Error
Error Code: ORA-29895

Oracle ORA-29895: Duplicate Base Type

📦 Oracle Database
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Description

The ORA-29895 error occurs in Oracle Database when trying to add a base data type to an indextype using ARRAY DML that is already supported. This typically happens during indextype creation or modification when duplicate data types are inadvertently included.
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Error Message

ORA-29895: A duplicate base data type was specified.
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Known Causes

3 known causes
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Duplicate Type Specification
The same base data type is specified multiple times within the `CREATE INDEXTYPE` or `ALTER INDEXTYPE` statement.
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Typo in Data Type Name
A typo in the data type name might lead the system to interpret it as a duplicate when a similar, correctly spelled type already exists.
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Incorrect Indextype Definition
The indextype definition might contain redundant or overlapping data type specifications, causing conflicts during creation or modification.
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service

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