如何获取一周的记录

Question

I am using Java 7 and fetching records for a week.For valid_from column I am subtracting -7 from current date below. The format of date in DB is 12-FEB-18 . For valid_to column I am using sysdate. I am not getting correct valid_from date. Can anyone review this what is wrong here.

Format formatter = new SimpleDateFormat("dd-MMM-yy");
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -7);
Date todate1 = cal.getTime();
Date startdate = ((DateFormat)formatter).parse(formatter.format(todate1));
System.out.println(todayWithZeroTime);

String sql_qry = "SELECT a.ACCOUNT_ID from tableName a where a.STATUS_TYPE_KEY='ACTIVE' "
    + "and a.VALID_FROM >"
    + startdate+ " and a.VALID_TO > sysdate";

How can I parse only Date here. Currently I am getting Tue Feb 13 00:00:00 GMT 2018 . I want 13-FEB-18 which I can send as variable in where condition.
Please suggest

Answer 1

You are converting a Date to a String then back to a Date .

Then you are using this Date object in your query, so it's toString() method gets called and yields a String representation which is probably not the one you wanted.

Avoid the last conversion from String to Date and just use

String startdate = formatter.format(todate1);

Note that you also have to escape the date string with quotes :

 String sql_qry = "SELECT a.ACCOUNT_ID from tableName a where "
                 + "a.STATUS_TYPE_KEY='ACTIVE' "
                 + "and a.VALID_FROM > '"
                 + startdate+ "' and a.VALID_TO > sysdate";

Also consider having a look at Java time API and at How to use PreparedStatement