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ASP. NET 2.0 improves the Data Binding operation in the template. It simplifies the Data Binding syntax databinder. eval (container. dataitem, fieldname) in v1.x to eval (fieldname ). The eval method, like databinder. Eval, can accept an optional formatted string parameter. Shortened eval syntax and databinder. the difference between Eval is that Eval will automatically parse fields based on the dataitem attribute of the most recent container object (such as datalistitem), while databinder. eval

Format Date string-->date or data-->stringSimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd");Date date = Sdf.parse ("2009-11-04");//string-->dateString sdate = Sdf.format (date);//Data-->string ===============================================================Package com.hefeng.test;Import Java.text.DateFormat;Import java.text.ParsePosition;Import Java.text.SimpleDateFormat;Import Java.util.Calendar;Import Java.util.Date;Import Java.util.Gregoria

(1) in the English version of Oracle, the default date format is ' Dd-mon-yy ', such as ' 01-jan-98 ' The Oracle default date format in Chinese version is ' Day-month-year ', for example ' 2 January-August-2003 ' or ' 2 January-August-03 ' (2) Convert string to date Using Oracle Internal Functions to_date () The parameter of the To_date () function is the inversion of the To_char () function argument. To_date (string_value, Date_format) The variables are defined as follows: String_value:

:26:513SELECT CONVERT (varchar), GETDATE (), 120) 2009-07-15 16:06:26SELECT CONVERT (varchar), GETDATE (), 121) 2009-07-15 16:06:26.513SELECT CONVERT (varchar), GETDATE (), 126) 2009-07-15t16:06:26.513SELECT CONVERT (varchar), GETDATE (), 130)??? 1430 4:06:26:513PMSELECT CONVERT (varchar), GETDATE (), 131) 23/07/1430 4:06:26:513pm The style number has the following meanings when converting time: ---------------------------------------------------------------------------------------------------

Format Date string-->date or data-->string simpledateformat sdf = new SimpleDateFormat ("Yyyy-mm-dd"); Date date = Sdf.parse ("2009-11-04");//string-->date String sdate = Sdf.format (date);//Data-->string =========== ==================================================== package com.hefeng.test; Import Java.text.DateFormat; Import java.text.ParsePosition; Import Java.text.SimpleDateFormat; Import Java.util.Calendar; Import Java.util.Date; Import Java.ut

the CONVERT function1. Date and Time Styles Without century digits (yy) With century digits (yyyy) Input/Output - 0 or Mon dd yyyy hh:miam (or PM) 1 101 1 = mm/dd/yy101 = mm/dd/yyyy 2 102 2 = yy.mm.dd102 = Yyyy.mm.dd 3 103 3 = Dd/mm/yy103 = dd

There are several scanning methods under Oracle 10g, note that the last scanning method, when the partition column is calculated, will not walk the partition, which is calculated with the index column will result in the same as the index.--Scan individual partitions PARTITION RANGE single--Continuous scanning of multiple partitions PARTITION RANGE ITERATOR--Non-sequential scanning of multiple partitions PARTITION RANGE inlist--Scan all partitions PARTITION RANGE allsql> drop table T_range purge;

To_date (' 2007-06-28 19:51:20 ', ' yyyy-mm-dd HH24:mi:ss ') from dual;In general sql:Select To_date (' 2007-06-28 19:51:20 ', ' yyyy-mm-dd HH:mm:ss ') from dual;Difference:1, HH modified to HH24.2, minutes of mm modified to MI. The 24-hour format shows up with HH24. Select To_char (sysdate, ' Yyyy-mm-dd HH24:mi:ss ') from dual; Select To_date (' 2005-01-01 13:1

Label:Addition Select Sysdate,add_months (sysdate,12) from dual; --plus 1 years Select Sysdate,add_months (sysdate,1) from dual; --Add January Select Sysdate,to_char (sysdate+7, ' Yyyy-mm-dd HH24:MI:SS ') from dual; --plus 1 weeks Select Sysdate,to_char (sysdate+1, ' Yyyy-mm-dd HH24:MI:SS ') from dual; --plus 1 days Select Sysdate,to_char (sysdate+1/24, ' Yyyy-mm

C #DateTime. Now. ToString ("yyyy-MM-01 ");DateTime. Parse (DateTime. Now. ToString ("yyyy-MM-01"). AddMonths (1). AddDays(-1). tow.datestring ();// Last month, minus a monthDateTime. Parse (DateTime. Now. ToString ("yyyy-MM-01"). AddMonths (-1). to1_datestring ();DateTime. Parse (DateTime. Now. ToString ("yyyy-MM-01"

same thing, a week is 7 days, last week is this week minus 7 days, and next week is the sameDateTime.Now.AddDays (Convert.todouble (0-convert.toint16 (DateTime.Now.DayOfWeek))-7). ToShortDateString ();DateTime.Now.AddDays (Convert.todouble (6-convert.toint16 (DateTime.Now.DayOfWeek))-7). ToShortDateString ();Next weekDateTime.Now.AddDays (Convert.todouble ((0-convert.toint16 (DateTime.Now.DayOfWeek)) + 7). ToShortDateString ();DateTime.Now.AddDays (Convert.todouble ((6-convert.toint16 (DateTime

(DateTime.Now.DayOfWeek)]; //last week, the same thing, a week is 7 days, last week is this week minus 7 days, and next week is the sameDateTime.Now.AddDays (Convert.todouble (0-Convert.ToInt16 (DateTime.Now.DayOfWeek))-7). ToShortDateString (); DateTime.Now.AddDays (convert.todouble (6-Convert.ToInt16 (DateTime.Now.DayOfWeek))-7). ToShortDateString (); //next weekDateTime.Now.AddDays (Convert.todouble (0-Convert.ToInt16 (DateTime.Now.DayOfWeek)) +7). ToShortDateString (); DateTime.Now.Ad

# DateTime.Now.ToString ("yyyy-mm-01"); DateTime.Parse (DateTime.Now.ToString ("yyyy-mm-01")). AddMonths (1). AddDays (-1).ToShortDateString (); Last month, minus one month DateTime.Parse (DateTime.Now.ToString ("yyyy-mm-01")). AddMonths (-1).ToShortDateString (); DateTime.Parse (DateTime.Now.ToString ("yyyy