Rename oracle column name to all caps. Table or view does not exist even though user2 does have insert and select privileges on user1.customer table and is correctly prefixing the table with the schema owner name. Numeric or value error%s fixed by changing how i declared the variable a to: Resource busy and acquire with nowait specified or timeout expired asked 14 years, 10 months ago modified 1 year, 5 months ago viewed 1.5m times 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. 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 #. I was trying to connect to the database here in my laptop using oracle toad but i kept on having this error Tns:connect timeout occurred what are the possible reasons why i kept on ha.
Tns:could not resolve the connect identifier specified Invalid number 3.how i solved this issue by adding colon to the parameter values as belowthis is strange i fixed it by addin colon as below.
OPEN
