The command-line SQL Plus interface continues in use, mostly for non-interactive scripting or for administrative purposes. The Server Manager Command Line a replacement of SQL*DBA is obsolete and SQL Plus 8i and later allows the user to issue statements like and when connected as SYSDBA. Server Manager 7.1 introduced the command to replace . Oracle 7 doc, 1994 SQL Plus 8i and later allows the use of CONNECT / AS SYSDBA
