As many people have often requested instructions upon how to figure out which tables were blocked, at which time, by whom, this is a simple tutorial using the 20-year old tool LOCK LOGGER. I did not have time to explain everything, but if you need more detailed info, please contact me.
1) Turn on the LOCKING LOGGER Flag via dbscontrol:
DBS Control Record - General Fields:
1. Version = 10
2. SysInit = TRUE (2013-11-04 10:55)
3. DeadLockTimeout = 240 (Seconds)
4. (Reserved for future use)
5. HashFuncDBC = 6 (Universal)
6. (Reserved for future use)
7. (Reserved for future use)
8. SessionMode = 0 (Teradata mode)
9. LockLogger = FALSE (Disabled) <---- THIS MUST BE TRUE
10. RollbackPriority = FALSE (Disabled)
...
26. ExternalAuthentication = 0 (On)
27. IdCol Batch Size = 100000 (Default value)
28. LockLogger Delay Filter = FALSE
29. LockLogger Delay Filter Time = 0 (Seconds; Default value)
30. ObjectUseCountCollectRate = 10 (Minutes; Recommended)
31. LockLogSegmentSize = 64 (KB; Minimum value)
32. CostProfileId = 0
There are 3 flags of interest (9), (28), and (29). Flag (31) is optional.
A/ Flag 9 allows LOCKING LOGGER to record contention into memory and save into table
B/ Flag 28 allows the filtering of contention time, so that less worthy data can be skipped
C/ Flag 29 works in conjunction with flag 28. It is the minimum contention time to be recorded.
A tpareset is needed one time to enable these flags to take effects.
Enter a command, HELP, or QUIT:
> modify gen 9 = true
modify gen 9 = true
The LockLogger field has been modified from FALSE to TRUE.
NOTE: This change will become effective after the next DBS restart.
Enter a command, HELP, or QUIT:
> write
write
Locking the DBS Control GDO...
Updating the DBS Control GDO...
Enter a command, HELP, or QUIT:
> quit
quit
Exiting DBSControl...
2) Now, restart the DBS and verify the flag being ON.
unzen:~ # tpareset "RESTART DBS TO ENABLE LOCK LOGGER"
You are about to restart the database
on the system
'unzen'
Do you wish to continue (default: n) [y,n] Y
unzen:~ #
DBS Control Record - General Fields:
1. Version = 10
2. SysInit = TRUE (2013-11-04 10:55)
3. DeadLockTimeout = 240 (Seconds)
4. (Reserved for future use)
5. HashFuncDBC = 6 (Universal)
6. (Reserved for future use)
7. (Reserved for future use)
8. SessionMode = 0 (Teradata mode)
9. LockLogger = TRUE (Enabled) <--------- ENABLED
10. RollbackPriority = FALSE (Disabled)
11. MaxLoadTasks = 5
12. RollForwardLock = FALSE (Disabled)
3) The LOCK LOGGER is a historical recording tool, so it will track data as long as the buffer (64K, flag 31) can hold. The entries will be wrapped around this buffer when it is full. So, there could be as much data as a week worth, or a minute worth depending how filled up the buffer is. Another thing to realize is that this information is PER-AMP. So, there will be multiple repeating entries of the same lock contentions across many amps, say, in the case of a ALL-AMP lock. Or there might just be one if it is a hashed lock on just one amp.
Now, once the timing of the contention is known, afterwards, the tool DUMPLOCKLOG can be used to extract the lock contentions which have been recorded since the last TPARESET (These are stored in memory, so a reset will blow all away). DUMPLOCKLOG will transfer these data from memory into a user-table for querying, selecting, etc..
Input Supervisor Command:
> start dumplocklog
start dumplocklog
Started 'dumplocklog' in window 1
at Tue Dec 17 17:11:31 2013
Input Supervisor Command:
Input Supervisor Command:
unzen:~ # cnsterm 1
Attempting to connect to CNS...Completed.
Hello
_______
| | |
| ___ __ ____ | ____ __|__ ____
| / |/ \ ____| ____| ____| | ____|
| --- | / | / | / | | / |
| \___ | \____| \____| \____| |__ \____|
Release 15g.00.00.155 Version 15g.00.00.155dr142532_23
DUMP LOCK LOG Utility (Dec 98)
This utility writes lock log entries in memory to an user specified table.
