What is the difference between varchar2 and varchar data type. Which among these two is having more advantage. sql
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What is the difference between varchar2 and varchar data type. Which among these two is having more advantage.
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- Which of the following is not a type of mismatch that occurs while mixing SQL with other procedural languages? Choose an answer A Data type mismatch B Compiler-time mismatch C Processing mismatch D Run-time mismatchAnswer the questions using the database below. Tables and data contained in the database of a company that sells stationery products are given below. 1. Write the query listing the number and name of the customer who ordered the maximum quantity of the product named "Pen". When answering the questions, assume that each order will contain one type of product. PK: Primary Key FK: Foreign Key The queries should be prepared in MAMP program to run in MySQL. Trigger will be created by typing SQL command, not interfaceWhat is your opinion on the significance of server-side languages like PHP? How much of a deal is this in terms of SQL?
- A better design would be one with the following tables: Patient : | pid | name | dob | addr | tel | Exam : | acc | pid | eid | result | date | ExamDictionary : | eid | name | normal | Questions: Create SQL queries (select statements) that accomplish the following. 1. List all of the Exams for Ms. Jones (pid=12). 2. List all of the Patients that hail from jolly old London. 3. List all of the Exams with results that exceed their normal. 4. List the name of all Patients that had Exams with results that exceed their (the exam’s) normal. 5. List the name of all Patients that had Exams with results that exceed their (the exam’s) normal, but list names only once and in alphabetical order.QUESTION 6 is a database object that groups logically related PL/SQL types, objects, functions, and procedures. O A. Body B. Module C. Name O D. PackageStructured Query Language (SQL) is a language widely used in industry to create, update andquery data in relational databases. You are required to write the SQL code.Q.6.1 The below sample data in the third normal form was provided by a databasedesigner. Answer the below questions using this data. Q.6.1.1 Write a SQL statement to create the table Lawyer.Hint: The sample data should give you an indication of the datatypes you should use. Q.6.1.2 Write a SQL statement that will calculate the average age of all thelawyers that are at least 40 years old. Q.6.1.3 Write a SQL statement to insert the below row into table LawFirm.
- . Consider the following data among 110 students in our IT department: 30 students are taking a course in SQL,35 students are taking a course in JAVA, 20 students are taking both the courses. Find the number of students: (a) taking SQL or JAVA (b) taking exactly one of the two courses (c) not taking both the courses.What is your opinion on the importance of server-side languages like PHP? How significant is this for SQL, exactly?One of the junior database developers has encountered some errors in a query they are working on. The junior developer has requested some assistance from you to solve their errors. Consider the following PL/SQL query: turn serveroutput ondeclaring cust customer.first_name%Type;prod product.product%Type;cursor info isselect cust.first_name || ', ' || cust.surname CUSTOMER, p.productfrom customer cust, billing b, product_billing pb, product pwhere cust.customer_id = b.customer_idwhere b.bill_id = pb.bill_idand p.product_id = pb.product_idand p.price > 10000ordering by p.price;beginsfor rec in infoloopingcust:= rec.CUSTOMER;prod:= rec.product; dbms_output.put_line('CUSTOMER: ' || cust || chr(13) || 'PRODUCT: ' || prod);dbms_output.put_line('------------------------------------');end loop;end; Q.2.1 The code above has errors. Identify the errors and rewrite the code so that it would produce a valid output for the junior database developer.
- This Data in SQL workbench does not work, can someone help me -- Create Company Database CREATE DATABASE Company; -- Use above created Database USE Company; -- Create Customer Table CREATE TABLE Customers ( [Last Name] varchar(255), [First Name] varchar(255), Address varchar(255), City varchar(255), State varchar(100), ZIP int, Tel varchar(100) ); -- Insert data into Customers Table INSERT INTO Customers VALUES ('Smith','Alex','2 South ST','Newark','NJ',07104,'9174251243'), ('Boden','Paul','21 North St','Bergen','NJ',07047,'9083421987'), ('Price','Mary','Apt 3, 11th Ave','NY','NY',10074,'2128137658'), ('Burton','Jane','7 Maple Ave','Tampa','FL',33605,'8132341956'), ('Wang','Jeff','20 Northern BLVD','LA','CA',90006,'2134314356'); -- Create Products Table CREATE TABLE Products ( [Product Name] varchar(255), Category varchar(255), Price float, Quantity int, Received date ); -- Insert data into Products Table INSERT INTO Products VALUES ('3D…Is it crucial to have server-side scripting like PHP? Does sql really need this?Write a detailed reflection on “Comparison of NoSQL and SQL Databases in the Cloud”. You can include some more resources for building up your reflection. The web link to a research paper “Comparison of NoSQL and SQL Databases in the Cloud” is given in the college Moodle web page (hyperlink of the research article is given below): https://vulms.vu.edu.pk/Courses/BIT703/Downloads/HammesEtal.pdf
