DAYNAME returns a string of both upper and lower cases. For the day part of the parameter, the name of the day (for example, Friday) is expressed by week ).DAYOFWEEK returns the day of the week in the parameter, expressed by an integer ranging from 1 to 7, where 1 represents Sunday.DAYOFWEEK_ISO returns the day of the week in the parameter, expressed by an integer ranging from 1 to 7, where 1 represents Monday.DAYOFYEAR returns the day of the year in the parameter, expressed by an integer rangin
Dayname returns a string of both upper and lower cases. For the day part of the parameter, the name of the day (for example, Friday) is expressed by week ).
Dayofweek returns the day of the week in the parameter, expressed by an integer ranging from 1 to 7, where 1 represents Sunday.
Dayofweek_iso returns the day of the week in the parameter, expressed by an integer ranging from 1 to 7, where 1 represents Monday.
Dayofyear returns the day of the year in the parameter, expressed by an in
Checkdate: Verify the correctness of the date.
Date: Formats the time of the server.
Strftime: The time of the server is formatted locally.
GETDATE: Get time and date information.
Gettimeofday: Get the current
stamp parameter.
Timestamp_format returns a time stamp from a string that has been interpreted with a character template.
Timestampdiff The estimated slack represented by the type defined by the first parameter, based on the time difference between two timestamps.
To_char returns the character representation of a time
using user format* @param strdate Date string* @param pattern Date format* @return*/public static Date Parse (string strdate, string pattern) {SimpleDateFormat df = new SimpleDateFormat (pattern);try {Return Df.parse (strdate);catch (ParseException e) {E.printstacktrace ();return null;}}/*** Add a few month to the date
Label:DB2 Date Time function (DATE (TRIM (CHAR (dt#11y)) | | -' | | TRIM (CHAR (dt#11m)) | | ' -' | | TRIM (CHAR (dt#11d))) between date (' StrDate1 ') and date (' StrDate2 ')) (Y > Y) or ((y = y) and (M > m)) or ((y = y) and (M = m) and (d >= D)) Basis To use SQL to obt
monthThe control character that represents the day number: D---0 of the month before the date j--there is no 0 in front of the day numberThe control character for the week: l--English week d--WeekThe control character that represents the hour: h--from 1-12 hours h---from 0 to 23 hoursRepresents the control character a---am or pm a---am or PM in the afternoonThe control character that represents the minute: I---Take a value of 00-59Another z--
strdate = "2 008-10-19 10:11:30.345 ";//Prepare the first template, extract the date number string from the string pat1 =" Yyyy-mm-dd HH:mm:ss. SSS ";//Prepare a second template to change the extracted date number to the specified format string pat2 =" yyyy mm month DD Day hh when mm min ss sec sss milliseconds "; SimpleDateFormat sdf1 = new SimpleDateFormat (PAT1);//Instantiate Template object SimpleDateF
The Python time and date operations need to use the datetime and Timing standard library modules.One, Time module1.time module represents the way of time① time Stamp② formatted
Java8 introduced a new set of time and date APIs, and this essay will illustrate the API for learning Java8.
Java. In the time package, the class is immutable and thread-safe. The new time and date APIs are located in Java.time, and the following are key classes
instant--It
$arr [yday]th];
?>
Effect:
9.3 Unix Timestamp
The timestamp is the creation, modification, and access time in the file properties. Digital time stamp service, DTS, is one of the Web site security services items that provide the security of date and time information fo
lowercase c represents the ISO8601 date, the date format is YYYY-MM-DD, the letter T is used to interval the date and time, the time format is HH:MM:SS, and the timezone is used Greenway
Deviations from the standard Time (GMT).
echo Date (' Z ');
Today is the 36th day of the year.
Lowercase T represents the current month and how many days
Lowercase Z means today is the first day of the year
4, other
echo Date (' T ');
Utc
Capital T indicates the time zone setting of the server
echo Date (' I ');
0
Capital I indicates whethe
is 2000 or 2008.
Yday
The day of the year, the return value is 0 ~ 365
Weekday
Indicates the complete text of the day of the week. the returned value is Sunday ~ Saturday
Month
The complete text of the month. the returned value is January ~ December
0
Returns the number of seconds from the UNIX epoch.
Example:
$ Arr = getdate ();
Echo $ arr [year]. "-". $ arr [mon]. "-". $ arr [mday]. "";
Echo $ arr [hours]. ":". $ arr [minutes]. ":". $ arr [seconds]. "". $ arr [weekday];
This article is intended for beginners who are new to DB2 databases and want to understand how to operate DB2 basic date and date usage. Most people who have used other databases will be pleasantly surprised to see how easy it is to operate on the date and time in the DB2 database.
Basic
To use SQL to obtain the curren
return value is 2000 or 2008.
Yday
The day of the year, the return value is 0 ~ 365
Weekday
Indicates the complete text of the day of the week. the returned value is Sunday ~ Saturday
Month
The complete text of the month. the returned value is January ~ December
0
Returns the number of seconds from the UNIX epoch.
Example:
$ Arr = getdate ();
Echo $ arr [year]. "-". $ arr [mon]. "-". $ arr [mday]. "";
Echo $ arr [hours]. ":". $ arr [minutes]. ":". $ arr [seconds]. "". $ arr [weekda
NSDate: Date-related classesNstimeinterval: Time interval-related classesNSDateFormatter: Time Formatter-related classesLearn the knowledge points of the SectionTo:1. Date to timestamp2. Date Turn string3. Date to the specified fo
MySQL obtains the current date and time stamp function bitsCN.com
MySQL returns the current date, time, and timestamp.
1.1 obtain the current date + time (
year and, if no year is entered, in the current year. This function can be used to replace the easter_date () 1970-2037 years beyond the scope of the calculation of the problem.Usage examples?Echo Easter_days (1999);echo easter_days (1492);Echo Easter_days (1913);?>The result returned is:14 (4/4)32 (4/22)2 (3/23)Reference Easter_date ()Mktime Gets the UNIX time stamp.Syntax: int mktime (int hour, int minute, int second, int month, int day, int year);
This article is intended for beginners who are new to the DB2 database and want to understand how to operate the date and time. The following is a description of the specific solution. I hope it will help you in your future study. Most people who have used other databases will be pleasantly surprised to see how easy it is to operate on the date and
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