sql 查詢三天內有效的數據
阿新 • • 發佈:2017-10-14
iss day miss mas new from cnblogs 存儲 settime
發生發射點發
StringBuffer sb = new StringBuffer(); sb.append("select dmp.* from drug_presc_master where 1=1"); SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss"); Calendar now = Calendar.getInstance(); now.setTime(new Date()); now.add(Calendar.DATE, 1); now.set(Calendar.HOUR_OF_DAY, 0); now.set(Calendar.MINUTE,0); now.set(Calendar.SECOND, 0); Calendar beginDate = Calendar.getInstance(); beginDate.setTime(new Date()); beginDate.add(Calendar.DATE, -displayTime + 1); beginDate.set(Calendar.HOUR_OF_DAY, 0); beginDate.set(Calendar.MINUTE, 0); beginDate.set(Calendar.SECOND, 0); sb.append(" and dpm.PRESC_DATE >= TO_DATE(‘").append(format.format(beginDate.getTime())).append("‘, ‘yyyyMMddHH24MIss‘)"); sb.append(" and dpm.PRESC_DATE < TO_DATE(‘").append(format.format(now.getTime())).append("‘, ‘yyyyMMddHH24MIss‘)");
下面日期執行結果
SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss"); Calendar now = Calendar.getInstance(); now.setTime(new Date()); now.add(Calendar.DATE, 1); now.set(Calendar.HOUR_OF_DAY,0); now.set(Calendar.MINUTE, 0); now.set(Calendar.SECOND, 0); Calendar beginDate = Calendar.getInstance(); beginDate.setTime(new Date()); beginDate.add(Calendar.DATE, -displayTime + 1); beginDate.set(Calendar.HOUR_OF_DAY, 0); beginDate.set(Calendar.MINUTE, 0); beginDate.set(Calendar.SECOND, 0); System.outp.println(now.getTime()); System.outp.println(beginDate.getTime()); System.outp.println(format.format(now.getTime())); System.outp.println(format.format(beginDate.getTime())); ------------------------------------------ 執行結果 now.getTime():Sun Oct 15 00:00:00 CST 2017 beginDate.getTime():Thu Oct 12 00:00:00 CST 2017 format.format(format.format(now.getTime())):20171012000000 format.format(beginDate.getTime()):20171015000000
sb.append(" and dpm.PRESC_DATE >= TO_DATE(‘").append(format.format(beginDate.getTime())).append("‘, ‘yyyyMMddHH24MIss‘)")
dpm.PRESC_DATE:在數據庫中的存儲形式是 2017/8/7 19:11:27
sql 查詢三天內有效的數據