Enter your logon string: <username,password> (Q/q to quit)
> systemfe,service
systemfe,service
Do you want this utility to run continuously? (Y/N)
> n
n
Enter number of sessions (? For Help, Q/q to Quit):
> *
*
8 sessions will be logged on.
Enter the Character Set (? For Help, Q/q to Quit):
> *
*
Enter the table name where the lock log entries will
be written (? For Help, Q/q to Quit):
> LOCKLOGGER_TEST
LOCKLOGGER_TEST
Do you want this utility to create table "SYSTEMFE"."LOCKLOGGER_TEST"? (Y/N)
> y
y
Table "SYSTEMFE"."LOCKLOGGER_TEST" has been created.
Enter the time constraint to control selection of lock log entries
that were generated AT or LATER than this time YYYYMMDD HHMMSS
(? For Help, Q/q to Quit):
> *
*
Enter the time constraint to control selection of lock log entries
that were generated AT or PRIOR to this time YYYYMMDD HHMMSS
(? For Help, Q/q to Quit):
> *
*
Enter the object constraint for selection of
lock log entries (? For Help, Q/q to Quit):
> *
*
Writing lock log entries to table "SYSTEMFE"."LOCKLOGGER_TEST".
Press <F2> any time to stop the utility.
>
Writing lock log entries to table "SYSTEMFE"."LOCKLOGGER_TEST".
Press <F2> any time to stop the utility.
> 5 rows have been inserted to table "SYSTEMFE"."LOCKLOGGER_TEST".
*** DumpLockLog is terminated ***
4) The same execution of DUMPLOCKLOG above could be done in batch. There is a BATCH version called "dumplocklogb" which could take in the input above in batch mode. I will go into this later.
5) Once the execution is done, the table will be populated and we can query on it:
1 BTEQ 12.00.00.02 Tue Dec 17 18:27:12 2013
2
3 +---------+---------+---------+---------+---------+---------+---------+----
4 .logon unzen/dbc,
5
6 *** Logon successfully completed.
7 *** Teradata Database Release is 15g.00.00.155
8 *** Teradata Database Version is 15g.00.00.155dr142532_23
9 *** Transaction Semantics are BTET.
10 *** Character Set Name is 'ASCII'.
11
12 *** Total elapsed time was 1 second.
13
14 +---------+---------+---------+---------+---------+---------+---------+----
15 database systemfe;
16
17 *** New default database accepted.
18 *** Total elapsed time was 1 second.
19
20
21 +---------+---------+---------+---------+---------+---------+---------+----
22 show table LOCKLOGGER_TEST;
23
24 *** Text of DDL statement returned.
25 *** Total elapsed time was 1 second.
26
27 ---------------------------------------------------------------------------
28 CREATE SET TABLE SYSTEMFE.LOCKLOGGER_TEST ,FALLBACK ,
29 NO BEFORE JOURNAL,
30 NO AFTER JOURNAL,
31 CHECKSUM = DEFAULT,
32 DEFAULT MERGEBLOCKRATIO
33 (
34 BEGDATE DATE FORMAT 'YY/MM/DD' NOT NULL,
35 BEGTIME FLOAT FORMAT '99:99:99.999' NOT NULL,
36 DELAY FLOAT FORMAT '99:99:99.999' NOT NULL,
37 DBID BYTE(4) NOT NULL,
38 TID BYTE(6) NOT NULL,
39 BLKDLOGHOST SMALLINT NOT NULL,
40 BLKDSESSNO INTEGER NOT NULL,
41 BLKDLEVEL CHAR(8) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
42 BLKDMODE CHAR(2) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
43 BLKINGLOGHOST SMALLINT NOT NULL,
44 BLKINGSESSNO INTEGER NOT NULL,
45 BLKINGLEVEL CHAR(8) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
46 BLKINGMODE CHAR(2) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
47 PROCESSOR SMALLINT FORMAT 'ZZZZ9' NOT NULL,
48 DEADLOCK CHAR(1) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
49 MULTIPLEBLOCKER CHAR(1) CHARACTER SET LATIN NOT CASESPECIFIC NOT NUL
50 L,
51 STMTTYPE VARCHAR(20) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL)
52 PRIMARY INDEX ( BEGDATE ,BEGTIME );
53
54
55 +---------+---------+---------+---------+---------+---------+---------+----
56 /*
57 sel count(*) from LOCKLOGGER_TEST;
58
59 sel delay, count(*)
60 from LOCKLOGGER_TEST
61 group by 1
62 order by 1;
63 */
64
65 SEL DatabaseNameI (format 'x(30)'),
66 TVMNameI (format 'x(30)'),
67 delay (FORMAT '-----------9'), count(*)
68 from LOCKLOGGER_TEST L,
69 dbc.DBase D, dbc.TVM T
70 group by 1,2,3
71 order by 1 ,2,3
72 where delay > 0 and
73 L.dbid = D.DatabaseId AND
74 T.TVMId = l.tid;
75
76 *** Query completed. 3 rows found. 4 columns returned.
