This example is similar to "Example 4: Using the LogMiner Dictionary in the Redo Log Files", except the list of redo log files are not specified explicitly. This example assumes that you want to use the data dictionary extracted to the redo log files.
SELECT NAME, FIRST_TIME FROM V$ARCHIVED_LOG
WHERE SEQUENCE# = (SELECT MAX(SEQUENCE#) FROM V$ARCHIVED_LOG
WHERE DICTIONARY_BEGIN = 'YES');
NAME FIRST_TIME
-------------------------------------------- --------------------
/usr/oracle/data/db1arch_1_207_482701534.dbf 10-jan-2012 12:01:34
This step is not required, but is included to demonstrate that the CONTINUOUS_MINE option works as expected, as will be shown in Step 4.
SELECT FILENAME name FROM V$LOGMNR_LOGS WHERE LOW_TIME > '10-jan-2012 12:01:34'; NAME ---------------------------------------------- /usr/oracle/data/db1arch_1_207_482701534.dbf /usr/oracle/data/db1arch_1_208_482701534.dbf /usr/oracle/data/db1arch_1_209_482701534.dbf /usr/oracle/data/db1arch_1_210_482701534.dbf
Start LogMiner by specifying the dictionary to use and the COMMITTED_DATA_ONLY, PRINT_PRETTY_SQL, and CONTINUOUS_MINE options.
EXECUTE DBMS_LOGMNR.START_LOGMNR(-
STARTTIME => '10-jan-2012 12:01:34', -
ENDTIME => SYSDATE, -
OPTIONS => DBMS_LOGMNR.DICT_FROM_REDO_LOGS + -
DBMS_LOGMNR.COMMITTED_DATA_ONLY + -
DBMS_LOGMNR.PRINT_PRETTY_SQL + -
DBMS_LOGMNR.CONTINUOUS_MINE);
This step shows that the DBMS_LOGMNR.START_LOGMNR procedure with the CONTINUOUS_MINE option includes all of the redo log files that have been generated so far, as expected. (Compare the output in this step to the output in Step 2.)
SELECT FILENAME name FROM V$LOGMNR_LOGS; NAME ------------------------------------------------------ /usr/oracle/data/db1arch_1_207_482701534.dbf /usr/oracle/data/db1arch_1_208_482701534.dbf /usr/oracle/data/db1arch_1_209_482701534.dbf /usr/oracle/data/db1arch_1_210_482701534.dbf
To reduce the number of rows returned by the query, exclude all DML statements done in the SYS or SYSTEM schema. (This query specifies a timestamp to exclude transactions that were involved in the dictionary extraction.)
Note that all reconstructed SQL statements returned by the query are correctly translated.
SELECT USERNAME AS usr,(XIDUSN || '.' || XIDSLT || '.' || XIDSQN) as XID,
SQL_REDO FROM V$LOGMNR_CONTENTS
WHERE SEG_OWNER IS NULL OR SEG_OWNER NOT IN ('SYS', 'SYSTEM') AND
TIMESTAMP > '10-jan-2012 15:59:53';
USR XID SQL_REDO
----------- -------- -----------------------------------
SYS 1.2.1594 set transaction read write;
SYS 1.2.1594 create table oe.product_tracking (product_id number not null,
modified_time date,
old_list_price number(8,2),
old_warranty_period interval year(2) to month);
SYS 1.2.1594 commit;
SYS 1.18.1602 set transaction read write;
SYS 1.18.1602 create or replace trigger oe.product_tracking_trigger
before update on oe.product_information
for each row
when (new.list_price <> old.list_price or
new.warranty_period <> old.warranty_period)
declare
begin
insert into oe.product_tracking values
(:old.product_id, sysdate,
:old.list_price, :old.warranty_period);
end;
SYS 1.18.1602 commit;
OE 1.9.1598 update "OE"."PRODUCT_INFORMATION"
set
"WARRANTY_PERIOD" = TO_YMINTERVAL('+08-00'),
"LIST_PRICE" = 100
where
"PRODUCT_ID" = 1729 and
"WARRANTY_PERIOD" = TO_YMINTERVAL('+05-00') and
"LIST_PRICE" = 80 and
ROWID = 'AAAHTKAABAAAY9yAAA';
OE 1.9.1598 insert into "OE"."PRODUCT_TRACKING"
values
"PRODUCT_ID" = 1729,
"MODIFIED_TIME" = TO_DATE('13-jan-2012 16:07:03',
'dd-mon-yyyy hh24:mi:ss'),
"OLD_LIST_PRICE" = 80,
"OLD_WARRANTY_PERIOD" = TO_YMINTERVAL('+05-00');
OE 1.9.1598 update "OE"."PRODUCT_INFORMATION"
set
"WARRANTY_PERIOD" = TO_YMINTERVAL('+08-00'),
"LIST_PRICE" = 92
where
"PRODUCT_ID" = 2340 and
"WARRANTY_PERIOD" = TO_YMINTERVAL('+05-00') and
"LIST_PRICE" = 72 and
ROWID = 'AAAHTKAABAAAY9zAAA';
OE 1.9.1598 insert into "OE"."PRODUCT_TRACKING"
values
"PRODUCT_ID" = 2340,
"MODIFIED_TIME" = TO_DATE('13-jan-2012 16:07:07',
'dd-mon-yyyy hh24:mi:ss'),
"OLD_LIST_PRICE" = 72,
"OLD_WARRANTY_PERIOD" = TO_YMINTERVAL('+05-00');
OE 1.9.1598 commit;
EXECUTE DBMS_LOGMNR.END_LOGMNR();