Hi All, How can I use a function in double quote? I want to record the IP address of the syslog-ng server. Since there's no available macro that represent the IP of syslog-ng server(only have macros indicate where the message sent to syslog-ng server,like $HOST). So I want to use ip() function and record it to database. The configuration part is: columns( "datetime varchar2(24)", "server_ip varchar2(24)", "host varchar2(32)", ...) values( "${R_YEAR}-${R_MONTH}-${R_DAY} ${R_HOUR}:${R_MIN}:${R_SEC}", "ip()", "$HOST", ...) When I started syslog-ng,it gave error message that said expecting double quotes. How can I use a function in double quotes? Or are there any other ways to get the syslog-ng server IP address and record them? Thanks, Henry