RAC对单实例DG redo大小日志修改
解决思路是:先备库增加standby redo删除老standby redo,然后主库增加standby redo删除老standby redo,主库增加新redo删除老redo,最后备库库增加 redo删除老redo。
查看主库redo日志信息:
SELECT a.group#, a.thread#, a.bytes / 1024 / 1024 "size_mb", a.members, a.status, b.MEMBER FROM v$log a, v$logfile b where a.group#= b.group# and b.TYPE='ONLINE' ORDER BY a.GROUP#; GROUP# THREAD# size_mb MEMBERS STATUS MEMBER ---------- ---------- ---------- ---------- ---------------- ------------------------------------------------------------ 1 1 50 2 CURRENT +DATA/mecbs/onlinelog/group_1.261.862339607 1 1 50 2 CURRENT +RECO/mecbs/onlinelog/group_1.redo01.log 2 1 50 2 INACTIVE +DATA/mecbs/onlinelog/group_2.262.862339621 2 1 50 2 INACTIVE +RECO/mecbs/onlinelog/group_2.redo01.log 3 2 50 2 INACTIVE +RECO/mecbs/onlinelog/group_3.redo01.log 3 2 50 2 INACTIVE +DATA/mecbs/onlinelog/group_3.266.862341957 4 2 50 2 CURRENT +RECO/mecbs/onlinelog/group_4.redo01.log 4 2 50 2 CURRENT +DATA/mecbs/onlinelog/group_4.267.862341967
查看主库Standbylog 信息:
SQL> set pagesize 100
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.status,
b.member
FROM v$standby_log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'STANDBY'
ORDER BY a.group#;
GROUP# THREAD# size_mb STATUS MEMBER
---------- ---------- ---------- ---------- ------------------------------------------------------------
5 1 50 UNASSIGNED +DATA/mecbs/onlinelog/group_5.269.862401827
5 1 50 UNASSIGNED +RECO/mecbs/onlinelog/group_5.261.862401835
6 1 50 UNASSIGNED +DATA/mecbs/onlinelog/group_6.270.862401861
6 1 50 UNASSIGNED +RECO/mecbs/onlinelog/group_6.262.862401871
7 1 50 UNASSIGNED +DATA/mecbs/onlinelog/group_7.271.862401977
7 1 50 UNASSIGNED +RECO/mecbs/onlinelog/group_7.263.862401983
8 2 50 UNASSIGNED +DATA/mecbs/onlinelog/group_8.272.862402121
8 2 50 UNASSIGNED +RECO/mecbs/onlinelog/group_8.264.862402137
9 2 50 UNASSIGNED +DATA/mecbs/onlinelog/group_9.273.862402187
9 2 50 UNASSIGNED +RECO/mecbs/onlinelog/group_9.265.862402189
10 2 50 UNASSIGNED +DATA/mecbs/onlinelog/group_10.274.862402213
10 2 50 UNASSIGNED +RECO/mecbs/onlinelog/group_10.266.862402217
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.status,
b.member
FROM v$standby_log a, v$logfile b
WHERE a.group# = b.group#
7 8 AND b.type = 'STANDBY'
9 ORDER BY a.group#;
GROUP# THREAD# size_mb STATUS MEMBER
---------- ---------- ---------- ---------- ------------------------------------------------------------
5 1 50 UNASSIGNED +DATA/phub/onlinelog/group_5.260.884293665
5 1 50 UNASSIGNED +RECO/phub/onlinelog/group_5.619.884293671
6 1 50 UNASSIGNED +DATA/phub/onlinelog/group_6.272.884293677
6 1 50 UNASSIGNED +RECO/phub/onlinelog/group_6.618.884293683
7 1 50 ACTIVE +DATA/phub/onlinelog/group_7.273.884293689
7 1 50 ACTIVE +RECO/phub/onlinelog/group_7.616.884293695
8 2 50 ACTIVE +DATA/phub/onlinelog/group_8.264.884293703
8 2 50 ACTIVE +RECO/phub/onlinelog/group_8.617.884293707
9 2 50 UNASSIGNED +DATA/phub/onlinelog/group_9.286.884293715
9 2 50 UNASSIGNED +RECO/phub/onlinelog/group_9.615.884293727
10 2 50 UNASSIGNED +DATA/phub/onlinelog/group_10.256.884293735
10 2 50 UNASSIGNED +RECO/phub/onlinelog/group_10.614.884293739
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.members,
a.status,
b.member
FROM v$log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'ONLINE'
10 ORDER BY a.group#;
GROUP# THREAD# size_mb MEMBERS STATUS MEMBER
---------- ---------- ---------- ---------- ---------------- ------------------------------------------------------------
1 1 50 2 CURRENT +DATA/phub/onlinelog/group_1.282.884293611
1 1 50 2 CURRENT +RECO/phub/onlinelog/group_1.624.884293619
2 1 50 2 CLEARING +DATA/phub/onlinelog/group_2.281.884293627
2 1 50 2 CLEARING +RECO/phub/onlinelog/group_2.622.884293629
3 2 50 2 CLEARING +RECO/phub/onlinelog/group_3.620.884293641
3 2 50 2 CLEARING +DATA/phub/onlinelog/group_3.280.884293635
4 2 50 2 CURRENT +RECO/phub/onlinelog/group_4.621.884293661
4 2 50 2 CURRENT +DATA/phub/onlinelog/group_4.266.884293655
取消备库日志应用:
SQL> alter database recover managed standby database cancel;
Database altered.
