What is difference between static and dynamic parameter in oracle database

By -

We need to check v$parameter table and find the coumn name in ISSUE_MODIFIABLE




Static parameter

The ISSUE_MODIFIABLE column value FALSE means parameters are static parameter

Static parameter values change the value in spfile only so we need to restart the database otherwise it 
will be reflect on next database bounce.

Must we need to use scop=spfile

EX:
SQL>Alter system set sga_max_size=50m scope=spfile;


Dynamic parameter:

The ISSUE_MODIFIABLE column value Immediate means parameter are dynamic  parameter

We can change the dynamic parameter in anytime no need to bounce for this changes

This changes are applied in database memory and spfile

We can use scope=memory and scope=both parameters

EX:
SQL> Alter system set log_archive_dest=’/u01/arch’ scope=both;


Meaning of scope= memory|spfile|both

Scope:
Changes should be made in memory spfile and both areas

Scope=Memory:
Change the parameter values in current running instance and dynamic parameters, changes are applied in memory only. No static parameter change is allowed

Scope=Spfile:
Change the parameter values in spfile only. For static and dynamic parameters, changes are recorded in the spfile. If using spfile parameter system must be restart.

Scope=Both:
Change parameter values in current running instance and spfile and dynamic parameters, the change is applied in both the server parameter file and memory. No static parameter change is allowed

Refer:
Oracle Pfile and spfile à click hear

Comments

Post a Comment

Popular posts from this blog

How to troubleshoot long running concurrent request in R12.2

By -
Normally we are getting concurrent program running longer and concurrent request not picking jobs, etc. those are very frequent issue we expected from development team. Collect below basis level of information to development team 1 Oracle seeded program/Custom program? 2 How much time it used earlier? 3 Is there any recent code change done in concurrent program? 4 Is this program fetching higher data compare to last run? 5 Does this job running any specific time/ It can be run any time? 6 Does this job fetching data using DB link? 7 Does the problem happen on both the test and production instance? Once asked above questions to development team in meanwhile we need to start basic sanity check in our environment. 1 Verify the status of the concurrent program Copy select REQUEST_ID,phase_code,status_code,ORACLE_SESSION_ID from apps.fnd_concurrent_requests where request_id=’1234567’;
Read more

How to run Gather Schema Statistics in R12.2

By -
Image
What is Gather Schema Statistics? Gather Schema Statistics program generates statistics that quantify the data distribution and storage characteristics of tables, columns, indexes, and partitions. The cost-based optimization (CBO)  uses these statistics to calculate the selectivity of prediction and to estimate the cost of each execution plan. Why Run the Gather Schema Statistics? When Data is update, insert, delete in table of user end Like (Technical User ,Finance User ,Ect) It become necessary to run the Gather Schema Statistics It’s recommended to Run GSS in Weekly Once or twice. How to run Gather Schema Statistics? Login application with sysadmin user Submit Request Window Navigate to: Concurrent > Requests Enter the parameters This can be run for specific schemas by specifying the schema name or enter ‘ALL’ to gather statistics for every schema in the database Submit the Gather Schema Statistics program Parameters: Schem
Read more

How to compile forms in R12.2

By -
STEP 1--> Login to app server STEP 2--> Go to  directory $AU_TOP/forms?US STEP 3--> Move to ".fmb" file STEP 4--> Execute the below command to generate ".fmx" frmcmp_batch userid=apps/<apps_pwd> module=<form_name>.fmb output_file=<form_name>.fmx module_type=form batch=no compile_all=special (EX):-   frmcmp_batch userid=apps/apps module=JAINTAXT.fmb output_file=$JA_TOP/forms/US/JAINTAXT.fmx module_type=form batch=no compile_all= special (O/p):   Created form file /oracle/CLONE/apps/fs2/EBSapps/appl/ja/12.0.0/forms/US/ JAINTAXT.fmx Refer: R12: How to Compile a Form in Release 12 (Doc ID 1085928.1)
Read more