QI/ By Using the following schema, answer the following SQL queries and commands: Product(P_code,P_name, P_price, P_on_hand, vend_code) Vender(vend code, vend_fname, vend_areacode, vend_salary, vend country) 1- find the venders names who have salary less greater than the average salary of venders who sell in area code 7655. 2- find the code, name and vender code of product that has price between 1 5000S and 30000$ and the product that has price between 300S and 5800S. 3- Find the name of italian venders who has salary less than the average salary of venders. 4- Find the names and area code of iraqi venders. 5- Decrease the price of all product by 20%

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Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.