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ORA-12986 ORA-00955 error after table set column as unused !

orasiyaMar 13 2021 — edited Mar 15 2021

Dear firends,
I received the following erros, when accessing the table after table column drop !

ORA-12986: columns in partially dropped state. Submit the it ALTER TABLE DROP COLUMNS CONTINUE
ORA-00955: name is already used by an existing object
our database version is 18c (Exadata 7)
none of the following commands soloved our problems,
ALTER TABLE myTable DROP COLUMNS CONTINUE
ORA-12986: columns in partially dropped state. Submit ALTER TABLE DROP COLUMNS CONTINUE

ALTER TABLE myTable DROP COLUMNS continue CHECKPOINT 250;
ORA-00955: name is already used by an existing object
any idea?

regards

This post has been answered by EdStevens on Mar 13 2021
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Added on Mar 13 2021
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