409 questions
I am building an environment to develop the rails application, but when db:create, an error occurred and I cannot create a database.I searched for the error statement, but I don't know how to solve it...
Mysql2::Error:Data too long for column 'hoge' at row1I'm in trouble because I got this kind of error.hoge is text type, so I thought there was no limit...By the way, the data that failed this time was...
Now, I would like to read the data I put in mysql with cakephp in localhost.If the controller is not found for some reason, an error will appear and we cannot proceed. File Name: UsersControllerBy the...
After several days of trial and error, As I can't solve this problem, I thought it might be rude to ask questions here because I'm a beginner and the content is rudimentary.I would appreciate it if yo...
The MySQL nested set model is used to print parent from child but it doesn't workBelow is the table containing the category.Table containing the Below is a query that prints the parent from the child'...
The already created stored procedure, ranking_long, is a newly created stored procedure that only calls it, and by describing it as CALL ranking_long() within its definition:product_id plg_countrank11...
When I run the source code below in Dev C++, I get the following error:How do I resolve this error message?2711 C:\Users\patch\Documents\main.cpp [Error] cannot convert 'char**(MYSQL_RES*) {aka char**...
BackgroundWe have decided to transfer the original system from one server to another.Exportmysqldump-u root-p DBNAME --default-character-set=binary>~/DBNAME.sql importI imported it using phpMyAdmin...
Would it be possible to combine the following two select statements into one?select name, img, price from items where id=:requestselect item_title from categories where id=:requestPlease let me know i...
I'd like to place multiple unique constraints on a single column in Gorm.typeObject structure{ Z string `gorm: unique_index:unique_a;unique_index:unique_b` A string `gorm: unique_index:unique_a` B str...
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