Is it possible to have MySQL return the number of rows looked at? SELECT * FROM `table` WHERE location like '%New York%' LIMIT 10 So in the example above, MySQL might loop through 30 rows in order to return these…
this is part of the database. The extention is .sql -- phpMyAdmin SQL Dump -- version 3.2.0.1 -- http://www.phpmyadmin.net -- -- Host: localhost -- Generation Time: May 20, 2011 at 05:08 PM -- Server version: 5.1.36 -- PHP Version: 5.2.9-2…
i have a chat website and i want the user to have a list available of users sorted by who they last chatted with(like whatsapp). how do i do this? i tried many stack overflow answers but none of them…
On running the following MySQL (5.7.12) UPDATE statement, I get the error "Error Code: 1054. Unknown column 't1.col2' in 'where clause'". How can I rephrase this query such that the columns of t1 are accessible in the subquery? UPDATE MyFirstTable…
Still learning sql, but I'm not understanding how all the data I'm putting in my tables are set to 0 or NULL ?
I have a DETAILS table having detail_id, customer_id and type columns. type can either be 'A' or 'B'. customer can have both type. Goal is to find customer of Type B ONLY. i.e output should not give customer details having…
Building a simple ToDo app in React/NodeJS/Express with MySQL. Users join a group ("family" in the code), then tasks are viewable filtered by familyId. To create a task, I first have a query that finds the user's familyId from the…
I can connect to the MySQL RDS database using IAM authentication from the SQL command line tool. But the same I need to achieve connections with SQL clients like DBeaver or some other clients. I don't have the provision of…
I have a customer table like this id | city | street | street number 1 | Berlin | Bahnhofstraße | 5 2 | New York | Main street | 22 3 | Frankfurt | Bahnhofstraße | 11 4 |…
I'm having trouble understanding my options for how to optimize this specific query. Looking online, I find various resources, but all for queries that don't match my particular one. From what I could gather, it's very hard to optimize a…