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Oracle Tutorials - Reset Lost SYSTEM Password

By: FYIcenter.com

(Continued from previous topic...)

What To Do If DBA Lost the SYSTEM Password?

If the DBA lost the password of the SYSTEM user account, he/she can go to the Oracle server machine, and run SQL*Plus on server locally with the operating system authentication method to gain access to the database. The tutorial exercise below shows you how:

(Terminal server to the Oracle server machine)
(Start SQL*Plus)
SQL>CONNECT / AS SYSDBA
Connected.

SQL> ALTER USER SYSTEM IDENTIFIED BY ssap_iyf;
User altered.

Notice that the (/) in the CONNECT command tells SQL*Plus to use the current user on local operating system as the connection authentication method.

(Continued on next topic...)

  1. What Is SQL*Plus?
  2. How To Start the Command-Line SQL*Plus?
  3. How To Get Help at the SQL Prompt?
  4. What Information Is Needed to Connect SQL*Plus an Oracle Server?
  5. What Is a Connect Identifier?
  6. How To Connect a SQL*Plus Session to an Oracle Server?
  7. What Happens If You Use a Wrong Connect Identifier?
  8. What To Do If DBA Lost the SYSTEM Password?
  9. What Types of Commands Can Be Executed in SQL*Plus?
  10. How To Run SQL Commands in SQL*Plus?
  11. How To Run PL/SQL Statements in SQL*Plus?
  12. How To Change SQL*Plus System Settings?
  13. How To Look at the Current SQL*Plus System Settings?
  14. What Are SQL*Plus Environment Variables?
  15. How To Generate Query Output in HTML Format?
  16. What Is Output Spooling in SQL*Plus?
  17. How To Save Query Output to a Local File?
  18. What Is Input Buffer in SQL*Plus?
  19. How To Revise and Re-Run the Last SQL Command?
  20. How Run SQL*Plus Commands That Are Stored in a Local File?
  21. How To Use SQL*Plus Built-in Timers?
  22. What Is Oracle Server Autotrace?
  23. How To Set Up Autotrace for a User Account?
  24. How To Get Execution Path Reports on Query Statements?
  25. How To Get Execution Statistics Reports on Query Statements?

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