From_unixtime () is the time function in MySQL
Date is the parameter that needs to be processed (the parameter is a UNIX timestamp), can be a field name, or it can be a Unix timestamp string
The following '%y%m%d ' is primarily the formatting of the return value
For example:
mysql> select From_unixtime ( Span style= "color: #800000; Font-weight:bold; " >1249488000 , %y%m%d ' ' -> 20071120 MySQL > select from_unixtime (1249488000 , '
If no parameter is called, returns a Unix timestamp (the number of seconds after the ' 1970-01-01 00:00:00 ' GMT) as an unsigned integer. If you call Unix_timestamp () with date, it returns the value of the parameter in the form of a number of seconds after the ' 1970-01-01 00:00:00 ' GMT. Date can be a date string, a DateTime string, a timestamp, or a number in the YYMMDD or YYYMMDD format of a local time.
For example:
Mysql> SELECTUnix_timestamp (); (Execution makes time: the- ,- . Ten:Ten: +) -1249524739MySQL> SELECTUnix_timestamp ('2009-08-06') ; -1249488000
Use the From_unixtime function, as follows: From_unixtime (Unix_timestamp,format) returns a String representing the Unix time tag, formatted according to the format string. FORMAT can contain the same modifiers as the entries listed in the Date_format () function. Formats the date value according to the format string. The following modifiers can be used in the format string:%M-month name (January ... December)%W-week name (Sunday ... Saturday)%D The date of the month with English prefixes (1st, 2nd, 3rd, etc.). )%Y years, numbers,4bit%Y years, numbers,2bit%a abbreviated weekday name (Sun ... Sat)%Number of days in the D-month, number (xx...... to) %Number of days in the E-month, number (0...... to) %M-month, number ( on...... A) %C Month, number (1...... A) %b Abbreviated month name (Jan ...Dec) %J Number of Days in a year (001......366) %H Hours (xx...... at) %K Hours (0...... at) %H Hours ( on...... A) %I-Hour ( on...... A) %L Hours (1...... A) %I minute, number (xx...... -) %R time, AHours (hh:mm:ss[AP]M)%T time, -hours (HH:MM:SS)%s seconds (xx...... -) %s seconds (xx...... -) %P AM or PM%W one days in the week (0=Sunday ...6=Saturday)%U Week (0...... the), here Sunday is the first day of the week%U Week (0...... the), here Monday is the first day of the week%%A text "%”。
MySQL query timestamp (TIMESTAMP) converted to common readable time format