Hi Anupam, unfortunately you have neither provided your Oracle version nor the heap dump (summary) for your issue. However based on the exact ORA-04030 error text and the XMLTable construct, it seems like you have hit Oracle bug #12824731 / #15979366, which is a memory leak. For more detailed information please check MOS ID #1512845.1 - "ORA-04030 (KXS-HEAP-W,QMEMNEXTBUF:LARGE ALLOC) from XMLTABLE Passing XMLTYPE with Binary XML". Best Regards Stefan Koehler Freelance Oracle performance consultant and researcher Homepage: http://www.soocs.de Twitter: @OracleSK > Anupam Pandey <my.oralce@xxxxxxxxx> hat am 2. Januar 2015 um 19:19 > geschrieben: > > Hi All, > I am executing below mentioned query with append hint . > > insert /*+ append */ into MYUSER.MONTH_DATA > select 201411 as month_key, > 1 as id, > 7 as key , > 24 as md, > t3.wd, > <http://t3.mt> , > <http://t3.ht> , > t3.pi > <http://t3.th> , > decode( t3.td1,'NaN','0',t3.td1) , > decode( t3.td2,'NaN','0',t3.td2) , > decode( t3.td3,'NaN','0',t3.td3) , > decode( t3.td4,'NaN','0',t3.td4) , > decode( t3.td5 ,'NaN','0',t3.td5) , > decode( t3.td6 ,'NaN','0',t3.td6) , > decode( t3.td7 ,'NaN','0',t3.td7) > from MYUSER.STAGE_MONTH t1 , > XMLTable(xmlnamespaces(default ' http://mydataproc.com/New' > <http://mydataproc.com/New'> ), > 'REPORT/TABLE/TBODY/TR' > PASSING t1.object_value > COLUMNS TH VARCHAR2(100) PATH 'TH', > wd VARCHAR2(200) PATH 'TH/@wd', > mt VARCHAR2(200) PATH 'TH/@mt', > ht VARCHAR2(200) PATH 'TH/@ht', > pi VARCHAR2(200) PATH 'TH/@pi', > TD1 VARCHAR2(100) PATH 'TD[1]', > TD2 VARCHAR2(100) PATH 'TD[2]', > TD3 VARCHAR2(100) PATH 'TD[3]', > TD4 VARCHAR2(100) PATH 'TD[4]', > TD5 VARCHAR2(100) PATH 'TD[5]', > TD6 varchar2(100) PATH 'TD[6]', > TD7 VARCHAR2(100) PATH 'TD[7]') t3 ; > > But it fails after sometime with below error . > ORA-04030: out of process memory when trying to allocate 55600 bytes > (kxs-heap-w,qmemNextBuf:Large > Alloc) > > I was thinking that with append hint it will take route of directly loading > into the disk > bypassing memory which does not seem to be the case . > > Is there any other way I should rewrite insert statement to avoid memory > error. Total number of rows > getting loaded here is 150K Or let me know if there is anything else I need > to change . > > Thanks, > Anupam -- //www.freelists.org/webpage/oracle-l