Database Administration (MOSC)

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Ask about auto extend of datafile.

edited Jul 18, 2011 8:04AM in Database Administration (MOSC) 3 commentsAnswered
Hi all,

I created tablespace with four datafile by EM. I view SQL from EM such as:

CREATE SMALLFILE TABLESPACE "NEW_PERPIDX"

DATAFILE

'/u01/san_backup/vtadb_datafile/perpidx01.dbf'

SIZE 1000M

AUTOEXTEND ON NEXT 250M

MAXSIZE 20000M ,

 '/u01/san_backup/vtadb_datafile/perpidx02.dbf'

SIZE 1000M

AUTOEXTEND ON NEXT 250M

MAXSIZE 20000M ,

'/u01/san_backup/vtadb_datafile/perpidx03.dbf'

SIZE 1000M

AUTOEXTEND ON NEXT 250M

MAXSIZE 20000M ,

'/u01/san_backup/vtadb_datafile/perpidx04.dbf'

SIZE 1000M

AUTOEXTEND ON NEXT 250M

MAXSIZE 20000M

LOGGING

EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO

Show four this datafiles from EM, I saw three datafiles and size of them full, only one datafile extending (250M). I want ask, why four datafiles can't extend at a same time (just only one datafile extends 250M) ?

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