4.备库standby log 添加:
alter database add standby logfile thread 1('+BACK','+RECO') size 100M;
alter database add standby logfile thread 1('+BACK','+RECO') size 100M;
alter database add standby logfile thread 1('+BACK','+RECO') size 100M;
alter database add standby logfile thread 2('+BACK','+RECO') size 100M;
alter database add standby logfile thread 2('+BACK','+RECO') size 100M;
alter database add standby logfile thread 2('+BACK','+RECO') size 100M;
(由于实验环境DATA磁盘组空间不够,所以添加到BACK磁盘组中)
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.status,
b.member
FROM v$standby_log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'STANDBY'
9 ORDER BY a.group#;
GROUP# THREAD# size_mb STATUS MEMBER
---------- ---------- ---------- ---------- ------------------------------------------------------------
5 1 50 UNASSIGNED +DATA/phub/onlinelog/group_5.260.884293665
5 1 50 UNASSIGNED +RECO/phub/onlinelog/group_5.619.884293671
6 1 50 UNASSIGNED +DATA/phub/onlinelog/group_6.272.884293677
6 1 50 UNASSIGNED +RECO/phub/onlinelog/group_6.618.884293683
7 1 50 ACTIVE +DATA/phub/onlinelog/group_7.273.884293689
7 1 50 ACTIVE +RECO/phub/onlinelog/group_7.616.884293695
8 2 50 ACTIVE +DATA/phub/onlinelog/group_8.264.884293703
8 2 50 ACTIVE +RECO/phub/onlinelog/group_8.617.884293707
9 2 50 UNASSIGNED +DATA/phub/onlinelog/group_9.286.884293715
9 2 50 UNASSIGNED +RECO/phub/onlinelog/group_9.615.884293727
10 2 50 UNASSIGNED +DATA/phub/onlinelog/group_10.256.884293735
10 2 50 UNASSIGNED +RECO/phub/onlinelog/group_10.614.884293739
11 1 100 UNASSIGNED +BACK/phub/onlinelog/group_11.306.886088609
11 1 100 UNASSIGNED +RECO/phub/onlinelog/group_11.548.886088623
12 1 100 UNASSIGNED +BACK/phub/onlinelog/group_12.307.886088647
12 1 100 UNASSIGNED +RECO/phub/onlinelog/group_12.550.886088653
13 1 100 UNASSIGNED +BACK/phub/onlinelog/group_13.289.886088921
13 1 100 UNASSIGNED +RECO/phub/onlinelog/group_13.551.886088931
14 2 100 UNASSIGNED +BACK/phub/onlinelog/group_14.288.886088951
14 2 100 UNASSIGNED +RECO/phub/onlinelog/group_14.553.886088963
15 2 100 UNASSIGNED +BACK/phub/onlinelog/group_15.305.886088979
15 2 100 UNASSIGNED +RECO/phub/onlinelog/group_15.552.886088993
16 2 100 UNASSIGNED +BACK/phub/onlinelog/group_16.304.886089015
16 2 100 UNASSIGNED +RECO/phub/onlinelog/group_16.638.886089027
5.删除备库standby log
SQL> alter database drop logfile group 5;
Database altered.
