Disk Queue Length counter. Consider spreading the files across multiple disk drives if the Disk Queue Length counter is greater than three.

Avoid Direct System Table References

Avoid writing queries that reference the system tables directly. Microsoft tries to provide backward compatibility whenever possible, but it is not guaranteed. What this means is that Microsoft reserves the right to change the names of the system tables at any time.

If you have applications that call these tables, they might not migrate to the next release. The information schema views, on the other hand, will remain consistent.

There's Good Info in the Error Logs

The SQL Server error log is a good place to look to determine the protocols that SQL Server on which listening. You can view the error logs via the Management node in Enterprise Manager, or you can open the error log file using any text editor. The latest error log file is found by default in Program Files\Microsoft SQL Server\Mssql\Log\Errorlog.

Open the error log file with a text editor and search for the word Listening in the error log text to find the relevant messages. The Server Network utility shows you what has been enabled, but there are instances when the server is unable to listen on the enabled protocol at startup.

Choosing the Best Trace Save Operation in SQL Profiler

Two distinct Save operations are available in the SQL Profiler. You can save trace events to a file or table, or you can save a trace definition in a template file. The Save As Trace Table and Save As Trace File options are for saving trace events to a file. The Save As Trace Template option saves the trace definition. Saving a trace template saves you the trouble of having to go through all the properties each time to set up the events, data columns, and filters for your favorite traces.

However, if you are executing a long-running trace, you should save to a file or table, as the trace runs to be sure that you capture the entire trace. Saving to a file allows you to clear the current contents of the trace window and not lose the trace information. Also, if you save the trace to a file or a table, you can open it later and specify whatever grouping you want to reorganize output. This flexibility gives you almost endless possibilities for analyzing the trace data.

If you are saving to a trace file as the trace runs, and the trace is expected to be large, then you can use the Enable File Rollover option, which creates a new event file when the file reaches the size that you specify. This allows you to have smaller, more manageable trace files for your review.

  • + Share This
  • 🔖 Save To Your Account

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020