24 | 06 | 2017
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Using DBMS_ROWID to mine the ROWID pseudocolumn

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Using DBMS_ROWID to mine the ROWID pseudocolumn

 

Retrieve the block number ( In which block is the record stored )

 

 

SQL> select dbms_rowid.rowid_block_number('AAAV0JAAEAAAAH8AAf') BLOCK from dual;

BLOCK
----------
508

 

 

Retrieve the file number ( in which file is the record stored )

 

SQL> select dbms_rowid.rowid_relative_fno('AAAV0JAAEAAAAH8AAf') FILE_NO from dual;

FILE
----------
4

 

Retrieve the data object id ( to which object does this record belong )

 

SQL> select dbms_rowid.rowid_object('AAAV0JAAEAAAAH8AAf') DATA_OBJECT_ID from dual;

DATA_OBJECT_ID
----------
89353

 

Retrieve the row number in the block ( what is the relative row number in the block )

 

SQL> select dbms_rowid.rowid_row_number('AAAV0JAAEAAAAH8AAf') ROW_NUMBER from dual;

ROW_NUMBER
----------
31

 

What data is there in block 508



SQL> select * from t_supplier_su where dbms_rowid.rowid_block_number(rowid)=508;