What is oracle ROWID?

Oracle ROWID is an oracle table’s pseudo column. It enables us to locate the address of a row. This column is not physically stored on the table but will display when you query it.

Example:

SQL> conn mereba/mereba@orcl
Connected.
SQL> insert into mereba values(1,'merebaTech');
 1 row created.
 SQL> select rowid,name from mereba;
 ROWID              NAME
------------------ ------------------------------
AAASHVAAHAAAACFAAA merebaTech