某生產庫standby報警out of sync，版本10204;

登陸standby，嘗試開啟恢復程式，alertlog資訊如下

ALTER DATABASE RECOVER managed standby database disconnect from session

Fri Aug 2 06:23:58 2013

Attempt to start background Managed Standby Recovery process (INTELP)

MRP0 started with pid=18, OS id=77

Fri Aug 2 06:23:58 2013

MRP0: Background Managed Standby Recovery process started (INTELP)

Managed Standby Recovery not using Real Time Apply

MRP0: Background Media Recovery terminated with error 1111

Fri Aug 2 06:24:03 2013

Errors in file /test/d01/app/oracle/admin/intelp/bdump/intelp_mrp0_77.trc:

ORA-01111: Message 1111 not found; No message file for product=RDBMS, facility=ORA; arguments: [49]

ORA-01110: Message 1110 not found; No message file for product=RDBMS, facility=ORA; arguments: [49] [/test/d01/app/oracle/product/10.2.0/db_1/dbs/UNNAMED00049]

SQL> select file#,name from v$datafile order by 2;

FILE# NAME

---------- --------------------------------------------------

49 /test/d01/app/oracle/product/10.2.0/db_1/dbs/UNNAMED00049

primay該檔案路徑為/test/d02/oradata/intelp，而standby該檔案系統已經佔滿，所以才會建立失敗

解決方法

SQL> select status,file#,name from v$datafile where status=’RECOVER’;

RECOVER 47 /test/d02/oradata/intelp/vaultlob27.dbf

RECOVER 48 /test/d02/oradata/intelp/vaultlob28.dbf

RECOVER 49 /test/d06/oradata/intelp/vaultlob29.dbf

RECOVER 50 /test/d01/app/oracle/product/10.2.0/db_1/dbs/UNNAMED00050

SQL> alter system set standby_file_management=manual;

System altered.

SQL> alter database create datafile '/test/d01/app/oracle/product/10.2.0/db_1/dbs/UNNAMED00049' as '/test/d06/oradata/intelp/vaultlob29.dbf';

Database altered

SQL> alter database create datafile '/test/d01/app/oracle/product/10.2.0/db_1/dbs/UNNAMED00050' as '/test/d06/oradata/intelp/vaultlob30.dbf';

Database altered.

SQL> select status,file#,name from v$datafile where status=’RECOVER’;

RECOVER 47 /test/d02/oradata/intelp/vaultlob27.dbf

RECOVER 48 /test/d02/oradata/intelp/vaultlob28.dbf

RECOVER 49 /test/d06/oradata/intelp/vaultlob29.dbf

RECOVER 50 /test/d06/oradata/intelp/vaultlob30.dbf

由於/test/d02以滿，故將datafile 48遷移至其他檔案系統

SQL> alter database create datafile '/test/d02/oradata/intelp/vaultlob28.dbf' as '/test/d06/oradata/intelp/vaultlob28.dbf';

Database altered.

$ rm vaultlob28.dbf

SQL> alter system set standby_file_management=auto;

System altered

此刻重啟備庫恢復程式，問題得到解決

小結

alter database … create datafile的作用

Creates a new empty datafile in place of an old one--useful to re-create a datafile that was lost with no backup.

前提是db開啟歸檔模式且自願資料檔案建立以來的archive log都可用.

該命令透過檢視control file提取出建立檔案的DDL命令，初始化建立該檔案(此刻檔案內容為空)，然後利用archive log重做所有的redo.

可在沒有資料檔案備份時使用。

Session 1

SQL> select OWNER,TABLESPACE_NAME from dba_tables where table_name='TEST';

OWNER TABLESPACE_NAME

------------------------------ ------------------------------

SYS TES

SQL> select file#,name,status from v$datafile where ts#=(select ts# from v$tablespace where name='TES');

FILE# NAME STATUS

---------- -------------------------------------------------- -------

31 /arch/tes.dbf ONLINE

SQL> select * from test;

ID

----------

1

Session 2

SQL> ! rm /arch/tes.dbf

SQL> select * from test;

ID

----------

1

SQL> select file#,name,status from v$datafile where ts#=(select ts# from v$tablespace where name='TES');

FILE# NAME STATUS

---------- ---------------------------------------- -------

31 /arch/tes.dbf ONLINE

SQL> alter system checkpoint;

System altered.

