In CRC, show the relationship between the following entities (size means the number of bits): a. The size of the dataword and the size of the codeword b. The size of the divisor and the remainder c. The degree of the polynomial generator and the size of the divisor
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- In this essay, we will talk about the advantages that MongoDB has over relational data structures.Define transitive dependence in the context of databases.Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B) Tid U(uid, C) Uid R(sid, tid, D) sid, tid Q(tid, uid, E) tid, uid Here R implements a many-to-many relationship between the entities implemented with tables S and T, and Q implements a many-to-many relationship between the entities implemented with tables T and U. A. Write an SQL query that returns all records of the form sid, uid where sid is the key of an S- record and uid is the key of a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. B. Write an SQL query that returns records of the form A, C where the A-value is from an S- record and the C-value is from a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. C. Could one of your queries from parts (a) and (b) return more records than the other? If so, which one? Justify your answer. D.…
- Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B) Tid U(uid, C) Uid R(sid, tid, D) sid, tid Q(tid, uid, E) tid, uid Here R implements a many-to-many relationship between the entities implemented with tables S and T, and Q implements a many-to-many relationship between the entities implemented with tables T and U. A. Write an SQL query that returns all records of the form sid, uid where sid is the key of an Srecord and uid is the key of a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. B. Write an SQL query that returns records of the form A, C where the A-value is from an Srecord and the C-value is from a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. C. Could one of your queries from parts (a) and (b) return…In the database world, the starting point for uncertain data representations is that of the c-table. A True B FalseGenerate the table creation DDL for the schema. Consider the keysprimary and foreign.
- How do data constraints differ when working with serialized data like JSON or XML in databases compared to primitive datatypes?This article describes three distinct situations in which it may be appropriate to use a surrogate key instead of the connection's primary key.question 1: A) Extensible Markup Language (XML) is a specific type of databases that represents data elements in textual format Select one: True False B) If the corresponding columns of two relations R1 and R2 are of the same type and the two relations have the same number of columns, we can say that R1 and R2 are intersection compatible. Select one: True False