0
votes
0answers
110 views

how to improve performance of my query it was taking more than one hour in my environment

How can I improve performance of below query? It was running more than one hour to execute in my production environment. Query plan: mysql> explain SELECT transaction_detail.trans_id, ...
2
votes
3answers
452 views

MySQL optimization - year column grouping - using temporary table, filesort

I have a transactions table which is having 600,000 records, I need to list the count for the dashboard on financial year basis. The table used is MyISAM. I tried adding index for the transaction date ...
2
votes
3answers
135 views

How to get all non deleted messages from one user

I have two tables one for messages called default_messages and the other for recipients called default_recipient. This is how SQL for those table looks like: CREATE TABLE IF NOT EXISTS ...