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You may hit performance issue on your dataguard setup. You may not hit the transfer gap but You may have an apply gap on your standby site. It can because some critical issue if your primary side goes down.
There are some trick which You can increase your performance on the Standby database on your dataguard setup
I assume that your standby has apply gap more than 2 hours.
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I faced with that error message on 12.1.0.2.0 EE version on RHEL6
Here are the error messages
SQL> startup nomount; ORA-27126: unable to lock shared memory segment in core Linux-x86_64 Error: 12: Cannot allocate memory Additional information: 3894 Additional information: 2129923 Additional information: 6090752
If your export size volume is huge than you may need to split export files instead of single FS. In this case, We need to use the multiple directories feature of EXPDP utility.
By using this feature, We can create multiple dump files in multiple directories and distribute our logical export to different directories on the operating system.
In my case my db version in 11.2.0.4 and my os is linux 6
I faced with that issue trying to install Oracle 11g database on Linux 6. Here is the screenshot:
I face with that error message while I was making 12c installation on Solaris machine. The Screen shoot is:
The X$ tables are owned by the SYS database user and are read-only, which is why they are referred to as fixed tables and the V$ views are referred to as fixed views. This statement might be a juicy invitation for you to try to verify this read-only property. Any attempt to alter these tables with a DDL or DML statement is met with an ORA-02030 error.
Only SYS can query the X$ tables, they cannot be granted. However, you can create view on them and grant the view.
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I hit with that error message during the export&import process on 12c database on Linux
While I am checking import log, I noticed below error message:
ORA-13249: Error in R-tree: [mdrcrtscrt] ORA-13231: failed to create index table [MY_OBJECT$] during R-tree creation ORA-13249: Stmt-Execute Failure: CREATE TABLE "MY_SCHEMA"."MY_OBJECT$"(NODE_ID NUMBER,NODE_LEVEL NUMBER,INFO BLOB) LOB (INFO) STORE ORA-39083: Object type INDEX:"MY_SCHEMA"."GI_LOCATION_1" failed to create with error: ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine ORA-13249: internal error in Spatial index: [mdidxrbd] ORA-13249: Error in Spatial index: index build failed
One of our Prod systems is running on Windows server. While I am trying to connect database as sysdba user it throws A-01031: insufficient privileges
C:\Windows\>sqlplus “/ as sysdba”
SQL*Plus: Release 11.2.0.1.0 Production on Mon Apr 27 13:15:06 2018
ERROR:
ORA-01031: insufficient privileges
I faced this issue while working with preparing standby database with E-Business Suite R12.1 with 11gR2-RAC on ASM
I have E-Business Suite R12.1.2 with 11.2.0.4 RAC database which is working on ASM
I needed to create standby server. I followed below command on the primary database to can create RMAN backup for can create standalone standby database.
