(*) if you grant any role to grantee while grantee is connected to database. He cannot use that role immediately. To use it immediately he needs to execute “Set role role_name” in his session. This will enable that role for him or he needs to logoff and login again. (*) If you have given any…
=================================================================== STEP-I First, calculate the total block header size: =================================================================== block header = fixed header + variable transaction header + table directory + row directory where: fixed header = 57 bytes (the 4 bytes at the end of the block have already been taken account of in the 24 bytes for the cache header) variable…
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=========================================================================================================================================== Fine-Grained Auditing Part-I: Reference : from Arup Nanda on http://www.oracle.com/technology/oramag/webcolumns/2003/techarticles/nanda_fga.html ——————————————————————————————————————————————- (*) Traditional Oracle Database auditing options let you track the actions users perform on objects at the macro level for example, if you audit for SELECT statements on a table, you can track who selected data from the table. However, you don’t know…
select c.sid, c.serial#, f.spid as osprocess, c.username, a.object_id, b.object_name, c.program, c.status, d.name, c.osuser, e.sql_text, DBMS_ROWID.ROWID_CREATE(1, c.ROW_WAIT_OBJ#, c.ROW_WAIT_FILE#, c.ROW_WAIT_BLOCK#, c.ROW_WAIT_ROW# ) locked_rowid from v$Locked_object a, All_objects b, v$session c, audit_actions d, v$sqlarea e, v$process f where a.object_id=b.data_object_id and a.session_id =c.sid(+) and c.command=d.action and c.row_wait_obj# != -1 and c.sql_id=e.sql_id and c.paddr = f.addr;
************************************** **** Building Our Own Namespaces ***** ************************************** The USERENV namespace does store extensive information, but the power of SYS_CONTEXT does not stop there. You can also create secured namespaces and store context in them for retrieval within a session or across the instance. For example, if I create a new namespace via the CREATE…
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Note : 1011899.6 – Roles and Creating Stored Objects / Views Note : 180028.1 – Set up a Secure Access to Application Data within a Database: DBAs, Schemas and Users.
*******************************************************************************************Step by Step Implementation of key based authentications from Source A to Destination B. ******************************************************************************************* (1) At source A (1-A) Generate a Key ssh-keygen -t dsa Above command creates a public key file called : id_dsa.pub and private key called id_dsa (1-B) Cat id_dsa.pub to the destination B and save as a file called authorized_keys…
Following command gives, all files that are modified in last 4 days. find /IOTTOARCH/*.arc -mtime -4 -exec ls -rlt {} ; Following command gives, all files that are modified before last 4 days. find /IOTTOARCH/*.arc -mtime +4 -exec ls -rlt {} ;
For Example, Db size : 461 GB. On SAN EMC FC4700
OPENING A STANDBY DATABASE IN READ-ONLY MODE ——————————————— In order to perform queries on a read-only standby database, the database needs to be able to perform on-disk sorting operations. Locally managed temporary tablespaces do not record transactions in the data dictionary. Steps to create a locally managed temporary tablespace 1. Create a temporary tablespace on…
