Question

I know there’s a function to obtain the hash value from a varchar in Oracle, but when I run the query to see the returned value it sends the following message.

ORA-00904: : identificador no válido
00904. 00000 -  "%s: invalid identifier"
*Cause:    
*Action:
Error en la línea: 70, columna: 7

What I’m doing is the following:

select DBMS_CRYPTO.hash(utl_raw.cast_to_raw('Foo'), 3) FROM dual;

It should return the SHA-1 of the string.

Answer 1

That works for me

SQL> select DBMS_CRYPTO.hash(utl_raw.cast_to_raw('Foo'), 3) FROM dual;

DBMS_CRYPTO.HASH(UTL_RAW.CAST_TO_RAW('FOO'),3)
--------------------------------------------------------------------------------
201A6B3053CC1422D2C3670B62616221D2290929

Are you sure that the user that is running this has been granted EXECUTE access on both the UTL_RAW and the DBMS_CRYPTO packages? If line 70 of your code is this SELECT statement, I’d wager that column 7 is where the DBMS_CRYPTO call starts and that you don’t have access to the DBMS_CRYPTO package.