I have a simple MyISAM table resembling the following (trimmed for readability -- in reality, there are more columns, all of which are constant width and some of which are nullable):
I have 2 tables, called login_log, logs the timestamp of each email that 开发者_开发知识库logs into a website.The other table is called admin and contains administration rights.Both have the email as
This is the first time I need to ask question to get my query solved before today previous threads were able to solve my queries.
I\'m struggling with MySQL index optimization for some queries that should be simple but are taking forever. Rather than post the specific problem, I wanted to ask if there is an automated way of deal
A simple query like the one below, properly indexed on a table populated with roughly 2M rows is taking 95 rows in set (2.06 sec) a lot longer to complete than I was hoping for.
I’m struggling to improve a n+1 query on a project I’m working on. I use Hibernate with the model shown below, and I want to express a query to retrieve all items related t开发者_如何转开发o a portf
I have a MySQL query below that I\'m using to get events for my event listings page.The problem is, it\'s taking ~35 seconds to run with the limit 10, and another ~35 seconds to do the COUNT for pagin
I am having problem with changing SQL query to preform faster. I need to retrieve the first and th开发者_Go百科e last row for specific time interval. For example I am looking for first and last date t
Running Postres 7.4 (yep upgrading)开发者_StackOverflow中文版 This is a view query and it\'s used a lot but takes longer than I would like. Any Optimization Suggestions? Any field with a Id in the na
Let\'s say I have a dictionary of 26000 words, 1000 words per letter of the alphabet. If I want to find all the words that have an \'e\' in them, I write:
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