Im getting an error message while inserting values from the form. Error is Column count doesn't match value count at raw 1 . My 5th string value must be stored as date data type in sql.
String s1=this.txtUsername.getText();
String s2=this.txtPassword.getText();
String s3=this.txtName.getText();
String s4=this.txtAddress.getText();
String s5=this.txtContractEndDetails.getText();
connection getcon = new connection();
Connection conn;
try{
conn=getcon.creatConnection();
Statement stmt=conn.createStatement();
stmt.executeUpdate("insert into TravelGuide(username,password,name,address,contract_end_date)values ('"+s1+"','"+s2+"','"+s3+"','"+s4+"'+'"+s5+"')");
}
catch(Exception ex){
JOptionPane.showMessageDialog(PanelTG, ex.getMessage(),"Error Occured",2);
}
Here's my relevant table for SQL query.
create table TravelGuide(
username char(20),
password char(20),
name varchar(100),
address varchar(150),
contract_end_date date,
constraint TravelGuide_PK primary key(username)
);
edited
Im confused about
preparedStatement("insert into TravelGuide (username,password,name,address,contract_end_date) values (?, ?, ?, ?, ?)");
Could u explain this furthermore..
Is this right? The codes which are inside ** marks are giving errors illegal start of expression and cannot find symbol.. Please help me..
try {
conn=getcon.creatConnection();
**String sql="insert into TravelGuide("+"username,"+"password,,"+,"name,"+"address,"+"contract_end_date)"+"values(?,?,?,?,?)";**
PreparedStatement stmt = conn.**preparedStatement**(sql);
java.sql.Date dtValue = java.sql.Date.valueOf(s5);
stmt.setString(1, s1);
stmt.setString(2, s2);
stmt.setString(3, s3);
stmt.setString(4, s4);
stmt.setDate(5, dtValue);
stmt.executeUpdate();
}
Inside the try
, do this instead:
conn = getconn.creatConnection();
PreparedStatement stmt = conn.prepareStatement("insert into TravelGuide (username,password,name,address,contract_end_date) values (?, ?, ?, ?, ?)");
java.sql.Date date = someFunctionToConvertYourDateStringToADate(s5);
stmt.setString(1, s1);
stmt.setString(2, s2);
stmt.setString(3, s3);
stmt.setString(4, s4);
stmt.setDate(5, date);
stmt.executeUpdate();
[and so on]
That way you are protected from SQL injection attacks and you don't have to worry about how to massage your string into a format a specific database requires for a date
column. The JDBC driver will handle that for you, given a java.sql.Date
object.
stmt.executeUpdate("insert into TravelGuide(username,password,name,address,contract_end_date)values ('"+s1+"','"+s2+"','"+s3+"','"+s4+"'**+**'"+s5+"')");
why +,i think i should be,
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