What is bootstrap?
Bootstrap is a technique for loading the first few instructions of a computer program into active memory and then using them to bring in the rest of the program.
|SQL> startup mount ;
SQL> alter session set events ‘10046 trace name context forever, level 12 ‘ ;
SQL> alter database open ;
SQL> alter session set events ‘10046 trace name context off ‘ ;
SQL> ORADEBUG SETMYPID
SQL> ORADEBUG TRACEFILE_NAME
Upon the successful completion of bootstrap the database will do the other tasks like recovery and will open the database.
Objects with data_object_id less than 56 are classified as core bootstrap objects.The objects are added to the bootstrap. The objects affected are :
1. Opening the database in migrate mode
2. Using event 38003
2. This error can also occur when system datafile has corrupted blocks. (ORA-01578)
3. In earlier releases of oracle (prior to 7.3.4 and 8.0.3) this issue shall arise due to Bug 434596