Macbook Black Screen (BSOD) Recovery Key Combination – Resetting PRAM & NVRAM

If your Macbook gets stuck at the Black Screen of Death (BSOD), you can try this “magical” key combination to attempt to recover.  This key combo resets the PRAM and NVRAM on the machine, which store basic things like volume, screen resolution & timezone.  Doing this should not cause any loss of your own data …

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MySQL Collation & Case Sensitivity or Insensitivity

When using MySQL (or most any DB really), it’s a good idea to understand about collation: the implications, the defaults, and how to change it. Collation determines how data is sorted and compared in the database. Its essentially a set of rules for the DB to follow when making decisions on said sort and comparison. …

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MySQL List Users Command – How to Show / List All Users in MySQL / MariaDB

In order to list all the configured DB users in a MySQL or MariaDB, you must be logged in as an administrator: /home/grokman grokman@li598-26% sudo mysql -u root -p Then you can issue the command to list all the DB users: select user, Super_priv from mysql.user; So, it should go something like this: Other user …

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