sql - ORA-00904: invalid identifier - Stack Overflow I was doing an Oracle database link exercise mixed with join queries and this was exactly my problem I was getting ORA-00904: "A" "NOMBRE": invalid identifier errors and such, and the problem was solved adding double quotes in the column names where the errors popped –
Why do I have ORA-00904 even when the column is present? 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 Normally, Oracle tables and columns are not case sensitive and cannot contain punctuation marks and spaces
ORA-03150: end-of-file on communication channel for database link ORA-03150: end-of-file on communication channel for database link ORA-02063: preceding line from DBPREMOTE ORA-06512: at "DBLOCAL JOB_NAME", line 710 ORA-06512: at line 1 Line 710 is the first line of a procedure: execute immediate 'set constraints all deferred';
plsql - Oracle error ORA-28759: failure to open file when requesting . . . 4 In the Select User or Group field, type ora_dba Click the Check names button to verify that the ora_dba group exists 5 Click OK and the Permission Entry dialog box displays 6 Select the Allow check box next to Full Control and click OK 7 In the Advanced Security dialog box click Apply 8 Click OK to exit the dialogs
oracle database - ORA-00054: resource busy and acquire with NOWAIT . . . 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 –