ORA-00845: MEMORY_TARGET not supported on this system

Problem:
While creating a startup database using dbca the database creation GUI gives error message in a pop up window,
ORA-00845: MEMORY_TARGET not supported on this system
from where you can ignore the error message.
The similar scenario also occur whenever you try to start your database then startup shows error message like below.

SQL> STARTUP
ORA-00845: MEMORY_TARGET not supported on this system Continue reading

Unable to boot due to GNOME Power Manager error

Problem:

Upon bootup of CentOS 6.5, 64 bits, I got the following message in the lower right hand corner of the GUI screen.

“The configuration defaults for GNOME Power Manager have not been installed correctly. Please contact your computer administrator.”

Diagnose:

If you are getting the following error while logging into Linux, its most likely due to low disk space in root drive, try to free up some spaces in root. Continue reading

ORA-12514 TNS:listener does not currently know of service requested in connect descriptor

Problem:

We have an application running locally which two days worked fine and now we get the: TNS:listener does not currently know of service requested in connect descriptor error.

I’ve tested the connection using TNSPing which resolved correctly and Tried SQLPlus to try connecting, which failed with the same error. (i.e. Sqlplus username/passowrd@addressname[or host name] The TNS Listener on the server is running. Oracle itself on the server is running. Continue reading

How to convert image or scan file to word or text

There are lot of software to convert image or scanned file to word or text format, some of them not convert image file as what we want, as we know when we try to convert image file to text its create some problems like, font change, formatting and missing text, some software convert image properly but they unable to read the language of image files and got spell mistake and missed character. Here I would like to mention 2 way of converting image file to word or text. The first one is not required any software and second one is a software to convert image. Continue reading