SQL> alter database drop logfile group 6;
Database altered.
SQL> alter database drop logfile group 7;
alter database drop logfile group 7
*
ERROR at line 1:
ORA-00261: log 7 of thread 1 is being archived or modified
ORA-00312: online log 7 thread 1: '+DATA/phub/onlinelog/group_7.273.884293689'
ORA-00312: online log 7 thread 1: '+RECO/phub/onlinelog/group_7.616.884293695'
SQL> alter database drop logfile group 7;
Database altered.
SQL> alter database drop logfile group 8;
Database altered.
SQL> alter database drop logfile group 9;
Database altered.
SQL> alter database drop logfile group 10;
Database altered.
一边在主库上切换日志,一边在备库上查询那些组UNASSIGNED,然后逐个drop掉:
完成后,再次查询备库standby_log:
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.status,
b.member
FROM v$standby_log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'STANDBY'
ORDER BY a.group#;
GROUP# THREAD# size_mb STATUS MEMBER
---------- ---------- ---------- ---------- ------------------------------------------------------------
11 1 100 UNASSIGNED +BACK/phub/onlinelog/group_11.306.886088609
11 1 100 UNASSIGNED +RECO/phub/onlinelog/group_11.548.886088623
12 1 100 ACTIVE +BACK/phub/onlinelog/group_12.307.886088647
12 1 100 ACTIVE +RECO/phub/onlinelog/group_12.550.886088653
13 1 100 UNASSIGNED +BACK/phub/onlinelog/group_13.289.886088921
13 1 100 UNASSIGNED +RECO/phub/onlinelog/group_13.551.886088931
14 2 100 ACTIVE +BACK/phub/onlinelog/group_14.288.886088951
14 2 100 ACTIVE +RECO/phub/onlinelog/group_14.553.886088963
15 2 100 UNASSIGNED +BACK/phub/onlinelog/group_15.305.886088979
15 2 100 UNASSIGNED +RECO/phub/onlinelog/group_15.552.886088993
16 2 100 UNASSIGNED +BACK/phub/onlinelog/group_16.304.886089015
16 2 100 UNASSIGNED +RECO/phub/onlinelog/group_16.638.886089027
6.主库standbylog添加:
alter database add standby logfile thread 1('+DATA','+RECO') size 100M;
alter database add standby logfile thread 1('+DATA','+RECO') size 100M;
alter database add standby logfile thread 1('+DATA','+RECO') size 100M;
alter database add standby logfile thread 2('+DATA','+RECO') size 100M;
alter database add standby logfile thread 2('+DATA','+RECO') size 100M;
alter database add standby logfile thread 2('+DATA','+RECO') size 100M;
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.status,
b.member
FROM v$standby_log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'STANDBY'
9 ORDER BY a.group#;
GROUP# THREAD# size_mb STATUS MEMBER
---------- ---------- ---------- ---------- ------------------------------------------------------------
5 1 50 UNASSIGNED +DATA/mecbs/onlinelog/group_5.269.862401827
5 1 50 UNASSIGNED +RECO/mecbs/onlinelog/group_5.261.862401835
6 1 50 UNASSIGNED +DATA/mecbs/onlinelog/group_6.270.862401861
6 1 50 UNASSIGNED +RECO/mecbs/onlinelog/group_6.262.862401871
7 1 50 UNASSIGNED +DATA/mecbs/onlinelog/group_7.271.862401977
7 1 50 UNASSIGNED +RECO/mecbs/onlinelog/group_7.263.862401983
8 2 50 UNASSIGNED +DATA/mecbs/onlinelog/group_8.272.862402121
8 2 50 UNASSIGNED +RECO/mecbs/onlinelog/group_8.264.862402137
9 2 50 UNASSIGNED +DATA/mecbs/onlinelog/group_9.273.862402187
9 2 50 UNASSIGNED +RECO/mecbs/onlinelog/group_9.265.862402189
10 2 50 UNASSIGNED +DATA/mecbs/onlinelog/group_10.274.862402213
10 2 50 UNASSIGNED +RECO/mecbs/onlinelog/group_10.266.862402217
11 1 100 UNASSIGNED +DATA/mecbs/onlinelog/group_11.277.886086953
11 1 100 UNASSIGNED +RECO/mecbs/onlinelog/group_11.927.886086965
12 1 100 UNASSIGNED +DATA/mecbs/onlinelog/group_12.282.886086997
