unknown host specified in sql developer

Oracle 10g OEM regular error solving ------- Unknown host specified Oracle Enterprise Manager provides a web-based interface-based tool for managing a single oracle database. Since OEMs use web-based applications, therefore, http is used. When you log on to www.2cto.com: database error I/O exception: Unknown

Tags: oracle restore unknown host specifiedRestoring Oracle one-to-one G to Oracle 10G today, there was a problem with version mismatch first.This problem can be resolved by using the workaround in http://hundage.blog.51cto.com/3779401/1285465.After resolving a problem with a header file validation failure, the Execute RESTORE command always prompts the user not to exist.In the Run dialog box, enter cmd > S

OEM, open $ ORACLE_HOME/HOSTNAME_SID/sysman/config/emd. properties, and set the last lineAgentTZRegion = GMTChangeAgentTZRegion = Asia/ShanghaiFor specific time zone names, you can view $ ORACLE_HOME/sysman/admin/supportedtzs. lst or Select TZNAME From v $ timezone_names through data query;In general, you can restart the instance after the configuration is complete. This error may also occur: Database Error Io exception: Unknown

After Oracle 10g R2 is installed, the following errors are prompted when you log on to the Web console: Io exception: Unknown host specified; Java. Lang. Exception: exception in sending request: NULL; "Agent process exited abnormally during initialization" in System Event Log; Cause: this problem is caused by the time zone error automatically configure

When I use ORACLE 10 Gb, I use system to log on to the enterprise manager, but I can log on to some Oracle functions (for example, after logging on, click the "manage" menu to open the management interface) the following errors may occur: Io exception: Unknown host specified; "Java. Lang. Exception: exception in sending request: NULL ". Note: This is also the

is the time zone setup problem, and the workaround is to modify the time zone of the configuration file. Stop the OEM, and then open $oracle_home/hostname_sid/sysman/config/emd.properties, and the last line Agenttzregion=gmt Change into Agenttzregion=asia/shanghai The specific time zone name can be viewed $oracle_home/sysman/admin/supportedtzs.lst or through the data query select Tzname from V$timezone_names; Typically, this setting is complete and then restarted. You may also experience this e

, open $ ORACLE_HOME/HOSTNAME_SID/sysman/config/emd. properties, and set the last lineAgentTZRegion = GMTChangeAgentTZRegion = Asia/ShanghaiFor specific time zone names, you can view $ ORACLE_HOME/sysman/admin/supportedtzs. lst or Select TZNAME From v $ timezone_names through data query;In general, you can restart the instance after the configuration is complete. This error may also occur: Database Error Io exception: Unknown

Tags: add SQL and article tle specified data javascrip too Reprint Please specify source: http://blog.csdn.net/dongdong9223/article/details/50728536This article is from "I'm a fish-hook blog." Connect Oracle using the PL/SQL Developer tool and error when logging in: ORA-12154:TNS:couldnot resolve the co

Background:On the local machine (Win7 64-bit flagship Edition) Install the Oracle 11g Client32-bit ORACLE clientIf the 64-bit ORACLE client is installed, you cannot enter the sqlplus/nolog command in the CMD command, that is, the command cannot be identified.) After setting the corresponding local service, the following error is prompted with PL/SQL Developer:"Cocould not load "...... \ Bin \ oci. dll"" Thi

Pity my C-disk was only 8.XG, so I had to unload it. Unloading itself is not a problem, just last night suddenly found that SQL Server 2008 R2 Management Studio suddenly could not create a new database diagram, the establishment will report "The specified module (MS Visual Database Tools)" Error: I even carefully evaluated the possibility of reconfiguring the database for this error. Helpless this R2 SQL20

Tags: plsql developer ora-12154 TNS cannot resolve the specified connection identifierBackground:On this machine (Win7 64-bit flagship edition ), install the Oracle 11g Client ( 32-bit Oracle client installed, if the 64-bit Oracle client is installed, in the cmd command, enter Sqlplus/nolog command is unrecognized, that is, unrecognized), and after setting the appropriate local service, use PL/