I don’t know what it is today, but reading Tanel’s post about “Oracle 11g: Reading alert log via SQL“, I just wanted to see if I could manage to do it backwards.
In principle you don’t have to use the statements below, because I noticed that the DBMS_SYSTEM.KSDWRT will do it for you automatically.
The content of my Oracle 11g log.xml file is as follows
<msg time='2008-11-24T21:10:48.265+01:00' org_id='oracle' comp_id='rdbms' msg_id='opistr_real:887:3971575317' type='NOTIFICATION' GROUP='startup' level='16' host_id='14-317-818' host_addr='10.10.10.103' pid='2188' version='1'> <txt>Starting ORACLE instance (normal) </txt> </msg> <msg time='2008-11-24T21:10:48.312+01:00' org_id='oracle' comp_id='rdbms' msg_id='ksunfy:13802:2937430291' type='NOTIFICATION' GROUP='startup' level='16' host_id='14-317-818' host_addr='10.10.10.103' pid='2188'> <txt>LICENSE_MAX_SESSION = 0 </txt> </msg> <msg time='2008-11-24T21:10:48.312+01:00' org_id='oracle' comp_id='rdbms' msg_id='ksunfy:13803:4207019197' type='NOTIFICATION' GROUP='startup' level='16' host_id='14-317-818' host_addr='10.10.10.103' pid='2188'> <txt>LICENSE_SESSIONS_WARNING = 0 </txt> </msg>
So based on Tanel’s blog, could I do the same, but now with XMLDB functions (based on database version 11.1.0.7.0)…
Here it goes.
SELECT XMLElement(NOENTITYESCAPING "msg", XMLAttributes( alt.ORIGINATING_TIMESTAMP AS "time" , alt.ORGANIZATION_ID AS "org_id" , alt.COMPONENT_ID AS "comp_id" , alt.MESSAGE_ID AS "msg_id" , alt.MESSAGE_TYPE AS "type" , alt.MESSAGE_GROUP AS "group" , alt.MESSAGE_LEVEL AS "level" , alt.HOST_ID AS "host_id" , alt.HOST_ADDRESS AS "host_addr" , alt.PROCESS_ID AS "pid_id" , alt.VERSION AS "version" ), XMLElement("txt", MESSAGE_TEXT) ) AS "LOG.XML" FROM X$DBGALERTEXT alt WHERE rownum < = 3 / SQL> SET LINES 74 SQL> SQL> SELECT XMLElement(NOENTITYESCAPING "msg", 2 XMLAttributes( alt.ORIGINATING_TIMESTAMP AS "time" 3 , alt.ORGANIZATION_ID AS "org_id" 4 , alt.COMPONENT_ID AS "comp_id" 5 , alt.MESSAGE_ID AS "msg_id" 6 , alt.MESSAGE_TYPE AS "type" 7 , alt.MESSAGE_GROUP AS "group" 8 , alt.MESSAGE_LEVEL AS "level" 9 , alt.HOST_ID AS "host_id" 10 , alt.HOST_ADDRESS AS "host_addr" 11 , alt.PROCESS_ID AS "pid_id" 12 , alt.VERSION AS "version" 13 ), 14 XMLElement("txt", MESSAGE_TEXT) 15 ) AS "LOG.XML" 16 FROM X$DBGALERTEXT alt 17 WHERE rownum < = 3 18 / LOG.XML -------------------------------------------------------------------------- <msg time="2008-11-24T21:10:48.265+01:00" org_id="oracle" comp_id="rdbms" msg_id="opistr_real:887:3971575317" type="5" GROUP="startup" level="16" ho st_id="14-317-818" host_addr="10.10.10.103" pid_id="2188" version="1"><txt>Starting ORACLE instance (normal) </txt> <msg time="2008-11-24T21:10:48.312+01:00" org_id="oracle" comp_id="rdbms" msg_id="ksunfy:13802:2937430291" type="5" GROUP="startup" level="16" host_ id="14-317-818" host_addr="10.10.10.103" pid_id="2188" version="0"><txt>LI CENSE_MAX_SESSION = 0 </txt></msg> <msg time="2008-11-24T21:10:48.312+01:00" org_id="oracle" comp_id="rdbms" msg_id="ksunfy:13803:4207019197" type="5" GROUP="startup" level="16" host_ id="14-317-818" host_addr="10.10.10.103" pid_id="2188" version="0"><txt>LI CENSE_SESSIONS_WARNING = 0 </txt></msg> 3 rows selected.
