MySQL慢查詢?nèi)罩镜幕臼褂媒坛?/h1>

Usage: mysqldumpslow [ OPTS... ] [ LOGS... ]

Parse and summarize the MySQL slow query log. Options are

 --verbose verbose
 --debug debug
 --help write this text to standard output

 -v  verbose
 -d  debug
 -s ORDER what to sort by (al, at, ar, c, l, r, t), 'at' is default
  al: average lock time
  ar: average rows sent
  at: average query time
   c: count
   l: lock time
   r: rows sent
   t: query time
 -r  reverse the sort order (largest last instead of first)
 -t NUM just show the top n queries
 -a  don't abstract all numbers to N and strings to 'S'
 -n NUM abstract numbers with at least n digits within names
 -g PATTERN grep: only consider stmts that include this string
 -h HOSTNAME hostname of db server for *-slow.log filename (can be wildcard),
  default is '*', i.e. match all
 -i NAME name of server instance (if using mysql.server startup script)
 -l  don't subtract lock time from total time

$ mysqldumpslow.pl slow_log.log

Reading mysql slow query log from slow_log.log
Count: 1 Time=0.00s (0s) Lock=0.00s (0s) Rows=0.0 (0), 0users@0hosts
 C:\Program Files\MySQL\MySQL Server N.N\bin\mysqld.exe, Version: N.N.N-log (MySQL Community Server (GPL)). started with:
 TCP Port: N, Named Pipe: MySQL
 # Time: N-N-08T04:N:N.269315Z
 # User@Host: h5_test[h5_test] @ localhost [::N] Id: N
 # Query_time: N.N Lock_time: N.N Rows_sent: N Rows_examined: N
 use mc_productdb;
 SET timestamp=N;
 SELECT t.customer_id,t.title,t.content
 FROM (
 SELECT customer_id FROM product_comment WHERE product_id =N AND audit_status = N LIMIT N,N
 )a JOIN product_comment t
 ON a.customer_id = t.comment_id