sssI currently have an index called SchoolMetrics that aggregates several fields on the School field as the key and produces documents like this:
i have a table that stores about 50k rows and here\'s my query : select * from video where status = 1 and filter = 1 and category = 4
i\'m working on a gwt project, that uses mongoDB as database, and morphia framework to work with mongodb.
If I have a table that has a primary key and a foreign key, and searches are frequently done with queries that include both (...WHERE primary=n AND foreign=x), is开发者_如何学Python there any performa
Been searching for a solution for a while now, go to (1) or (2) to skip description, first i will explain the situation.
I have a table with 20 or so columns. I have approximately 7 non-clustered indexes in that table on the columns that users filter by more often. The active records (those that the users see on their s
For MSSQL 2008 R2 database what values need t开发者_如何学Co be selected minimum to find required indexes when profiler trace given to the database engine tuning advisor ?
I need to create a table containing two attributes: id and author. These two attributes form the composite key. Moreover I need to perform an index search on the author field.
I try to found solution to improve phpbb3 new message indexing. I have about 10000 messages on my forum, and each new message adds VERY long time (20-30 sec). I\'ve checked mysql_slow.log and found lo
I have to re-architect the index structure because of previously bad index design. I have some 200 tables with a few thousand up to 20 million rows per table.
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