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- 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
- SQL Error: ORA-02291: integrity constraint - Stack Overflow
ORA-02291: integrity constraint (string string) violated - parent key not found Cause: A foreign key value has no matching primary key value Action: Delete the foreign key or add a matching primary key This means that there is no matching key in your referenced table EDIT #1
- sql - ORA-12560: TNS:protocol adaptor error - Stack Overflow
After searching alot got a simple way to solve it Just follow the steps Check status of your listener open command prompt and type lsnrctl status
- Oracle client ORA-12541: TNS:no listener - Stack Overflow
ORA-12541: TNS:no listener Cause: The connection request could not be completed because the listener is not running Action: Ensure that the supplied destination address matches one of the addresses used by the listener - compare the TNSNAMES ORA entry with the appropriate LISTENER ORA file (or TNSNAV ORA if the connection is to go by way of an
- SQL Error: ORA-00942 table or view does not exist
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 To avoid the problem, you must grant select privilege on the sequence:
- oracle10g - ORA-01555: snapshot too old: rollback segment number with . . .
You get "ORA-01555: snapshot too old: rollback segment number with name" usually when the SQL runs too long This is because rollback records needed by a reader for consistent read are overwritten by other writers
- ORA-29273: HTTP request failed intermittent error using the utl_http . . .
I'm using the utl_http package to make HTTP GET requests to an IIS site on the same server (local) as Oracle Sometimes it works and I get the response, but more often than not it hangs for about 1
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