Oracle DBMS_SQLHASH
Version 19.3

General Information
Library Note Morgan's Library Page Header
Which has the higher priority in your organization: Deploying a new database or securing the ones you already have? Looking for a website, and resources, dedicated solely to securing Oracle databases? Check out DBSecWorx.
Purpose Apply a supported cryptographic hash function to a SQL statement. This function can not be used to hash a string that is not a valid SQL statement.
AUTHID CURRENT_USER
Constants (uses DBMS_CRYPTO constants also listed here)
Name Data Type Value
HASH_MD4 (128 bit hash) BINARY_INTEGER 1
HASH_MD5 (128 bit hash) BINARY_INTEGER 2
HASH_SH1 (160 bit hash) BINARY_INTEGER 3
HASH_SH256 BINARY_INTEGER 4
HASH_SH384 BINARY_INTEGER 5
HASH_SH512 BINARY_INTEGER 6
Dependencies
DBMS_CRYPTO DBMS_SQL UTL_RAW
DBMS_LOB    
Documented No
First Available 12.1.0
Security Model Owned by SYS with no privileges granted
Source {ORACLE_HOME}/rdbms/admin/dbmsobtk.sql
 
GETHASH
Provides an interface to generate the hash value of the result set returned by a SQL query dbms_sqlhash.gethash(
sqltext     IN VARCHAR2,                 -- input sql statement
digest_type IN BINARY_INTEGER,           -- digest algorithm type
chunk_size  IN NUMBER DEFAULT 134217728) -- 128M
RETURN RAW;
set serveroutput on

DECLARE
 sqlstr  VARCHAR2(4000):='SELECT object_name FROM all_objects WHERE rownum = 1';
 digtype PLS_INTEGER := 3;
 RetVal  RAW(2000);
BEGIN
  SELECT dbms_sqlhash.gethash(sqlstr, dbms_crypto.hash_sh1)
  INTO RetVal
  FROM dual;

  dbms_output.put_line(RetVal);
END;
/

Related Topics
Built-in Functions
Built-in Packages
DBMS_CRYPTO
ORA_HASH
Security
What's New In 18c
What's New In 19c

Morgan's Library Page Footer
This site is maintained by Dan Morgan. Last Updated: This site is protected by copyright and trademark laws under U.S. and International law. © 1998-2019 Daniel A. Morgan All Rights Reserved
  DBSecWorx