How to optimize tp6 query

When the tp6 model is associated with multiple data tables for query, the query will be very slow. How can I optimize it? Is there any optimization method? Help! ! ! ! !

以后会怎样 2023-11-17 08:50:36 0 0 84

PHP中文网用户-2517107 2023-11-14 23:55:21 0 1 79

Implement filters and pagination using Laravel Eloquent

I'm trying to create an API that will return all customer records from a database. But this provides paging and filtering functionality. , the filter function is an optional query parameter. So it doesn't have to be included in the query parameters. But I'm having problems doing this. This is the in...

P粉010967136 2023-11-12 18:42:35 0 1 310

How to solve /opt/lampp/bin/mysql.server: line 261: log_success_msg: command not found

After installing xampp in my linuxmanjaro, I encountered this error. Previously, even with this error, it worked fine the first time I opened phpmyadmin and executed some queries. But somehow phpmyadmin shows blank screen. How can I solve it? Update: The black screen no longer appears, but the warni...

P粉056618053 2023-11-08 08:46:06 0 1 263

Prevent MySQL from reading when updating

I have two simple queries, one to read the table and one to update the table. How to lock the read of a select query while the update query is running. Now in MySQLInnoDB, I noticed that writes/updates are locked by default, but reads/selects get the old data before the transaction. I tried using a ...

P粉190883225 2023-11-07 18:05:53 0 1 203

Is full count query really that slow on a large MySQL InnoDB table?

We have a large table with millions of entries. Full counting is very slow, see code below. Is this common for MySQLInnoDB tables? Isn't there a way to speed up this process? Even with query caching, it's still "slow". I'd also like to know why the count of the "communication" ta...

P粉291886842 2023-11-07 15:52:43 0 2 236

The title is rewritten as: "Flutter mysql1 received out-of-order packets"

I'm having some issues setting up a connection to my VPS using flutter's mysql1 library. When I execute the query, I encounter this error UnhandledException: Error1156(08S01): Gotpacketsoutoforder. MySQL server version: 8.0.28 This is the service I use to establish a connection to the database. vars...

P粉333395496 2023-11-05 22:34:25 0 1 217

Passing PHP variables to SQL query in oci_parse

I'm passing PHP variables into an OracleSQL query. But it's not treating it properly and giving me ORA errors like - invalid character. I tried escaping the variable to "$sid" which makes the error go away, but the query returns nothing. Is there a way to pass PHP variables to oracle query...

P粉107772015 2023-11-04 12:38:22 0 1 306

Laravel Inertia JS Flash message only displays once

Because InertiaJS does not refresh the same route component, things like flash messages will only be displayed once, no matter how many times you pass the message from the backend. I've tried everything but nothing works, all I need is to be able to trigger the same flash message again after failing...

P粉852578075 2023-11-03 12:33:50 0 1 342

Insert conversion using MySQL

I'm trying to insert a value into a table in MySQL but can't get it to work. I'm using the following query: INSERTintoarticulovalues(32,'Sala',CAST('$10,000.45999'ASDECIMAL(10,5)),40.2399,200.2399,3,'kid3');MySQL shows the following error: 1row(s)affected,1warning (s):1292TruncatedincorrectDE

P粉189606269 2023-11-02 19:47:58 0 2 286

MySQL: How to use CASE with ORDER BY clause

I have a stored procedure that has to return a table after filtering rows based on input. Two of the inputs are sort_column and sort_dir. The query must ORDERBY sort_column in the sort_dir direction (ASC or DESC). I tried the following query without success. The query below has been simplified to in...

P粉463291248 2023-11-01 17:44:15 0 1 171

Identify performance limitations in JavaScript

I'm trying to find the bottleneck in my Javascript. Basically I'm developing a chrome extension written in Javascript which takes 4-5 seconds to perform a task. This task involves a lot of code and using the print statements built into dev tools/chrome doesn't work. The dev tools don't even seem to ...

P粉684720851 2023-10-31 20:47:17 0 1 229

Updating existing codebase to PHP 8.1: Handling non-nullable internal function parameters with Null values

I've just started upgrading my code to be compatible with php8.1. I have a lot of code snippets where I'm passing potential null values to inner functions. if(strlen($row)>0){...} where $row comes from a source that may have null values (such as a query). This may generate a deprecation warni...

P粉344355715 2023-10-31 20:01:48 0 2 222

Why doesn't the MySQLi library natively support named parameters?

Correct MySQLi parameterized query syntax from http://php.net/manual/en/mysqli.quickstart.prepared-statements.php: $stmt=$mysqli->prepare("INSERTINTOtest(id)VALUES(?)") ;$stmt->bind_param("i",$id);But never do this:

P粉024986150 2023-10-31 09:54:43 0 2 213

When using Laravel on Ubuntu, an unsupported property was specified on the PDO object: MSSQL

My UbuntuvagrantLaravelHomestead setup is configured to connect to MSSQL. Randomly, it started throwing the following error on every query that goes into the MSSQL database (on a Windows server). Any ideas? I can't find much information on re:this on Google. I restarted PHP and confirmed that the SQ...

P粉301523298 2023-10-30 23:05:50 0 1 256

Execute multiple MYSQL queries using PHP

I'm trying to run consecutive MYSQL statements using PHP as shown in the code snippet below (it just copies one row to another and renames the id through the tmp table). I'm getting duplicate syntax error messages. I've tried countless iterations. The code looks like the code I've studied in the PHP...

P粉358281574 2023-10-25 11:41:44 0 1 238

Mysql query: reduce value by 1

I want to decrement the value contained in a field (integer or dropdown) by 1. I tried these 3 queries but none of them worked as expected: UPDATE`my_table`SET`my_field`='my_field-1'WHERE`other`='123'UPDATE`my_table`SET`my_field`='my_field'- 1WHERE`other`='123'UPDATE`my_table`SET`my_field`='-1'WHE

P粉217629009 2023-10-25 10:57:45 0 3 289

The rephrased title is: MySQL table name using double quotes

I'm executing a mysql query like this: Select*from "User"; it returns: There is an error in your SQL syntax; check the manual corresponding to your MySQL server version for what to use near "User" on line 1 The correct syntax error is with double quotes ", can I leave the se...

P粉851401475 2023-10-24 22:39:00 0 1 301

Unbuffered queries in MySQLi?

Are MySQLi queries unbuffered? If not, is there a way to perform unbuffered queries, just like non-MySQLimsql_unbuffered_query()?

P粉769413355 2023-10-24 14:58:46 0 2 308

How to create a MySQL stored procedure from PHP?

My attempts to query MySQL from PHP using the create statement of a stored procedure (SP) have failed. Is this impossible? If so, please give an example.

P粉794177659 2023-10-24 11:36:52 0 2 211