77 *** Total elapsed time was 1 second.
78
79 DatabaseNameI TVMNameI DELAY
80 ------------------------------ ------------------------------ ------------
81 DBC SW_EVENT_LOG 0
82 SYSTEMFE T1 6
83 SYSTEMFE T1 6
84
85 +---------+---------+---------+---------+---------+---------+---------+----
86
87 .os rm unzen_LOCKLOGGER_TEST.txt
88 unzen_LOCKLOGGER_TEST.txt: No such file or directory
89 *** Warning: System call failed.
90 +---------+---------+---------+---------+---------+---------+---------+----
91 .set width 200
92 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
93 .export report file=unzen_LOCKLOGGER_TEST.txt
94 *** To reset export, type .EXPORT RESET
95 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
96
97 sel
98 BEGDATE,
99 BEGTIME,
100 DatabaseNameI (format 'x(10)'),
101 TVMNameI (format 'x(20)'),
102 delay (FORMAT '------9'),
103 BLKDSESSNO,
104 BLKDLEVEL,
105 BLKDMODE,
106 BLKINGSESSNO,
107 BLKINGLEVEL,
108 BLKINGMODE,
109 PROCESSOR,
110 DEADLOCK,
111 MULTIPLEBLOCKER,
112 STMTTYPE
113 from LOCKLOGGER_TEST L,
114 dbc.DBase D, dbc.TVM T
115 where delay > 0 and
116 L.dbid = D.DatabaseId AND
117 T.TVMId = l.tid
118 order by begdate, begtime;
119
120 *** Query completed. 5 rows found. 15 columns returned.
121 *** Total elapsed time was 1 second.
122
123
124 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
125
126 .export reset
127 *** Output returned to console.
128 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
129
130 .logoff
131 *** You are now logged off from the DBC.
132 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
133 .quit
134 *** Exiting BTEQ...
135 *** RC (return code) = 0
6) Here's the sample data of contention recorded:
1 BEGDATE BEGTIME DatabaseNameI TVMNameI DELAY BLKDSESSNO BLKDLEVEL BLKDMODE BLKINGSESSNO BLKINGLEVEL BLKINGMODE PROCESSOR DEADLOCK MULTIPLEBLOCKER STMTTYPE
2 -------- ------------ ------------- -------------------- ------- ----------- --------- -------- ------------ ----------- ---------- --------- -------- --------------- --------------------
3 13/12/18 02:20:52.850 DBC SW_EVENT_LOG 0 0 RowHash Wr 1 RowHash Wr 5 N N UNKNOWN
4 13/12/18 02:20:55.600 DBC SW_EVENT_LOG 0 0 RowHash Wr 1 RowHash Wr 2 N N UNKNOWN
5 13/12/18 02:20:59.320 DBC SW_EVENT_LOG 0 0 RowHash Wr 1 RowHash Wr 1 N N UNKNOWN
6 13/12/18 02:21:59.690 SYSTEMFE T1 6 1001 RowHash Ac 1002 Database Ex 7 N N Update
7 13/12/18 02:22:10.110 SYSTEMFE T1 6 1001 RowHash Ac 1003 Database Ex 7 N N Update
As many people have often requested instructions upon how to figure out which tables were blocked, at which time, by whom, this is a simple tutorial using the 20-year old tool LOCK LOGGER. I did not have time to explain everything, but if you need more detailed info, please contact me.
