We upgraded mysql from 5.5 to 5.6 but in mysql 5.6 i can't use ALGORITHAM= INPLACE if table build in mysql 5.5 and consist Datetime or time datatype, So i want to rebuild my table in mysql 5.6, is there any other way to rebuild table without using ALTER Command or Copy data from one place to another place.
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I have MySQL and PostgreSQL databases. And I want to migrate only one of 10 tables from MySQL to PostgreSQL with pgloader.
Whole Database migrates with no problem.
Is there any way to take backup of a row and all the records from another table that have relation with it, and restore these in Laravel 5.1?
Or I have to write the code by my-self?
I have imported a database from MySQL 5.6 into MySQL 5.5 (existing database). Now the problem is some stored procedures are taking too much time to execute. So I have checked execution plan by using "Explain" command. I have found some indexes are not working on MySQL 5.5 version but same indexes are working fine on MySQL 5.6 version. Below screenshots are for reference.
MySQL 5.5:
Explain Result MySQL 5.5 Screenshot
MySQL 5.6:
Explain Result MySQL 5.6 Screenshot
Please let me know if I am missing anything or if I need to change anything on MySQL 5.5.
I need to downgrade data from MySQL 5.7 to MySQL 5.1. are there any ways to do in simple steps? (backup and restore )T
There is a solution is step by step like downgrade from 5.7 to 5.6, and then to 5.5.
The Following link says step by step
Make sure you're not using features from 5.7, that are not avaliable in 5.1, for example utf8mb4 encoding (needed for emoji characters)
Then most safe option is to mysql_dump all databases via mysqldump, except for mysql (actually you need mysql.user table, but it's safer to recreate, other settings tables may and most probably will not fit)
Try restoring on staging server first, to see if restored db works the way you expect it to
I do plan to migrate the database from version 5.1 to version 5.6.
I want to do this by using mysqldump:
Export (by mysqldump) data from MySQL DB 5.1 to sql file,
Import (by mysqldump) this sql file that MySQL 5.6 database,
Do not have a complex database that migration can be associated with some risks?
What to look for?
I can not do update database from 5.1 a 5.6, because I can not stop the production base at this point.
Generally speaking it is safe (and supported) to upgrade using mysqldump.
My best suggestion is to use mysqldump from MyQSL 5.6 against the 5.1 server, as newer versions have quite a few fixes to ensure the correct order when dumping foreign keys and other bits and pieces. Your 5.1 version may have these fixes already, but using the newer version won't hurt in any case.
Ensure you run mysql_upgrade after importing the database into 5.6, and then restart the server, as per the MySQL upgrade guide:
http://dev.mysql.com/doc/refman/5.6/en/upgrading.html
Alternatively if you can update in two steps, you can do a in-place binary upgrade by first upgrading to 5.5.x before 5.6.x, ensuring to run mysql_upgrade during both steps.