Update datetime and a string in Memo field using Java and UCanAccess

Question

I want to update datetime and a string in Memo field using UCanAccess. For example - 5/27/2015 System : some string, this is all I have to update in memo field.

What I have tried - I am converting date to a string using following code:

DateFormat df = new SimpleDateFormat("yyyyMMdd");
Date today = Calendar.getInstance().getTime();              
String reportDate = df.format(today);

and then using update query of ucanaccess like this:

st.executeUpdate(" update tblCaseInventory set fldContactNotes = " + reportDate   + "' System : CAR Report '" +  "  where fldCaseNumber = " +  rs1.getInt("fldCaseNumber"));

but I am getting an error:

Unexpected token : System.

How to achieve this?

Answer 1

You should use a PreparedStatement to run a parameterized query, something like this:

String sql = 
        "UPDATE tblCaseInventory " +
        "SET fldContactNotes=? " +
        "WHERE fldCaseNumber=? ";
try (PreparedStatement ps = conn.prepareStatement(sql)) {
    DateFormat df = new SimpleDateFormat("yyyyMMdd");                                                   
    java.util.Date today = Calendar.getInstance().getTime();              
    String reportDate = df.format(today);
    ps.setString(1, reportDate + " System : CAR Report");
    ps.setInt(2, rs1.getInt("fldCaseNumber"));
    ps.executeUpdate();
}