Supabase - equivalent to infinite value

For the authorization flow, in the middleware, I want to match any value in the .eq statement. Ordinary users can only see posts created by themselves. Administrators can see all posts. constuserMatcher=user.role==="admin"?"*":user.id;const{data:post}=awaitsupabase.from("pos...

P粉741223880 2023-08-15 18:53:11 0  2  498

How to get the highest value, lowest value and average value in mysql in php

There are two fields in database table A, one is the category, and the other is the price. How to calculate the highest value, lowest value, and average price of No. 11 in the category in PHP? One category corresponds to N pieces of price data, such as 11, 1002, 12011, 10111, 10111, 5511, 995, 882, ...

给我你的怀抱 2017-05-18 10:51:53 0  3  816

Create table using SELECT syntax in MySQL

I'm wondering how MySQL interprets CREATETABLEEsyntax:IfIwrite:CREATETABLEtbl1(`v1`int, `v2`intCONSTRAINTidxPRIMARYKEY(v1)) SELECTa, bFROMtbl2; does this determine which values ​​go into V1 and which values ​​go into V2? Whether to use designed equipment

P粉715228019 2023-07-20 22:47:01 0  1  583

There is no problem with mysql configuration, but Chinese is not displayed;

mysql> show variables like "%colla%";+----------------------+-----------------+| Variable_name        | Value       &

吴勇文 2018-08-27 23:55:00 0  2  1270

May I ask why the value of $_SESSION['Price'] is always 0?

Please tell me why the value of $_SESSION['Price'] is always 0, that is to say, the total price of clicking to buy and entering the shopping cart is 0. The total price of multiple purchases is 0

Fllllll 2017-11-16 15:26:33 0  1  1324

How to implement decreasing balance using MySQL

How to create a declining balance query using mysql to calculate depreciation in accounting. For example, equipment costs $16,000, has an estimated useful life of 5 years, and has a depreciation rate of 40%. Depreciation year starting book value depreciation rate ending depreciation amount book valu...

P粉473363527 2023-09-01 21:11:53 0  1  666

Get the total return value of the input field method

I'm trying to find the total value entered by the user. Get an aggregate that multiplies a number with its same value letDem200=document.querySelector(".input_200");letoutput200=document.querySelector(".result_200");Dem200.addEventListener('blur',function(){letresult

P粉419164700 2024-04-06 18:19:37 0  1  493

No need to subscribe to Observable, an imperative way to edit reactive form data in Angular

Here's the process I've been using to subscribe and update a reactive form based on observable data. Maybe there is a way to solve the problem without subscribing to the observable and changing the value. @Component({selector:'app-my-component',template:`<form[formGroup]="myForm"><...

P粉587970021 2024-03-29 18:37:15 0  1  355

React - Using useMemo() still causes keyboard input to slow down

I have code like this, which has many input boxes, each input box is used to modify a price value. Since there are a lot of input boxes (3 prices per area and 3 pricing per price), to avoid re-rendering everything every time, I used useMemo on the function that updates the input box value, and in ad...

P粉340264283 2023-09-03 17:16:59 0  1  557

javascript - How to add a function method in validate to determine whether the input has a value?

Now there is a form, which is verified and submitted using validate. The product puts forward a requirement to judge the price value in the chart produced after clicking the "Add Price" button. I looked at the js structure and verified the entire existing form first: the form generated aft...

phpcn_u1582 2017-06-12 09:28:32 0  1  1101

For MySQL, I need a report of rows that deviate more than 1 standard deviation from the mean (expressed as a percentage)

I'm trying to write a MySQL query to count rows that are significantly different from the most common row for each product and report the percentage difference, with less than 100% having a lower price than that product's average price and more than 100% having a lower price than high. Prices less t...

P粉002572690 2023-09-13 22:06:57 0  1  595

python problem of adding txt files at specified lines

1. The data format is very simple. There are four weeks, that is, 28 days of data. There are 144 data every day, and there are 4032 in total, as follows: {code...} Use Sij to represent the i-th observation on the j-th day of the week, where j=1,2,3,4,5,6,7;i=1,2,3,…,144; Now I want to find the value...

高洛峰 2017-05-18 10:58:40 0  1  675

I received the book I sent, free shipping with SF Express! Thanks to php Chinese website

I received the books I sent, free shipping with SF Express. The two practical PHP programming books (basic + advanced) are of high value and are suitable for beginners to veterans. Thank you to PHP Chinese website. Thank you for your hard work, teachers.

资深小白 2018-11-18 14:35:32 0  1  868

Front-end - Safari: The font of the select drop-down box cannot be centered.

Using text-align on Chrome didn't work. Then I tried text-align-last:center and it worked, but it didn't work on Safari. I didn't find anything valuable after searching on Google. Has anyone encountered it?

为情所困 2017-05-16 13:24:50 0  2  1258

Preserving pledge value for future use: A guide

I'm executing a database query and then processing the data in order to produce a single numerical value. This value needs to be used in subsequent arrays. The array definition currently looks like this (below). The problem is that all_kdm_coverage is a promise. But what I need to do is extract the ...

P粉604507867 2024-04-02 17:33:45 0  1  458

What is Hadoop used for, what are its main application scenarios and fields, and what are its core problems to be solved? How can we personally

What is Hadoop used for? What are its main application scenarios and application fields? What are the core problems it mainly solves? What can we personally use it to do to generate value?

人工智能君 2020-09-24 16:31:30 0  1  1578

javascript - When will bootstrap 4 be released?

When will the official version of bootstrap4 be released? Someone once said before that version 4 is not worth learning, and that version 3 is already very good, is that true? 4. Is there really no advantage in building a web page?

我想大声告诉你 2017-05-19 10:29:09 0  2  717

javascript - Questions about apply() and call()

{Code...} Question: 1.sum.apply(this,arguments) refers to the object sum calling the apply method. this refers to callSum() and sum() both running in the same scope. arguments refers to "sum1, sum2"? 2.What is the application value of apply() and call() in the project...

滿天的星座 2017-07-05 11:01:57 0  5  1160

When using BeautifulSoup for web crawling, the find_previous_sibling function does not work properly.

I'm trying to extract several values ​​from the website (https://carone.com.uy/autos-usados-y-0km?p=21). Some work fine, but some don't. For example, I am able to extract the name, model, price and fuel type, but cannot correctly extract the "Year" or "Kilometers" fields, the cod...

P粉187160883 2023-09-19 11:33:53 0  1  706

Laravel Modal does not return data

I don't know why I'm not getting the value from the modal in my Laravel controller. Please check it for me. However, I use the same code for other modes and controllers. It's working and returning the value from the property without any issues. I'm using Laravel8 and php8.1; below is my code. app\Ht...

P粉174151913 2024-03-29 10:31:31 0  1  330