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Access the root block of the index. - Go through the branch blocks to locate the leaf block containing the first keys.
- For each key fulfilling the search criteria, do the following:
Extract the rowid referencing the data block.
Access the data block referenced by the rowid.
本文详细介绍了通过索引进行数据查找的过程。首先访问索引的根块,然后遍历分支块来定位包含首个关键字的叶块。对于符合搜索条件的每个关键字,提取引用数据块的行标识符,并访问该行标识符所指向的数据块。
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