Podcast
Questions and Answers
Match the following SQL commands with their functions:
Match the following SQL commands with their functions:
SELECT = Retrieves data from a database UPDATE = Modifies existing data in a database DELETE = Removes rows from a table in a database INSERT = Adds new rows of data into a database table
Match the following database models with their characteristics:
Match the following database models with their characteristics:
Relational Model = Organizes data into one or more tables with a unique key for each row Hierarchical Model = Organizes data in a tree-like structure with parent-child relationships Network Model = Allows each record to have multiple parent and child records Object-Oriented Model = Represents data as objects with attributes and methods
Match the following RDBMS components with their functions:
Match the following RDBMS components with their functions:
Table = Stores data in rows and columns Index = Improves query performance by providing faster access to data View = Virtual table created as a result of a SELECT query Trigger = Automatically executes a set of actions when a specified event occurs
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Study Notes
Match the following SQL commands with their functions: Match the following database models with their characteristics: Match the following RDBMS components with their functions:
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