Figure 3-25: A BTree index. Figure 3-26: A (Personal web server)
Figure 3-25: A BTree index. Figure 3-26: A Bitmap index. Name Chris Laura Tina Lance Christina Craig Sex is M 1 0 0 1 0 1 Sex is F Bitmap 0 1 1 0 1 0 M for Male is set to 1 F for Female is set to 1 Ca Jo T A B Be Ca E Je Jo T Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Leaf Block Root node Branch nodes Indexed values + a pointer to each table row Values to left of Ca Values to right of Ca 67 Database Modeling Building Blocks
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