where statement represents a PL/SQL statement.
Executes a single PL/SQL statement. The EXECUTE command is often useful when you want to execute a PL/SQL statement that references a stored procedure. For more information on PL/SQL, see your Oracle Database PL/SQL User's Guide and Reference.
If your EXECUTE command cannot fit on one line because of the PL/SQL statement, use the SQL*Plus continuation character (a hyphen).
The length of the command and the PL/SQL statement cannot exceed the length defined by SET LINESIZE.
You can suppress printing of the message "PL/SQL procedure successfully completed" with SET FEEDBACK OFF.
If the variable :n has been defined with:
VARIABLE n NUMBER
The following EXECUTE command assigns a value to the bind variable n:
EXECUTE :n := 1
PL/SQL procedure successfully completed.
For information on how to create a bind variable, see the VARIABLE command.