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Editorial Team
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Asked: 2026-06-11T10:54:30+00:00

I’m trying to alter a column on a table with this syntax: ALTER TABLE

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I’m trying to alter a column on a table with this syntax:

ALTER TABLE MY_SCHEMA.latest_workspace MODIFY (short_name VARCHAR2(10) NOT NULL);

This is the error I’m getting:

Error starting at line 1 in command: ALTER TABLE
MY_SCHEMA.latest_workspace MODIFY (short_name VARCHAR2(10) NOT NULL)
Error report: SQL Error: ORA-00942: table or view does not exist
00942. 00000 – “table or view does not exist”
*Cause:
*Action:

However, I can physically see the table just fine and query it with: 

SELECT short_name FROM MY_SCHEMA.latest_workspace;

Also, all the correct permissions are granted to the user that I am logged in with. Is there something else I’m forgetting that can cause this for an ALTER?

Thanks!

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1 Answer

  1. Editorial Team

    It would appear MY_SCHEMA.latest_workspace is not a table. It might be a view, or perhaps it’s a synonym to an object in some other schema. Try this query to find out:

    select object_type
from   user_objects
where object_name = 'LATEST_WORKSPACE';

    The action you need to take subsequently depends on the result.

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