I\'ve got a MySQL statement that selects a name and also makes a ranking. SELECT t.name, (SELECT COUNT(*)
Im having trouble getting my head round subqueries in Mysql. Fairly simple ones are ok, and most tutorials I find rarely go beyond the typical:
I have the following code which works FANTASTIC.Except - It is a sub-query to another (final) outer query and when I attempt to encapsulate this as a sub-query it refuses to run.To make it simple, I j
I have an SQL Server 2005 database, and I tried putting indexes on the appropriate fields in order to speed up the DELETE of records from a table with millions of rows (big_table has only 3 columns),
I\'m using .NET 4 and the Entity Framework to construct a simple query.Here\'s the C# code: return Context.Files.Where(f => f.FileHash != 40)
I have one table with some data and I want select newest data for each type... Table: +----+------+------+---------------------+
Can anyone tell me if the following query calls the database multiple times or just once? var bizItems = new
I have 2 columns in an \"entries\" table: a non-unique id, and a date stamp (YYYY-MM-DD). I want to select \"all of the entry id\'s that were inserted today that have never been entered before.\"
I need to do subquery in subquery what causes \"Unknown column \'t1.product_id\' in \'where clause\'\". It\'s on line 7. in my example. How to solve this problem?
I\'m have 5 tables. First products like: id | country_ids | category_ids | users_ids 1| 1,4,6|4,5,6,70| 5,6,9
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