In which of the six stages of DBLC does the data dictionary come into play?
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In which of the six stages of DBLC does the data dictionary come into play?
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- What exactly is metadata? What exactly is metadata in the context of a result set? When is it OK to utilise metadata from a result set?Answer the following prompts 1The InstantRide Management team founded a new team for car maintenance. The new team is responsible for the small maintenance operations for the cars in the InstantRide system. The main idea is to take actions faster and minimize the time spent for the maintenance. Therefore, the Car Maintenance team wants to store MAINTENANCE_TYPE_ID (char(5)) and a MAINTENANCE_TYPE_DESCRIPTION (varchar(30)) in the database. Using MAINTENANCE_TYPE_ID as the PRIMARY KEY, create a new table, MAINTENANCE_TYPES, and send the table description with the column names and types to the Car Maintenance team. 2The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENANCE_TYPE_ID…Do any data structure components need to be recognized all the way up at the database layer?
- What does it imply for the data dictionary to be called that?The vocabulary of data terms should be explained in a few words. As time goes on, the data dictionary grows bigger and bigger, and it has more and more things in it.name PERSON address salary fee EMPLOYEE STUDENT thesis RESEARCH TEACHING POST GRAD UNDER GRAD Year = 4 FINAL YEAR LECTURER TUTOR SUPERVISOR project courseno PART II: University Database in MYSQL • Create a database and its tables and constraints based on the relational model of PART I. • You can use my slides and any other resources to complete this exercise. • Submit the SQL statements you used to create the database and its tables (you can copy/paste directly from the mysql console).
- How can the ADO .NET support different DB engines?How are secondary indexes and clustering indices different from one another?A database at a college must support the following requirements: a. For a department, store its number and name. b. For an advisor, store his or her number, last name, first name, and the department number to which the advisor is assigned. c. For a course, store its code and description (for example, DBA210, SQL Programming). d. For a student, store his or her number, first name, and last name. For each course the student takes, store the course code, course description, and grade earned. Also, store the number and name of the student's advisor. Assume that an advisor might advise any number of students but that each student has just one advisor. Design the database for the preceding set of requirements. Determine any functional dependencies. List the tables, columns, and relationships. In addition, represent your design with an E-R diagram.
