Check out example codes for ""SET SQL_AUTO_IS_NULL = 0" query problem". It will help you in understanding the concepts better.

Code Example 1

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mysql> set @@sql_auto_is_null:=default;
Query OK, 0 rows affected (0.00 sec)

mysql> select @@sql_auto_is_null,@@version;
+--------------------+-----------+
| @@sql_auto_is_null | @@version |
+--------------------+-----------+
|                  0 | 5.8.0-m17 |
+--------------------+-----------+
1 row in set (0.00 sec)

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