Why do I have ORA-00904 even when the column is present?...

Access parent alias in subquery within a with clause using connect by in Oracle...

ORA-00904: invalid identifier...

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Invalid Identifier ORA-00904 Error on Outer Join...

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ora-00904 invalid identifier...

beginner sql missing keyword and invalid identifier...

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SQL Error: ORA-00904: : invalid identifier in line 4...

ORA-00904: "PSTATUSTYPE": invalid identifier 00904. 00000 - "%s: invalid identifier&q...

Dynamic SQL syntax using EXECUTE IMMEDIATE...

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Unable to create a table with foreign key. Error: ORA-00904: : invalid identifier...