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MySQL statements for extending the database to incorporate new facilities
Deliverables for submission
You must submit the following deliverables in the Assignment Dropbox in Blackboard by the stated FMA submission deadline for your class:
A single zip file named yourusername_dtfma.zip containing the deliverables specified below.
Note: The zip file must be submitted in .zip format. Other formats (such as .rar) are not acceptable and will not be marked.
1. The queries that you produced for (3) above. Each query should be in a separate .txt or .qbquery file named yourusername_qryx (replacing yourusername with your ITS username and x with the query number.
2. A report covering the requirements listed in (5) above. The report should be submitted as either a Word or .pdf document and named yourusername_dtfma_report (replacing yourusername with your ITS username).
Increased parallelism : Since the replicated date has several copies a query can be distributed or can be answered from the smallest loaded site. Also, with more replicas you have
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
Multiple column Queries: Syntax: SELECT COLUMN1, COL2,...... FROM TABLE WHERE (COLUMN1, COL2, ...) IN (SELECT COLUMN1, COL2,.... FROM TABLE WHERE );
Describe multi key files
write-set(T): Each data items that are written by a transaction T
Suppose R is a relation with attributes A1, A2,..., An. As a function of n, tell how many superkeys R has, if: 1.1 The only key is A1. 1.2 The only key is A1 and A2. 1.3 The o
Explain data dictonary on oracle ? Data Dictionary - Data dictionaries are the system tables in which contain descriptions of the database objects and how they are structured.
Which operator is Cartesian product in relational algebra? Cartesian product in relational algebra is a binary operator. (It requires two operands. e.g., P X Q)
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