date difference function in netezza

() | +---------------------+----------+---------------------+ | 2008-08-08 22:28:21 | 0 | 2008-08-08 22:28:21 | +---------------------+----------+---------------------+mysql> Select Sysdate (), Sleep (3), sysdate (); +---------------------+----------+---------------------+ | Sysdate () | Sleep (3) | Sysdate () | +---------------------+----------+---------------------+ | 2008-08-08 22:28:41 | 0 | 2008-08-08 22:28:44 | +---------------------+----------+---------------------+ As you can see, the

Tags: sql time date Timestampdiff MySQLFor a table of the following testtable, if you want to query a date that is 30 years from nowYou should use the following SQL statement:SELECT * from TestTable where Timestampdiff (Year,date,now ()) This method, even if the date field is a varchar type, can be queried successfully

In the PHP program, a lot of times will encounter the problem of processing time, such as: Determine how long the user online, a total number of days of login, two posts published the difference between the different operations of the log and so on. In this article, we give an example of how PHP calculates the two-day difference between a year, a month, and a day.Method One:/** +----------------------------

one week, month, year, respectively.Set @dt = ' 2008-08-08 ';Select DayOfWeek (@dt); --6Select DayOfMonth (@dt); --8Select DayOfYear (@dt); --221The date ' 2008-08-08′ is the 6th day of the week (1 = Sunday, 2 = Monday, ..., 7 = Saturday), the 8th day of January, and the No. 221 day of the year.4. MySQL Week ... Functions: Week (), WeekOfYear (), DayOfWeek (), Weekday (), Yearweek ()Set @dt = ' 2008-08-08 ';Select Week (@dt); --31Select Week (@dt, 3)

The MySQL database has a table infor, under which there is a field in time and the type is int (10), and there is a data bit under the field: 1383346800 Here's the problem: I use the PHP function echo date ("Y-m-d h:i:s", 1383346800); The operation result is: 2013-11-01 23:00:00 And with the MySQL function select From_unixtime (1383346800); The operation re

Tags: amp time tle When string conversion interval ACE conversion netOne, Timestampdiff Grammar: Timestampdiff (INTERVAL,DATETIME_EXPR1,DATETIME_EXPR2). Description Returns an integer difference between a date or datetime expression Datetime_expr1 and datetime_expr2the. The unit of the result is given by the interval parameter. The parameter must be one of the following values: Frac_second. Indic

Solution to an eight-hour difference in the date time in php Solution to an eight-hour difference in the date time in php In Windows, in the default PHP configuration, the time value returned by the date function is alwa

://ourworld.compuserve.com/homepages/graeme_birchall ). What if you accidentally omit the quotation marks in a date function? The conclusion is that the function will work, but the result will be error: select DATE (2001-09-22) from SYSIBM. SYSDUMMY1; Re

The examples in this article describe the way JavaScript asks for a date difference. Share to everyone for your reference, specific as follows: Difference between two date days: number of days of the date string, before-after, Sdate1-sdate2

MySQL returns the current date and time function summary bitsCN. com1.1 returns the current date + time (date + time) function: now () Mysql> select now (); + --------------------- + | Now () | + --------------------- + | 22:20:46 | + --------------------- + In addition to

, like DayOfWeek (), returns the position of "one day" in a week. The difference is in reference to the standard, weekday: (0 = Monday, 1 = Tuesday, ..., 6 = Sunday); DayOfWeek: (1 = Sunday, 2 = Monday, ..., 7 = Saturday)MySQL Yearweek () function, returns the year (+) + Week position (31).5. MySQL returns the week and month name functions: Dayname (), MonthName ()Set @dt = ' 2008-08-08′;Select Dayname (@d

|+----------------------+-------------------------+mysql period_diff (P1,P2): Date p1-p2, return N months. Mysql> Select Period_diff (201408, 201401); +-----------------------------+| Period_diff (201408, 201401) |+-----------------------------+| 7 |+-----------------------------+In MySQL, these two date functions are rarely used under normal circumstances.4. MySQL

A person at home, nothing to do, suddenly think of a long time did not write things, so ... Often when you calculate on two dates, not only do you want to have a separate year or year, get the details, the date results are accurate to the day, the following last function and a procedure are used to complete this function. First

weeks =datename (weekday, ' 2004-10-15 ')function parameters/FunctionsGetDate () returns the current date and time of the systemDateDiff (INTERVAL,DATE1,DATE2) returns the difference between Date2 and date1 two dates in the interval specified wayDate2-date1DATEADD (interval,number,date) with the

What is the difference between date and gmdate in PHP? What is the difference between date and gmdate in PHP? The time in PHP has 2 formatting functions: Date () and Gmdate (), which are described in the official documentation: date