Create tables, please do add extra columns of your own choice in each table, insert rows and select rows with different criteria as we discussed in the class. Also, implement inner and outer joins on fields of your choice. Send me the screen shots of row selections and inner and outer joins. create table author_tbl( id INT NOT NULL AUTO_INCREMENT, author VARCHAR(40) NOT NULL, PRIMARY KEY ( id ) ); insert into author_tbl (author) VALUES ('John Smith'); insert into author_tbl (author) VALUES ('Melissa Ding'); insert into author_tbl (author) VALUES ('Robert Smith'); insert into author_tbl (author) VALUES ('Jeena Lui'); insert into author_tbl (author) VALUES ('Zoe Sing'); insert into author_tbl (author) VALUES ('Tessa Baker'); insert into author_tbl (author) VALUES ('Nancy Pelosi'); insert into author_tbl (author) VALUES ('Paul Pelosi'); insert into author_tbl (author) VALUES ('Smith Smith'); insert into author_tbl (author) VALUES ('John Zhang'); create table tutorials_tbl( id INT NOT NULL AUTO_INCREMENT, tutorial_title VARCHAR(100) NOT NULL, author_id INT NOT NULL, PRIMARY KEY ( id ), FOREIGN KEY (author_id) );
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.
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