oracle - How to generate hashkey using multiple columns in oracle? Could you please give me an example?

Question

How to generate hash key using multiple columns in oracle? Could you please give me an example?

Answer 1

根据您想要哈希的目的，您可以使用 ORA_HASH：

SELECT ORA_HASH(name || '~' || surname || '~' || position) FROM emp;

http://docs.oracle.com/cd/B12037_01/server.101/b10759/functions097.htm

或者您可以使用 DBMS_CRYPTO.hash：

http://docs.oracle.com/cd/E11882_01/appdev.112/e40758/d_crypto.htm#i1002022