12 1 100 UNASSIGNED +RECO/mecbs/onlinelog/group_12.928.886087017
13 1 100 UNASSIGNED +DATA/mecbs/onlinelog/group_13.283.886087033
13 1 100 UNASSIGNED +RECO/mecbs/onlinelog/group_13.929.886087047
14 2 100 UNASSIGNED +DATA/mecbs/onlinelog/group_14.284.886087059
14 2 100 UNASSIGNED +RECO/mecbs/onlinelog/group_14.930.886087067
15 2 100 UNASSIGNED +DATA/mecbs/onlinelog/group_15.285.886087089
15 2 100 UNASSIGNED +RECO/mecbs/onlinelog/group_15.931.886087099
16 2 100 UNASSIGNED +DATA/mecbs/onlinelog/group_16.286.886087115
16 2 100 UNASSIGNED +RECO/mecbs/onlinelog/group_16.932.886087125
alter database drop logfile group 5;
alter database drop logfile group 6;
alter database drop logfile group 7;
alter database drop logfile group 8;
alter database drop logfile group 9;
alter database drop logfile group 10;
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.status,
b.member
FROM v$standby_log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'STANDBY'
9 ORDER BY a.group#;
GROUP# THREAD# size_mb STATUS MEMBER
---------- ---------- ---------- ---------- ------------------------------------------------------------
11 1 100 UNASSIGNED +DATA/mecbs/onlinelog/group_11.277.886086953
11 1 100 UNASSIGNED +RECO/mecbs/onlinelog/group_11.927.886086965
12 1 100 UNASSIGNED +DATA/mecbs/onlinelog/group_12.282.886086997
12 1 100 UNASSIGNED +RECO/mecbs/onlinelog/group_12.928.886087017
13 1 100 UNASSIGNED +DATA/mecbs/onlinelog/group_13.283.886087033
13 1 100 UNASSIGNED +RECO/mecbs/onlinelog/group_13.929.886087047
14 2 100 UNASSIGNED +DATA/mecbs/onlinelog/group_14.284.886087059
14 2 100 UNASSIGNED +RECO/mecbs/onlinelog/group_14.930.886087067
15 2 100 UNASSIGNED +DATA/mecbs/onlinelog/group_15.285.886087089
15 2 100 UNASSIGNED +RECO/mecbs/onlinelog/group_15.931.886087099
16 2 100 UNASSIGNED +DATA/mecbs/onlinelog/group_16.286.886087115
16 2 100 UNASSIGNED +RECO/mecbs/onlinelog/group_16.932.886087125
7.主库添加新的ONLINE REDO LOG:
SQL>alter database add logfile thread 1('+DATA','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 1('+DATA','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 1('+DATA','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 2('+DATA','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 2('+DATA','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 2('+DATA','+RECO') size 100M;
Database altered.
查询添加结果:
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.members,
a.status,
b.member
FROM v$log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'ONLINE'
5 6 7 8 9 10 ORDER BY a.group#;
GROUP# THREAD# size_mb MEMBERS STATUS MEMBER
---------- ---------- ---------- ---------- ---------------- ------------------------------------------------------------
1 1 50 2 CURRENT +RECO/mecbs/onlinelog/group_1.redo01.log
1 1 50 2 CURRENT +DATA/mecbs/onlinelog/group_1.261.862339607
2 1 50 2 INACTIVE +DATA/mecbs/onlinelog/group_2.262.862339621
2 1 50 2 INACTIVE +RECO/mecbs/onlinelog/group_2.redo01.log
3 2 50 2 CURRENT +DATA/mecbs/onlinelog/group_3.266.862341957
3 2 50 2 CURRENT +RECO/mecbs/onlinelog/group_3.redo01.log
4 2 50 2 INACTIVE +RECO/mecbs/onlinelog/group_4.redo01.log
4 2 50 2 INACTIVE +DATA/mecbs/onlinelog/group_4.267.862341967
5 1 100 2 UNUSED +DATA/mecbs/onlinelog/group_5.274.886087389
5 1 100 2 UNUSED +RECO/mecbs/onlinelog/group_5.266.886087403
6 1 100 2 UNUSED +RECO/mecbs/onlinelog/group_6.265.886087423
6 1 100 2 UNUSED +DATA/mecbs/onlinelog/group_6.273.886087413
7 1 100 2 UNUSED +DATA/mecbs/onlinelog/group_7.272.886087433
