I have 2 tables, 'manufacturers' and 'products'. A manufacturer can have multiple products and a product has a 'qty', 'price' and 'cost' field. I've LEFT JOINed them together and can get SUMs on the 'price' and 'cost' fields based on…
i am using this query to get cost of the product select SUM(strg_op.opcost)/ SUM(strg_op.opvalue * 1000) * strg_catgs.Disrate as totalcost from strg_catgs INNER JOIN strg_op on strg_op.ElemID = strg_catgs.elemID and strg_catgs.elemID =( select strg_catgs.elemID where strg_catgs.catID = '13' ) and…
As I have seen here, Beginning with MySQL 8.0.34, the automatic reconnection feature is deprecated. I have a lot of Perl scripts that connect to a MySQL database with something like: my $dbh = DBI->connect( "DBI:mysql:database=$db_name;host=$db_host", $db_user, $db_pass, {'RaiseError' =>…
I'm trying to build a Dockerized Django application with a MySQl database, but am unable to connect to the database when running docker-compose up My Dockerfile is: # Use the official Python image as the base image FROM python:3.10 #…
Assume I have two tables related with one to many: Person: - name - age - phone Attributes: - fk - field - value for example Person: id name age phone 1 John 18 null 2 Sue 22 1234567890 3…
I can't connect to my MySQL server with my CLI! Im trying to connect to my mysql database using c# but i get Object cannot be cast from DBNull to other types. for no reason! using MythicalDash; using MySql.Data.MySqlClient; namespace…
I create one trigger from Mysql and my targer is when has update value of filed extpoint2 trigger will update value of filed left_coin and set value of this to: left_coin + ( new.extpoint2 - old.extpoint2 ); and this is…
how to order by '0057','0058', '1', '2', '3', 'A1', 'A2', 'A3' in sql Can anyone plese give idea to diplay the section data (alpha numeric column) in this below order? Actual 0057 0058 10 11 5 6 A5 A6 Expected…
I am facing quite interesting problem that I cannot solve. Here is the issue. I have my Nest.js project and I am using Sequelize in order to communicate with the database. At some point I decided that I would like…
I am building a custom e-commerce platform for a music store using a client's existing inventory list in which each item has a unique "System ID" (represented by a MySql table inventory). The problem is several "unique" items in the…