- What are the basic steps in Query Processing? (Ch 13) - What are the advantages of B+ trees? Give an example of B+ tree. - What are the advatages of Hash Indexes? Give an example of Hash Index. - what are performance Measures of Disks? Explain each of them. - Explain Storage Hierarchy of devices in computers. - Explain RAID level 1 and 5. - Exlain 4 levels of consistancy in SQL-92. - Ch14 slides 1-16,35. - Ch15 slides 1-8. - Ch16 slides 1-27