SQL> select file#,name,status from v$datafile where ts#=(select ts# from v$tablespace where name='TES');

FILE# NAME STATUS

---------- ---------------------------------------- -------

31 /arch/tes.dbf RECOVER

SQL> select * from test;

select * from test

*

ERROR at line 1:

ORA-00376: file 31 cannot be read at this time

ORA-01110: data file 31: '/arch/tes.dbf'

Session 1

SQL> oradebug setmypid

Statement processed.

SQL> oradebug event 10046 trace name context forever, level 12;

Statement processed.

SQL> oradebug tracefile_name;

/oralog/d23x/dump/d23x_ora_6669.trc

SQL> alter database create datafile '/arch/tes.dbf' as '/arch/d23x/tes.dbf';

Database altered.

Session 2

SQL> select file#,name,status from v$datafile where ts#=(select ts# from v$tablespace where name='TES');

FILE# NAME STATUS

---------- ---------------------------------------- -------

31 /arch/d23x/tes.dbf RECOVER

Session 1

SQL> recover datafile 31;

Media recovery complete.

SQL> alter database datafile 31 online;

Database altered.

跟蹤檔案

alter database create datafile '/arch/tes.dbf' as '/arch/d23x/tes.dbf'

END OF STMT

PARSE #1:c=10000,e=1672,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=2,tim=44196283624609

BINDS #1:

WAIT #1: nam='control file sequential read' ela= 65 file#=0 block#=1 blocks=1 obj#=37 tim=44196283625438

WAIT #1: nam='control file sequential read' ela= 42 file#=1 block#=1 blocks=1 obj#=37 tim=44196283625563

WAIT #1: nam='control file sequential read' ela= 37 file#=0 block#=15 blocks=1 obj#=37 tim=44196283625646

WAIT #1: nam='control file sequential read' ela= 35 file#=0 block#=17 blocks=1 obj#=37 tim=44196283625740

WAIT #1: nam='control file sequential read' ela= 38 file#=0 block#=77 blocks=1 obj#=37 tim=44196283625889

WAIT #1: nam='control file sequential read' ela= 32 file#=0 block#=79 blocks=1 obj#=37 tim=44196283626055

WAIT #1: nam='control file sequential read' ela= 33 file#=0 block#=1 blocks=1 obj#=37 tim=44196283626401

WAIT #1: nam='control file sequential read' ela= 26 file#=1 block#=1 blocks=1 obj#=37 tim=44196283626480

WAIT #1: nam='control file sequential read' ela= 25 file#=0 block#=15 blocks=1 obj#=37 tim=44196283626544

WAIT #1: nam='control file sequential read' ela= 24 file#=0 block#=17 blocks=1 obj#=37 tim=44196283626610

WAIT #1: nam='control file sequential read' ela= 29 file#=0 block#=24 blocks=1 obj#=37 tim=44196283626684

WAIT #1: nam='control file sequential read' ela= 18 file#=0 block#=79 blocks=1 obj#=37 tim=44196283626745

WAIT #1: nam='control file sequential read' ela= 26 file#=0 block#=1 blocks=1 obj#=37 tim=44196283626903

WAIT #1: nam='control file sequential read' ela= 23 file#=1 block#=1 blocks=1 obj#=37 tim=44196283626970

WAIT #1: nam='control file sequential read' ela= 22 file#=0 block#=15 blocks=1 obj#=37 tim=44196283627030

WAIT #1: nam='control file sequential read' ela= 23 file#=0 block#=17 blocks=1 obj#=37 tim=44196283627113

WAIT #1: nam='control file sequential read' ela= 24 file#=0 block#=77 blocks=1 obj#=37 tim=44196283627186

WAIT #1: nam='control file sequential read' ela= 17 file#=0 block#=79 blocks=1 obj#=37 tim=44196283627267

WAIT #1: nam='control file sequential read' ela= 20 file#=0 block#=24 blocks=1 obj#=37 tim=44196283627332

WAIT #1: nam='control file sequential read' ela= 29 file#=0 block#=367 blocks=1 obj#=37 tim=44196283627426

