Consider the following table Xbox_Games(name, price) and assume that these values already exist in the database ('ok_game', 40), ('good_game', 50), ('AWESOME_game', 60). We have the following two transactions: T1: BEGIN TRANSACTION S1: UPDATE Xbox_Games SET price=22 WHERE name =' ok_game' S2: INSERT INTO Xbox_Games VALUES ('Another_Game', 0) S3: UPDATE Xbox_Games SET price=38 WHERE name =' ok_game' COMMIT T2: BEGIN TRANSACTION sS: SELECT AVG{price} AS average_price FROM Xbox_Games COMMIT; Above two transactions are hitting the DBMS ro

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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.