STRICT_ALL_TABLES turns on stricter checking of data values.

This question asks about the STRICT_ALL_TABLES setting in MySQL.
STRICT_ALL_TABLES is a setting that makes MySQL more strict about the data it accepts. This means that if you try to insert data that doesn't fit the column's rules (like trying to put a letter in a number column), MySQL will likely give you an error and refuse to save the data.
So, the answer to this question is True.
STRICT_ALL_TABLES does indeed turn on stricter checking of data values.
Example:
Let's say you have a table with a column called "age" that is defined as an integer.
If STRICT_ALL_TABLES is ON, you wouldn't be able to insert the value "abc" into the "age" column, as it is a string and not an integer.
This helps ensure data integrity by preventing invalid data from entering your database.