Question

Consider am assigning the URL in the code below to a string, say

String link = "http://www.topix.com/rss/city/ellensburg-wa";

How should I use the string in the below code instead of the URL itself.

Note: am a beginner in java

 stmt.executeQuery("select url from urls where url='http://www.topix.com/rss/city/ellensburg-wa'");

 stmtR.executeUpdate("insert into urls values(21211,'http://www.topix.com/rss/city/ellensburg-wa','source',1,0)"

Answer 1

If you want to create a nice query use a prepared statement

PreparedStatement insertUrlStatement = con.prepareStatement("INSERT INTO urls VALUES(?, ?, ?, ?)");
//Replace the **first** "?" by an "id" variable content (containing an **int**)
insertUrlStatement.setInt(1, id);
//Replace the **second** "?" by the "url" variable content (containing a **String**)
insertUrlStatement.setString(2, url);
//Two other setXxx();
insertUrlStatement.executeUpdate()