How to Insert a NULL Value in SQL
Have you ever scratched your head over NULL values in SQL? You're not alone! Let's dive into the world of NULLs and learn how to insert them like a pro.What the Heck is NULL, Anyway?First things first ...
Blog - functions
Why Does Division Return 0 in SQL?
Unraveling the MysteryHave you ever scratched your head wondering why your SQL division operation keeps spitting out zeros? You're not alone! This quirky behavior has puzzled many developers, but don' ...
NVL function in SQL
The NVL function in SQL is used to substitute a default value instead of a null value. The syntax is:NVL(expr1, expr2) Where expr1 is the value that might be null, and expr2 is the value to replace it ...
COALESCE function in SQL
The COALESCE function in SQL returns the first non-null value in a list. It takes at least two arguments, which can be expressions or column names.It is broadly supported across relational databases l ...
SQL aggregate functions
SQL aggregate functions are used to calculate multiple values in a table column. They allow you to summarize and extract useful information from a data set. Here are some commonly used SQL aggregate f ...
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