php - Novice purchasing, selling and inventory management design, please guide~

1. I am learning to develop a purchase, sales and inventory management system. Now I encounter a problem. How to count the quantities when making inventory reports? 2. Let me first list the several data tables I use ⑴ inventory table ⑵ warehouse table ⑶ warehouse-in slip ⑷ warehouse-out slip ⑸ exist...

怪我咯 2017-06-05 11:07:08 0  1  724

Translate "Operator value in where condition" into Chinese as "Operator value in where condition"

How can I do this? SELECTsum(buy-sale)asistockformtbl_productwhereistock>0 I am not interested in the following method. SELECTsum(buy-sale)asistockformtbl_productwheresum(buy-sale)>0

P粉754477325 2023-09-13 13:58:40 0  1  703

How to use PHP to realize that the system automatically refunds the money to the buyer if the seller fails to accept the order.

How to use php to realize that the seller does not accept the order, and the system automatically refunds the buyer. How to use php to realize that the seller does not accept the order, and the system automatically refunds the buyer.

fairy 2018-07-26 16:34:43 0  2  1098

MySQL issues when summarizing sales data from two separate tables

Thank you very much in advance for your support. I'm learning SQL and generating some data to play with, but I'm stuck on one simple thing. The table in the screenshot below shows part of my sales20 table, which shows the sales achieved by each employee in 2020 along with region and date information...

P粉391677921 2024-04-04 14:22:13 0  2  552

mongodb - e-commerce platform, how is the monthly sales volume of products calculated?

For example, the total sales volume in a month is 500 pieces. On February 1st, the sales volume was 11 pieces, but on March 1st, it was only 10 pieces. Then after March 1st, the total sales volume will become 499 pieces. Do you write a scheduled task to update every morning, 30 days from today, and ...

巴扎黑 2017-05-17 10:02:35 0  1  877

USDT TRC20 transaction failed due to insufficient energy

I try to broadcast some USDT transactions every day, and after a few days, I receive OUT_OF_ENERGY messages for some transactions. I make some trades every day, sometimes I make about 30 trades. First, I tried staking about 20kTRX to gain energy and bandwidth, but it was not enough. When I triggered...

P粉412533525 2023-12-24 20:46:43 0  1  1002

Why is it always an error 404?

<?php$shouji ='Sell yourself and buy an apple';$str = "$shouji Why not?";echo $str?>

帅气的牛先生 2019-03-29 16:05:59 0  3  1055

python3.x - How to run python script on cloud server?

I want to put the foreign exchange automatic trading python script I made on the cloud server for testing. Since I have never used it before, and I just simply run the script, I would like to know how to operate it. Is it just like doing it on my own computer? Thanks

为情所困 2017-05-18 10:51:04 0  1  771

linux - How to implement more stable scheduled tasks in node.js

I hope that the node program can perform different operations at different fixed time points every day. How to achieve this? The financial business scenario should be similar, right? For example, Yu'E Bao can be bought and sold at any time. The calculation of principal and interest is implemented by...

过去多啦不再A梦 2017-05-27 17:44:44 0  4  691

What is the solution to loop nesting with an uncertain number of levels in PHP?

Problem description: The following numbers are all passed parameters 1. Give an unknown number of product price ranges and the maximum quantity that can be sold, the lowest selling price, the highest selling price, and the largest quantity. Product A 1105 1115 29 Product B 1605 1620 33 Product C 200...

你心哥我啦 2021-05-21 20:33:26 0  1  904

Book

Teacher, which one is better, buying books or opening a VIP?

平凡 2018-09-10 16:50:34 0  2  1366

linux - How to pause a running python script

I installed a Linux system called debian and python3 through gnuroot on my Android phone to run the automatic trading script 24 hours a day. But when I want to pause the running python script, what should I do? Is to directly stop it with the command and then run it again when needed. , or find a so...

高洛峰 2017-06-07 09:24:22 0  1  1387

java - How to implement: when entering a list page, different products are displayed every time? Details enter

For example, a mall has 10 merchants, each of which has many products. The demand is: every time the user refreshes the page, he will see different products from different merchants. It is not as simple as random product IDs, because it may be repeated. How to implement it specifically?

仅有的幸福 2017-05-17 10:08:10 0  1  586

Is there a solution to the problem that the scroll bar on the left side of the modal box returns to the top when an item in the accordion is clicked?

On the initial load, if I click on the "Sales" accordion and then click on "Reporting and Forecasting Total Sales", the scrollbar for the markup jumps to the top of the ng-container marked for reporting and forecasting total sales below the UI Is the HTML for the total report and...

P粉398117857 2023-09-16 21:09:42 0  1  580

"Show sales badge without showing sales price on Woocommerce"

I'm developing woocommerce on WordPress and I want to make some sales badges but ignore the sales price (only the regular price). I have tried several times but the "promotion badge" only appears when I put the number on the promo price of the product I use the following code add_filter('w...

P粉590929392 2024-01-07 13:59:13 0  1  675

How to get the correct sum of two columns using case when

I'm developing a program that will track the units sold by a salesperson, which can be either a full deal (1) or a half deal (0.5). What I need to do is find a way to get the sum of all transactions and half of the transactions grouped by salesperson ID. This is the database structure: idsalesperson...

P粉103739566 2024-03-19 23:49:06 0  1  470

thinkphp3.2.3 connects with the new version of Alipay

Please refer to the demo download here: http://www.erdangjiade.com/php/524.html The effect picture is as follows: The new version of Alipay signature verification is encapsulated, and only needs to be configured and called public function pay(){ //Merchant order number, the only order number in the...

二当家的 2017-08-31 18:25:04 0  2  1515

I want to send two different emails to two different addresses using php in the same function

So when a product is ordered from a merchant registered on my website, I want my code to update them while also sending the same email to our company email address. When the code is sent to our company email address, no email is sent to the merchant. Can you tell me what could be wrong? Thanks. Note...

P粉340264283 2024-04-04 22:17:09 0  1  1727

php - where to find cheap servers. . .

Where can I buy cheap servers? . Which server has a discount? Practice your hands. .

世界只因有你 2017-06-05 11:07:01 0  3  696

Are there any books on js simplified version with learning videos?

I know a little bit about js, but I'm just not proficient in it. I want to buy a book like this to learn about it.

随风而去随风而飘 2017-11-29 22:28:58 0  1  1116