which index is also reffered to as a non-clustering index? a) Bidirectional Index b) Primary Index c) Hash Index d) Secondary Index
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which index is also reffered to as a non-clustering index?
a) Bidirectional Index
b) Primary Index
c) Hash Index
d) Secondary Index
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- python - Write the syntax for obtaining the index where X == 0.What's the difference between a secondary index and a grouping index?struct student { char name[20]; char studentID[10]; char phonenum [9]; char advisor [20]; float gpa; } Operations needed: addnewStudent { purpose: to create a new student in the database input: name, studentID.phonenum,advisor.gpa output: none } Name another operation besides add that we could use for our student data structure.
- Q) What data structure is used to implement HashSet?DATABASE: library (library_name [pk], City, Phone, manager_SSN[pk, fk]) book (book_name [pk], Genre, Country) borrower (SSN[pk], Name, Birthyear, Fav book [fk], Gender) likes (SSN[pk, fk], book [pk, fk]) bookLoans (library [fk], books [fk]) manager (SSN[pk], Name, City, Address, Phone) Provide OPTIMIZED relational algebra for the following queries: 1 a) List name, gender, and age of all borrowers. b) List all male borrowers older than 65 years of age. c) List the book names loaned by at least one library and liked by at least one borrower. d) List the name and ssn of all borrowers who like their favorite bookQUESTION 6 A dense index has an index for only some of the search values True False
- branch(branchhame, branch+citysassets} customer (HD, Customer name, customer street, customer city) loan loan number branch_name, amounty borrower(ID; loan_number account (account_number, branch name, balance)e depositor (HDs account number)- Figure le Consider the bank database in Figure 1, where the primary keys are underlined. Each branch might have many loans or accounts, associated with borrowers or depositors, respectively. Construct the following SQL queries for this relational database. 1. Find the name of each branch that has at least one customer who has an account in the bank and who lives in the "Harrison" city. Make sure each branch name only appears once. 2. Find the ID of each customer who lives on the same street and in the same city as customer "12345". (1) Please use "tuple variables". e (2) Please use "derived relations" or “with". 3. Find the ID of each customer of the bank who has an account but not a loan. 4. Find the total sum of all loan amounts for each branch…At what point is it appropriate to build an index by hand?What is a non-clustered index?