Check your Listener.
Normally this error appears when Listener is not up for the database. When you connected to the DB with SQL*Plus, did you give any connect TNS alias? eg.
SQL>connect system/manager@"db-tns-alias"
If not, then you are connecting using BEQ local protocol, not the...
I have an excel file which i want to transfer the data to oracle. How do i get th'gh this. Do i need to convert the excel file to a comma separated file and use sqlload. If any one can help me by writing a piece of code that will be great.
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