Change Default Value Of Certain Column In A Table In Oracle 11g
Aug 18, 2013
I have a table called cust_file, his table consists of a lot of columns (one of these columns called cus_tax) and have a lot of data,I use oracle 11g, I want to change the default value of the column cus_tax to be equal 1, I wrote
ALTER TABLE cust_file MODIFY(cus_tax DEFAULT 1); table alteredbut
after I inserted new data to test the operation, I found that the new record has a value
= null for the column cus_taxthen
I tested using the following query select
data_default from all_tab_columns where table_name='CUST_FILE' and column_name='CUS_TAX'; no rows selected...
How datafile is created with 640 file permission by oracle software.(I know for security reasons it is created with 640 permission)
example: -rw-r----- 1 orasd dba 104865792 Mar 15 01:17 users01.dbf
I want to change the datafile permission as below. how to change the default value of the datafiles permission from (640) to (644) internally while creating the datafile from oracle side.
example: -rw-r--r-- 1 orasd dba 104865792 Mar 15 01:17 users01.dbf
Quote: Oracle Database 11g Release 2 (11.2.0.2) New Features in Oracle XML DB
The following Oracle XML DB features are new in Oracle Database 11g Release 2 (11.2.0.2).
Default Storage Model for XMLType
The default XMLType storage model is used if you do not specify a storage model when you create an XMLType table or column. Prior to Oracle Database 11g Release 2 (11.2.0.2), unstructured (CLOB) storage was used by default. The default storage model is now binary XML storage.
We have a application which works fine on r1 but not on r2 due to this change, we are going to investigate resolving the issue on the application in the future, in the mean time we need to be able to use the CLOB storage.
Does any one know where we can change this functionality back to the pre 11gR2 change?
by default backup area is FRA, It can be change by db_recovery_file_dest FRA contains archivelog ,backupset,datafile,onlinelog folders..
NOW, i specially want to change backup dest. of archvelog to C: (suppose i have C , D, E, F , G) - (i know for archivelogs its log_archive_dest_N command can backup copies to other location but it also goes to default FRA )
backupset to D: datafile to E: onlinelog to F: controlfile to G: ALL SHOULD CONTAIN ONLY 1 DESTINATION NOT 2 FOR BACKUPS
i am trying to chnage the default port number of listener but facing problems in instance registration. i did as follows:
1. stop the listener as lsnrctl stop (default listener). 2. chnage the listener.ora and tnsnames.ora with desire port numbers (1526) as follows:- [code] LISTENER = (DESCRIPTION_LIST = (DESCRIPTION =
[code]...
but i didnt get the reason of aforsaid error and my instance is not registering
I am trying to change the default behavior of Hide/Show Region to show, after some attempts i got it partially working but now clicking the icon to toggle hide/show doesn't work also changed the icons and added type="" but its not working.
I am using oracle 11.2.0 in linux platform.i have created a listener for the asm database. and i am using non default port of 1525 whenever i go for lsnrctl>status always shows for the port 1521. i don't want the default port 1521 and i have changed the local listener as listener1 with port 1525 protool tcp in spfile and registered with the asm database.Is there any option to change the default listener as listener1.
also,everytime when i give lsnrctl>show current_listener it is showing "listener"
i have set the current-listener to listener1 and save_config listener1 and reloaded.After exit and enter lsnrctl>status it will show for port 1521 When i attempt to start listener1 every time. it will prompt listener1 is already running.
I'm using Oracle 11g enhanced ADD COLUMN Functionality. Adding new columns with DEFAULT values and NOT NULL constraint no longer requires the default value to be stored in all existing records.
Sometimes we change DB columns from NOT NULL with DEFAULT to NULL with DEFAULT. This operation "materialize" column default. Is there an easy way (Dictionary view) how to find, that COLUMN default value is stored as metadata or is "materialized" ?
Oracle RDBMS version : Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
I have created a form. Some of the elements are hidden such as updated_by and update_date. I have provided the default values for these attributes as pl/sql expression in the "default section" (Application->page->edit page item). I am using the Process Row process that is automatically created when a form is created.
The problem is when I click the update button, the updated_by and update_date is passed as null values which throws an error from the database.
I have created a IR report and I set the default search column using the suggestion found in the thread URL....but how can I keep this default even after the research was done?Now it is resetted !
I'm having a problem with a column that is too short for it's data. It causes multiple lines for the same record. How can I change a column width in Oracle? I'm using a select statement to see the data.
I have a table as below. This table is not partitioned.
create table t1 ( d1 date, n1 number not null );
[Code]....
I took an export dump of the above table and after that I renamed the table t1 to t1_old. Then I recreated the table as below with a default constraint on d1 field.
create table t1 ( d1 date default to_date('01/01/1100','DD/MM/YYYY','NLS_CALENDAR=GREGORIAN'), n1 number not null
[Code]....
But the problem here is the data import is taking too much time than what I expected. I can't afford a maxvalue partition here as of my DBA team mentioned if you add maxvalue partition adding partition later in a stage is difficult on this table
apply in this scenario and make the import faster. I am using oracle 10.2.0.1.0 version.
i am practicing to get Dynamic columns as i have learnt from Orafaq SQL/PLSQL forum .i am using Default EMP table...first one is running smoothly as below:
I have to change the datatype of a column from CLOB to varchar2, without changing the order of the columns. The table has no data. I could find any other way other than dropping the CLOB columns and then adding new columns with varchar2 datatype. But this changes the order of the columns in the table.
