milliseconds to microseconds

Many friends migrating to MySQL from Oracle or SQL SERVER encounter the same problem, that is, the storage and display of milliseconds. Since MySQL only provides datetime, TIMESTAMP, time, date, year, and the minimum unit of datetime and TIMESTAMP

Shell script example: calculate the time difference in milliseconds and microseconds, and shell microseconds You can use the time command to calculate the execution duration of a command. Although the time command can be precise to milliseconds, the

Reprinted statement: This blog Article Allow free reprint, but reprint need to indicate the author, source: Denny wqf363@hotmail.com Source: www.huntmine.com a) time unit seconds (second), milliseconds (MS), microseconds (μs ), nanoseconds (NS),

The unit of time can be from very small to great, the following description is to convey a feeling of a large time span.A second (One-zero seconds of One-zero)The scientists timed the instantaneous events with a few seconds.Researchers have used

How can we get the system time in microseconds? Gracian (Mylee) 15:08:30 on C/C ++/ C LanguageQuestion? Number of questions: 20. replies: 6 On the first floor, chillman (the talented old man) replied to 15:16:59, with a score of 8. The number of

Linux time-based operation functions accurate to microseconds-general Linux technology-Linux programming and kernel information. The following is a detailed description. In Linux, if the time is computed in seconds, I believe everyone has used time

Article Title: time-based operation functions accurate to microseconds in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems,

 Description of Use The Usleep command is used to delay the time in microseconds (sleep some number of microseconds), which actually does not reach this precision (Probably not accurate on many machines the mic  Rosecond. Count on precision only

  In Linux, if the time is computed in seconds, I believe everyone has used time and other functions to implement it. But what should I do more accurately? What about milliseconds and microseconds? Take a look at the following source code to

The code is as follows: see note for details#include #includestring.h>#include#includeintMain () {structtimeval start; structTM *local_time =NULL; Static Charstr_time[ -]; Charms[ -]; Gettimeofday (&start, NULL);//Gets the current time, the struct