CODEWITHSUNDEEP
javamysqlsearch
user1410081
user1410081

Reputation:

mySql-java simple search console application

I'm trying to do a search program: front end - java and back end - mysql.

I've tried a little bit, here's the code:

public static void searchRecord() throws SQLException{

    Scanner in = new Scanner(System.in);
    int empnum;

    System.out.print("Enter employee number: ");
    empnum = in.nextInt();

    String search = "SELECT fname FROM employees WHERE emp_num='"+ empnum + "'";
        resultSet = statement.executeQuery(search);

    String empnum_rs = null;    

    while(resultSet.next()){
        empnum_rs = resultSet.getString(empnum);



    }

     System.out.print(empnum_rs);   
}

The problem I got here is that when I would type the emp_num eclipse throws these lines:

Exception in thread "main" java.sql.SQLException: Column Index out of range, 2 > 1. 
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:988)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:974)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:919)
    at com.mysql.jdbc.ResultSetImpl.checkColumnBounds(ResultSetImpl.java:830)
    at com.mysql.jdbc.ResultSetImpl.getStringInternal(ResultSetImpl.java:5773)
    at com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5692)
    at Test.searchRecord(Test.java:55)
    at Test.main(Test.java:37)

Upvotes: 0

Views: 687

Answers (1)

Ravinder Reddy
Ravinder Reddy

Reputation: 23992

The getXXX... functions take column numbers starting from 1 to n where n is the max number of columns selected in the query. Your query has only one column in selection. And empnum might not be equal to 1 and hence an error is thrown.

Change: 

empnum_rs = resultSet.getString(empnum);

to: 

empnum_rs = resultSet.getString( 1 );

Upvotes: 1

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