本地oracle数据库每次登录都会报错(ORA-01034:ORACLE not available ORA-27101:shared memory realm does not exit)

本地oracle数据库每次登录都会报错(ORA-01034:ORACLE not available ORA-27101:shared memory realm does not exit 每次使用oracle数据库时，服务启动了，每次都报错(ORA-01034:ORACLE not available ORA-27101:shared memory realm does not exit) 每次

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