Enterprise Manager

EM_EXPRESS_ALL, How and Why

by Ed Chen
May 17, 2023April 26, 2023

EM_EXPRESS_ALL Whereas EM_EXPRESS_BASIC provides some basic privileges to monitor properties through EM, EM_EXPRESS_ALL, also an Oracle predefined role, has some more advanced privileges which enable… Read More »

EM_EXPRESS_BASIC, How and Why

by Ed Chen
May 16, 2023May 22, 2023

Enterprise Manager (EM) Enterprise Manager (EM) is a graphical management tool that provides centralized capabilities of managing Oracle databases and servers. In recent releases, EM… Read More »

Oracle Enterprise Manager Database Express 19c - A Dialog from XDB ask for Credential

How to Resolve EM Express Pop-Up Dialog

by Ed Chen
November 11, 2020December 9, 2022
2 Comments

Pop-Up Dialog for Username and Password You may surprisingly see a credential dialog from XDB like the feature image when you tried to login Oracle… Read More »

Oracle Enterprise Manager Database Express 19c - This Page Can't be Displayed

How to Resolve Oracle 19c EM Express Not Working

by Ed Chen
November 7, 2020July 3, 2022

Saw an error in Internet Explorer 11 when I tried to connect to Oracle Enterprise Manager Database Express (EM Express) of Oracle 19c. Which means… Read More »

Where is xdb_wallet

by Ed Chen
November 5, 2020January 31, 2023

There're two possible locations for xdb_wallet. Single-instance Databases The root entry of xdb_wallet is $ORACLE_BASE for single-instance databases. $ORACLE_BASE/admin/$ORACLE_SID/xdb_wallet/ RAC Databases The root entry of… Read More »

EM Express 19c with or without Flash

by Ed Chen
July 25, 2020December 18, 2022
2 Comments

Flash-based EM Express I assumed that you have enabled Enterprise Manager Express (EM Express) before reading this post. EM Express 12c For those who using… Read More »

How to Start EM Express for PDB

by Ed Chen
July 22, 2020February 23, 2023

EM Express for PDB I assumed that you have enabled Enterprise Manager Express (EM Express) before reading this post. During database creation, DBCA enables Enterprise… Read More »

How Oracle Disable EM Express

by Ed Chen
February 18, 2018March 28, 2023
2 Comments

One day, you found port 5500 is on the list of vulnerability scanning this season, which is used by listener to listen incoming connections to… Read More »

How Oracle Enable EM Express

by Ed Chen
February 18, 2018May 24, 2023

Enable EM Express After installing 12c database, you may want to enable dbconsole just like 10g and 11g, but in fact, there's no emctl command… Read More »

How to Resolve OC4J Configuration issue

by Ed Chen
February 3, 2018February 13, 2023

An error occurred when I tried to start up dbconsole of Oracle database 11g. oracle@solaris11vm:~$ emctl start dbconsole OC4J Configuration issue. /u01/app/oracle/product/11.2.0/dbhome_1/oc4j/j2ee/OC4J_DBConsole_localhost_ORCL not found. Looked… Read More »

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