A serious problem in Oracle8i was the requirement that all dedicated connections use a one-size-fits-all sort_area_size . Oracle 9i and beyond now has the option of running automatic PGA memory management.
Oracle has introduced a new Oracle parameter called pga_aggregate_target . When the pga_aggregate_target parameter is set and you are using dedicated Oracle connections, Oracle9i will ignore all of the PGA parameters in the Oracle file, including sort_area_size, hash_area_size and sort_area_retained_size . Oracle recommends that the value of pga_aggregate_target be set to the amount of remaining memory (less a 10 percent overhead for other UNIX tasks) on the UNIX server after the instance has been started.
Once the pga_aggregate_target has been set, Oracle will automatically manage PGA memory allocation based upon the individual needs of each Oracle connection. Oracle9i allows the pga_aggregate_target parameter to be modified at the instance level with the alter system command, thereby allowing the DBA to dynamically adjust the total RAM region available to Oracle9i.
Oracle9i also introduces a new parameter called workarea_size_policy . When this parameter is set to automatic, all Oracle connections will benefit from the shared PGA memory. When workarea_size_policy is set to manual, connections will allocate memory according to the values for the sort_area_size parameter. Under the automatic mode, Oracle tries to maximize the number of work areas that are using optimal memory and uses one-pass memory for the others.
In addition to increasing the amount of memory devoted to sorting, you should also hunt down inefficient SQL that cause needless sorts. For example, union all does not cause a sort, whereas union does in a SQL query (to eliminate duplicate rows). The distinct keyword is oftentimes coded inappropriately (especially by folks transferring from Microsoft Access, which used to use distinct for nearly every query).
Tuesday, December 16, 2008
Sinus Infection Symptoms
Sinus Infection Symptoms
Sinus infection symptoms include:
• Headache
• Pain
• Upper jaw and tooth ache
• Tenderness around the nose, forehead and cheeks
• Swelling and pressure around the eyes
• Ear ache and infection
• Fever
• Weakness or fatigue
• A cough, runny nose or nasal congestion
Sinus infection symptoms are caused by inflammation and blockage of the sinus cavities. Sinuses are hollow pockets of air located on either side of the nose, behind and in-between the eyes, and in the forehead. The sinuses produce mucus that cleans and moistens the membranes of the nose and throat. Each sinus has an opening into the nose that allows for free exchange of mucus and air. Sinus infection symptoms result when these openings get plugged. As mucus and pressure build in the sinuses, a perfect breading ground for bacterial growth is produced.
Sinus infection symptoms are usually treated with an antibiotic, various nasal sprays, or other medication. Because sinus infection symptoms are common and chronic for many individuals, preventative measures are often used to avoid the discomfort and pain usually associated with a sinus infection. Simple activities, using a humidifier and regularly cleansing nasal passages, for example, can greatly decrease your chances of experiencing sinus infection symptoms.
Xlear™ Nasal Wash is a patented, non-addictive nasal spray designed to aid in the relief and management of sinus infection caused by pollutants, allergens and infections of the nasal passages. Unlike other nasal sprays that can actually aggravate a sinus infection if overused, Xlear Nasal Wash contains only natural ingredients and is non-habit forming. It is the ONLY nasal wash that combines the unique properties of the natural substance, Xylitol, and the health-promoting practice of a saline nasal spray to help wash, hydrate and moisturize the nasal passages. Xylitol is one of bacteria's natural enemies. When certain harmful bacteria enter the body, they attach to the membranes of the nose and throat. Unlike most antibiotics which kill the majority of bacteria and leave the resistant, super bacteria behind, Xlear Nasal Wash merely flushes harmful bacteria away.
The makers of Xlear Nasal Wash, Xlear Inc., have also developed a number of other products, based on pure Xylitol, which will greatly improve the quality of your life. To find our more, visit Xlearinc.com. Put the power of Xylitol to work for you and start feeling better today!
Sinus infection symptoms include:
• Headache
• Pain
• Upper jaw and tooth ache
• Tenderness around the nose, forehead and cheeks
• Swelling and pressure around the eyes
• Ear ache and infection
• Fever
• Weakness or fatigue
• A cough, runny nose or nasal congestion
Sinus infection symptoms are caused by inflammation and blockage of the sinus cavities. Sinuses are hollow pockets of air located on either side of the nose, behind and in-between the eyes, and in the forehead. The sinuses produce mucus that cleans and moistens the membranes of the nose and throat. Each sinus has an opening into the nose that allows for free exchange of mucus and air. Sinus infection symptoms result when these openings get plugged. As mucus and pressure build in the sinuses, a perfect breading ground for bacterial growth is produced.
Sinus infection symptoms are usually treated with an antibiotic, various nasal sprays, or other medication. Because sinus infection symptoms are common and chronic for many individuals, preventative measures are often used to avoid the discomfort and pain usually associated with a sinus infection. Simple activities, using a humidifier and regularly cleansing nasal passages, for example, can greatly decrease your chances of experiencing sinus infection symptoms.
Xlear™ Nasal Wash is a patented, non-addictive nasal spray designed to aid in the relief and management of sinus infection caused by pollutants, allergens and infections of the nasal passages. Unlike other nasal sprays that can actually aggravate a sinus infection if overused, Xlear Nasal Wash contains only natural ingredients and is non-habit forming. It is the ONLY nasal wash that combines the unique properties of the natural substance, Xylitol, and the health-promoting practice of a saline nasal spray to help wash, hydrate and moisturize the nasal passages. Xylitol is one of bacteria's natural enemies. When certain harmful bacteria enter the body, they attach to the membranes of the nose and throat. Unlike most antibiotics which kill the majority of bacteria and leave the resistant, super bacteria behind, Xlear Nasal Wash merely flushes harmful bacteria away.
The makers of Xlear Nasal Wash, Xlear Inc., have also developed a number of other products, based on pure Xylitol, which will greatly improve the quality of your life. To find our more, visit Xlearinc.com. Put the power of Xylitol to work for you and start feeling better today!
How To Set V$SESSION Properties Using the JDBC Thin Driver
How To Set V$SESSION Properties Using the JDBC Thin Driver
Please refer to Metalik Note No. : Note:147413.1
https://metalink.oracle.com/metalink/plsql/f?p=130:14:2198418802614936364::::p14_database_id,p14_docid,p14_show_header,p14_show_help,p14_black_frame,p14_font:NOT,147413.1,1,1,1,helvetica#FIX
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