The
DBMS_RESULT_CACHE
package provides an interface to allow the DBA to administer that part of the shared pool that is used by the SQL result cache and the PL/SQL function result cache. Both these caches use the same infrastructure. Therefore, for example, DBMS_RESULT_CACHE
.BYPASS
determines whether both caches are bypassed or both caches are used, and DBMS_RESULT_CACHE
.FLUSH
flushes both all the cached results for SQL queries and all the cached results for PL/SQL functions.See Also:
Catalone44 April 23, 2013 / Version: Flash Memory Toolkit 2.0.1 2013-04-23 11:29:16 By catalone44. Start studying Unit 1.2 Memory. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
- Oracle Database PL/SQL Language Reference for more information about 'Using the Cross-Session PL/SQL Function Result Cache'
- Oracle Database Performance Tuning Guide for more information about 'Result Cache Concepts'
This chapter contains the following topics:
- Security Model
- Constants
The new 1TB eUFS 2.1 will allow smartphones users to enjoy storage capacity levels comparable to that of a premium notebook without the need for additional memory cards, the South Korean tech. The latest version of Flush Memory can be downloaded for Mac OS X 10.6 or later. The following versions: 1.1 and 1.0 are the most frequently downloaded ones by the program users. The actual developer of this software for Mac is Paola Petrelli & Giorgio Vinciguerra. Flush Memory for Mac lies within System Tools, more precisely System Optimization. The command mentioned in post #2 will in fact clear memory. But this is a thoroughly BAD idea which will impair performance. Windows is fully capable of clearing unused memory when needed. My advice would be to let Windows manage memory as it wishes. That is what the real experts do.
Using DBMS_RESULT_CACHE
Security Model
Only database administrators should be granted the
EXECUTE
privilege for this package.Constants
Table 133-1 DBMS_RESULT_CACHE Constants
Constant | Definition |
---|---|
STATUS_BYPS | CONSTANT VARCHAR(10) := 'BYPASS'; |
STATUS_CORR | CONSTANT VARCHAR(10) := 'CORRUPT'; |
STATUS_DISA | CONSTANT VARCHAR(10) := 'DISABLED'; |
STATUS_ENAB | CONSTANT VARCHAR(10) := 'ENABLED'; |
STATUS_SYNC | CONSTANT VARCHAR(10) := 'SYNC'; |
Summary of DBMS_RESULT_CACHE Subprograms
Table 133-2 DBMS_RESULT_CACHE Package Subprograms
Subprogram | Description |
---|---|
Sets the bypass mode for the Result Cache | |
Attempts to remove all the objects from the Result Cache, and depending on the arguments retains or releases the memory and retains or clears the statistics | |
Invalidates all the result-set objects that dependent upon the specified dependency object | |
Invalidates the specified result-set object(s) | |
Produces the memory usage report for the Result Cache | |
Checks the status of the Result Cache |
BYPASS Procedure
This procedure sets the bypass mode for the Result Cache:
- When bypass mode is turned on, it implies that cached results are no longer used and that no new results are saved in the cache.
- When bypass mode is turned off, the cache resumes normal operation.
Parameters
Table 133-3 BYPASS Procedure Parameters
Parameter | Description |
---|---|
bypass_mode |
|
session |
|
Usage Notes
This operation is database instance specific. Aiseesoft mac screen recorder 2 0 300.
Examples
This operation can be used when there is a need to hot patch PL/SQL code in a running system. If a code-patch is applied to a PL/SQL module on which a result cached function directly or transitively depends, then the cached results associated with the result cache function are not automatically flushed (if the instance is not restarted/bounced). This must be manually achieved.
To ensure correctness during the patching process follow these steps:
- Place the result cache in bypass mode, and flush existing result.This step must be performed on each instance if in a Oracle Real Application Clusters environment.
- Apply the PL/SQL code patches.
- Resume use of the result cache, by turning off the cache bypass mode.This step must be performed on each instance if in a Oracle Real Application Clusters environment.
FLUSH Function & Procedure
This function and procedure attempts to remove all the objects from the Result Cache, and depending on the arguments retains or releases the memory and retains or clears the statistics.
Parameters
Table 133-4 FLUSH Function & Procedure Parameters
Parameter | Description |
---|---|
retainMem |
|
retainSta |
|
Return Values
TRUE
if successful in removing all the objects.INVALIDATE Functions & Procedures
This function and procedure invalidates all the result-set objects that dependent upon the specified dependency object.
Parameters
Table 133-5 INVALIDATE Function & Procedure Parameters
Parameter | Description |
---|---|
owner | Schema name |
name | Object name |
object_id | Dictionary object number |
INVALIDATE_OBJECT Functions & Procedures
This function and procedure invalidates the specified result-set object(s).
