rowid ํ”„๋กœํ•„

  rowid    rowid               id๏ผŒ oracle 8    ๏ผŒrowid file# block# row#  ๏ผŒ  6 bytes   ๏ผŒ10 bit   file# ๏ผŒ22bit   block# ๏ผŒ16 bit   row#ใ€‚   oracle 8  rowid   extend rowid๏ผŒ data_object_id# rfile# block# row#  ๏ผŒ  10 bytes   ๏ผŒ 32bit  data_object_id#,10 bit   rfile#,22bit   block#,16 bit   row#.  rowid    file#   rfile#๏ผŒ                   1023             1023      ใ€‚   rowid   ๏ผŒ        rowid                  ใ€‚ oracle 8        rowid       6bytes, oracle8  ๏ผŒ  oracle   extend rowid๏ผŒ              bytes rowid๏ผŒ   global index     10bytes extend rowid๏ผŒ extend rowid  global index         ๏ผŒ         ใ€‚     golbal index   data_object_id#    index rowid entry  ๏ผŸ         ๏ผŸ        index rowid entry                             ๏ผŒ              ๏ผŒ   block๏ผŒ    ๏ผŒ      oracle  rfile#,block#,row#      ๏ผŒ  partition table          ๏ผŒ              ๏ผŒ     local index ๏ผŒindex rowid entry    data_object_id#๏ผŒ  oracle      index       table  ๏ผŒ     table    ts#(tablespace )๏ผŒ  oracle  ts# rfile#            ใ€‚       golbal index๏ผŒ     data_object_id#๏ผŒ                     ๏ผŒ         rfile# file#      ๏ผŒ             ใ€‚  data_object_id# ,oracle    data_object_id#  rfile#  file#                ใ€‚                     file# rfile#   ใ€‚ 

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