Using the from method to find the latest products under each column, why are the results incorrect?

Use the from method to find the latest products under each column, why are the results incorrect? select goods_id,cat_id,goods_name from (select * from goods where 1 order by cat_id asc,goods_id desc)as tep group by cat_id;

P粉441358353 2022-08-09 13:50:58 0  2  753

PHP regional proxy query, how to accurate to the region

Excuse me, Tianjin in the red circle, how to accurately specify Tianjin, Tianjin, Nankai, Tianjin, Tianjin, and Hexi? Such a choice, or 3 drop-down boxes, Nankai, Hexi under Tianjin, but only display some areas under the region, how to implement the front-end interface HTML code<div class="s...

九号球 2020-07-27 14:15:25 0  0  910

Find a modification program that is proficient in PHP, don't bother if you are a novice

Looking for a modification program that is proficient in PHP, novices please do not bother QQ59615113 Looking for a modification program proficient in PHP, novices please do not bother QQ59615113

好米 2020-03-19 23:19:20 0  1  1068

javascript - How to quickly find json data

How to quickly find json data? As shown in the figure below, if the id is known, find the name value

仅有的幸福 2017-05-18 10:47:13 0  3  809

linux - find string in vim

Use vim to view a document and there are the following strings: {code...} How to find the first string that is not complete[13] and complete[3]?

过去多啦不再A梦 2017-06-26 10:49:52 0  3  1512

Prioritize display of full-text search results for "best matches" for exact matches, including join tables

What do I have to change in the query to get an exact match in the first place? For example, anyone enters happy song in the search form, now he will get this output.. happy kids happy days happy people happy songs happy station... This is my query.. SELECT `artist`,`song `,`genre`,`pass`,`id`FROM`s...

P粉002572690 2024-03-29 12:30:39 0  1  436

I used the error found in the query log. When I entered everything correctly and clicked POST /thinkphp/public/index.php/index/user/checklogin.html [ error ] [8] Undefined array index: scheme

I used the error found in the query log. When I entered everything correctly and clicked POST /thinkphp/public/index.php/index/user/checklogin.html[ error ] [8] Undefined array index: scheme

熟悉使用PHP9的Spidey 2018-04-15 20:48:53 0  0  1325

Check login method cannot be found

The inspection found that /index/user/checklogin.html could not be found, something went wrong, the 500 code was copied directly from the teacher.

enchanted 2020-04-02 13:47:36 0  0  1011

javascript - sublime text 3 global search cannot perform fuzzy search

sublime text 3 global search cannot be fuzzy search

高洛峰 2017-06-24 09:44:11 0  2  1201

Why does my computer use localhost to search for php files, but the webpage shows that the webpage cannot be found?

Why does my computer use localhost to search for php files, but the webpage shows that the webpage cannot be found? Can any expert explain it to me?

鼎善装饰贾建英 2018-02-03 21:23:20 0  2  1629

Find elements in two JavaScript arrays

<script>vararray1=['2023-04-05','2023-04-06','2023-04-07'];//array1vararray2=['2023-04-07'];//array2found1=array1 .find((val,index)=>{//Find the date in array1 returnarray2.includes(val);});$('.show').htm

P粉242126786 2023-09-11 19:44:46 0  1  513

Get exact match count in mysql text field

I have a MySql table with text fields. The text field will be populated with a random sequence similar to the following (can be any integer value): 14,4,24,20,34,234,67,4,98,64 There are no leading or trailing commas in the string (text field value). For example, I want to count the total occurrence...

P粉493534105 2023-09-09 10:37:09 0  1  708

javascript - How to use nextElementSibling to find the next node in js

{Code...} 1. Use nextElementSibling to find the next node with the id of dialogArea and modify its value. 2. Only use native js without jquery. 3. The purpose is to use the hidden input as the positioning coordinates to search downwards when the ID and class of the input cannot be obtained under som...

天蓬老师 2017-05-19 10:12:12 0  3  688

javascript - Baidu Maps' own products can provide precise positioning. Why do I have to obtain user consent to obtain precise positioning when I call its public API, and is it so slow?

In the desktop browser, I call the getCurrentPosition() method of new BMap.Geolocation() in the Baidu Map API to obtain the user's current coordinates. The browser needs to ask the user whether to disclose the location information (after all, user privacy is involved). If yes, then The precise coord...

某草草 2017-07-05 11:05:05 0  2  1031

Find matching integers in JSON.

I want to find 123 in a JSON string in MySQL. This is my query: SELECT * FROM `reports` WHERE JSON_CONTAINS(json_data, 123, "$.respCode"); When I run this code, I get the following error: Error code: 3146. Invalid JSON data type in parameter 1 of function json_contains; a JSON string or JS...

P粉252116587 2023-07-25 08:47:02 0  1  524

How to find files named with numbers in Python?

There are the following files: /images/1.png/images/2.png/images/10.png/images/100.png/images/a.png How to find and traverse all files named with numbers? for i in glob.glob(r'/images/[0-9].png'): This can only match 1.png and 2.png.

滿天的星座 2017-06-28 09:23:17 0  1  846