Create and query tables
In this subject, participants learn the basic and advanced techniques for creating and querying database tables. At the beginning, the focus is on creating tables. Participants will learn how to define and structure new tables in a database using the 'CREATE TABLE' statement.
The course then moves on to querying data. Participants will learn the basic `SELECT` statement, which can be used to retrieve data from tables. In addition, techniques for creating complex queries are taught in order to extract detailed and specific information from large data sets.
Another important part of the subject is the introduction to primary and foreign keys. Students will learn how to define primary keys to identify unique records in a table and how foreign keys are used to create and manage relationships between tables.
The course then moves on to querying data. Participants will learn the basic `SELECT` statement, which can be used to retrieve data from tables. In addition, techniques for creating complex queries are taught in order to extract detailed and specific information from large data sets.
Another important part of the subject is the introduction to primary and foreign keys. Students will learn how to define primary keys to identify unique records in a table and how foreign keys are used to create and manage relationships between tables.
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