I need to join 3 tables a,b,c and I know that only one row from the table most to the left has to appear in the end result.
I have the following query which is used in order to do an auto-complete of a search box: SELECT *, MATCH (screen_name, name) AGAINST (\'+query*\' IN BOOLEAN MODE) AS SCORE
This question already has answers here: Closed 11 years ago. Possible Duplicate: Why does MYSQL higher LIMIT offset slow the query down?
I have Java EE application, where I have list of groups. I want to display number of items in every group, so I do:
I am starting to look at the query optimizer in SQL server 2008 and I’m particularly interested in the statistics profile that can be shown for a query. So far i understand that the result shown for
So I have a scenario where there are 1-8 people that i need to query up to 3 things they \"liked\" per person.I have the query开发者_StackOverflow中文版 set up as
I\'m trying to retrieve some most occurring values from a SQLite table containing a few hundreds of millions of rows.
Consider this query: SELECT DISTINCT (linkindex_tags.link_id) , links_sorted.link_title , links_sorted.link_url
I am relatively new to rails. I understand that rails lets you play with your database values with much ease but I am a little bit in the blind about what kind of approach is more energy efficient on
This recent question had me thinking about optimizing a category filter. Suppose we wish to create a database referencing a huge number of audio tracks, with their release date and a list of wor开发
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