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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

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CSS Grid: Create new row when child content overflows column width

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PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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How to solve accessviolation

Course Introduction：Solutions to accessviolation: 1. Check pointers and references; 2. Avoid using wild pointers; 3. Memory management; 4. Array out of bounds; 5. Check calling convention and stack settings; 6. Debugging tools; 7. Code review; 8. Update your development environment; 9. Find similar problems; 10. Avoid direct memory operations; 11. Use exception handling; 12. Consider using other programming languages; 13. Seek professional help.

2023-12-14 comment 0 2831

How to solve accessviolation

Course Introduction：Methods to solve accessviolation: 1. Check pointers and references; 2. Check array out-of-bounds; 3. Check memory allocation; 4. Check thread safety; 5. Use debugging tools; 6. Code review; 7. Update libraries and dependencies. Detailed introduction: 1. Check pointers and references. Access Violation errors are usually related to pointers or references. Make sure that before using pointers or references, they have been correctly initialized and point to a valid memory address. Avoid using null pointers or invalid references; 2. Check if the array is out of bounds, etc.

2023-12-14 comment 0 3688

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