When apply the Patch we got error like
/oracle/app/oracle/product/11.2.0.4/DOYENSYS/lib/libclntsh.so.11.1 is in online
So we move the file or rename the file to
/oracle/app/oracle/product/11.2.0.4/DOYENSYS/lib/libclntsh.so.11.1_old
Once apply the patch we started the database and listener after that again we bring down the DB for maintenance once it completed we start the DB but it shows error like "COREDUMP MEMORY "
sqlplus / as sysdba
COREDUMP MEMORY or MEMORY SEGMENT ERROR
it didnot shows the sql> prompt
Solution :
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$cd $ORACLE_HOMME
$ relink all