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SQL Script to Mirror a user in Oracle Database

SQL Script to Mirror a user in Oracle Database


Save the following as mirror_user.sql.


SET SERVEROUTPUT ON;
SET VERIFY OFF;

-- Prompt for source user
PROMPT Enter the source user name (to mirror):
DEFINE SOURCE_USER = &1

-- Prompt for target user
PROMPT Enter the target user name (new user):
DEFINE TARGET_USER = &2

-- Prompt for target user password
PROMPT Enter the password for the new user:
DEFINE NEW_PASSWORD = &3

DECLARE
    -- Variables for SQL commands and user details
    v_sql VARCHAR2(4000);
    v_default_ts VARCHAR2(100);
    v_temp_ts VARCHAR2(100);
BEGIN
    -- Fetch the default and temporary tablespaces for the source user
    SELECT default_tablespace, temporary_tablespace
    INTO v_default_ts, v_temp_ts
    FROM dba_users
    WHERE username = UPPER('&SOURCE_USER');

    -- Create the target user
    v_sql := 'CREATE USER ' || UPPER('&TARGET_USER') || 
             ' IDENTIFIED BY "' || '&NEW_PASSWORD' || '"' || 
             ' DEFAULT TABLESPACE ' || v_default_ts || 
             ' TEMPORARY TABLESPACE ' || v_temp_ts;
    EXECUTE IMMEDIATE v_sql;
    DBMS_OUTPUT.PUT_LINE('User ' || UPPER('&TARGET_USER') || ' created.');

    -- Grant roles
    FOR r IN (SELECT 'GRANT ' || granted_role || ' TO ' || UPPER('&TARGET_USER') || 
                     CASE WHEN admin_option = 'YES' THEN ' WITH ADMIN OPTION;' ELSE ';' END AS sql_command
              FROM dba_role_privs WHERE grantee = UPPER('&SOURCE_USER')) LOOP
        EXECUTE IMMEDIATE r.sql_command;
    END LOOP;
    DBMS_OUTPUT.PUT_LINE('Roles granted to ' || UPPER('&TARGET_USER') || '.');

    -- Grant system privileges
    FOR s IN (SELECT 'GRANT ' || privilege || ' TO ' || UPPER('&TARGET_USER') || 
                     CASE WHEN admin_option = 'YES' THEN ' WITH ADMIN OPTION;' ELSE ';' END AS sql_command
              FROM dba_sys_privs WHERE grantee = UPPER('&SOURCE_USER')) LOOP
        EXECUTE IMMEDIATE s.sql_command;
    END LOOP;
    DBMS_OUTPUT.PUT_LINE('System privileges granted to ' || UPPER('&TARGET_USER') || '.');

    -- Grant object privileges
    FOR o IN (SELECT 'GRANT ' || privilege || ' ON ' || owner || '.' || table_name || 
                     ' TO ' || UPPER('&TARGET_USER') || 
                     CASE WHEN grantable = 'YES' THEN ' WITH GRANT OPTION;' ELSE ';' END AS sql_command
              FROM dba_tab_privs WHERE grantee = UPPER('&SOURCE_USER')) LOOP
        EXECUTE IMMEDIATE o.sql_command;
    END LOOP;
    DBMS_OUTPUT.PUT_LINE('Object privileges granted to ' || UPPER('&TARGET_USER') || '.');
    
    DBMS_OUTPUT.PUT_LINE('Mirroring of ' || UPPER('&SOURCE_USER') || ' to ' || UPPER('&TARGET_USER') || ' completed successfully.');
END;
/
EXIT;


Execution Steps

Execute it in SQL*Plus and provide the required inputs:

bash

sqlplus / as sysdba @mirror_user.sql
SQL*Plus will prompt for:

Source user name: The user you want to mirror.
Target user name: The new user name.
New password: The password for the new user.


Example 


Enter the source user name (to mirror): SOURCE_USER
Enter the target user name (new user): TARGET_USER
Enter the password for the new user: NewPassword123









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