ora 04021

ORA-00904-invalid identifier errors are frequently caused by case-sensitivity issues. Normally, Oracle tables and columns are not case sensitive and cannot contain punctuation marks and spaces. But if you use double quotes to create a quoted identifier, that identifier must always be referenced with double quotes and with the correct case. For example: create table bad_design ... The result will be "ORA-00942: 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. I Google[d] for this error ORA-12560: TNS:protocol adaptor error but not able to find the actual reason and how to solve this error ? Can anyone tell me a perfect ... This is really useful if you're getting the ORA-00054 from batch jobs, but I suspect most people landing here (including the OP, and me) are doing some development and have left a session open doing inserts on the same table they're trying to drop and recreate. KILL SESSION is the right answer for these people. ORA-06502: PL/SQL: numeric or value error: character string buffer too small ORA-06512: at line 13 06502. 00000 - "PL/SQL: numeric or value error%s" FIXED by changing how I declared the variable "a" to:

The id/pw I was using was correct, but I was getting ORA-01017 Invalid Username/Password on one particular connection only. It turned out that my connection settings in Oracle SQL Developer had the "Use DB Proxy Authentication" turned on in the "Proxy User" tab. We have an application running locally where we're experiencing the following error: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor I've tested the