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New posts in query-optimization

Does an additional "AND `columnname` LIKE '%'" hurt performance?

mysql query-optimization

Where might I begin on this optimization problem?

"Timeout expired" error, when executing view in SQL Server 2008

Alternative for Find_in_set which can use index

mysql query-optimization

Optomizing MySQL - WHERE and ORDER BY use different columns

Optimize Query - Select COUNT and SUM from the same subquery

Why query in wrapped PLPGSQL function is much slower than itself?

Poor MySQL Join Performance

Postgres slow Trigger performance on DELETE

Most efficient way to search by date in SQL Server database

SQL Error [1114] [HY000]: The table '/rdsdbdata/tmp/#sql161_17a011_a' is full

Can I write this query without CURSORs?

How to Improve UPDATE query result time in Postgresql?

Improve processing time of applying a function over a vector and grouping by columns

Strange behaviour of the SELECT

Searching 15k address rows via autocomplete, MySQL like or full text search?

Prohibit MySQL from using full table scan on a query