How does discuz customize SQL statements on the portal homepage to read database information?

What should I do if discuz wants to customize SQL to read database information on the portal homepage? & Lt ;? Php $ query & nbsp; DB: query (SELECT & nbsp; * & nbsp; FROM & nbsp ;. DB: table (common_advertisement ).;); while ($ rs & nbsp; DB: fetch ($ que discuz wants to read database information through a custom SQL statement on the portal homepage. what should I do?

 $ Query = DB: query ("SELECT * FROM". DB: table ('Common _ advertisement ').";");
While ($ rs = DB: fetch ($ query )){
$ Code = $ rs ['code'];
}
?>

In this case, do I need to introduce SQL link statements?


------ Solution --------------------
Do not add points;