7 1 100 2 UNUSED +RECO/mecbs/onlinelog/group_7.264.886087441
8 2 100 2 UNUSED +RECO/mecbs/onlinelog/group_8.263.886087483
8 2 100 2 UNUSED +DATA/mecbs/onlinelog/group_8.271.886087455
9 2 100 2 UNUSED +RECO/mecbs/onlinelog/group_9.262.886087513
9 2 100 2 UNUSED +DATA/mecbs/onlinelog/group_9.270.886087497
10 2 100 2 UNUSED +DATA/mecbs/onlinelog/group_10.269.886087541
10 2 100 2 UNUSED +RECO/mecbs/onlinelog/group_10.261.886087553
8.主库删除旧的ONLINE REDOLOG;(
alter database drop logfile group 1;
alter database drop logfile group 2;
alter database drop logfile group 3;
alter database drop logfile group 4;)
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.members,
a.status,
b.member
FROM v$log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'ONLINE'
10 ORDER BY a.group#;
GROUP# THREAD# size_mb MEMBERS STATUS MEMBER
---------- ---------- ---------- ---------- ---------------- ------------------------------------------------------------
5 1 100 2 CURRENT +DATA/mecbs/onlinelog/group_5.274.886087389
5 1 100 2 CURRENT +RECO/mecbs/onlinelog/group_5.266.886087403
6 1 100 2 INACTIVE +DATA/mecbs/onlinelog/group_6.273.886087413
6 1 100 2 INACTIVE +RECO/mecbs/onlinelog/group_6.265.886087423
7 1 100 2 INACTIVE +DATA/mecbs/onlinelog/group_7.272.886087433
7 1 100 2 INACTIVE +RECO/mecbs/onlinelog/group_7.264.886087441
8 2 100 2 INACTIVE +DATA/mecbs/onlinelog/group_8.271.886087455
8 2 100 2 INACTIVE +RECO/mecbs/onlinelog/group_8.263.886087483
9 2 100 2 CURRENT +DATA/mecbs/onlinelog/group_9.270.886087497
9 2 100 2 CURRENT +RECO/mecbs/onlinelog/group_9.262.886087513
10 2 100 2 INACTIVE +DATA/mecbs/onlinelog/group_10.269.886087541
10 2 100 2 INACTIVE +RECO/mecbs/onlinelog/group_10.261.886087553
12 rows selected.
9.备库添加新的ONLINE REDO LOG
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.members,
a.status,
b.member
FROM v$log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'ONLINE'
10 ORDER BY a.group#;
GROUP# THREAD# size_mb MEMBERS STATUS MEMBER
---------- ---------- ---------- ---------- ---------------- ------------------------------------------------------------
1 1 50 2 CLEARING +DATA/phub/onlinelog/group_1.282.884293611
1 1 50 2 CLEARING +RECO/phub/onlinelog/group_1.624.884293619
2 1 50 2 CLEARING +DATA/phub/onlinelog/group_2.281.884293627
2 1 50 2 CLEARING +RECO/phub/onlinelog/group_2.622.884293629
3 2 50 2 CLEARING +RECO/phub/onlinelog/group_3.620.884293641
3 2 50 2 CLEARING +DATA/phub/onlinelog/group_3.280.884293635
4 2 50 2 CLEARING +RECO/phub/onlinelog/group_4.621.884293661
4 2 50 2 CLEARING +DATA/phub/onlinelog/group_4.266.884293655
8 rows selected.
ORA-01275: Operation ADD LOGFILE is not allowed if standby file management is automatic.
SQL> alter system set standby_file_management='MANUAL';
System altered.
SQL>alter database add logfile thread 1('+BACK','+RECO') size 100M;
Database altered
SQL> .alter database add logfile thread 1('+BACK','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 1('+BACK','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 2('+BACK','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 2('+BACK','+RECO') size 100M;
Database altered.
SQL>alter database add logfile thread 2('+BACK','+RECO') size 100M;
Database altered.
10.删除备库旧的ONLINE REDO LOG:
如果日志状态一直是CLEARING,做以下操作:
SQL> alter database clear logfile group 1;
Database altered.
SQL> alter database clear logfile group 2;
Database altered.
SQL> alter database drop logfile group 1;
Database altered.
