ORA-22857: cannot modify columns of object tables - Oracle Database 12c Error Messages

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Published on March 15, 2023 8:19:06 PM ● Video Link: https://www.youtube.com/watch?v=1qBXDhmV0nI

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In this video we are going to see how to fix below Oracle Database 12c Error Message.

ORA-22857: cannot modify columns of object tables.
Cause: An attempt was made to alter the object table by modifing existing columns.
An object table cannot be altered to modify existing columns since it is based on an
object type. The table definition must be in sync with the corresponding type.
Action: Create a new type with the desired attribute types and use it to create an
object table. The new object table will have the desired columns.

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