consider the insurance database where the primary keys are underlined

. Employee (empname, street, city) Works (empname, companyname, salary) Company (companyname, city) Manages (empname, managername) And given an expression in SQL for the following queries: (1) Find the names of all employees who work for First Bank Corporation. Find the total number of . Primary Key Constraints A set of attributes is a key for a relation if: 1.no two distinct tuples have the same values for all key attributes, and 2.this is not true for any subset of that key. 4.2 Consider the employee database of Figure 4.13, where the primary keys are un-derlined. BCA304P: DATABASE MANAGEMENT SYSTEM LAB PART - A The STUDENT detail databases has a table with the following attributes. 1 Answer. a. Assume each relation is filled with 10 tuples with all attributes having suitable domain-specific values and no null entries. 1)Create the above tables by properly specifying the primary keys and foreign keys. If A Contains 0 or 1 elements then it is already sorted, otherwise, Divide A into two sub-array of equal number of elements. Add a new accident to the database; assume any values for required attributes. . The primary keys are underlined and the data types are specified: PERSON( driver-id :string,name:string,address:string) . The primary. Consider the employee database , where the primary keys are Underlined. e) Find the total number of people who owned cars that were involved in accidents in the year 2002. Enter the email address you signed up with and we'll email you a reset link. Consider the insurance database of Figure, where the primary keys are underlined. Share icon. . a. 3.4 Consider the insurance database of Figure 3.18, where the primary keys are underlined. I. Which you would choose as a primary key. STUDENT(regno: int, name: string, dob: date, marks: int) i) Create the above table. 4.1Consider the insurance database of Figure 4.12, where the primary keys are un- derlined. In the example database, the "is taking" relationship would be converted into Enrolled(ssn, crn, gradeOption, credits) In the case of a recursive many-to-many relationship, it is necessary to rename the primary keys borrowed from the related entity sets. Construct the following SQL queries for this relational database. For each part of this question (considered independently of the other parts), write a single SQL statement that accomplishes the given requirements. The primary keys are underlined and the datatypes are specified. a. Construct the following SQL queries for this relational database. Consider the Insurance database given below. b. 3. The ER Model represents real-world entities and the relationships between them. 19 views 0 comments. PERSON (DRIVER_ID#: STRING, NAME: STRING, ADDRESS: STRONG) . Consider the relational database, where the primary keys are underlined. b) Enter at least five tuples for each relation c) Update the damage amount for each car accident. Consider the insurance database given below Person(Driver_ID,Name,Address) Car(License,Model,Year) Accident(ReportNumber,Date,Location) Owns(Driver_ID,License) Participated(Driver_ID,Car,ReportNumber,DamageAmount) Construct SQL statements for the above relations Find the total number of people who owned cars that were involved in accidents in 2004. b. Consider the following insurance database , where the primary keys are underlined. Candidate Key - A Candidate Key can be any column or a combination of columns that can qualify as unique key in database. PERSON ( driver - id# : String, name : string, address : strong ) CAR ( Regno : string, model : string, year : int) ACCIDENT ( report-number : int, date : date, location : string ) N:N Relationships. Add new accident to Database. Specify the key attributes of each relation. Construct the following SQL queries for this relational database. If not, please ask for clarification. a. 0.25x 0.5x 0.75x 1.0x 1.25x 1.5x 1.75x 2x. any help would be appreciated. Find the total number of people who owned cars that were involved in accidents in 1989. b. PRIMARY KEY FOREIGN KEY Primary key uniquely identify a record in the table. b. Collapse sidebar. employee (empname,street,city) works (empname,companyname,salary) company (companyname,city) manages (empname,management) Give an expression in the relational algebra for each request. Produce a listing: CUSTNAME, #oforders, AVG_ORDER_AMT, where the middle column is the total numbers of orders by the customer. Question. b. d) Add a new accident to the database. Consider the Insurance database given below, where the primary keys are underlined. Consider the insurance database of Figure 3.17, where the primary keys are underlined. possible keys: a) SSN b) birth date, address, name c) name, address d) address, income For each one indicate for each one if it is one or more of the following: candidate key, a super key. Find the names and cities of residence of all employees who work for First Bank Corporation. 