1) Turn on the LOCKING LOGGER Flag via dbscontrol:
DBS Control Record - General Fields:
1. Version = 10
2. SysInit = TRUE (2013-11-04 10:55)
3. DeadLockTimeout = 240 (Seconds)
4. (Reserved for future use)
5. HashFuncDBC = 6 (Universal)
6. (Reserved for future use)
7. (Reserved for future use)
8. SessionMode = 0 (Teradata mode)
9. LockLogger = FALSE (Disabled) <---- THIS MUST BE TRUE
10. RollbackPriority = FALSE (Disabled)
...
26. ExternalAuthentication = 0 (On)
27. IdCol Batch Size = 100000 (Default value)
28. LockLogger Delay Filter = FALSE
29. LockLogger Delay Filter Time = 0 (Seconds; Default value)
30. ObjectUseCountCollectRate = 10 (Minutes; Recommended)
31. LockLogSegmentSize = 64 (KB; Minimum value)
32. CostProfileId = 0
There are 3 flags of interest (9), (28), and (29). Flag (31) is optional.
A/ Flag 9 allows LOCKING LOGGER to record contention into memory and save into table
B/ Flag 28 allows the filtering of contention time, so that less worthy data can be skipped
C/ Flag 29 works in conjunction with flag 28. It is the minimum contention time to be recorded.
A tpareset is needed one time to enable these flags to take effects.
Enter a command, HELP, or QUIT:
> modify gen 9 = true
modify gen 9 = true
The LockLogger field has been modified from FALSE to TRUE.
NOTE: This change will become effective after the next DBS restart.
Enter a command, HELP, or QUIT:
> write
write
Locking the DBS Control GDO...
Updating the DBS Control GDO...
Enter a command, HELP, or QUIT:
> quit
quit
Exiting DBSControl...
2) Now, restart the DBS and verify the flag being ON.
unzen:~ # tpareset "RESTART DBS TO ENABLE LOCK LOGGER"
You are about to restart the database
on the system
'unzen'
Do you wish to continue (default: n) [y,n] Y
unzen:~ #
DBS Control Record - General Fields:
1. Version = 10
2. SysInit = TRUE (2013-11-04 10:55)
3. DeadLockTimeout = 240 (Seconds)
4. (Reserved for future use)
5. HashFuncDBC = 6 (Universal)
6. (Reserved for future use)
7. (Reserved for future use)
8. SessionMode = 0 (Teradata mode)
9. LockLogger = TRUE (Enabled) <--------- ENABLED
10. RollbackPriority = FALSE (Disabled)
11. MaxLoadTasks = 5
12. RollForwardLock = FALSE (Disabled)
3) The LOCK LOGGER is a historical recording tool, so it will track data as long as the buffer (64K, flag 31) can hold. The entries will be wrapped around this buffer when it is full. So, there could be as much data as a week worth, or a minute worth depending how filled up the buffer is. Another thing to realize is that this information is PER-AMP. So, there will be multiple repeating entries of the same lock contentions across many amps, say, in the case of a ALL-AMP lock. Or there might just be one if it is a hashed lock on just one amp.
Now, once the timing of the contention is known, afterwards, the tool DUMPLOCKLOG can be used to extract the lock contentions which have been recorded since the last TPARESET (These are stored in memory, so a reset will blow all away). DUMPLOCKLOG will transfer these data from memory into a user-table for querying, selecting, etc..
Input Supervisor Command:
> start dumplocklog
start dumplocklog
Started 'dumplocklog' in window 1
at Tue Dec 17 17:11:31 2013
Input Supervisor Command:
Input Supervisor Command:
unzen:~ # cnsterm 1
Attempting to connect to CNS...Completed.
Hello
_______
| | |
| ___ __ ____ | ____ __|__ ____
| / |/ \ ____| ____| ____| | ____|
| --- | / | / | / | | / |
| \___ | \____| \____| \____| |__ \____|
Release 15g.00.00.155 Version 15g.00.00.155dr142532_23
DUMP LOCK LOG Utility (Dec 98)
This utility writes lock log entries in memory to an user specified table.
