Questions tagged [mysql]
MySQL is a free, open-source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL). DO NOT USE this tag for other DBs such as SQL Server, SQLite etc. Those are different DBs that all use their own dialects of SQL to manage the data. Always specify the exact version of the server in the question. Note that configuration/setup-related questions are off-topic on stackoverflow.
mysql
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Recover lost database during mariadb migration
I recently tried to install mediawiki, which had me install mariadb. I already have mysql installed and i ran the following command to install mariadb along with some other packages, taken from the ...
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Issue with Proxysql 2.6 and caching_sha2_password plugin with Percona 8 MySQL cluster
I'm struggiling since 4 days with a strange issue with my ProxySQL+MySQL cluster. I've attached all information that seems relevant to me. I read documentation about how to
import '...
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Find records as And in MYSQL
I want find Students id that , must have (professorId = 3 And courseId = 4) And (professorId = 3 And courseId = 2) And (professorId = 5 And courseId = 8).
sometime these parenthesis is one or more ...
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How do I create CRUD in C++ and connect it to a database. A sample code or link to specific Youtube tutorial will be helpful. Thank you [closed]
I do not how to Create, Read, Update, and Delete database in C++
I tried to install mysql on my computer and I cannot connect it.
My laptop's operating system is windows. I am finding it difficult to ...
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SQL Inner join with where clause works fast with one condition, but not when activeFlag is added
I have a query like
select C.customerId, C.firstName, C.LastName, R.IsActive from
Customer as C
Inner join Rider as R ON R.customerId = C.customerid
where R.rideid = 'xyz' and
R.rideareacode = 'abc' ...
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2
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17
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PHP variable from mysql query in form, when null
I have an html form used to edit a record in a mysql table.
In the case of editing, I prefill the form with the current values for the record as returned by the query, as below:
<INPUT TYPE="...
- 155
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27
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laravel model pages not communicating properly
Working on a client project, hit a setback.
Laravel is reading
"Call to undefined relationship [service_item] on model [App\Models\Service]".
It's simply trying to read data from two ...
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Laravel 10 migration data type ( Exg : text, string, longtext ... Etc.) size list in charector and size(kb pr mb)
Laravel 10 migration data type (Exg: text string longtext etc.)
Data type
size KB (char)
String
xx kb (cab)
Text
xy kb (acb)
Can anyone share this list.
A list of data type and it's sizes ( ...
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Python script gets stuck due to mysql query running for longer period
Mysql version - 5.7
Python version - 3.9.2
I have a dynamic mysql query, which sometimes runs for over 10 mins or something and the mysql's set timeout has been set to around 1 minute. Which is why i ...
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How to merge multi schema data into single schema in mysql?
I have one application with multi-schema and single schema both running on differnt server.We use MySQL database with multiple schemas, each containing several tables, stored procedule and other ...
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docker-compose generated WebAPI container fails to connect to MySql container
I have a Visual Studio .Net 8 Solution that contains a WebAPI backend project. It also contains dockerfile. I have also added a docker-compose to orchestrate the project. Outside of this visual ...
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Unable to Export Data In Hindi (Unicode) Excel using PHP and MySqli
Unable to Export Data In Hindi (Unicode) Excel using PHP and MySqli
Below is the code im using to export data from the database & its working fine but when i try to export hindi entries excel ...
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2
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Select user's high score for each lesson from one table based upon lesson ids in another table
I have a site that has multiple courses and each course has multiple lessons. I would like to select the highest score per LESSON for a given user_id and course_id ordered by lesson_order.
TABLE ...
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insert in to target table and avoid the rows with same set of column value from source to target [duplicate]
-- Create a temporary table with sample data
CREATE TEMPORARY TABLE temp_student (
roll_no INT,
name VARCHAR(50)
);
-- Insert some sample records into the temporary table
INSERT INTO ...
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2
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Connecting to local mysql server from within a docker container [duplicate]
I'm running a go app locally (MacOS Sonoma) that connects to a local mysql server. This works fine when I build the app and run it from the command line. When I create a container and run it - all ...
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