可以使用10046 event来跟踪
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | [oracle@ggos ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Fri Dec 20 19:48:00 2013 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to an idle instance. SQL startup mount ORACLE instance started. Total System Global Area 835104768 bytes Fixed Size 2257840 bytes Variable Size 717229136 bytes Database Buffers 113246208 bytes Redo Buffers 2371584 bytes Database mounted. SQL oradebug setmypid Statement processed. SQL alter session set events "10046 trace name context forever,level 12"; Session altered. SQL alter database open; Database altered. SQL oradebug tracefile_name /u01/app/oracle/diag/rdbms/oraprod/oraprod/trace/oraprod_ora_2820.trc SQL alter session set events "10046 trace name context off"; Session altered. SQL |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | WAIT #140190090045240: nam="db file sequential read" ela= 460 file#=1 block#=520 blocks=1 obj#=-1 tim=1387540363264254 ===================== PARSING IN CURSOR #140190090037016 len=188 dep=1 uid=0 oct=1 lid=0 tim=1387540363332140 hv=4006182593 ad="91871900" sqlid="32r4f1brckzq1" create table bootstrap$ ( END OF STMT PARSE #140190090037016:c=9000,e=67806,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=4,plh=0,tim =1387540363332139 EXEC #140190090037016:c=0,e=17461,p=0,cr=0,cu=0,mis=0,r=0,dep=1,og=4,plh=0,tim=1387540363349678 CLOSE #140190090037016:c=0,e=3,dep=1,type=0,tim=1387540363349760 ===================== PARSING IN CURSOR #140190090037016 len=55 dep=1 uid=0 oct=3 lid=0 tim=1387540363350500 hv=2111436465 ad="9185fc98" sqlid="6apq2rjyxmxpj" select line#, sql_text from bootstrap$ where obj# != :1 END OF STMT PARSE #140190090037016:c=999,e=710,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=4,plh=0,tim=1387540363350482 *** 2013-12-20 19:52:43.430 BINDS #140190090037016: Bind#0 oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00 oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0 kxsbbbfp=7f808c8482d0 bln=22 avl=02 flg=05 value=59 EXEC #140190090037016:c=2000,e=116005,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=4,plh=867914364,tim =1387540363466571 WAIT #140190090037016: nam="db file sequential read" ela= 24 file#=1 block#=520 blocks=1 obj#=59 tim=1387540363466681 |
可以看到是加载BOOTSTRAP$表
| 1 2 3 4 5 6 7 8 9 10 11 12 | SQL select dbms_metadata.get_ddl("TABLE","BOOTSTRAP$","SYS") from dual; CREATE TABLE "SYS"."BOOTSTRAP$" ( "LINE#" NUMBER NOT NULL ENABLE, "OBJ#" NUMBER NOT NULL ENABLE, "SQL_TEXT" VARCHAR2(4000) NOT NULL ENABLE ) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE(INITIAL 57344 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE "SYSTEM" |
| 1 2 3 4 5 | SQL select owner,OBJECT_ID from dba_objects where object_name=upper("bootstrap$"); OWNER OBJECT_ID ------------------------------ ---------- SYS 59 |