WAIT #1: nam='control file sequential read' ela= 23 file#=0 block#=77 blocks=1 obj#=37 tim=44196283627495

WAIT #1: nam='control file sequential read' ela= 17 file#=0 block#=79 blocks=1 obj#=37 tim=44196283627572

WAIT #1: nam='Data file init write' ela= 3419 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283636749

WAIT #1: nam='Data file init write' ela= 4381 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283644427

WAIT #1: nam='Data file init write' ela= 4182 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283651921

WAIT #1: nam='Data file init write' ela= 4301 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283659565

WAIT #1: nam='Data file init write' ela= 4062 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283664479

WAIT #1: nam='Data file init write' ela= 4055 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283669311

WAIT #1: nam='Data file init write' ela= 4094 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283674162

WAIT #1: nam='Data file init write' ela= 4071 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283679028

WAIT #1: nam='Data file init write' ela= 4081 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283683898

WAIT #1: nam='Data file init write' ela= 4188 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283688861

WAIT #1: nam='Data file init write' ela= 44 count=1 intr=256 timeout=4294967295 obj#=37 tim=44196283688967

WAIT #1: nam='Data file init write' ela= 7 count=4294967295 intr=32 timeout=2147483647 obj#=37 tim=44196283689007

WAIT #1: nam='control file sequential read' ela= 58 file#=0 block#=1 blocks=1 obj#=37 tim=44196283690203

WAIT #1: nam='control file sequential read' ela= 33 file#=1 block#=1 blocks=1 obj#=37 tim=44196283690311

WAIT #1: nam='control file sequential read' ela= 39 file#=0 block#=15 blocks=1 obj#=37 tim=44196283690394

WAIT #1: nam='control file sequential read' ela= 34 file#=0 block#=17 blocks=1 obj#=37 tim=44196283690485

WAIT #1: nam='control file sequential read' ela= 30 file#=0 block#=24 blocks=1 obj#=37 tim=44196283690588

WAIT #1: nam='control file sequential read' ela= 39 file#=0 block#=77 blocks=1 obj#=37 tim=44196283690706

WAIT #1: nam='control file sequential read' ela= 25 file#=0 block#=79 blocks=1 obj#=37 tim=44196283690819

WAIT #1: nam='control file sequential read' ela= 32 file#=0 block#=905 blocks=1 obj#=37 tim=44196283691031

WAIT #1: nam='control file parallel write' ela= 69833 files=2 block#=80 requests=2 obj#=37 tim=44196283760947

WAIT #1: nam='control file sequential read' ela= 46 file#=0 block#=908 blocks=1 obj#=37 tim=44196283761106

WAIT #1: nam='control file sequential read' ela= 36 file#=0 block#=367 blocks=1 obj#=37 tim=44196283761308

WAIT #1: nam='db file single write' ela= 44 file#=31 block#=1 blocks=1 obj#=37 tim=44196283761429

WAIT #1: nam='control file parallel write' ela= 4405 files=2 block#=18 requests=2 obj#=37 tim=44196283771996

WAIT #1: nam='control file parallel write' ela= 4352 files=2 block#=16 requests=2 obj#=37 tim=44196283776474

WAIT #1: nam='control file parallel write' ela= 3451 files=2 block#=1 requests=2 obj#=37 tim=44196283780057

WAIT #1: nam='control file sequential read' ela= 42 file#=0 block#=1 blocks=1 obj#=37 tim=44196283780156

WAIT #1: nam='db file sequential read' ela= 31 file#=2 block#=29 blocks=1 obj#=0 tim=44196283780925

XCTEND rlbk=0, rd_only=1

EXEC #1:c=70000,e=156982,p=1,cr=0,cu=3,mis=0,r=0,dep=0,og=2,tim=44196283781723

WAIT #1: nam='log file sync' ela= 11 buffer#=3455 p2=0 p3=0 obj#=0 tim=44196283782000

WAIT #1: nam='log file sync' ela= 15580 buffer#=3455 p2=0 p3=0 obj#=0 tim=44196283797710

WAIT #1: nam='SQL*Net message to client' ela= 10 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=44196283802914

*** 2013-08-02 09:30:02.497

WAIT #1: nam='SQL*Net message from client' ela= 614148552 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=44196897951614

