here it is SELECT tbl_rls . * , ( SELECT count( * ) FROM `comments` WHERE `post_id` = `tbl_rls`.`id` ) AS `t_comments`
The following query performs badly because of a full non-clustered index scan of 6.5 million records in P4FileReleases followed by a hash join.I\'m looking for possible reasons the optimizer picks a s
What is \'correct\' query to fetch a cumulative sum in MySQL? I\'ve a table where I keep information about files, one column list contains the size of the files in bytes. (the actual files are kept o
I have the following lambda expression: IEnumerable<Order> query = _ordersRepository.GetAllByFilter(
Problem In the following query, plr_stations is called twice: once to limit the WHERE clause; and once to count the number of results it returned.
Is there anyway to prioritize or throttle a query at all in MySQL? I\'m a DBA on a server that sees a lot of unoptimized queries come into the开发者_StackOverflow server and they just destroy the CPU
The following query works, but its very slow for 10 records (2 seconds). The profiling says its creating a tmp table, but I\'m not sure why.
I have several tables I need to query in order to get all the rows for a certain user. The tables basically look like this
We are trying to run a query to get all unpaid invoices.When I run the query it hangs our whole system.I am just wondering if there is a way I can make this more efficent.SQL isn\'t my strong point.
Background: entities tables currently开发者_运维知识库 has 14,111 records articles table currently has 5211 records
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