Create an Inline Salesforce object query language (SOQL) to find the contact id and name of the contact object in the descending order.
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A: For custom objects - To use History tracking we need to use the object name -…
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A: Explain Business Rule and its relevance to database design
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A: To find which field used to link a child table to a parent table in a relational database.
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A: A parent is a 1:N relationship row on one side. A child is a row in a 1:N ratio on many sides. Say…
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A: The question is to give an example of a real-world SQL database, as well as an explanation of the…
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A: Answer:
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A: Please find the answer below :
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A: "functional dependence" and "transitive dependency" are discussed below.
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A: what are repercussions of designing database without normalization? is database still functional?
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A: Explain why database design is critical in the educational setting.
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A: Introduction: When using subtype associations, it's vital to talk about the different database table…
Q: What are homonyms and synonyms, and why should they be avoided in database design?
A: What are homonyms and synonyms, and why should they be avoided in database design?
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A: Introduction: In SQL Developer, you may insert a DML statement in the Worksheet. To access and…
Q: Salesforce / SOQL Design a SOQL Query to fetch the activity hisoty corressponding to a object.…
A: SOQL query to track the activity history of any object is below:
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A: Introduction: A database is a logically organised collection of structured data kept electronically…
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A: Introduction: It's a data column that denotes a certain feature or function. A database attribute's…
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A: Given:
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A: I have given an answer in step 2.
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A: Explanation: In the Relational Model, the database is represented as a series of connections (RM). A…
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A: Given To examine the differences between on-premise and cloud-based database management solutions.
Q: What are the four characteristics of a well built relational database table?
A: Introduction: DBMS: DBMS is an abbreviation for database management system, which is a software…
Q: Generate the table creation DDL for the schema. Consider the keys primary and foreign.
A: The DDL stands for Data Definition language. The commands of DDL are : Create Alter Truncate Drop.
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A: Introduction: DBMS: DBMS is an abbreviation for database management system, which is a software…
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A: Defined the given statement
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A: As per our policy, we can solve one question at a time if you need the second answer please post it…
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A: The collection of all the concepts that must be used to describe database structure is called
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- Create an Inline Salesforce object query language (SOQL) to find the contact id and name of the contact object in the descending order.Modify the recursive query in Figure 5.16 to define a relationprereq_depth(course_id, prereq_id, depth) where the attribute depth indicates how many levels of intermediate prerequisites there are between the course and the prerequisite. Direct prerequisites havea depth of 0. Note that a prerequisite course may have multiple depths and thusmay appear more than once.The aim of assignment 1 is to implement a database schema and execute different types of SQL queries in Oracle SQL developer. Given the following relational schema: Student (studid, FirstName, LastName, Email, phoneNumber, DateofBirth, GPA) Club (clubid, ClubName, #studid) MemberOf (#clubid, #studid, joiningDate ) Activities (actid, actdt, place, durationNbHour) Organize (#actid , #clubid , fee) 1. Write SQL queries to create the following tables according to the below descriptions. Table name: Student studid |Char(9) Primary key FirstName Varchar2(50) NOT NULL LastName Varchar2(50) NOT NULL Email Varchar2(50) NOT NULL, UNIQUE phoneNumber Number(8) NOT NULL, UNIQUE DateofBirth Date NOT NULL GPA Number(1,2) NOT NULL Table name: Club clubID Number(3) Primary key ClubName Varchar2(20)NOT NULL NULL, UNIQUE, NOT Foreign key studid Char(9) Table Name: MemberOf ClubID Number(3) Primary Key, Foreign Key Studid Char(9) Primary Key, Foreign Key joiningDate Date Table Name: Activities Actid…
- Using the getFirst() function as a template for reference, code the saveProduct() function that will be called when the save button of the depicted screen is clicked. The text from the JTextFields will be used as parameters.The database schema for the SQL tables are also depicted. The number of the product is the primary key and is set to auto-increment. public Product getFirst() { if (openConnection()) { try{ Product temp = null; String query = "SELECT * FROM products order by number asc limit 1"; // our SQL SELECT query. Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY); // create the java statement ResultSet rs = st.executeQuery(query);// execute the query, and get a java resultset while (rs.next()) // iterate through the java resultset { temp = new…In order to demonstrate a single row function within a database, we employed a function referred to as "single row". Is the function scalar or vector-valued? Which option is superior?Write the SQLite querys for the give lab tasks in image attached according to the database relation image
- Create an MVC web application having the index view given below. The given view will be populated from the model book having data members (Id, Title). Write only the code for the model class with the action SubmitImg() to submit the data in the database table book(id, title). Use suitable data annotations attributes to perform empty field validation also. No need to write view code.How do data validation constraints apply to columns with XML data types in relational databases?Using the WideWorldDistributors database and the Sales schema create a function that takes InvoiceID as an input parameter and returns all the rows from the table InvoiceLines for the InvoiceID value passed into the function. If the result is a NULL return a zero
- Enlist the disadvantages of query.WRITE THE CODE OF MYSQL IN PYTHON Create database and tables as given below by using Python. (a) Market database (b) Vendor: vendor_id integer, vendor_name varchar, license_start date, license_end date (c) Item: item_id integer, item_name varchar, item_type varchar, previous_price float, last_sold_date date (d) Auction: auction_id integer, vendor_id integer, item_id integer, price float Choose primary and foreign keys depending on the relations in Market database design.1. Create a PL/SQL function. The minimal requirements: using the cursor in PLSQL function, retrieve data from object table and record the data in the PL/SQL table, make calculations with object data and define return value of the function, test the operation of the function (get the result). The maximal requirements: you can add IF-ELSEIF's, cursor processing in loops, more interesting semantic functions. 2. Create methods for object types. The minimal requirements: use map/order methods (1 method) (method+ demonstration), use MEMBER methods (2 methods) (methods + demonstration). The maximal requirements: non-trivial methods, that use more complex comparisons or do more complex calculations – i.e., give a couple more constructs in code. 3. Demonstrate the multiset operators. The minimal requirements: using 2 different multiset operators (can be included in the code), they can also be used in the The maximal requirements: the queries make sense semantically, one of the queries is a…