XCTEND rlbk=0, rd_only=1

=====================

PARSING IN CURSOR #3 len=37 dep=0 uid=0 ct=35 lid=0 tim=44196897953551 hv=3898622947 ad='a1bc12e8'

ALTER DATABASE RECOVER datafile 31

END OF STMT

PARSE #3:c=0,e=1502,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=2,tim=44196897953539

BINDS #3:

WAIT #3: nam='control file sequential read' ela= 68 file#=0 block#=1 blocks=1 obj#=0 tim=44196897954180

WAIT #3: nam='control file sequential read' ela= 45 file#=1 block#=1 blocks=1 obj#=0 tim=44196897954639

WAIT #3: nam='control file sequential read' ela= 30 file#=0 block#=16 blocks=1 obj#=0 tim=44196897954712

WAIT #3: nam='control file sequential read' ela= 39 file#=0 block#=18 blocks=1 obj#=0 tim=44196897954808

WAIT #3: nam='control file sequential read' ela= 48 file#=0 block#=24 blocks=1 obj#=0 tim=44196897955227

WAIT #3: nam='control file sequential read' ela= 39 file#=0 block#=1 blocks=1 obj#=0 tim=44196897961251

WAIT #3: nam='control file sequential read' ela= 31 file#=1 block#=1 blocks=1 obj#=0 tim=44196897961342

WAIT #3: nam='control file sequential read' ela= 21 file#=0 block#=16 blocks=1 obj#=0 tim=44196897961401

WAIT #3: nam='control file sequential read' ela= 28 file#=0 block#=18 blocks=1 obj#=0 tim=44196897961476

WAIT #3: nam='control file sequential read' ela= 26 file#=0 block#=905 blocks=1 obj#=0 tim=44196897961554

WAIT #3: nam='rdbms ipc reply' ela= 842 from_process=5 timeout=910 p3=0 obj#=0 tim=44196897979541

WAIT #3: nam='control file sequential read' ela= 59 file#=0 block#=1 blocks=1 obj#=0 tim=44196897979836

WAIT #3: nam='control file sequential read' ela= 35 file#=1 block#=1 blocks=1 obj#=0 tim=44196897979937

WAIT #3: nam='control file sequential read' ela= 33 file#=0 block#=16 blocks=1 obj#=0 tim=44196897980013

WAIT #3: nam='control file sequential read' ela= 35 file#=0 block#=18 blocks=1 obj#=0 tim=44196897980212

WAIT #3: nam='control file sequential read' ela= 32 file#=0 block#=905 blocks=1 obj#=0 tim=44196897980319

WAIT #3: nam='control file sequential read' ela= 34 file#=0 block#=908 blocks=1 obj#=0 tim=44196897980419

WAIT #3: nam='control file sequential read' ela= 35 file#=0 block#=24 blocks=1 obj#=0 tim=44196897980632

WAIT #3: nam='db file sequential read' ela= 26 file#=31 block#=1 blocks=1 obj#=0 tim=44196897980851

WAIT #3: nam='control file sequential read' ela= 26 file#=0 block#=905 blocks=1 obj#=0 tim=44196897980961

WAIT #3: nam='db file single write' ela= 861 file#=31 block#=1 blocks=1 obj#=0 tim=44196897981895

WAIT #3: nam='control file parallel write' ela= 3814 files=2 block#=906 requests=2 obj#=0 tim=44196897985795

WAIT #3: nam='control file parallel write' ela= 3017 files=2 block#=17 requests=2 obj#=0 tim=44196897988930

WAIT #3: nam='control file parallel write' ela= 2931 files=2 block#=15 requests=2 obj#=0 tim=44196897991965

WAIT #3: nam='control file parallel write' ela= 2911 files=2 block#=1 requests=2 obj#=0 tim=44196897995027

WAIT #3: nam='control file sequential read' ela= 43 file#=0 block#=1 blocks=1 obj#=0 tim=44196897995118

Recovery target incarnation = 3, activation ID = 0

Influx buffer limit = 12350 (50% x 24700)

parallel recovery setup failed: using serial mode

Start recovery at thread 1 ckpt scn 9149368025750 logseq 6097 block 2117

WAIT #3: nam='rdbms ipc reply' ela= 414 from_process=5 timeout=2147483647 p3=0 obj#=0 tim=44196898034156

