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what is sys_* column in all_tab_columns

edited Dec 6, 2017 4:06AM in Database Administration (MOSC) 3 commentsAnswered

I have few sys_ columns for one of our table in all_tab_cols table.

However, those columns are not in the real table at all.

Can anybody let me know where those columns are from?

My database version 11.2.0.4

columns in all_tab_cols

Those columns are not in real table at all.

Any help is appreciated.

thanks a lot!

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