怎樣查看mysql的sql執行sql語句

1先通過status命令查看Mysql運行狀態mysql>status;--------------mysqlVer14.14Distrib5.1.73,forredhat-linux-gnu(x86_64)usingreadline5.1Connectionid:113752Currentdatabase:information_schemaCurrentuser:push_user@localhostSSL:NotinuseCurrentpager:stdoutUsingoutfile:''Usingdelimiter:;Serverversion:5.1.73SourcedistributionProtocolversion:10Connection:LocalhostviaUNIXsocketServercharacterset:latin1Dbcharacterset:utf8Clientcharacterset:latin1Conn.characterset:latin1UNIXsocket:/tmp/mysql.sockUptime:22days8hours31min23secThreads:38Questions:1037751897Slowqueries:2356Opens:79836Flushtables:1Opentables:64Queriespersecondavg:537.282--------------在上面顯示列表的最後壹條，我們來查看Slowqueries這壹項的值，如果多次查看的值大於0的話,說明有些查詢sql命令執行時間過長。2)這時再通過showprocesslist命令來查看當前正在運行的SQL，從中找出運行慢的SQL語句，找到執行慢的語句後，再用explain命令查看這些語句的執行計劃。mysql>showprocesslist;+--------+-----------+---------------------+--------------------+---------+-------+-------+------------------+|Id|User|Host|db|Command|Time|State|Info|+--------+-----------+---------------------+--------------------+---------+-------+-------+------------------+|50270|ambari|DataBase-01:41512|ambari|Sleep|23||NULL||50271|ambari|DataBase-01:41511|ambari|Sleep|6||NULL||50272|ambari|DataBase-01:41514|ambari|Sleep|23||NULL||62452|oozie|DataBase-02:42987|oozie|Sleep|25||NULL||63660|ambari|DataBase-01:56052|ambari|Sleep|0||NULL||110404|push_user|localhost:33817|quartz|Sleep|12||NULL||112835|push_user|localhost:46571|hibernate|Sleep|1||NULL||113163|push_user|localhost:56585|hibernate|Sleep|1||NULL||113289|push_user|14.118.132.20:47333|DW|Sleep|628||NULL||113320|push_user|localhost:47428|hibernate|Sleep|3||NULL||113321|push_user|localhost:47429|hibernate|Sleep|3||NULL||113322|push_user|localhost:47430|hibernate|Sleep|3||NULL||113357|push_user|localhost:52337|hibernate|Sleep|3||NULL||113364|push_user|localhost:57206|hibernate|Sleep|3||NULL||113366|push_user|localhost:34813|hibernate|Sleep|1||NULL||113398|push_user|localhost:37382|hibernate|Sleep|1||NULL||113498|push_user|localhost:47626|quartz|Sleep|12717||NULL||113709|push_user|localhost:59382|hibernate|Sleep|1||NULL||113710|push_user|localhost:33627|hibernate|Sleep|1||NULL||113715|hive|DataBase-02:54968|hive|Sleep|2390||NULL||113716|hive|DataBase-02:54969|hive|Sleep|2390||NULL||113717|hive|DataBase-02:54974|hive|Sleep|2336||NULL||113718|hive|DataBase-02:54975|hive|Sleep|2336||NULL||113719|push_user|localhost:48243|hibernate|Sleep|1||NULL||113720|push_user|localhost:48245|hibernate|Sleep|1||NULL||113721|push_user|localhost:48244|hibernate|Sleep|1||NULL||113722|push_user|localhost:48247|hibernate|Sleep|1||NULL||113723|push_user|localhost:48249|hibernate|Sleep|1||NULL||113724|push_user|localhost:48248|hibernate|Sleep|1||NULL||113745|push_user|localhost:50684|hibernate|Sleep|1||NULL||113746|push_user|localhost:50685|hibernate|Sleep|1||NULL||113747|push_user|localhost:50695|hibernate|Sleep|1||NULL||113748|push_user|localhost:50696|hibernate|Sleep|1||NULL||113749|push_user|localhost:50697|hibernate|Sleep|1||NULL||113750|push_user|localhost:50699|hibernate|Sleep|1||NULL||113751|push_user|localhost:50700|hibernate|Sleep|1||NULL||113752|push_user|localhost|information_schema|Query|0|NULL|showprocesslist||113753|push_user|14.118.132.20:28688|DW|Sleep|396||NULL|+--------+-----------+---------------------+--------------------+---------+-------+-------+------------------+38rowsinset(0.00sec)或者通過如下命令查詢:mysql>useinformation_schema;mysql>select*fromPROCESSLISTwhereinfoisnotnull;+--------+-----------+-----------+--------------------+---------+------+-----------+--------------------------------------------------+|ID|USER|HOST|DB|COMMAND|TIME|STATE|INFO|+--------+-----------+-----------+--------------------+---------+------+-----------+--------------------------------------------------+|113752|push_user|localhost|information_schema|Query|0|executing|select*fromPROCESSLISTwhereinfoisnotnull|+--------+-----------+-----------+--------------------+---------+------+-----------+--------------------------------------------------+1rowinset(0.00sec)