电脑重启后 oracle ORA-12514: TNS: 监听进程不能解析在连接描述符的问题

本人装了oracle11G后，用PL/SQL连接 没问题， 但是重启下电脑后发下无法连接，网上找了找发现

lintener.ora文件上 要加上一段 原本是

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(GLOBAL_DBNAME = Oracle8)

(SID_NAME = ORCL)

)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

)

要改成

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(GLOBAL_DBNAME = Oracle8)

(SID_NAME = ORCL)

)

(SID_DESC =

(GLOBAL_DBNAME = orcl)

(ORACLE_HOME = D:\app\xwt\product\11.1.0)

(SID_NAME = orcl)

)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

)

在改的过程中 ，有碰到头疼的问题，因为我装的是win7，没法修改listener.ora文件，所以没办法 改了后拷到 桌面上，再删除掉原本的，最后 在复制进去

重启电脑 链接 没问题，问题解决

另外碰到一个问题是，之前一个同事把pl/sql安装进c盘下面的program下面，这样也会提示出无法连接，只要把pl/sql安装到别的盘就行了