It is convenient to use timestamp to record datetime, but sometimes it is not necessary to display the milliseconds after the decimal point, so you need to redefine the format when converting to string. timestamp converted to string:
One, string and Date (java.util.Date) interchange
1.1 String-> Date
String datestr = "//::";
Date date = new Date ();
Note format must match the format of date string
dateformat sdf = new SimpleDateFormat ("Yyyy/mm/dd
Introduction to timestamp basic knowledge
Variant of the timestamp1,timestamp DEFAULT current_timestamp on UPDATE current_timestamp refreshes this data column when new records are created and existing records are modified
Convert js timestamp to date format. Convert js timestamp to date format.
Unix timestamp: Unix timestamp, or Unix time, POSIX time ), it is a time representation, which is defined as the total number of seconds from January 1, January 01, 1970 to
The difference between a date datetime timestamp in a transfer databaseDATETIME, date, and timestamp types are related. This article describes their characteristics, how they are similar and different.A datetime type is used when you need a value
Variants of the timestamp 1,timestamp DEFAULT current_timestamp on UPDATE current_timestampRefreshes the data column when new records are created and existing records are modified 2,timestamp DEFAULT Current_timestamp This when creating a new
Timestamp converted to string:SimpleDateFormat df = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");//defines the format, does not display millisecondsTimestamp now = new Timestamp (System.currenttimemillis ());//Get system Current timeString str =
A variant of the timestamp
The timestamp timestamp can have multiple different characteristics when it is created, such as:
1. Refresh the data column when creating a new record and modifying an existing record:
Mysql TIMESTAMP Usage Details, mysqltimestamp
1. TIMESTAMP variants
TIMESTAMP timestamps can have multiple different features during creation, such:
1. Refresh the data column when creating a new record or modifying an existing record:
Date converted to timestampPHP provides functions that can easily convert various forms of a date to a timestamp, which is mainly:
Strtotime (): Resolves the datetime description of any English text to a timestamp.
Mktime (): Gets the
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