PL/SQL连接oracle配置

PL/SQL 只支持32位oracle，
64位绿色版：http://dldx.csdn.net/fd.php?i=622085150438794&s=d19ecb12a9441b4a124abac2d6ed93bc
解压PLSQL后设置TNS,打开：instantclient_11_2\tnsnames.ora，修改host

1.报12541错误：检测服务器Listener正常，防火墙端口正常，打开listener.ora,把host从localhost改成ip或本机主机名

2.报12514：
打开listener.ora,增加红色部分

SID_LIST_LISTENER =

(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = d:\app\Administrator\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:d:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = d:\app\Administrator\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
)
)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST =my-PC)(PORT = 1521))
)
)