mysql的使用优化问题吗_如何对 mysql 进行优化的问题
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41 天前
@mingszu
+-----------------------+------------+--------------+--------------+----------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+-----------------------+------------+--------------+--------------+----------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| d_lampblack_real_time | 0 | PRIMARY | 1 | id | A | 0 | NULL | NULL | | BTREE | | |
| d_lampblack_real_time | 0 | lampblack_01 | 1 | equipment_code | A | 0 | NULL | NULL | | BTREE | | |
| d_lampblack_real_time | 0 | lampblack_01 | 2 | monitor_time | A | 0 | NULL | NULL | | BTREE | | |
| d_lampblack_real_time | 1 | lampblack_02 | 1 | fs | A | 0 | NULL | NULL | YES | BTREE | | |
| d_lampblack_real_time | 1 | lampblack_02 | 2 | ps | A | 0 | NULL | NULL | YES | BTREE | | |
+-----------------------+------------+--------------+--------------+----------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
5 rows in set (0.00 sec)
現(xiàn)在已經(jīng)把這個(gè)業(yè)務(wù)停了,應(yīng)該看不出來(lái)原因了?;仡^再用了,這邊再看下吧
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