Explain Query (mysql)
EXPLAIN SELECT * FROM `securelufacom`.`users` `t` WHERE `t`.`user_id` IS NULL LIMIT 1
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | Impossible WHERE |
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | Impossible WHERE |