SQL> alter database drop logfile group 2;
Database altered.
SELECT a.group#,
a.thread#,
a.bytes / 1024 / 1024 "size_mb",
a.members,
a.status,
b.member
FROM v$log a, v$logfile b
WHERE a.group# = b.group#
AND b.type = 'ONLINE'
10 ORDER BY a.group#;
GROUP# THREAD# size_mb MEMBERS STATUS MEMBER
---------- ---------- ---------- ---------- ---------------- ------------------------------------------------------------
5 1 100 2 CURRENT +BACK/phub/onlinelog/group_5.303.886091387
5 1 100 2 CURRENT +RECO/phub/onlinelog/group_5.599.886091395
6 1 100 2 CLEARING +BACK/phub/onlinelog/group_6.302.886091401
6 1 100 2 CLEARING +RECO/phub/onlinelog/group_6.604.886091411
7 1 100 2 CLEARING +BACK/phub/onlinelog/group_7.301.886091425
7 1 100 2 CLEARING +RECO/phub/onlinelog/group_7.603.886091435
8 2 100 2 CURRENT +BACK/phub/onlinelog/group_8.300.886091441
8 2 100 2 CURRENT +RECO/phub/onlinelog/group_8.609.886091449
9 2 100 2 CLEARING +BACK/phub/onlinelog/group_9.299.886091457
9 2 100 2 CLEARING +RECO/phub/onlinelog/group_9.611.886091467
10 2 100 2 CLEARING +BACK/phub/onlinelog/group_10.298.886091479
10 2 100 2 CLEARING +RECO/phub/onlinelog/group_10.612.886091501
12 rows selected.
SQL> alter system set standby_file_management='AUTO' scope=both;
System altered.
SQL> alter database recover managed standby database using current logfile disconnect from session;
Database altered.
---------------------------查看redo日志切换频率--------------------------------------------
Select round(FIRST_TIME, 'DD'), THREAD#, Count(SEQUENCE#) From v$log_history Group By round(FIRST_TIME, 'DD'), THREAD# Order By 1, 2
SELECT trunc(first_time) "Date", to_char(first_time, 'Dy') "Day", count(1) "Total", SUM(decode(to_char(first_time, 'hh34'),'00',1,0)) "h0", SUM(decode(to_char(first_time, 'hh34'),'01',1,0)) "h2", SUM(decode(to_char(first_time, 'hh34'),'02',1,0)) "h3", SUM(decode(to_char(first_time, 'hh34'),'03',1,0)) "h4", SUM(decode(to_char(first_time, 'hh34'),'04',1,0)) "h5", SUM(decode(to_char(first_time, 'hh34'),'05',1,0)) "h6", SUM(decode(to_char(first_time, 'hh34'),'06',1,0)) "h7", SUM(decode(to_char(first_time, 'hh34'),'07',1,0)) "h7", SUM(decode(to_char(first_time, 'hh34'),'08',1,0)) "h8", SUM(decode(to_char(first_time, 'hh34'),'09',1,0)) "h9", SUM(decode(to_char(first_time, 'hh34'),'10',1,0)) "h20", SUM(decode(to_char(first_time, 'hh34'),'11',1,0)) "h21", SUM(decode(to_char(first_time, 'hh34'),'12',1,0)) "h22", SUM(decode(to_char(first_time, 'hh34'),'13',1,0)) "h23", SUM(decode(to_char(first_time, 'hh34'),'14',1,0)) "h24", SUM(decode(to_char(first_time, 'hh34'),'15',1,0)) "h25", SUM(decode(to_char(first_time, 'hh34'),'16',1,0)) "h26", SUM(decode(to_char(first_time, 'hh34'),'17',1,0)) "h27", SUM(decode(to_char(first_time, 'hh34'),'18',1,0)) "h28", SUM(decode(to_char(first_time, 'hh34'),'19',1,0)) "h29", SUM(decode(to_char(first_time, 'hh34'),'20',1,0)) "h30", SUM(decode(to_char(first_time, 'hh34'),'21',1,0)) "h31", SUM(decode(to_char(first_time, 'hh34'),'22',1,0)) "h32", SUM(decode(to_char(first_time, 'hh34'),'23',1,0)) "h33"FROM V$log_historygroup by trunc(first_time), to_char(first_time, 'Dy')Order by 1
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