Sometimes we may often overlook at the difference between these two useful annotations for Hibernate. @NotBlank versus @NotEmpty. Validate that the annotated string is not null or empty. The difference to NotEmpty is that trailing whitespaces are getting ignored. The answer can be found at Hibernate Doc for @NotBlank :)

Do you ever face key could not be imported error during a pacman / yaourt update?

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If we ever wondered what’s the performance of a MySQL query and a SELECT query be more efficient (and hence faster)? MySQL has an embedded profiling feature that we can use from stock MySQL. To enable it, it’s pretty simple: mysql> SET profiling = 1;

A blatant rip-off of StanDesk 2200, with a twist of a lower budget.