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  • Data files

    1、查看Data File 结构

    SQL> desc dba_data_files;
     Name                                                                                                              Null?    Type
     ----------------------------------------------------------------------------------------------------------------- -------- ------------------------------------------------------
     FILE_NAME                                                                                                                  VARCHAR2(513)
     FILE_ID                                                                                                                    NUMBER
     TABLESPACE_NAME                                                                                                            VARCHAR2(30)
     BYTES                                                                                                                      NUMBER
     BLOCKS                                                                                                                     NUMBER
     STATUS                                                                                                                     VARCHAR2(9)
     RELATIVE_FNO                                                                                                               NUMBER
     AUTOEXTENSIBLE                                                                                                             VARCHAR2(3)
     MAXBYTES                                                                                                                   NUMBER
     MAXBLOCKS                                                                                                                  NUMBER
     INCREMENT_BY                                                                                                               NUMBER
     USER_BYTES                                                                                                                 NUMBER
     USER_BLOCKS                                                                                                                NUMBER
     ONLINE_STATUS                                                                                                              VARCHAR2(7)

    2、查看数据文件详细信息

    SQL> select file_name,tablespace_name from dba_data_files;
    /u01/oradata/poli/users01.dbf            USERS
    /u01/oradata/poli/undotbs01.dbf          UNDOTBS1
    /u01/oradata/poli/sysaux01.dbf           SYSAUX
    /u01/oradata/poli/system01.dbf           SYSTEM
    /u01/oradata/poli/example01.dbf          EXAMPLE

    3、来自动态性能视图v$datafile的数据文件信息

    SQL> select file#,name from v$datafile;
    
         FILE# NAME
    ---------- ------------------------------------------------------------
             1 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\SYSTEM01.DBF
             2 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\SYSAUX01.DBF
             3 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\UNDOTBS01.DBF
             4 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\USERS01.DBF
             5 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\EXAMPLE01.DBF
             6 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\ASSM_1.DBF
             7 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\MSSM_1.DBF
             8 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\APP_DATA_01.DBF
             9 D:\APP\MARYHU\ORADATA\ARCERZHANGDB\APP_TEST01.DBF
    
    9 rows selected.
    View Code
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  • 原文地址:https://www.cnblogs.com/arcer/p/2971515.html
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