--oracle鎖資訊查詢
--查詢oracle會話資訊
select * from v$session t order by t."logon_time";
--查詢oracle等待的會話資訊
select * from v$session_wait t order by t."seconds_in_wait" desc;
--查詢oracle所有的鎖
select * from v$lock t order by t."lmode" desc;
--查詢oracle包含dml的鎖資訊
select * from v$locked_object t;
--查詢oracle對v$lock的格式化檢視
select * from dba_locks t order by t.mode_held;
--查詢oracle程序資訊
select * from v$process t;
--查詢oracle執行過的sql語句
select * from v$sql t;
select * from v$sqlarea t order by t."first_load_time";
--查詢oracle死鎖程序與解鎖語句
select t1."sid",
t1."serial#",
t2."oracle_username",
t2."os_user_name",
t3.object_name,
t2."locked_mode",
'alter system kill session ''' || t1.sid || ',' || t1.serial# || '''' as freesql
from v$session t1, v$locked_object t2, dba_objects t3
where t1."sid" = t2."session_id"
and t2."object_id" = t3.object_id;
--殺掉鎖表程序：如有記錄則表示有lock，記錄下sid和serial#，將記錄的id替換下面的738,1429，即可解除lock
--alter system kill session '434,45624';
--查詢oracle正在執行的sql語句及執行該語句的使用者
select t2.sid as oracleid,
t2.username as oracle使用者,
t2.serial#,
t1.spid as 作業系統id,
t2.paddr,
t3.sql_text as 正在執行的sql,
t2.machine as 計算機名,
t2."status"
from v$process t1, v$session t2, v$sqlarea t3
where t1.addr = t2.paddr
and t2.sql_hash_value = t3.hash_value
and t2."status" = 'active'
order by t2.username;
--查詢oracle正在執行的sql
select t1.serial#,
t1.osuser as 電腦登入身份,
t1.program as 發起請求的程式,
t1.username as 登入系統的使用者名稱,
t1.schemaname,
t2.cpu_time as 花費cpu的時間,
t1.status,
t2.sql_text as 執行的sql
from v$session t1, v$sql t2
where t1.sql_address = t2.address
and t1.sql_hash_value = t2.hash_value
and t1."status" = 'active'
order by t2.cpu_time desc;
--查詢oracle鎖定表
select t1.sid,
t1.serial#,
t1.username,
t1.schemaname,
t1.osuser,
t1.process,
t1.machine,
t1.terminal,
t1.logon_time,
t2."lmode",
t2.type
from v$session t1, v$lock t2
where t1.sid = t2.sid
and t1.username is not null
order by t2."lmode" desc;
--查詢oracle鎖
select t1.username as user_name,
t3.object_name as object_name,
t2.type as lock_type,
t2.lmode,
t3.owner,
t2.sid,
t1.serial# as serial_num,
t2.id1,
t2.id2,
t1.paddr
from v$session t1, v$lock t2, sys.dba_objects t3
where t1."sid" = t2."sid"
and t2."id1" = t3.object_id
and t3.owner <> 'sys'
order by t3.owner, t3.object_name;
--查詢oracle死鎖
select t1.session_id sid,
t3.serial#,
t1.locked_mode,
t1.oracle_username,
t1.os_user_name,
t3.machine,
t3.terminal,
t2.object_name,
t3.logon_time
from v$locked_object t1, all_objects t2, v$session t3
where t1.object_id = t2.object_id
and t1.session_id = t3.sid
order by sid, t3.serial#;
--查詢oracle所有鎖資訊
select t1."type",
t1."lmode",
t2."serial#",
t2."osuser",
t2."username",
t2."schemaname",
t3."cpu_time",
t2."status",
t3."sql_text"
from v$lock t1, v$session t2, v$sql t3
where t1."sid" = t2."sid"
and t2."sql_address" = t3."address"
and t2."sql_hash_value" = t3."hash_value"
order by t1."lmode" desc;
--查詢sql和對應的鎖資訊
select t1.sid, t1.serial#, t1.username, t1.event, t2.sql_text, t3."lmode"
from v$session t1, v$sql t2, v$lock t3
where t1.prev_sql_id = t2.sql_id
and t1.sid = t3.sid
and t2."sql_text" like '%select * from sms for update%';
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