简体繁体中英

When to add index in a mysql table?

原文 2014-11-28 17:26:08 3 1 mysql/ indexing/ query-optimization

I have a doubt on create table syntax and more in deep when to create index on it.

More in deep I need to create a table by scratch loading ~1 milion record taken from a CSV.

The question is: when should I create an index on the table? Or better: - Do I have to prefer to use INDEX syntax on CREATE TABLE statement and then fill the table or - Do I have to create table, fill it and then use ALTER TABLE ADD INDEX statement?

Which is faster?

1 answers

It is good to create index after storing data (specially large data).

Creating index before, will burden more overhead on DBMS.

When to add an index on a SQL table field (MySQL)?

MySQL: Add index to an active table

add a numeric index in mysql table

Add Index to Existing MySQL Table

MYSQL can't add index to table

How to add index to table view MySQL

MySQL add index on relatively big table (InnoDB)

How to index a MySQL table when both >= and <= is used?

MYSQL: Index keyword in create table and when to use it

Error when creating Index for table Mysql

暂无

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

Related Question When to add an index on a SQL table field (MySQL)? MySQL: Add index to an active table add a numeric index in mysql table Add Index to Existing MySQL Table MYSQL can't add index to table How to add index to table view MySQL MySQL add index on relatively big table (InnoDB) How to index a MySQL table when both >= and <= is used? MYSQL: Index keyword in create table and when to use it Error when creating Index for table Mysql

Related Tags

When to add index in a mysql table?

Question

1 answers

solution1 2 ACCPTED 2014-11-28 17:39:48

solution1
2 ACCPTED 2014-11-28 17:39:48