The Model View is where relationships are drawn between tables? True False
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The Model View is where relationships are drawn between tables?
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- The marketing team wants to celebrate the success of StayWell with a party. The team wants a table with the names of all residents and owners combined into single column named PARTICIPANT. You need to combine this information from the tables and send it back to the team. You do not need to create a new table in the database schema. Task Return a list of all the residents and ownersExplain Disallow null keys in fact tables?what happens when we create our tables with relationships and then have to modify the relationship? can we do this if the data is in the tables?
- A Parent-Child connection exists between two tables when one holds the primary key of the other as an attribute. Tables are connected B-to-many. C Network-like tables. D Tables are linked as one-to-many connections.That is not the answer to the above question. Please create CKY tables for the question that was asked.Since we build tables in Microsoft Access, how do we pick a model?
- Note that primary keys are in BOLD. Note also that attributes with the same name in different tables are foreign keys. For example, doctorID in the Treatment table is a foreign key that refers to the Doctor table. Doctor(doctorId:integer, specialtyID:integer, firstName:varchar(20), lastName:varchar(20), salary:numeric(11,2)) Specialty(specialtyID:integer, specialtyName:varchar(20), specialtyCost:numeric(11,2)) Treatment(doctorId:integer, patientSSN:integer, dateTreated:date, costOfTreatment:numeric(11,2)) Patient(patientSSN:integer, firstName:varchar(20), lastName:varchar(20), street:varchar(30), city:varchar(15), state:char(2),zipCode:integer(5)) 2.3) Write an SQL statement to increase the cost of all Specialty treatment by 2.5% 2.4) Write a SQL statement to delete all treatment rows that were done before 2015 and cost less than $500. 2.5) Write an SQL statement to select all Specialties where the specialtytName has a null valueBased on the information below, what would be the attributes for the bridge tables? I know the order table is the bridge between the caretaker and menu tables Include any Primary keys and foreign keys along with the data types for all attributes.What exactly is a main key? How crucial is the main key in establishing a link between tables?
- Why are some table structures considered to be bad and others good?How do you recognize the difference between good and bad table structures?What effect does normalization have on creating good tables and why should you learn so many normalization rules?Oracle 12c: SQL The JustLee DB contains a table called PROMOTION. It does not have any of the relationships to other tables we discussed last week. It is not a one-to-one, one-to-many, or many-to-many relationship. There is no crowfoot on the ER diagram related to this table. However, there IS a relationship depicted in the ER diagram between the PROMOTION and the BOOKS tables. What kind of relationship do you think it is? Please check the structure of these two tables and the data contained in them in your ApEx schema running SQL commands using the clauses you have learned this week. Which commands did you use and what results did you see?If something is transitive, what does that entail? What is the rule for converting tables from the second normal form to the third normal form?