Enter your logon string: <username,password> (Q/q to quit)
> systemfe,service
systemfe,service
Do you want this utility to run continuously? (Y/N)
> n
n
Enter number of sessions (? For Help, Q/q to Quit):
> *
*
8 sessions will be logged on.
Enter the Character Set (? For Help, Q/q to Quit):
> *
*
Enter the table name where the lock log entries will
be written (? For Help, Q/q to Quit):
> LOCKLOGGER_TEST
LOCKLOGGER_TEST
Do you want this utility to create table "SYSTEMFE"."LOCKLOGGER_TEST"? (Y/N)
> y
y
Table "SYSTEMFE"."LOCKLOGGER_TEST" has been created.
Enter the time constraint to control selection of lock log entries
that were generated AT or LATER than this time YYYYMMDD HHMMSS
(? For Help, Q/q to Quit):
> *
*
Enter the time constraint to control selection of lock log entries
that were generated AT or PRIOR to this time YYYYMMDD HHMMSS
(? For Help, Q/q to Quit):
> *
*
Enter the object constraint for selection of
lock log entries (? For Help, Q/q to Quit):
> *
*
Writing lock log entries to table "SYSTEMFE"."LOCKLOGGER_TEST".
Press <F2> any time to stop the utility.
>
Writing lock log entries to table "SYSTEMFE"."LOCKLOGGER_TEST".
Press <F2> any time to stop the utility.
> 5 rows have been inserted to table "SYSTEMFE"."LOCKLOGGER_TEST".
*** DumpLockLog is terminated ***
4) The same execution of DUMPLOCKLOG above could be done in batch. There is a BATCH version called "dumplocklogb" which could take in the input above in batch mode. I will go into this later.
5) Once the execution is done, the table will be populated and we can query on it:
1 BTEQ 12.00.00.02 Tue Dec 17 18:27:12 2013
2
3 +---------+---------+---------+---------+---------+---------+---------+----
4 .logon unzen/dbc,
5
6 *** Logon successfully completed.
7 *** Teradata Database Release is 15g.00.00.155
8 *** Teradata Database Version is 15g.00.00.155dr142532_23
9 *** Transaction Semantics are BTET.
10 *** Character Set Name is 'ASCII'.
11
12 *** Total elapsed time was 1 second.
13
14 +---------+---------+---------+---------+---------+---------+---------+----
15 database systemfe;
16
17 *** New default database accepted.
18 *** Total elapsed time was 1 second.
19
20
21 +---------+---------+---------+---------+---------+---------+---------+----
22 show table LOCKLOGGER_TEST;
23
24 *** Text of DDL statement returned.
25 *** Total elapsed time was 1 second.
26
27 ---------------------------------------------------------------------------
28 CREATE SET TABLE SYSTEMFE.LOCKLOGGER_TEST ,FALLBACK ,
29 NO BEFORE JOURNAL,
30 NO AFTER JOURNAL,
31 CHECKSUM = DEFAULT,
32 DEFAULT MERGEBLOCKRATIO
33 (
34 BEGDATE DATE FORMAT 'YY/MM/DD' NOT NULL,
35 BEGTIME FLOAT FORMAT '99:99:99.999' NOT NULL,
36 DELAY FLOAT FORMAT '99:99:99.999' NOT NULL,
37 DBID BYTE(4) NOT NULL,
38 TID BYTE(6) NOT NULL,
39 BLKDLOGHOST SMALLINT NOT NULL,
40 BLKDSESSNO INTEGER NOT NULL,
41 BLKDLEVEL CHAR(8) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
42 BLKDMODE CHAR(2) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
43 BLKINGLOGHOST SMALLINT NOT NULL,
44 BLKINGSESSNO INTEGER NOT NULL,
45 BLKINGLEVEL CHAR(8) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
46 BLKINGMODE CHAR(2) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
47 PROCESSOR SMALLINT FORMAT 'ZZZZ9' NOT NULL,
48 DEADLOCK CHAR(1) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL,
49 MULTIPLEBLOCKER CHAR(1) CHARACTER SET LATIN NOT CASESPECIFIC NOT NUL
50 L,
51 STMTTYPE VARCHAR(20) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL)
52 PRIMARY INDEX ( BEGDATE ,BEGTIME );
53
54
55 +---------+---------+---------+---------+---------+---------+---------+----
56 /*
57 sel count(*) from LOCKLOGGER_TEST;
58
59 sel delay, count(*)
60 from LOCKLOGGER_TEST
61 group by 1
62 order by 1;
63 */
64
65 SEL DatabaseNameI (format 'x(30)'),
66 TVMNameI (format 'x(30)'),
67 delay (FORMAT '-----------9'), count(*)
68 from LOCKLOGGER_TEST L,
69 dbc.DBase D, dbc.TVM T
70 group by 1,2,3
71 order by 1 ,2,3
72 where delay > 0 and
73 L.dbid = D.DatabaseId AND
74 T.TVMId = l.tid;
75
76 *** Query completed. 3 rows found. 4 columns returned.
