ORA-01406 or ORA-06502 in PLSQL when querying data in (AL32)UTF8 db from remote non-UTF8 db using cursor
(Doc ID 269381.1)
Last updated on FEBRUARY 19, 2025
Applies to:
Oracle Database - Enterprise Edition - Version 9.0.1.0 and laterOracle Database - Standard Edition - Version 9.0.1.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Purpose
Document the reason and solution when encountering ORA-01406 or ORA-06502 in PLSQL querying data in (AL32)UTF8 db from remote non-UTF8 db (WE8ISO8859P1, WE8MSWIN1252 etc) using a cursor on some rows containing "extended characters".
Wich means characters other then these:
Scope
Anyone interfacing between a non-(AL32)UTF8 and an (AL32)UTF8 database.
Details
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In this Document
| Purpose |
| Scope |
| Details |
| Needed conditions: |
| Explanation: |
| Solution: |
| Example code to illustrate the issue: |
| References |