How To Troubleshoot Errors In Oracle?
While working with Oracle
database you might face some errors. These errors can be fixed once you
identify the reasons behind this error. Here are the lists of some common
errors that the users come across while using it, the reasons and solutions to
fix these errors are mentioned below:
1. ORA-03113: end-of-file
on communication channel
Reasons:
This error generally appears when the connection between the Client and the Server
breaks. You may also get this error if due to some reasons the external
agent extproc crashes.
Solutions: This issue can be fixed by first checking the
issues related to network and then review the setup of SQL*Net. If you still
face error then look in the alert.log file. At last, test to check,
if server is dead and at the time of failure if a trace file was generated. In
the .NET function, there might be some system calls that terminate the process.
Get rid of such calls.
2. ORA-03114: not connected to
ORACLE
Reasons: The link between the Client and the Server breaks.
Due to some reasons, if the external agent extproc crashes then
this error would be displayed.
Solutions: In such scenarios, you should review the SQL*Net
setup for the network problems. You can also look for errors from the alert.log file
and then test if the server processes is dead and look for the trace file that was
generated at the time of failure. You have to terminate this process in the
.NET function.
3. ORA-20100:
System.BadImageFormatException. The format of the file is invalid.
Reasons: The format of .NET Assembly is not in proper
state.
Solutions: The .NET procedures or functions that are
contained in the .NET assembly format have to be fixed that contains. In such
scenarios recompiling the.NET assembly is required.
4. ORA-20100:
System.IO.FileNotFoundException. File or assembly name
Reasons: Unavailability of the .NET Assembly or any one of
its dependent assemblies in ORACLE_BASE\ORACLE_HOME\bin\clr or
during the creation of the library object by the wizard in one of the specified
subdirectories.
Solutions: you have to copy.NET assembly and its entire dependent
assemblies to ORACLE_BASE\ORACLE_HOME\bin\clr or to any of
its subdirectories as desired.
5. ORA-20100:
System.MissingMethodException
Reasons: MissingMethodException has been
removed due to any of the following reasons
- The stored procedure or function name that
is defined in.NET assembly is not matching with the stored procedure or
function name.
- The parameters stored in the .NET
procedure are not matching with the sequence, number, and type of
parameters entered.
Solutions: In such cases, you should check the names of the
called stored procedure or function for mistakes related to spelling or mismatch
with the upper or lower case. You have to check that the type and sequence of
the parameters and check the number of parameters, then match them with the stored
function or procedure that is defined in.NET assembly.
These errors may lead to
the corruption of the Oracle database files. In some cases if the oracle
database may become corrupt and become inaccessible, then in that case, the
corrupt files can be repaired with the help of Oracle File Repair Tool. It is powerful
and comprehensive application software, which is designed to recover damaged or
corrupt oracle database files.
For more information, visit:
http://oracle.filerepairtool.net/blog/troubleshoot-various-oracle-errors
Post Your Ad Here
Comments