Db_index django

This is not really django specific; more to do with databases. You add indexes on columns when you want to speed up searches on that column.

Typically, only the primary key is indexed by the database. This means look ups using the primary key are optimized.

If you do a lot of lookups on a secondary column, consider adding an index to that column to speed things up.

Keep in mind, like most problems of scale, these only apply if you have a statistically large number of rows (10,000 is not large).

Additionally, every time you do an insert, indexes need to be updated. So be careful on which column you add indexes.

As always, you can only optimize what you can measure - so use the EXPLAIN statement and your database logs (especially any slow query logs) to find out where indexes can be useful.

Source: stackoverflow.com

Similar codes

13 votes117 views6 answers
Character in python
Python
0 vote141 views1 answer
Django sesssion can't works when web app call inside an iframe from other website
Python Django
10 votes134 views2 answers
Python dict print keys
Python
0 vote138 views1 answer
Networkx draw edge description
Python
1 vote110 views1 answer
How to change opencv capture resolution
Python
4 votes114 views3 answers
Python remove characters from end of string
Python
0 vote121 views1 answer
Pandas sep
Python
0 vote112 views1 answer
Pandas csv sum column
Python
2 votes116 views2 answers
Invert y axis python
Python
4 votes123 views3 answers
Plt vertical line
Python