oracle 11g登陆报错'ORA-12162: TNS:net service name is incorrectly specified'
oracle 11g通过sqlplus登陆数据库报错
sqlplus / as sysdba
'ORA-12162: TNS:net service name is incorrectly specified'
在网上搜索解决方法，建议是设置ORACLES_ID，但设置以后依然报错
解决方法：
更改环境变量
# User specific environment and startup programs
ORACLE_BASE=/u01/app/oracle
export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export ORACLE_HOME
ORACLE_SID=OTA4G
export ORACLE_SID
ORACLE_UNQNAME=OTA4G
export ORACLE_UNQNAME
PATH=$ORACLE_HOME/bin:/usr/sbin:$PATH
export PATH
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib:$CLASSPATH
export CLASSPATH
sqlplus / as sysdba
'ORA-12162: TNS:net service name is incorrectly specified'
在网上搜索解决方法，建议是设置ORACLES_ID，但设置以后依然报错
解决方法：
更改环境变量
# User specific environment and startup programs
ORACLE_BASE=/u01/app/oracle
export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export ORACLE_HOME
ORACLE_SID=OTA4G
export ORACLE_SID
ORACLE_UNQNAME=OTA4G
export ORACLE_UNQNAME
PATH=$ORACLE_HOME/bin:/usr/sbin:$PATH
export PATH
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib:$CLASSPATH
export CLASSPATH
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