Parameters
Table 133-6 INVALIDATE_OBJECT Function & Procedure Parameters
Parameter | Description |
---|---|
id | Address of the cache object in the Result Cache |
cache_id | Cache-id |
MEMORY_REPORT Procedure
This procedure produces the memory usage report for the Result Cache.
Parameters
Table 133-7 MEMORY_REPORT Procedure Parameters
Parameter | Description |
---|---|
detailed |
|
Usage Notes
Invoking this procedure from SQL*Plus requires that the serveroutput be turned on.
Flush Memory 2 1 120
STATUS Function
This function checks the status of the Result Cache.
Return Values
One of the following values:
STATUS_DISA
- Cache is not availableSTATUS_ENAB
- Cache is availableSTATUS_BYPS
: Cache has been made temporarilyunavailable.STATUS_SYNC
- Cache is available, but synchronizing with Oracle RAC nodes
How to clear memory and increase RAM in Windows 10/8/7?
Flush Memory 2 1 12 Times
Have you ever met this issue that your computer is equipped with a very big hard drive, but the computer still runs very slow? Do you know why?
The primary reason is that your computer is having a high CPU usage issue which means that your computer CPU RAM is highly occupied by some programs and software, which then slows down your PC.
The primary reason is that your computer is having a high CPU usage issue which means that your computer CPU RAM is highly occupied by some programs and software, which then slows down your PC.
So how to fix the high CPU RAM usage error on Windows PC? The best way is to free up, clear memory and increase RAM. But how?
Flush Memory 2 1 1/2
If you are looking for a simple way to fix the high CUP usage issue by increasing RAM and free up memory on Windows PC, you are at the right place. You can directly follow any one of the below-provided methods to get rid of high CPU usage issue and increase RAM on your computer now:
Quick Fix: Close Unnecessary Running Programs to Increase RAM
1. Press Ctrl + Alt + Del keys at the same time to bring up Task Manager.
2. Select Task Manager, go to Processes, locate and find the programs or software that are taking the most memory and CPU usage.
2. Select Task Manager, go to Processes, locate and find the programs or software that are taking the most memory and CPU usage.
3. Select those programs that are taking the most CPU and click End Task to close them from running on your PC.
By doing so, you can quickly fix high CPU usage issue, and you can run your computer at a fast speed again.
Flush Memory 2 1 1/4
Method 1. Disable and Remove Software/Programs from Startup to Increase RAM
To fully resolve the problem and increase RAM, you are highly recommended to disable and remove software and programs to boot from the Startup. This will effectively help you increase the RAM on Windows 10/8/7 PC.
Here are the detailed steps for disabling unnecessary programs and tools from Startup:
1. Right-click the Start and select Control Panel.
2. Enter Control Panel, find and double-click Administrative Tools.
3. Select and double-click on System Configuration.
2. Enter Control Panel, find and double-click Administrative Tools.
3. Select and double-click on System Configuration.
4. Go to Startup tab, click Open Task Manager;
5. Select the useless program or unnecessary software that you want to remove or disable from the Startup and click Disable.
Method 2. Restart Windows Explorer to Clear Memory
1. Press Ctrl + Alt + Del keys at the same time and select Task Manager from the listed options.
2.Find Explorer and click Restart.
2.Find Explorer and click Restart.
Cdock 1 1 1 download free. By doing this operation, the Windows will potentially free up some memory RAM.
Method 3. Install A RAM Cleaner Software/Tool
Under the most circumstances, it's effortless to clean the memory and free up RAM with a professional RAM cleaner software.
If you search online, you'll find a lot of recommended RAM cleaner software such as Cleanmen, Minimem, Super Memory Cleaner (for Mac), etc. Available for you to download.
If you search online, you'll find a lot of recommended RAM cleaner software such as Cleanmen, Minimem, Super Memory Cleaner (for Mac), etc. Available for you to download.
If you don't want to spend time for doing so, here we'd like to recommend you to try an excellent RAM cleaner alternative software - EaseUS Partition Master Free which supports you to remove useless programs from PC and optimize computer performance with its Cleanup and Optimization feature for free in Windows 10/8/7.
Method 4. Add More RAM to Increase RAM
The most direct way to increase RAM is to add more RAM to your computer or laptop.
1. The first step that you need to do is to detect and identify what kind of RAM your computer is using.
2. Then you can buy a new RAM - 4GB, 8 GB or 16GB to add to your computer or laptop.
2. Then you can buy a new RAM - 4GB, 8 GB or 16GB to add to your computer or laptop.