How to Doing "Update-Database" within your code in Entity Framework.
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- It is important to build a hybrid merge-join technique in order to accomplish the task of combining two relations that are not physically ordered but do share an index on the features that are in concern.Assignment Brief: Some of the most difficult decisions that you face as a database developer are what tables to create and what columns to place in each table, as well as how to relate the tables that you create. Normalization is the process of applying a series of rules to ensure that your database achieves optimal structure. Normal forms are a progression of these rules. Each successive normal form achieves a better database design than the previous form did. Based on your understanding for the various normal form respond to the following problems and provide the optimal answer/solution. Problem#1: 1st Normal Form (1NF) Consider the Students table, with the primary key underlined, and the following data: Students: Alpha 100111 Email doe@usna.edu Name Courses GradePoints NN204, SI204, IT221 SM223, EE301 SI204 John Doe 2,3,3 Matt Smith 092244 113221 smith@usna.edu black@usna.edu 4,4 Melinda 3 Black NN204, SI204, IT221 090112 Tom Johnson Johnson@usna.ed 4,2,3 u a) Is the Students table…Explain entity sets.
- How do Entity-Relationship (ER) diagrams aid in database design?Relational Model (Logical and Physical Schema Development) The conceptual model developed in phase 2 will be transformed into a logical and physical schema using the relational data model. The outcome of this transformation will be a relational schema. The schema should have the following components: Set of required relations All the integrity constraints Submission and Evaluation: A report consisting of the problem statement, ER diagram, relational schema And implement the database using SQL should include: All the tables properly defined /created All constraints properly defined For each table, few instances of data should be entered. Producer Pharmacy medicines The pharmacy contains employees, certain medicines customers and patients Date Name Customers age pharmacy sex employees Commercial Record Address Location Salary NameWhat type of relationship in the conceptual model is converted to an entity in the logical database design?
- Why do you think entity relationship (ER) diagrams are important in database design?When utilizing subtype associations, it is important to discuss the database table options that are available.Decide on the design you want to use and discuss the challenges that arise as a result of it.Sterile Reports Research Example ERD Problem Follow the Simple Procedure for ERD diagramming to design an ERD using the following user provided information. Remember the ERD will eventually turn into the design for a database from a top down view. Make sure you resolve any many to many conflicts. Label an identifier or primary key and all pertinent attributes given. If an attribute is not readily apparent from the user information, then make one up that makes sense for the particular entity. Therefore, all entities should end up with at least an identifier and another attribute that makes sense. Please use a drawing tool of some type to show the ERD diagram (Word, PowerPoint, and Visio all work well). I want you to get in the habit of drawing these with a computer instead of by hand, as this will be important as we get to more difficult examples. You may use any of the approaches shown by the book, though the ER-Model and Crow’s foot are the most common. Make sure you show…
- Data Modeling is the first phase in the process of database design and is the most important. Comparing and contrasting the Conceptual data model with the Physical data model is important. With the assistance of an example, demonstrates how to list down data (entities), relationships between data, and limitations on data.What are the advantages of using entity relationship (ER) diagrams in database design?Why is it that normalized relations do not jeopardize the efficiency of a physical implementation structure?