ocr: FIGURE 1: Good clustering Vs. poor clustering. Good clustering can reduce CPU time, clapsed times, disk 1/0, and wasted space, because the order of the rows in the table follows the order of the index entries in the lcaf blocks. Poor clustering makes retrieving data for a given key disorganized, and the associated rows for that koy in the table may be scattered across many noncontiguous blocks, Good Clustering Poor Clustering Root Block (indexi 8-level Bronch Bocks) index) - - -2 - - - Blocks (roblel - - - Leal Blocks indexj - - - - - - : Data
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