MySQL Performance: MySQL/MariaDB Indexes

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Data in a MySQL/MariaDB database is stored in tables. A simple way of thinking about indexes is to imagine an extensive spreadsheet. This type of system is not always conducive to quick searching; that’s where an index becomes essential. If there is no index, then the database engine has to start at row one and browse through all the rows looking for the corresponding values. If this is a small table, then it is no big deal, but in larger tables and applications where there can be tables with millions and even billions of rows, it becomes problematic. As you can imagine, searching through those rows one by one will be time-consuming, even on the latest hardware. The solution is to create an INDEX (or more than one) for your data.

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Remove Permissions for a MySQL User on Linux via Command Line

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Pre-Flight Check
  • These instructions are intended for revoking a MySQL user permissions on Linux via the command line
  • I’ll be working from a Liquid Web Core Managed CentOS 6.5 server, and I’ll be logged in as root.

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Grant Permissions to a MySQL User on Linux via Command Line

Reading Time: 2 minutes

Pre-Flight Check
  • These instructions are intended for granting a MySQL user permissions on Linux via the command line
  • I’ll be working from a Liquid Web Core Managed CentOS 6.5 server, and I’ll be logged in as root.

Continue reading “Grant Permissions to a MySQL User on Linux via Command Line”