77 *** Total elapsed time was 1 second.
78
79 DatabaseNameI TVMNameI DELAY
80 ------------------------------ ------------------------------ ------------
81 DBC SW_EVENT_LOG 0
82 SYSTEMFE T1 6
83 SYSTEMFE T1 6
84
85 +---------+---------+---------+---------+---------+---------+---------+----
86
87 .os rm unzen_LOCKLOGGER_TEST.txt
88 unzen_LOCKLOGGER_TEST.txt: No such file or directory
89 *** Warning: System call failed.
90 +---------+---------+---------+---------+---------+---------+---------+----
91 .set width 200
92 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
93 .export report file=unzen_LOCKLOGGER_TEST.txt
94 *** To reset export, type .EXPORT RESET
95 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
96
97 sel
98 BEGDATE,
99 BEGTIME,
100 DatabaseNameI (format 'x(10)'),
101 TVMNameI (format 'x(20)'),
102 delay (FORMAT '------9'),
103 BLKDSESSNO,
104 BLKDLEVEL,
105 BLKDMODE,
106 BLKINGSESSNO,
107 BLKINGLEVEL,
108 BLKINGMODE,
109 PROCESSOR,
110 DEADLOCK,
111 MULTIPLEBLOCKER,
112 STMTTYPE
113 from LOCKLOGGER_TEST L,
114 dbc.DBase D, dbc.TVM T
115 where delay > 0 and
116 L.dbid = D.DatabaseId AND
117 T.TVMId = l.tid
118 order by begdate, begtime;
119
120 *** Query completed. 5 rows found. 15 columns returned.
121 *** Total elapsed time was 1 second.
122
123
124 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
125
126 .export reset
127 *** Output returned to console.
128 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
129
130 .logoff
131 *** You are now logged off from the DBC.
132 +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
133 .quit
134 *** Exiting BTEQ...
135 *** RC (return code) = 0
6) Here's the sample data of contention recorded:
1 BEGDATE BEGTIME DatabaseNameI TVMNameI DELAY BLKDSESSNO BLKDLEVEL BLKDMODE BLKINGSESSNO BLKINGLEVEL BLKINGMODE PROCESSOR DEADLOCK MULTIPLEBLOCKER STMTTYPE
2 -------- ------------ ------------- -------------------- ------- ----------- --------- -------- ------------ ----------- ---------- --------- -------- --------------- --------------------
3 13/12/18 02:20:52.850 DBC SW_EVENT_LOG 0 0 RowHash Wr 1 RowHash Wr 5 N N UNKNOWN
4 13/12/18 02:20:55.600 DBC SW_EVENT_LOG 0 0 RowHash Wr 1 RowHash Wr 2 N N UNKNOWN
5 13/12/18 02:20:59.320 DBC SW_EVENT_LOG 0 0 RowHash Wr 1 RowHash Wr 1 N N UNKNOWN
6 13/12/18 02:21:59.690 SYSTEMFE T1 6 1001 RowHash Ac 1002 Database Ex 7 N N Update
7 13/12/18 02:22:10.110 SYSTEMFE T1 6 1001 RowHash Ac 1003 Database Ex 7 N N Update