Exadata?????????INSERT?UPDATE
- by Liu Maclean(???)
Hybrid Columnar Compression??????Exadata?????????????,??????????(advanced compression)??,Hybrid columnar compression (HCC) ???Exadata????????HCC???????????CU(compression unit?????),??CU??????????,?????????????????????????,???CU????block???????????????
???????INSERT/UPDATE??,??????????????,????UPDATE/INSERT???HCC??????????????????
hybrid…