BEA Weblogic Question:
Download Questions PDF

How do I bind string values in a PreparedStatement?

Answer:

Suppose you are trying to tget the PreparedStatement class to bind Strings in a statement. The setString() method doesn't seem to work. Here is how you have set up the PreparedStatement:

String pstmt = "select n_name from n_table where n_name LIKE
'?%'";
PreparedStatement ps = conn.prepareStatement(pstmt);
ps.setString(1, "SMIT");
ResultSet rs = ps.executeQuery();

The preceding code does not work because the complete value needs to be specified in a String (without using embedded quotes) and then bound to an unquoted question-mark (?). Here is the corrected code:

String matchvalue = "smit%";
String pstmt = "select n_name from n_table where n_name LIKE ?";
PreparedStatement ps = conn.prepareStatement(pstmt);

ps.setString(1, matchvalue);
ResultSet rs = ps.executeQuery();

Download BEA Weblogic Interview Questions And Answers PDF

Previous QuestionNext Question
How can I avoid ResourceExceptions when sending more requests for database connections from the pool than are currently available?What is error ORA-6502?