I comes close, but it uses still double quotes and doesn’t do the new lines on every third element, also the pretty print layout between “msg” and “txt” elements isn’t properly done yet. Trying to come a little bit close to the original log.xml output, I came up with the following…
SELECT xmlserialize (CONTENT XMLElement(NOENTITYESCAPING "msg", XMLAttributes( alt.ORIGINATING_TIMESTAMP AS "time" , alt.ORGANIZATION_ID AS "org_id" , alt.COMPONENT_ID AS "comp_id" , alt.MESSAGE_ID AS "msg_id" , alt.MESSAGE_TYPE AS "type" , alt.MESSAGE_GROUP AS "group" , alt.MESSAGE_LEVEL AS "level" , alt.HOST_ID AS "host_id" , alt.HOST_ADDRESS AS "host_addr" , alt.PROCESS_ID AS "pid_id" , alt.VERSION AS "version" ), XMLElement("txt", MESSAGE_TEXT) ) INDENT SIZE=0 HIDE DEFAULTS ) AS "LOG.XML" FROM X$DBGALERTEXT alt WHERE rownum < = 3 / SQL> SET LINES 1000 SQL> col "LOG.XML" FOR a100 SQL> SELECT xmlserialize 2 (CONTENT 3 XMLElement(NOENTITYESCAPING "msg", 4 XMLAttributes( alt.ORIGINATING_TIMESTAMP AS "time" 5 , alt.ORGANIZATION_ID AS "org_id" 6 , alt.COMPONENT_ID AS "comp_id" 7 , alt.MESSAGE_ID AS "msg_id" 8 , alt.MESSAGE_TYPE AS "type" 9 , alt.MESSAGE_GROUP AS "group" 10 , alt.MESSAGE_LEVEL AS "level" 11 , alt.HOST_ID AS "host_id" 12 , alt.HOST_ADDRESS AS "host_addr" 13 , alt.PROCESS_ID AS "pid_id" 14 , alt.VERSION AS "version" 15 ), 16 XMLElement("txt", MESSAGE_TEXT) 17 ) 18 INDENT SIZE=0 HIDE DEFAULTS 19 ) AS "LOG.XML" 20 FROM X$DBGALERTEXT alt 21 WHERE rownum < = 3 22 / LOG.XML ------------------------------------------------------------------------------ <msg time="2008-11-24T21:10:48.265+01:00" org_id="oracle" comp_id= "rdbms" msg_id="opistr_real:887:3971575317" type="5" GROUP="startup" level="16" host_id= "14-317-818" host_addr="10.10.10.103" pid_id ="2188" version="1"> <txt>Starting ORACLE instance (normal) </txt> <msg time="2008-11-24T21:10:48.312+01:00" org_id="oracle" comp_id= "rdbms" msg_id="ksunfy:13802:2937430291" typ e="5" GROUP="startup" level="16" host_id="14 -317-818" host_addr="10.10.10.103" pid_id="2 188" version="0"> <txt>LICENSE_MAX_SESSION = 0 </txt> </msg> <msg time="2008-11-24T21:10:48.312+01:00" org_id="oracle" comp_id= "rdbms" msg_id="ksunfy:13803:4207019197" typ e="5" GROUP="startup" level="16" host_id="14 -317-818" host_addr="10.10.10.103" pid_id="2 188" version="0"> <txt>LICENSE_SESSIONS_WARNING = 0 </txt> </msg> 3 rows selected.
It doesn’t matter. It was just for fun. DBMS_SYSTEM.KSDWRT will do it for you automatically, anyway…
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