indexing

相关标签：javascript jquery android 多少钱 iPhone

RavenDB Index Querying on Nested Properties

sssI currently have an index called SchoolMetrics that aggregates several fields on the School field as the key and produces documents like this:[详细]

2023-04-07 11:48 分类：问答
Should i use index when using where clause in mysql?

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[详细]

2023-04-07 10:10 分类：问答
How to add indexes in mongoDB project with Morphia framework

i\'m working on a gwt project, that uses mongoDB as database, and morphia framework to work with mongodb.[详细]

2023-04-07 08:54 分类：问答
Is there a performance benefit to creating a multiple index on a primary key + foreign key?

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[详细]

2023-04-07 07:51 分类：问答
SQL Index on Multiple tables, can it be done?

Been searching for a solution for a while now, go to (1) or (2) to skip description, first i will explain the situation.[详细]

2023-04-07 06:44 分类：问答
Table with no more than 30k records needs index rebuilding after a handful of inserts

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[详细]

2023-04-07 05:33 分类：问答
What values need to be least selected to optimize indexes with database engine tuning advisor

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 ?[详细]

2023-04-07 04:38 分类：问答
Slow insertion speed on MYISAM table

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.[详细]

2023-04-07 04:31 分类：问答
phpbb3's slow indexing of new messages

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[详细]

2023-04-07 03:24 分类：问答
Re-architecting MySQL Indexes

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.[详细]

2023-04-07 01:09 分类：问答