WAIT #3: nam='control file sequential read' ela= 65 file#=0 block#=1 blocks=1 obj#=0 tim=44196898041328

WAIT #3: nam='control file sequential read' ela= 35 file#=1 block#=1 blocks=1 obj#=0 tim=44196898041470

WAIT #3: nam='control file sequential read' ela= 36 file#=0 block#=15 blocks=1 obj#=0 tim=44196898041549

WAIT #3: nam='control file sequential read' ela= 33 file#=0 block#=17 blocks=1 obj#=0 tim=44196898041639

WAIT #3: nam='control file sequential read' ela= 38 file#=0 block#=20 blocks=1 obj#=0 tim=44196898041745

*** 2013-08-02 09:30:02.590

Media Recovery add redo thread 1

WAIT #3: nam='control file sequential read' ela= 41 file#=0 block#=1 blocks=1 obj#=0 tim=44196898044162

WAIT #3: nam='control file sequential read' ela= 27 file#=1 block#=1 blocks=1 obj#=0 tim=44196898044254

WAIT #3: nam='control file sequential read' ela= 28 file#=0 block#=15 blocks=1 obj#=0 tim=44196898044321

WAIT #3: nam='control file sequential read' ela= 26 file#=0 block#=17 blocks=1 obj#=0 tim=44196898044391

WAIT #3: nam='control file sequential read' ela= 26 file#=0 block#=20 blocks=1 obj#=0 tim=44196898044470

WAIT #3: nam='control file sequential read' ela= 38 file#=0 block#=21 blocks=1 obj#=0 tim=44196898044555

WAIT #3: nam='control file sequential read' ela= 36 file#=0 block#=77 blocks=1 obj#=0 tim=44196898047079

WAIT #3: nam='log file sequential read' ela= 20 log#=0 block#=1 blocks=1 obj#=0 tim=44196898047485

WAIT #3: nam='log file sequential read' ela= 12 log#=1 block#=1 blocks=1 obj#=0 tim=44196898047535

*** 2013-08-02 09:30:02.598

Recovery of Online Redo Log: Thread 1 Group 1 Seq 6097 Reading mem 0

WAIT #3: nam='recovery read' ela= 3 p1=4294967295 p2=0 p3=2147483647 obj#=0 tim=44196898050323

WAIT #3: nam='control file sequential read' ela= 32 file#=0 block#=1 blocks=1 obj#=0 tim=44196898057057

WAIT #3: nam='control file sequential read' ela= 27 file#=1 block#=1 blocks=1 obj#=0 tim=44196898057133

WAIT #3: nam='control file sequential read' ela= 26 file#=0 block#=15 blocks=1 obj#=0 tim=44196898057198

WAIT #3: nam='control file sequential read' ela= 24 file#=0 block#=17 blocks=1 obj#=0 tim=44196898057263

WAIT #3: nam='log file sequential read' ela= 158471 log#=0 block#=2117 blocks=16384 obj#=0 tim=44196898215840

WAIT #3: nam='control file sequential read' ela= 60 file#=0 block#=1 blocks=1 obj#=0 tim=44196898228411

WAIT #3: nam='control file sequential read' ela= 35 file#=1 block#=1 blocks=1 obj#=0 tim=44196898228548

WAIT #3: nam='control file sequential read' ela= 35 file#=0 block#=15 blocks=1 obj#=0 tim=44196898228627

WAIT #3: nam='control file sequential read' ela= 36 file#=0 block#=17 blocks=1 obj#=0 tim=44196898228771

WAIT #3: nam='control file sequential read' ela= 34 file#=0 block#=24 blocks=1 obj#=0 tim=44196898228887

WAIT #3: nam='db file sequential read' ela= 71 file#=31 block#=1 blocks=1 obj#=0 tim=44196898229031

WAIT #3: nam='db file single write' ela= 902 file#=31 block#=1 blocks=1 obj#=0 tim=44196898230003

WAIT #3: nam='recovery read' ela= 4 p1=4294967295 p2=0 p3=2147483647 obj#=0 tim=44196898230114

WAIT #3: nam='recovery read' ela= 2 p1=4294967295 p2=0 p3=2147483647 obj#=0 tim=44196898230577

