Oracle error codes

system tablespace can not be made read only

This is an Oracle Database Server Message. This can be generated by the Oracle Database when running any Oracle program.

What is the cause of ORA-01643 from Oracle 10g ?

Attempting to set the system tablespace to read only. The system tablespace must remain read write for database operation.

How to fix ORA-01643 from Oracle 10g ?

Leave system tablespace read write.

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How to deepen your knowledge about Oracle?

You can train yourself with many books and get an advantage over your competitors by developing a set of skills highly sought throughout the world. Niels Bohr saw an expert as "a person who has found out by his own painful experience all the mistakes that one can make in a very narrow field". So why not you? Be an expert!
To that aim, the first reference book I would suggest is "Oracle Database 11g The Complete Reference (Oracle Press)Oracle Database 11g The Complete Reference" by Kevin Loney. This internationally recognized Oracle expert was named Consultant of the Year by ORACLE Magazine in 2002. Also be aware that the 12c Oracle version is available on here : Oracle Database 12c The Complete Reference (Oracle Press).
In addition to that, let me suggest "OCP Oracle Certified Professional on Oracle 12c Certification Kit" as further reading in order to improve your skills and pass your first level certification.


Oracle Database 11g The Complete Reference (Oracle Press)Oracle Database 11g The Complete Reference

Oracle Database 11g The Complete ReferenceOracle Database 11g The Complete Reference

The Definitive Guide to Oracle Database 11g.
Get full details on the powerful features of Oracle Database 11g from this thoroughly updated Oracle Press guide. Oracle Database 11g: The Complete Reference explains how to use all the new features and tools, execute powerful SQL queries, construct PL/SQL and SQL*Plus statements, and work with large objects and object-relational databases. Learn how to implement the latest security measures, tune database performance, and deploy grid computing techniques. An invaluable cross-referenced appendix containing Oracle commands, keywords, features, and functions is also included.


OCP Oracle Certified Professional on Oracle 12c Certification Kit

Meet your certification guide on the journey to Oracle DBA
The Oracle DBA Certification track now consists of three levels – Associate (OCA), Professional (OCP), and Master (OCM). This valuable kit helps you attain success at each level, providing clarification of the complex material along with plenty of practice that covers all exam objectives.
OCP Oracle Certified Professional on Oracle 12c Certification Kit is the ideal tool for preparing for the OCA and OCP exams. With two comprehensive study guides in one package, this kit serves as a helpful companion throughout your journey to Oracle DBA certification. The OCA study guide is designed for those with some Oracle experience and a background in operational management and maintenance, covering one hundred percent of the material on exams 1Z0-061 and 1Z0-062. Once you're OCA certified, the OCP guide prepares you for exam 1Z0-063 by drawing on your experience with backup, recovery, and cloud computing to master database architecture, RMAN, multitenant architecture, and more. Along the way, you'll have access to robust study tools including review questions, bonus practice exam questions, electronic flashcards, and an appendix of additional lab exercises that give you hands-on experience in preparation for exam day.

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Contacting Oracle support services ?

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Linked Oracle error codes

  • ORA-01635 rollback segment # string specified not available
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  • ORA-01637 rollback segment ' string ' is being used by another instance (# string )
  • ORA-01638 parameter string does not allow ORACLE version string to mount cluster database
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  • ORA-01640 cannot make tablespace read only with active transactions
  • ORA-01641 tablespace ' string ' is not online - cannot add data file
  • ORA-01642 begin backup not needed for read only tablespace ' string '
  • ORA-01644 tablespace ' string ' is already read only
  • ORA-01645 previous attempt to make read write is half complete
  • ORA-01646 tablespace ' string ' is not read only - cannot make read write
  • ORA-01647 tablespace ' string ' is read only, cannot allocate space in it
  • ORA-01648 log string is the current log of disabled instance string (thread string )
  • ORA-01649 operation not allowed with a backup controlfile
  • ORA-01650 unable to extend rollback segment string by string in tablespace string
  • ORA-01651 unable to extend save undo segment by string for tablespace string