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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11251

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17584

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11299

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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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 improvements I'd like to make. One is that even though the spreadsheet correctly calculates the number of hours worked for the day, it displays the total as clock time, such as 8:22 PM, rather than 8 hours and 22 minutes. Another thing is that this format forces me to write hours in time format, which is tedious. I hope

2023-09-04 10:51:21

The backend sends promotion ideas to the frontend according to the time set by the user.

Dear bosses, I want to ask you something. I have a business: the merchant user sets multiple time periods and sends multiple promotional messages to the front end in each different time period. For example: User 1 sets 8 o'clock, 10 o'clock, and 15 o'clock to publish 10 pieces of information to the front end and writes them into the table. User 2 sets 9 o'clock, 11 o'clock, and 12 o'clock to publish 20 pieces of information to the front end and writes them into the table. User 3 has set 7 o'clock, 13 o'clock and 14 o'clock to publish 50 pieces of information to the front end and written it into the table. User 4 has set 16 o'clock and 18 o'clock to publish 50 pieces of information to the front end and written it into the table. User N1 User N2 Is there any better way to implement this kind of business?

2023-06-17 16:59:05

javascript - Some problems arise when using a form to submit two time periods to request the background to return corresponding data!

The current requirements are as follows. There is a form input on the page to request data in the corresponding time period from time a to time b. The background interface document is as follows. I wrote it like this and found that I still cannot request data for this time period. How should I write it? ?

2017-05-16 13:28:29

SQL - How to get the latest entry between two different tables? (The timestamp is not stored)

I'm working on an ongoing project in which I'm dealing with quotes and the database structure is not well organized and I can't make much changes to the database schema to fix it. In the database: two types of quotes and saved in two different tables. Assume regular_quotes and premium_quotes are two tables. The situation is, there is not one table that stores date/time, there is not any column related to created_at and there is no alternate column that stores date/time. I have to check which table has the latest entry from these two tables. Table 1 Regular quotation marks id|nam

2023-09-07 00:14:25

Create database tables and manage activity over time

There are two types of users, one is free users and the other is paid users. As a user with FreeUser role, I can only have 3 open (time has not ended yet) activities because PayingUser has no limit. How to manage it in database table

2023-09-14 09:27:53

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How to use MySQL to create a delivery schedule for a grocery shopping system

Course Introduction：How to use MySQL to create a delivery schedule for a grocery shopping system. With the rapid development of the Internet, online shopping has become a part of people's daily lives. As a form of online shopping, the grocery shopping system is favored by more and more people. In the grocery shopping system, the arrangement of delivery schedule is crucial. This article will introduce how to use MySQL to create a delivery schedule for a grocery shopping system and provide specific code examples. Create database and tables First, we need to create a new database in MySQL to store data related to delivery schedules.

2023-11-01 comment 0 1232

How to reserve a delivery time with Meituan

Course Introduction：How to reserve a time for delivery with Meituan? Meituan can provide us with online ordering services, helping us purchase a large number of high-quality gourmet meals without leaving home. Not only can we order food online, we can also reserve a time for food delivery, so that we can get the freshest food and beverage service when it is delivered to our home. If you don’t know how to make a reservation, please follow the editor to take a look at the Meituan reservation and ordering tutorial. How to make an appointment for delivery with Meituan 1. First enter the software interface and click [Go to Checkout] to enter 2. Enter the interface and click [Immediate Delivery Time] to enter 3. Finally enter the interface to select a time to make an appointment

2024-02-05 comment 0 2575

How to specify delivery time on JD.com_Introduction to JD.com's specified delivery time

Course Introduction：1. Telephone communication: If our product has been ordered and the delivery time has not been selected, you can call the courier's phone number when the designated courier is delivering, and discuss it with the courier, and then specify a time for delivery. 2. App designation: If you have not placed an order for our products, you can submit the order after selecting the products (before selecting the payment method), select the express arrival time, and then select a time when we are available for delivery. Tutorial on specifying delivery time on JD app 1. First, click [Buy Now/Go to Checkout] on the shopping cart page or product details page. 2. Then select your address and other information and click [Delivery]. 3. Finally, select the date and time you want to deliver in the delivery time below. Delivery can be delayed by one week at the latest.

2024-06-05 comment 0 631

How to design a Java switch grocery shopping system with order delivery time function

Course Introduction：How to design the Java switch of the order delivery time function of the grocery shopping system. The order delivery time function plays a very important role in modern e-commerce systems. It is directly related to the user's shopping experience and the merchant's delivery efficiency. In the switch grocery shopping system developed in Java, how to design the order delivery time function is a problem that needs careful consideration. This article will introduce how to design this function from the aspects of demand analysis, database design and code implementation. 1. Demand analysis Before designing the order delivery time function, we need to conduct demand analysis.

2023-11-01 comment 0 582

How to use PHP to develop the takeout delivery time estimation function of the ordering system?

Course Introduction：How to use PHP to develop the takeout delivery time estimation function of the ordering system? With the continuous development of the takeout market, the takeout delivery time estimation function of the ordering system has become one of the important factors for users to choose a takeout platform. Users hope to know exactly how long it will take to deliver their meals when placing an order, so that they can reasonably arrange their time according to their needs. PHP can be a powerful tool when developing the takeout delivery time estimation function of the ordering system. PHP is a powerful server-side scripting language suitable for developing interactive web applications.

2023-11-01 comment 0 1398

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