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Learn how to use the JSR223 sampler to store SQL query results into a database table

Please provide step by step process how to connect MySQL database using jsr223 sampler and execute query and store the result in database table? Please provide sample code for this theme

P粉633309801 2023-08-29 22:13:53 0  1  561

After cross-class call, method cannot be found

Do static method overloading to achieve chained access to the database exercise demo5.php references the Query.php class and then accesses the method in Query. The page prompts me that the method 'table' is not found in the Database. The following is the source code. I hope it can help. The first er...

方人胥 2021-06-12 17:16:18 1  2  1205

laravel queue usage problem: multi-database configuration

Using asynchronous queues, when configuring the database, I have two databases, mysql and mysql2. In config/database.php: {code...} I put the jobs table of the queue in mysql2. When adding tasks to the queue, the default connection is mysql. For this database, can I configure config/queue.php...

阿神 2017-05-16 16:49:08 0  1  641

mysql deletes an empty database and reports error Table storage engine for 'proc' doe

I just deleted an empty table and got the error "Table storage engine for 'proc' doesn't have this option." The key is to try a few times and you will succeed! ! ! It will be fine if you delete this database in the future! ! ! !

小鄭同學(xué) 2021-01-13 16:07:51 0  1  1365

PHP documentation for conditional polymorphic calls

For $item, there is a polymorphic recordable relationship. In the database, this is stored in the loggable_type and loggable_id fields in the items table (works in PHP 8+ and Laravel). For each $item within $items, I'm trying to type-hint it.

P粉127901279 2023-08-06 15:31:19 0  1  624

Sum a specific range of numbers in a column using MYSQL

I have a slider that calculates the BPM of a song. Range is 15 to 300bpm. It uses php language to connect to MySql database and when I press edit button I can change its value. For example from 50 to 55bpm. table=users|columns=song_one.

P粉821274260 2023-09-04 19:06:25 0  1  725

Common methods for connecting to MYSQL database with PHP

After configuring a Xiaoniao cloud server and deploying a PHP environment, what are the common methods for connecting to a MYSQL database?

想無(wú) 2021-09-07 13:56:33 0  3  1196

How to export partial rows of a MySQL table from WHERE clause?

How to export certain rows of MySQL table using where clause from PHP script? I have a MySQLsay test and I want to use a PHP script to create an importable .sql file for rows with ids between 10 and 100. I want to create a sql file test.sql which can be imported into a MySQL database. My code: $con=...

P粉054616867 2023-10-21 11:41:17 0  2  805

MySQL: Permanent solution to "Waiting for table metadata lock" issue

My MySQL database serves three web applications as a storage backend. However, I recently encountered the error "Waiting for table metadata lock" permanently. This happens almost all the time and I don't understand why. mysql>showprocesslist->;+------+-----------+------------------+-...

P粉076987386 2023-10-18 21:53:32 0  1  876

php - Question about session storage in database or redis?

I would like to ask, when the session is stored in the database or redis, does it store the sessionID or the sessionID and the corresponding value? For example: $_SESSION['name'] = 'myName'; How to save it in the mysql database. What are the fields in the database table. There is also redis storage....

伊謝爾倫 2017-06-05 11:07:54 0  1  698

How to use mysqli to determine whether a MySQL database exists in PHP?

How to use the mysqli statement in PHP to accurately determine whether a MySQL database exists? In addition, how to determine whether a table in the database exists? In addition, what do the two styles provided in the official PHP documentation mean? Object-oriented style and process-oriented style....

淡淡煙草味 2017-06-14 10:49:52 0  1  1147

Mysql: "The connection attempt failed because the connecting party did not respond properly after a period of time"

I have a project using AspNetMVC4.5.2 and Mysql database. For a few days, my project started getting errors from Mysql. Everything is going smoothly in the project, but whenever I do some operations on Mysql workbench (like indexing or adding rows and .s to any table), my project immediately gets th...

P粉291886842 2023-09-21 14:59:55 0  1  1015

How to insert data from multiple nested lists into multiple rows in the database using a stored procedure

I have a MySql database table that looks like this: id|page_name|language|item_id|item_text This table stores the language based text used for various pages in a web application. I have translated text for multiple languages ??and multiple pages, stored in a JSON file in the following format: [[&quo...

P粉807471604 2023-08-14 19:11:53 0  1  700

Query which table a given value is in

I need some help. In my database I have several tables containing product details, each product has a unique ID. Now I have a given product ID - how do I get the table name of which table this product is stored in since I have different tables in my database? How can I store the table name in a PHP ...

P粉727416639 2023-08-10 14:56:55 0  1  521

Rewrite the title as: Convert php laravel's sql code to postgres format

I'm rewriting a web application written in php and laravel into a JavaScript stack. Currently I'm redesigning my database schema, which seems to be mysql to postgres. I'm a little confused about some of the syntax of the following createtable command publicfunctionup(){Schema::create('sessions',func...

P粉252116587 2024-01-16 13:47:34 0  1  573

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  662

Looking for an efficient way to handle a large number of repeated If statement checks

When I'm trying to create a search tool for a database I created for my undergraduate thesis, I need to do a lot of checking of user-entered values ??and generate and execute appropriate MySQL queries based on those values. An example is as follows: HTML code (partofthewholetable)<trid="tabl...

P粉421119778 2024-04-03 19:20:08 0  1  787

Optimize Laravel Join to retrieve all data in a single row without duplicating tables

I have 4 MySQL tables with Member Deduction Payment Payment Deduction using PHP and Laravel7 Now I want to display single payment and all other deductions for each member continuously. (Assuming one person has only one payment) The database schema is as follows This is the HTML table I want to displ...

P粉410239819 2024-01-16 11:40:46 0  1  588

How to select multiple classes with the same name in JS

I use PHP to dynamically render these lists I get from the database, each list has the same class and since I can't change it, it renders dynamically. I select these classes via JavaScript and create an event on click to open and close them using the hidden class. Now I have a problem, this event wo...

P粉005134685 2024-03-26 17:46:43 0  2  578

How to write in PHP to log in to different pages with different usernames and passwords

As a novice, I originally imagined that when adding a user, I would select the value of value, enter the username and password when logging in, and at the same time determine whether the value of the selected value is 0 or 1. When entering different pages, the name of value saved in the database is ...

TimeLimit 2018-06-17 13:51:17 0  1  1434