firestore: Is it faster to retrieve documents by id or by query?

My collection of documents has an id (of course), but also has a field that holds the same id. Question: Is it faster to retrieve the document by id collection.doc(id).get().then(....) or by querying collection.where('id','==',id).get() .then(...) I just refactored my function code. I used to use qu...

P粉291886842 2023-09-14 08:54:32 0  1  433

Input file retrieves image_URL record back into database

I'm trying to edit smartphone details and all input fields have dataRequired() validation. However, the input file for images is empty by default. When I try to edit other fields, such as brand, I also have to enter the input file for the image in order to edit successfully. How can I have the input...

P粉277305212 2024-02-25 21:59:33 0  1  442

Retrieve nested related values ​​in mysql

I'm trying to retrieve related values ​​based on multiple entries in a database. I'm very new to MySQL when it comes to using JOINs etc and I'm trying to avoid involving PHP unnecessarily. When I say "retrieve nested related values", look at this example: "Person"table"Langu...

P粉007288593 2024-04-04 17:29:06 0  2  500

An error was encountered while trying to retrieve the latest version of a package from search.maven.org

"Error: Unable to retrieve data from Maven repository" while retrieving latest version number from search.maven.org. The following php code was written which I will modify for all other packages. <?php$url="https://search.maven.org/solrsearch/select?q=a:angus-activation-project&...

P粉461599845 2024-04-05 12:11:23 0  1  1744

Retrieving and displaying images from a database in a JSP page: a step-by-step guide

How to retrieve and display images from database in JSP page?

P粉191610580 2023-08-27 21:30:22 0  1  725

File permission setting test failed

File permission setting test failed

vous 2018-05-08 15:36:14 0  1  1129

php - How to recursively get all comments of an article? ? ?

Table structure: comment_id comment Idarc_id article IDcontent content parent_id comment parent node I want to get such a data structure recursively: $arr=array({code...})

phpcn_u1582 2017-06-30 09:53:28 0  1  964

Golang GORM implements data retrieval and join table query of many-to-many relationships

I'm using golang1.19 and ORM as GORM. I need to retrieve products using category ID. The product table and category table are bound to a many-to-many relationship. So the third table is product_categories. What I need to do is when a get request comes with a category id, I need to retrieve the produ...

P粉908138620 2024-01-04 13:57:53 0  1  469

vim file type detection error

vim turns on file type detection, that is, "filetype on", and turns off vi compatibility, "set nocompatible". According to the documentation: Detail: The ":filetype on" command will load one of these files:Mac $VIMRUNTIME:filetype.vimUnix $VIMR..

phpcn_u1582 2017-05-16 16:42:11 0  2  1141

Retrieve the total number of shipments for each product on ShippingBo

Is it possible to retrieve the total number of shipments for each product on ShippinBo via API? I develop a platform for reordering suppliers and I need this data for new functionality. Get the total number of shipments for each product on ShippinBo through API

P粉511896716 2023-09-04 14:18:23 0  1  476

Payload retrieval methods and techniques

I'm using PHP, ExtJS and ajaxstore. It does not send data via POST or GET when creating, updating and deleting. In the Chrome console I can see my outgoing parameters as JSON in the "Request Payload" field. $_POST and $_GET are empty. How to retrieve it in PHP?

P粉176203781 2023-08-22 12:25:46 0  2  564

Retrieve data from Laravel model and generate Spatie/Icalendar

I tried retrieving the data from the model and then rewriting it into the appropriate format for SpatieIcalendar, but it doesn't work since there are multiple events and not just a single event. I've tried many different solutions but haven't found one that works. Please, how would you iterate over ...

P粉312195700 2024-01-16 14:41:59 0  1  490

Unable to retrieve data using postgres and nodeJS

This is how I set up the following files: index.jsconstexpress=require('express')constapp=express()constport=8000constexpense_model=require('./expense_model')app.use(express.json());app.use (function(req,res,next){res.setHeader('Acce

P粉445714413 2024-04-03 11:13:03 0  1  388

vim cannot syntax check js files

I don’t know what’s going on, but the normal syntax check cannot be performed in the js file. This is a problem that occurred after installing this plug-in ruanyl/vim-eslint. After I uninstalled this plug-in, the normal syntax check can be performed. Does this require any additional configuration? ,...

大家讲道理 2017-05-16 16:38:09 0  2  682

mongodb - mongo全文索引

mongo的name字段需要多长的情况下才需要加上全文索引。

淡淡烟草味 2017-05-02 09:21:58 0  2  649

PHP Tutorial: How to retrieve data based on a unique value of a column in a database

I want to retrieve the values ​​of NEW_COLUMN_1 and NEW_COLUMN_2 columns from the database using the different CR numbers in the NUMBER column in the following function: functionretrieveDistinctFilePaths(array$distinctCRNumbers,$database){$filePaths=[];echo"";print_r($distinctCRNumbers) ;e...

P粉764785924 2023-08-14 11:13:09 0  1  470

How to retrieve values ​​of unselected rows in HTML data table using jquery

I'm trying to get the value of all rows where the button was not clicked. For example, when I click a button on the first row, I want to retrieve the value of the row that was not clicked. vartable=document.getElementById("all_department");if(table!=null){for(vari=0;i<table.rows.length;...

P粉431220279 2024-04-05 09:26:49 0  1  1566

Retrieve result set metadata from the database without knowing the SQL statement

I'm using PHP and HTML and created a database. I'm connected to the database. I'm wondering if there is a way to retrieve data from a database by asking the user to enter an entire SQL statement. I'm really interested in how to get the data without saying $row['id'] For the sake of argument, they wo...

P粉506963842 2023-09-04 14:18:17 0  1  550

browsersync can only detect one HTML file at a time?

Browsersync can only detect one HTML file at a time? When there are multiple HTML files in a folder, it will only prefer the first one created? ? ? What I see when I run it temporarily is like this~ Can anyone help me with the answer?

娴@.@微梦 2018-04-25 18:27:46 1  1  1590

How to search files in a folder by content with VIM?

Vim can use regular expressions to search in a file. Is there a way to search for matching files in a folder?

怪我咯 2017-05-16 16:42:54 0  5  962