25 views 0 comments. Consider the Insurance database given below. Find the names of all employees who work for the First Bank Corporation. c. Delete … Also, a country can have many people. a. . a. Each Candidate Key can qualify as Primary Key. Example: CREATE DATABASE SW. A new database named SW is created by the SQL statement CREATE DATABASE SW. Once the database is created, the next step is to create the database tables. Expert Answer. Keys are (mostly) underlined. First show all the functional dependencies that should hold among the attributes. ER model helps to systematically analyze data requirements to produce a well-designed database. Find the number of accidents in which the cars belonging to "John Smith" were involved. The column constraint NULL indicates that null values are allowed, which means . Understand what data is to be stored, and what operations and requirements are desired. Post not marked as liked. THE PRIMARY KEYS ARE UNDERLINED AND THE DATATYPES ARE SPECIFIED PERSON (driver-id# : String, name : String, address : String ) CAR (regno : String, model : String, year: int ) ACCIDENT (report-number : int, date : date, location : String ) OWNS (driver-id# : String, regno : String . Consider the employee database of the below figure, where the primary keys are (3 marks) underlined. The primary keys are underlined and the datatypes are specified. DATABASE DESIGN: NORMALIZATION Q & A Examine the Patient Medication Form for the Wellmeadows Hospital case study shown in Figure (a) Identify the functional dependencies represented by the data shown in the form in Figure . A circle with its left hemisphere filled Visual Adjustments. Find the total number of people who owned cars that were involved in accidents in 2017. b. Delete all year-2010 cars belonging to the person whose ID is '12345'. Construct the followingSQLqueries for this relational database. Find the total number of people who owned cars that were involved in accidents in 1989. b. Specifically, we address the problem of entity matching-identifying which entity in one da-tabase is the same as an entity in a different database. Construct the following SQL queries for this relational database. Give an expression inSQLfor each of the following queries. SSNs as primary keys (except for financial data). ?, where the primary keys are underlined. School Saudi Electronic University Course Title IT 244 Type Homework Help Uploaded By 8BDE16 Pages 3 Ratings 100% (2) This preview shows page 1 - 2 out of 3 pages. Transcribed image text: Question 6 2 pts Consider the following relational database schema (primary keys are underlined; foreign keys are in italic, referring to the same attribute in a different table): Medical Centres (cid, centre, address) Patients (pid, name, date_of_birth, insurance) Appointments (aid, cid, pid, date, time . Construct the following SQL queries for this relational database. common primary or candidate key), one cannot tell whether these records in different databases represent the same person. Language (DCL) CS8492 Question Paper Database Management Systems. A primary key can be represented by adding an underline to one attribute. The primary key of the relation combines the primary keys of the related entity sets. Construct the following SQL queries for this relational database. Find the number of accidents in which the cars belonging to "John Smith" were involved. The primary keys are underlined. The project is object oriented one.So the primary requirement is the use of store and manipulate the numbers. Consider the simplified three level database system architecture of external (E), internal/physical (P) and conceptual/logical (L) levels. Construct the following SQL queries for this relational database. QUESTION :- CONSIDER THE insurance DATABASE GIVEN BELOW. Projects have a project number, a sponsor name (e.g., NSF), a starting date, an ending date, and a budget. Consider the insurance database of Figure 3.18, where the primary keys are underlined. A square with an arrow arcing out from the center of the square Share this book. Find total number of people who owned cars that are involved in accidents in 2004. ii. Find the names and cities of residence of all employees whowork for First Bank Corporation. Exercises 2.1 Explain the distinctions among the terms primary key, candidate key, and su-perkey. Construct the following QBE queries for this relational-database. Featuring clear examples using both Microsoft Access and Oracle, Databases: A Beginner's Guide begins by showing you how to use Structured Query Language (SQL) to create and access database objects. Construct the following QBE queries for this relational-database. Both foreign and primary keys must be of the same data type. 12. The primary keys are made bold and the data types are specified. Find the number of accidents in which the cars belonging to ﬁJohn Smithﬂ were involved. Add a new accident to the database; assume any values for required attributes. Alternate keys are all candidate keys not chosen as the primary key. Construct the following SQL queries for this relational database. Exercise 2.3 Consider the following information about a university database: Professors have an SSN, a name, an age, a rank, and a research specialty. 4. a. Find the number of accidents in which the cars belonging to "John Smith" were involved. Give an expression in SQL for each of the following queries. Exercises 5.1 Consider the insurance database of Figure 5.14, where the primary keys are underlined. A.Consider the insurance database of Figure 3.17,where the primary keys are underlined. Find the number of accidents involving a car belonging to a person named "John Smith". sets. primary key (report number,license) foriegn key (license) references car foriegn key (report number) references accident)) 3.14 Consider the insurance database of Figure 3.18, where the primary keys are underlined. 3rd SEM MCA LAB PROGRAMS. Find the total number of people who owned cars that were involved in accidents in 1989. b.

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