1  –  statement-name

    Specifies the name of a prepared statement or a statement name
    assigned in a PREPARE statement.

    A single set of dynamic SQL statements (PREPARE, DESCRIBE,
    EXECUTE, dynamic DECLARE CURSOR) can handle any number of
    dynamically executed statements.

    You can supply either a parameter or a compile-time statement
    name to identify the statement to be executed. Specifying a
    parameter lets SQL supply identifiers to programs at run time.
    Use an integer parameter to contain the statement identifier
    returned by SQL or a character string parameter to contain
    the name of the statement that you pass to SQL. If you use
    parameters, statements that refer to the prepared statement
    (DESCRIBE, EXECUTE, DECLARE CURSOR) must also use those
    parameters instead of the explicit statement name.

2  –  statement-id-parameter

    Specifies the name of a prepared statement or a statement name
    assigned in a PREPARE statement.

    A single set of dynamic SQL statements (PREPARE, DESCRIBE,
    EXECUTE, dynamic DECLARE CURSOR) can handle any number of
    dynamically executed statements.

    You can supply either a parameter or a compile-time statement
    name to identify the statement to be executed. Specifying a
    parameter lets SQL supply identifiers to programs at run time.
    Use an integer parameter to contain the statement identifier
    returned by SQL or a character string parameter to contain
    the name of the statement that you pass to SQL. If you use
    parameters, statements that refer to the prepared statement
    (DESCRIBE, EXECUTE, DECLARE CURSOR) must also use those
    parameters instead of the explicit statement name.