Command is

EXEC SQL CONNECT

         [<user_name> IDENTIFIED BY <password> | <uidpwd>]

         AT <session_name>

         USING <database_server-database_name>

         [<connect_option>...] [KEY <key>];

<uidpwd> ::= <user_name>/<password>

<connect_option> ::= [ISOLATION LEVEL <unsigned_integer>]

                     [TIMEOUT <unsigned_integer>]

·        Choose a name for the database name in <session_name>. The only limit on the possible number of parallel database sessions in the SQL mode ORACLE is the maximum possible number of database sessions of the database instances.

·        The user name <user_name> and password <password> can also be specified as a character string in a host variable (character or UNICODE data types).

·        In <connect_option> you can specify an isolation level and timeout value.

·        You can specify the <key> in a host variable with data type char. You can specify an XUSER user key, DEFAULT or the environment variable SQLOPT. For information on setting the connection options at runtime in these environment variables, see your operating system documentation.

·        The <key>values complete or override the explicitly specified user name, password, and CONNECT options.