unable to open connection to server host not exist

It takes a day and a half to resolve the client connection to the Oracle database on the server side, unable to connect the problem. Ora-01034:oracle Not available (ORACLE does not exist), ora-27101:shared memory realm does not exist analysis:A few

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I believe that people who have used Oracle databases must have met ldquo; ORA-12154: TNS: unable to resolve the specified connection identifier rdquo; error, I would like to make a small summary here. I believe that people who have used Oracle

server| Data | database | database connection SQL Server 2000 database connection Directory 1 SQL Server 2000 services and instances ... 1 2 SQL Server 2000 database application Architecture ... 2 3 SQL Server 2000 security

After I deleted the original mysql4.0 file in s9, I installed a new mysql5.0 file. During the startup process, I reported an error and failed to start the file. I checked the old post in the group and did not provide a specific description. After I

Records in the error log: [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql. host' doesn' t exist I posted a post. I only saw it, but no one replied. I can only solve the problem by myself. Can I help myself... You don't have

ORA-12154: TNS: unable to resolve the specified connection identifier resolved I believe that people who have used Oracle databases must have encountered the "ORA-12154: TNS: unable to resolve the specified connection identifier" error, I would like

I believe that people who have used Oracle databases must have encountered the "ORA-12154: TNS: unable to resolve the specified connection identifier" error, I would like to make a small summary here. The connection to the Oracle database in a

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The simplest and easiest way to view the number of IIS connections is through site statistics, where the current number of online Web site statistics can be considered the current number of IIS connections. However, the current online number of