How to detect a column included in WHERE clause but used in indexed? Little Background: Until the time the table has few 开发者_JAVA百科number of records things will be okay, once it started having
I have this table: CREATE TABLE `point` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `siteid` INT(11) NOT NULL,
I\'ve got a Doctrine table with the Searchable behavior enabled. Whenever a record is created, an index is made in another table. I have a model called Entry and the behavior automatically created th
I need to sort an array that can look like this: $array[4][0] = array(\'id\' => 1, \'value\' => 2);
I was watching the Profiler on a live system of our application and I saw that there was an update instruction that we run periodically (every second) that was quite slow. It took around 400ms every t
What is cardinality in MySQL? Please explain in simple, non-technical language. If a ind开发者_如何学JAVAex detail of any table displays the cardinality of a field say group_id as 11, then what does
Whats query can be used to get the details of Indexes of any table? I need this to find out prima开发者_StackOverflow社区rykey/autoincremented value of any table..
I am creating a list .. the elements of the list are drawn from sqlite database .. I populate the list using ArrayList and ArrayAdapter ...upon clicking the items on the list I want to be able to fire
After reading and commenting on this question PHP Library for Keeping your site index by Google, Bing, etc, I was curious to look at StackOverFlow\'s sitemap.This returned a 404 error which I am guess
I am using Hibernate to talk to my DB. I have one field that is an enumeration and it is going to be used in a slow query. So I\'d like to index it. I\'ve put the following annotations on the field:
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