SET GLOBAL slow_query

[SQL]SET slow_query_log=1

[Err] 1229 - Variable 'slow_query_log' is a GLOBAL variable and should be set with SET GLOBAL

SHOW VARIABLES LIKE '%slow%'
SET GLOBAL slow_query_log=1
SHOW VARIABLES LIKE '%slow%'

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原文地址：https://www.cnblogs.com/rsapaper/p/6201764.html