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As we discussed earlier, a lot of activity can occur in tempdb. In some cases, you can take steps to reduce SQL Server use of tempdb, helping to boost overall SQL Server performance. Although this is not a comprehensive list, here are some actions you may want to avoid: Using user-created temp tables. Often, I have seen T-SQL code that creates temp tables unnecessarily when the code could have been written to perform the same task without using temp tables. If you have to use a temp table, and the table has several thousand rows and is accessed frequently, consider adding an index to the table to boost performance of queries that are run against it. You may have to experiment with indexing to see if it helps or hurts overall performance. Scheduling jobs, such as DBCC CHECKDB, that use tempdb heavily, at times of the day when the SQL Server instance is busy. Using static- and keyset-driven cursors. In many cases, cursors can be avoided by rewriting the code. Using recursive common table expression queries. If the execution plan for such a query shows a spool operator, then you know that tempdb is being used to execute it. Using the SORT_IN_TEMPDB option when creating or rebuilding an index. Or if you decide to use this option, schedule the job to run during a less busy time of the day. Using online index rebuilding (Enterprise Edition), which uses row versioning and, in turn, uses tempdb. Using large object data types. Using table variables.

Returning and sorting excessive amounts of data. Smaller sorts can be done in memory, but larger sorts spill over into tempdb. Returning and aggregating excessive amounts of data. Using joins that indicate a hash-type join in the query s execution plan. Using AFTER and INSTEAD OF triggers. Using row-versioning-based transaction isolation levels. You may know that you can t avoid using the features in the previous list. If that s the case, then use them. Be aware that each of the choices in the list directly impact tempdb s performance. If you are having tempdb bottleneck issues and can t reduce the activity occurring in tempdb, you will have to resort to using some of the other tempdb optimization suggestions in this chapter instead.

8 The term shortwave, in reference to radio, refers to signals having wavelengths of approximately (a) 10 mm to 100 mm (b) 100 mm to 1 m (c) 1 m to 10 m (d) 10 m to 100 m 9 Which of the following is illegal to do in the United States using a ham radio station (a) Advertise used cars for sale (b) Transmit Morse code (c) Receive outside the amateur radio bands (d) Receive signals without a license 10 A file server is (a) a sensitive radio receiver equipped with D/A conversion (b) a radio transmitter equipped with digital signal processing (DSP) (c) a central computer in a local area network (d) a repeater in a LEO satellite system 11 A device consisting of a receiver and transmitter in the same case or enclosure, and commonly used for wireless communications, is called (a) a file server (b) a transceiver (c) a transverter (d) an encoder/decoder 12 End-to-end encryption provides (a) maximum range in a wireless LAN (b) a higher degree of security than wireless-only encryption (c) simultaneous transmission and reception in an amateur radio station (d) an easy means for hackers to clone cell phone sets 13 A LAN in which each computer has more or less equal status, and in which each computer stores its own data, is known as a (a) wireless router (b) wide-area LAN (c) LAN topology (d) peer-to-peer LAN 14 With respect to security, the term mil spec refers to (a) wireless-only encryption (b) a peer-to-peer network (c) the use of a wireless router (d) the highest obtainable level of security

variable named para2, as shown in boldface here:

Every time SQL Server restarts using its default settings, a new 8 MB copy of tempdb is created (regardless of the model database s size), and autogrowth is set to 10 percent with unrestricted growth Other than for the smallest SQL Server instances, 8 MB is rarely large enough, and because of this, tempdb must grow on demand to whatever size is necessary for your SQL Server instance to continue functioning As you might expect, allowing autogrowth to size tempdb can often be problematic For example, let s say that the average size for tempdb for a particular SQL Server instance is 1 GB In this case, when SQL Server is restarted, the initial size of tempdb is 8 MB Soon thereafter, autogrowth kicks in and grows tempdb 10 percent, over and over again, until it reaches its optimal size of about 1 GB.

tell the application "Microsoft Word" activate open "Macintosh HD:Users:guy:Documents:Sample Documentdocx" insert paragraph at the beginning of the text object of the active document insert paragraph at the beginning of the text object of the active document set para1 to the first paragraph of the active document set para2 to the second paragraph of the active document end tell