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Oracle查询行对应block_id,file_id
阅读量:453 次
发布时间:2019-03-06

本文共 856 字,大约阅读时间需要 2 分钟。

select id,rowid,

dbms_rowid.rowid_object(rowid) object#,
dbms_rowid.rowid_relative_fno(rowid) file#,
dbms_rowid.rowid_block_number(rowid) block#,
dbms_rowid.rowid_row_number(rowid) row# from scott.t where id in(1,300000);
ID           ROWID                             OBJECT# FILE# BLOCK#       ROW#
---------- ------------------ ---------- ---------- ---------- ----------
1           AAAWb0AAEAACvPCAAp 91892         4        717762           41
300000 AAAWb0AAEAACvN8AAw 91892         4       717692            48

select

t.segment_name,
t.partition_name,
t.BLOCK_ID,(t.BLOCKS + t.BLOCK_ID -1) "MAX_BLOCK_ID"
from sys.dba_extents t,dba_tab_partitions p
where t.PARTITION_NAME=p.partition_name and p.TABLE_OWNER='SCOTT' and p.table_name='T';
SEGMENT_NA             PARTITION_NAME BLOCK_ID MAX_BLOCK_ID
---------- ------------------------------ ---------- ------------
T                                    SYS_P109                   714368             715391
T                                    SYS_P110                   715392             716415
T                                    SYS_P111                   716416             717439
T                                    SYS_P112                   717440             718463

  

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