如何检查我的服务器上的query_cache_type值

Question

我已使用此查询检查了查询缓存的状态SHOW VARIABLES LIKE ‘%query_cache%’;.同样是有任何查询或命令来检查的值query_cache_type.任何帮助将受到高度赞赏.

Answer 1

尝试以下任何一个:

SHOW GLOBAL VARIABLES LIKE 'query_cache_type';
+------------------+-------+
| Variable_name    | Value |
+------------------+-------+
| query_cache_type | ON    |
+------------------+-------+


SELECT * FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='query_cache_type';
+------------------+----------------+
| VARIABLE_NAME    | VARIABLE_VALUE |
+------------------+----------------+
| QUERY_CACHE_TYPE | ON             |
+------------------+----------------+


SELECT @@query_cache_type;
+--------------------+
| @@query_Cache_type |
+--------------------+
| ON                 |
+--------------------+

SELECT @@query_cache_type = 'ON' AS is_it_on;
+----------+
| is_it_on |
+----------+
|        1 |
+----------+