timestamp

问题 I have this access_log table create_time | time_spent --------------+------------ NOV 02, 2017 | 00:00:00 NOV 02, 2017 | 01:45:04 NOV 02, 2017 | 00:00:00 NOV 02, 2017 | 00:00:00 NOV 02, 2017 | 00:39:29 NOV 02, 2017 | 03:05:49 NOV 03, 2017 | 03:58:57 NOV 03, 2017 | 00:52:29 NOV 03, 2017 | 02:53:25 using this table, make looks like this using PostgreSQL . it should add all time_spent column data of respective date create_time | time_spent --------------+------------ NOV 02, 2017 | 05:30:22 NOV

问题 I have a google spreadsheet that is populated by a form, so timestamps are automatically added in the first column for each row. I have a script that removes duplicate rows in my spreadsheet (5 specific columns must be the same for it to be a duplicate, while some other columns are ignored), but I want to modify it so that if I have multiple rows for the same person's data but with different timestamps, the script will keep the most recent row. How would I do this? Thanks! /** removes

问题 OK, so I want to know this: Is my IP in my database? If yes, find the timestamp of entry. So far I have this: $ip = $_SERVER['REMOTE_ADDR']; $myip = mysql_query("SELECT * FROM votes WHERE ip = '$ip'"); If(mysql_num_rows($myip) > 0){ //find timestamp and name it as a variable e.g $ipTime Thats as far as I've got, and for the life of me, I'm a little stuck, anyone help me? 回答1: This should do the trick, it should get the timestamp and convert it to a human readable format, you may also want to

问题 I'm attempting to use python to insert a timestamp into column created_by of a mysql db. Here is my database table setup.. CREATE TABLE temps ( temp1 FLOAT, temp2 FLOAT, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ); temp1 and temp2 and populating correctly but receiving an error for the timestamp Warning: Data truncated for column 'created_at' at row 1 cursor.execute("""INSERT INTO temps VALUES (%s,%s,%s)""",(avgtemperatures[0],avgtemperatures[1],st[2])) ((71.7116, 73.2494, None),) Here

问题 I would like to know how to convert 64 bit long Data Type to any of the 16 bit Data Types. This feature is required in the Ethernet Application to include the Time Stamp . Only 2 Bytes ( 16 bits ) are available to include the Time Stamp . But we are getting 64 bit long as the Time Stamp value from Win API . So a conversion from 64 bit data type to to 16 bit data type is essential. 回答1: Well, you can't fit 64 bits of information into 16 bits of storage without losing some of the information.

问题 I am scheduling a cron that runs every minute and gives the word count of REJECT for every minute. My file is logged continuously and to avoid redundant read, I store the lines I read last time while running the script using tail -n +lastTimeWC. But how do I count number of REJECT per minute. sample input: 20170327-09:15:01.283619074 ResponseType:REJECT 20170327-09:15:01.287619074 ResponseType:REJECT 20170327-09:15:01.289619074 ResponseType:REJECT 20170327-09:15:01.290619074 ResponseType

问题 Lets say i have long currentMillis and long oldMillis. The difference between the two timestamps is very tiny and always less than 1 second. If i want to know the difference between the timestamps in milleseconds, i can do the following: long difference = currentmillis-oldmillis; And if i want to convert difference to seconds, i can just divide it by 1000. However if the difference in milliseconds is less than 1000 milliseconds(<1 second), dividing it by 1000 will result in 0. How can i get

问题 I've been reading other questions and had no luck. I have a table with columns (stamp,value). The 'stamp' column stores hourly timestamps. What I'm trying to do is to retrieve SUM(value) for intervals of 24 hours depending on a range of timestamps specified in the query: SELECT stamp, Sum(value) FROM table WHERE stamp >= Date_sub('2012-12-02 05:00:00', INTERVAL 1 day) AND stamp < '2013-01-01 05:00:00' GROUP BY Date(stamp) The result I'm looking for would look like this: stamp value 2012-12-02

问题 I would like to take a string like: 1511030830 // YYMMDDHHMM And create a MySQL timestamp like: 2015-11-03 08:30:00 However when try this it will not work: $string='1511030830'; $date=date("Y-m-d H:i:s", $string); var_dump($date);exit; Because the above outputs: string(19) "1970-01-01 02:00:00" I am using PHP version 5.5.30 Is there some kind of settings in php.ini that would affect this? 回答1: You can use DateTime::createFromFormat: <?php $date = DateTime::createFromFormat('ymdHi',

问题 I am running into trouble trying to compare and plot two files of different length. In MATLAB I do not know how to plot two vectors of different length in the same x-axis. As one file has some data missing, I want to create a row and put blank space for that corresponding time stamp. Here are samples of data files: file 1: date time T01 T02 T03 T04 T05 8/16/2009 0:00, 516.900024, 450.5, 465.200012, 546.799988, 539.700012 8/16/2009 0:10, 351.200012, 398.899994, 418.100006, 510.299988, 518.5 8