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The document discusses basic concepts of relational databases including tables, records, attributes, and how data is organized and related between tables. It also summarizes common operations for managing data like CREATE, INSERT, SELECT, UPDATE, DELETE and DROP and provides examples of using these operations to work with a sample contacts table.
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The document provides an overview of SQL and database implementation. It discusses SQL environments, data types, database definition using DDL statements to create tables and views, and DML statements for data manipulation including SELECT, INSERT, UPDATE, DELETE. Examples are provided for each statement type. The SELECT statement is discussed in more depth, with examples demonstrating clauses like WHERE, ORDER BY, GROUP BY, HAVING, functions and operators.
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