SQL Error: ORA-02000: missing ALWAYS keyword when create identity column based table

Question

I try to create an auto incremented column on a table and as I see in this post there are 2 ways, the second implementation with the Identity column is a more elegant soluti

Answer 1

Perhaps the Oracle database (server) you are trying to connect to is 12c, however the client (installed locally) you are using doesn't support the feature. Please check your Oracle client version, it could be 11g or lower which doesn't support it. You need to download a higher client version.

Works perfectly on version 12.1.0.1.

SQL> select banner from v$version where rownum = 1;

BANNER
--------------------------------------------------------------------------------
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production

SQL> CREATE TABLE AUTH_PERMISSION
  2  (
  3      ID NUMBER(19,0) GENERATED BY DEFAULT ON NULL AS IDENTITY,
  4      -- ID NUMBER(19,0) PRIMARY KEY NOT NULL,
  5      NAME VARCHAR2(50) UNIQUE NOT NULL,
  6      ACTION_ID NUMBER(19,0) NOT NULL,
  7      RESOURCE_ID NUMBER(19,0) NOT NULL,
  8      ENVIRONMENT_ID NUMBER(19,0) NOT NULL
  9  );

Table created.