The column name entered is either missing or invalid Enter a valid column name A valid column name must begin with a letter, be less than or equal to 30 characters, and consist of only alphanumeric characters and the special characters $, _, and #. Tns protocol adapter error)issue cause of database connection issue like database, user name and password Once you got the issue Initially you have to check connection details, after check the oracle service and further more.
A foreign key value has no matching primary key value Delete the foreign key or add a matching primary key This means that there is no matching key in your referenced table Character string buffer too small asked 12 years, 2 months ago modified 5 years, 4 months ago viewed 743k times Resource busy and acquire with nowait specified or timeout expired asked 14 years, 9 months ago modified 1 year, 4 months ago viewed 1.5m times No data found exception for the following query
Select trim (name) into fullname from ( select n.name from directory. Tns:could not resolve the connect identifier specified We have an application running locally where we're experiencing the following error Tns:listener does not currently know of service requested in connect descriptor i've tested the
WATCH