WAIT #3: nam='recovery read' ela= 7 p1=4294967295 p2=0 p3=2147483647 obj#=0 tim=44196898242285

WAIT #3: nam='recovery read' ela= 1 p1=4294967295 p2=0 p3=2147483647 obj#=0 tim=44196898242443

WAIT #3: nam='recovery read' ela= 2 p1=4294967295 p2=0 p3=2147483647 obj#=0 tim=44196898243686

WAIT #3: nam='recovery read' ela= 1 p1=4294967295 p2=0 p3=2147483647 obj#=0 tim=44196898243771

WAIT #3: nam='checkpoint completed' ela= 917744 p1=0 p2=0 p3=0 obj#=0 tim=44196899161638

WAIT #3: nam='control file sequential read' ela= 64 file#=0 block#=1 blocks=1 obj#=0 tim=44196899161917

WAIT #3: nam='control file sequential read' ela= 39 file#=1 block#=1 blocks=1 obj#=0 tim=44196899162027

WAIT #3: nam='control file sequential read' ela= 38 file#=0 block#=15 blocks=1 obj#=0 tim=44196899162107

WAIT #3: nam='control file sequential read' ela= 34 file#=0 block#=17 blocks=1 obj#=0 tim=44196899162198

WAIT #3: nam='control file sequential read' ela= 33 file#=0 block#=24 blocks=1 obj#=0 tim=44196899162310

WAIT #3: nam='db file sequential read' ela= 28 file#=31 block#=1 blocks=1 obj#=0 tim=44196899162474

WAIT #3: nam='db file single write' ela= 740 file#=31 block#=1 blocks=1 obj#=0 tim=44196899163282

File 31 (stop scn 9149840017767) completed recovery at checkpoint scn 9149840017767

WAIT #3: nam='control file parallel write' ela= 3396 files=2 block#=23 requests=2 obj#=0 tim=44196899166785

WAIT #3: nam='control file parallel write' ela= 2824 files=2 block#=18 requests=2 obj#=0 tim=44196899169719

WAIT #3: nam='control file parallel write' ela= 2896 files=2 block#=16 requests=2 obj#=0 tim=44196899172755

WAIT #3: nam='control file parallel write' ela= 3847 files=2 block#=1 requests=2 obj#=0 tim=44196899176723

WAIT #3: nam='control file sequential read' ela= 42 file#=0 block#=1 blocks=1 obj#=0 tim=44196899176814

ARCH: Connecting to console port...

----- Redo read statistics for thread 1 -----

Read rate (SYNC): 777Kb in 1.18s => 0.64 Mb/sec

Total physical reads: 8192Kb

Longest record: 8Kb, moves: 0/1274 (0%)

Change moves: 5/37 (13%), moved: 0Mb

Longest LWN: 160Kb, moves: 0/171 (0%), moved: 0Mb

Last redo scn: 0x0852.5cf6c966 (9149840017766)

----------------------------------------------

*** 2013-08-02 09:30:03.769

Media Recovery drop redo thread 1

WAIT #3: nam='ksfd: async disk IO' ela= 4 count=4294967295 intr=0 timeout=2147483647 obj#=0 tim=44196899194593

KCBR: Number of read descriptors = 1024

KCBR: Influx buffers flushed = 3 times

KCBR: Reads = 0 reap (0 no-op, 0 one), 14 all

WAIT #3: nam='rdbms ipc reply' ela= 8 from_process=5 timeout=910 p3=0 obj#=0 tim=44196899221875

WAIT #3: nam='rdbms ipc reply' ela= 10 from_process=5 timeout=910 p3=0 obj#=0 tim=44196899221941

XCTEND rlbk=0, rd_only=1

EXEC #3:c=90000,e=1268925,p=0,cr=0,cu=2,mis=0,r=0,dep=0,og=2,tim=44196899222600

WAIT #3: nam='log file sync' ela= 7 buffer#=3663 p2=0 p3=0 obj#=0 tim=44196899222824

WAIT #3: nam='log file sync' ela= 5000 buffer#=3663 p2=0 p3=0 obj#=0 tim=44196899227869

WAIT #3: nam='SQL*Net message to client' ela= 11 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=44196899238045

alter database ... create datafile的原理及用途

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