Create a table “PRODUCTS” with the below mentioned structure: Product ID NUMBER(11) Supplier ID NUMBER(11) Category ID NUMBER(11) Quantity Per Unit VARCHAR2(20) Unit Price NUMBER(11) Units In Stock NUMBER(11) Units On Order NUMBER(11) Product ID should be the Primary Key. 2) Consider the following tables: WORKS(Pname,Cname,Salary) LIVES(Pname,Street,City) LOCATED_IN(Cname,City) MANAGER(Pname,Mgername) Where Pname=Person name, Cname= Company name and Mgrname = Manager name. Write the SQL for the following: List the names of the people who work for the company Wipro along with the cities they live in.

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Q: Click the small + sign beside the employee with ID 149. What do you see? Why do you see it?

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A: Dear Student, The required query with explanation is given below -

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SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.  

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.