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NULL is a special marker in databases indicating a "missing value." While it may seem simple, it introduces unique challenges in queries, indexes, and...
This guide offers a concise look at how PostgreSQL deals with the absence of the ISNULL function, introducing alternatives like COALESCE and CASE. In...
In this blog, we’re walking you through the upsides and downsides in NULLs in MySQL – have a read! Tools used in this tutorial DbVisualizer - top...
Let’s figure out whether or not the ISNULL PostgreSQL function exists, why, and explore its alternatives to get the same functionality. Tools used in...
NULL values are one of the most frequent frenemies of almost all database administrators. For many, they’re simply a symbol that no value exists in a...
