Questions: How can I best write a query that selects 10 rows randomly from a total of 600k? How to&Answers: A great post handling several cases, from simple, to gaps, to non-uniform with gaps. htt...
Questions: I’m trying to find this query where I want to show which hosts uses which template from my Zabbix table. The only problem is that hosts and templates are registered in the same table....
Questions: When issuing a command to MySQL, I’m getting error #1064 “syntax error”. What does it mean? How can I fix it? How to&Answers: TL;DR Error #1064 means that MySQL can...
Questions: Lets say I have three different MySQL tables: Table products: id | name 1 Product A 2 Product B Table partners: id | name 1 Partner A 2 Partner B Table sales: partners_id | products_id 1 2 ...
Questions: I am working with a basic table design for a MySQL database. This database project was given as an idea, mainly aimed for an educational purpose. There are a total of 11 tables which 2 are ...
Questions: Given the following table: id | value -------------- 1 6 2 70 Is there a way to add a column that is automatically calculated based on another column in the same table? Like a VIEW, but par...
Questions: I have this SQL statement: SELECT * FROM `table` WHERE type = 3 OR type = 5 OR type = 4 and table.deleted = 1; I’ve read that I can use parenthesis to accomplish this but I was wonder...
Questions: First let me mention that I’ve gone through many suggested questions and found no relevent answer. Here is what I’m doing. I’m connected to my Amazon EC2 instance. I can l...
Questions: I have a query that inserts using a select: INSERT INTO courses (name, location, gid) SELECT name, location, gid FROM courses WHERE cid = $cid Is it possible to only select “name,loca...
Questions: I have this SQL statement: SELECT * FROM `table` WHERE type = 3 OR type = 5 OR type = 4 and table.deleted = 1; I’ve read that I can use parenthesis to accomplish this but I was wonder...
