Com_* indicators are the counters of the common MySQL data commands such as select, delete, and update. The values show how many times each operation has been performed since the server startup.

Repository files navigation MySQL---Indexing-for-Query-Optimization DAY 21 - Challenge 21 INDEXING FOR QUERY OPTIMIZATION As part of a 75-day data analysis challenge, this work on MySQL covers ...

All MySQL data types can be indexed. Although it can be tempting to create an indexes for every possible column used in a query, unnecessary indexes waste space and waste time for MySQL to determine ...