This optional parameter specifies the SQL query that will be
used to log authentication successes if LogSuccess is enabled (LogSuccess
is not enabled by default). There is no default. If SuccessQuery is not
defined (which is the default), no logging of authentication successes
will occur. In the query, special formatting characters are
permitted:
- %0 is replaced with the message severity level.
- %1 is replaced with the quoted reason message (which is usually
empty for successes).
- %2 is replaced with the SQL quoted User-Name.
- %3 is replaced with the SQL quoted decoded plaintext password (if
any).
- %4 is replaced with the SQL quoted original user name from the
incoming request (before any RewriteUsername rules were applied)
- %5 is replaced with tracing identifier.