DBMS_ROWID.ROWID_BLOCK_NUMBER and DBMS_ROWID.ROWID_ROW_NUMBER : dbms_rowid « System Packages « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » System Packages » dbms_rowid 
31. 23. 3. DBMS_ROWID.ROWID_BLOCK_NUMBER and DBMS_ROWID.ROWID_ROW_NUMBER
SQL>
SQL> CREATE TABLE employee
  2  (employee_id         NUMBER(7),
  3   last_name           VARCHAR2(25),
  4   first_name          VARCHAR2(25),
  5   userid              VARCHAR2(8),
  6   start_date          DATE,
  7   comments            VARCHAR2(255),
  8   manager_id          NUMBER(7),
  9   title               VARCHAR2(25),
 10   department_id       NUMBER(7),
 11   salary              NUMBER(112),
 12   commission_pct      NUMBER(42)
 13  );

Table created.

SQL>
SQL> INSERT INTO employee VALUES (1'V''Ben', 'cv',to_date('03-MAR-90 8:30', 'dd-mon-yy hh24:mi'),NULL, NULL, 'PRESIDENT', 502500, NULL);

row created.

SQL> INSERT INTO employee VALUES (2'N''Haidy', 'ln', '08-MAR-90', NULL,1'VP, OPERATIONS', 411450, NULL);

row created.

SQL> INSERT INTO employee VALUES (3'N''Molly', 'mn', '17-JUN-91',NULL, 1'VP, SALES', 311400, NULL);

row created.

SQL> INSERT INTO employee VALUES (4'S''Mark', 'mq', '07-APR-90',NULL, 1'VP, FINANCE', 101450, NULL);

row created.

SQL> INSERT INTO employee VALUES (5'R''AUDRY', 'ar', '04-MAR-90',NULL, 1'VP, ADMINISTRATION', 501550, NULL);

row created.

SQL> INSERT INTO employee VALUES (6'U''MOLLY', 'mu', '18-JAN-91',NULL, 2'WAREHOUSE MANAGER', 411200, NULL);

row created.

SQL> INSERT INTO employee VALUES (7'M''ROBERTA', 'rm', '14-MAY-90',NULL, 2'WAREHOUSE MANAGER', 411250, NULL);

row created.

SQL> INSERT INTO employee VALUES (8'B''BEN', 'ry', '07-APR-90', NULL, 2,'WAREHOUSE MANAGER', 411100, NULL);

row created.

SQL> INSERT INTO employee VALUES (9'C''Jane', 'ac', '09-FEB-92',NULL, 2'WAREHOUSE MANAGER', 411300, NULL);

row created.

SQL> INSERT INTO employee VALUES (10,'H''Mart', 'mh', '27-FEB-91', NULL, 2,'WAREHOUSE MANAGER', 411307, NULL);

row created.

SQL>
SQL> SELECT DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID"Block Number",
  2          DBMS_ROWID.ROWID_ROW_NUMBER(ROWID"Row in Block",
  3          employee_id
  4  FROM    employee;

       42570            0           1
       42570            1           2
       42570            2           3
       42570            3           4
       42570            4           5
       42570            5           6
       42570            6           7
       42570            7           8
       42570            8           9
       42570            9          10

10 rows selected.

SQL>
SQL> drop table employee;

Table dropped.
31. 23. dbms_rowid
31. 23. 1. Use dbms_rowid.rowid_block_number
31. 23. 2. DBMS_ROWID.ROWID_TO_RESTRICTED
31. 23. 3. DBMS_ROWID.ROWID_BLOCK_NUMBER and DBMS_ROWID.ROWID_ROW_NUMBER
31. 23. 4. Max # Rows/Block
31. 23. 5. Min # Rows/BLock
31. 23. 6. Avg # Rows/Block
31. 23. 7. Distinct Blocks
31. 23. 8. DBMS_ROWID.ROWID_RELATIVE_FNO(RowID)
31. 23. 9. DBMS_ROWID.ROWID_RELATIVE_FNO(RowID),DBMS_ROWID.ROWID_BLOCK_NUMBER(RowID)
31. 23. 10. DBMS_ROWID.ROWID_ROW_NUMBER(RowID)
31. 23. 11. DBMS_ROWID.ROWID_TO_RESTRICTED(RowID,0)
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