Видео ютуба по тегу Sql Query: If Null Then Take Another Column But If Null Again Ignore It

SQL : SQL query to group a column and ignore null values
SQL : SQL query to group a column and ignore null values
SQL IFNULL Function | How to return an alternative value if Column Value is NULL in SQL | #IFNULL()
SQL IFNULL Function | How to return an alternative value if Column Value is NULL in SQL | #IFNULL()
How to Handle Nullable Columns in SQL: ISNULL and WHERE Clause Made Easy
How to Handle Nullable Columns in SQL: ISNULL and WHERE Clause Made Easy
10 NULL values in SQL : How to identify and handle them ?
10 NULL values in SQL : How to identify and handle them ?
How to handle NULL in SQL
How to handle NULL in SQL
SQL | Null Function in SQL | ISNULL | COALESCE | IFNULL | NVL
SQL | Null Function in SQL | ISNULL | COALESCE | IFNULL | NVL
Null Values in SQL - 5 tips in 14 min (IFNULL & COALESCE)
Null Values in SQL - 5 tips in 14 min (IFNULL & COALESCE)