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All About the Initialization Parameter MAX_STRING_SIZE and Related Issues (Doc ID 2673210.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


This document is included in the DB:Parameters Automation and hence is required to be customer visible. Please contact the DB:Admin Automation lead before changing the document status.

This document is a one-stop solution for all queries related to MAX_STRING_SIZE initialization parameter. The details such as the impact of the parameter, how to set it and related issues are all discussed here.

Questions and Answers

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In this Document
Questions and Answers
 1. MAX_STRING_SIZE Parameter - Explanation
 2. After changing parameter MAX_STRING_SIZE=EXTENDED can I rollback it to STANDARD?
 3. How to set MAX_STRING_SIZE=EXTENDED in non CDB single instance database?
 4. How to set MAX_STRING_SIZE=EXTENDED in non CDB RAC database?
 5. How to set MAX_STRING_SIZE=EXTENDED in a container database?
 6. ORA-30556 and/or ORA-54031 reported while executing utl32k.sql script
 7. ORA-14415 reported while executing utl32k.sql script
 8. ORA-02019 reported while executing utl32k.sql script
 9. ORA-30556 or ORA-01404 or ORA-01450 reported while modifying the table column(s) length to greater than 4000 characters
 10. Wrong results using max_string_size=extended and indexes
 11. ORA-01467 In Oracle 12c when max_string_size is Extended Data Types used
 12. RMAN Recover Table Command Fails When Parameter Max_string_size=EXTENDED

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