mysql> show DATABASES;
+--------------------+
| Database |
| information_schema |
| mysql |
| performance_schema |
| sys |
4 rows in set (0.11 sec)
mysql> CREATE DATABASE test;
Query OK, 1 row affected (0.03 sec)
mysql> drop database test;
Query OK, 0 rows affected (0.08 sec)
影响mysql性能的主要因素包括磁盘速度和内存大小,SSD远快于HDD
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用户06lgllpdgh
mysql> show DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.11 sec)
mysql> CREATE DATABASE test;
Query OK, 1 row affected (0.03 sec)
mysql> drop database test;
Query OK, 0 rows affected (0.08 sec)