In a mysql table, is it possible to insert data into multiple connections at the same time?

If at one ten thousandth of a millisecond or one millionth of a millisecond, at exactly the same moment, can two connections perform insert into the same table at the same time? When modifying a data table, can two connections modify the same data table (different rows) at exactly the same time?

我想大声告诉你 2017-05-27 17:39:16 0  2  1056

javascript - element-ui's datetime picker DateTimePicker has time picker display confusion?

1. As mentioned in the title, the date and time picker DateTimePicker of element-ui appears to have confusing display of the time picker? Please tell me, is this issue a version compatibility issue? What versions of vue and element-ui are currently compatible? Thanks!

phpcn_u1582 2017-05-19 10:09:24 0  2  1129

Please ask for help. After obtaining the K line, the time only displays the current time.

The code is as follows. Now the K-line time is the same. Normally, each time is different. public function getkdata($pid = null, $num = null, $interval = null, $isres = null) { $pid = empty($ pid) ? input('param.pid'

Sunflower? 2022-02-17 00:00:54 0  0  1109

mysql - Use sql or pandas to complete data from one table to another.

As shown in the figure, Figure 1 shows the number of people entering the station at each subway station at each time. Since it is a simulated real data, for example, no one enters the station at Qilizhuang at 5 o'clock, so there is no data record, and Figure 2 is a complete time period table. From 5...

仅有的幸福 2017-05-27 17:39:17 0  2  1044

###usage

{$time|date='Y-m-d H:i:s',$time} cannot display the time like this. ###Yes

Z|_ン詠逺 2018-06-10 21:01:59 0  1  1521

php - How to prove that two events happened at the same time?

I know that in computer theory, concurrency does not mean at the same moment, but within a certain period of time. The emphasis is on a certain period of time. Will the computer execute an event at the same time? Single-core CPUs are constantly switching, but what about multi-cores or multiple machi...

给我你的怀抱 2017-06-24 09:42:21 0  1  787

javascript - How to set the default time when using the mobiscroll plug-in

I want to change the default time to 1990-01-01. Using the defaultValue parameter does not work. Can anyone help? Thank you. You can also recommend other plug-ins. Thank you.

習慣沉默 2017-05-19 10:37:44 0  2  752

javascript - Is there a time selection plug-in similar to High Speed ​​Rail Butler?

To display holidays, holidays, and lunar calendar, I used calendar.js to implement it. It can only display one month. You need to click the button to display the next month. I will refer to this https://github.com/zhangchen2... The effect is completed.

phpcn_u1582 2017-05-16 13:35:34 0  4  531

Should I put the data changing code in a function or just in an action?

I'm currently writing a bus timetable application that uses object types to model timetable "documents". interfaceTimetable{name:stringstops:string[]services:string[][]} In addition to the types, I have a number of functions, and if I'm going to use mutations, I usually write them as metho...

P粉410239819 2024-01-10 18:11:13 0  1  400

javascript - Use of perfect-scrollbar plug-in

I searched a lot on the Internet about how to use this plug-in, but found that none of them were correct. Ask the master: How to make the initialization of this plug-in display the y-axis scroll bar? Why is the x-axis scroll bar not displayed by default? Also, the use of this plug-in is very differe...

代言 2017-07-05 10:39:45 0  1  1535

javascript - The Date variable returned in the background is null, but the value taken out using moment.js is Invalid date

As the title says, the time I retrieved in the background is null, but the time displayed using moment.js is Invalid date. The front-end code using datatable is: {code...} When testTime is null, the front-end displays Invalid date. What is this? What causes the problem? How can it be displayed as em...

三叔 2017-07-05 10:42:27 0  1  1012

How to open select dropdown on hover using Bootstrap Vue

I need a way to trigger a <select> or <b-form-select> and display a dropdown list of options on mouseover. No use of JQuery or any external plugins other than Vue.js.

P粉635509719 2024-03-26 14:04:58 0  1  496

How to make the corresponding plug-in also exit when vim exits?

The nerdtree plug-in will not close automatically. You must enter: q to close it. If the syntastic plug-in prompts that there is a problem with the code syntax, the plug-in will not automatically close when exiting. You must enter: q to close. How can I set them up to automatically exit?

淡淡烟草味 2017-05-16 16:36:47 0  2  788

java - springboot returns wrong time

Configure the time zone according to what is said on the Internet. I have tried both upper and lower case. The time printed in the second picture is consistent with the database and is correct. However, after executing the return, the time becomes eight hours and the database It shows nine o'clock, ...

给我你的怀抱 2017-05-17 10:05:06 0  1  805

Convert numbers to time in Google Spreadsheet

I'm trying to build an automated GoogleSheets spreadsheet where I can enter the date, start time, lunch time, end time, number of hours worked per day, and finally sum up the number of hours worked for a month. Creating a work schedule in Google Spreadsheet isn't too difficult, but there are some im...

P粉575055974 2023-09-04 10:51:21 0  1  782

node.js - nodejs multi-threading how to solve the problem of data consistency

Imagine such a scenario. For example, a test table has a field {code...}. When the user opens an editing interface, the data read from the database is {code...}. Then he changes a name and it becomes like this { Code...} At this moment, this test table and other programs are...

ringa_lee 2017-06-05 11:12:48 0  1  588

javascript - Modify wdatepicker date control

When I click the Today button, I want the time in the form above to always display 23:59. What should I do

高洛峰 2017-05-19 10:43:34 0  1  509

python regular expression replacement

Recently I encountered a regular expression replacement problem. Each piece of data in the time data is preceded by [0]= [1]= [2]= [3]= this index: {code...} Because of some reasons, the previous The index is gone and can only be added using regular expressions. The problem is that the amount of dat...

淡淡烟草味 2017-05-18 10:58:52 0  2  601