Practice - Structured Query Language (SQL) - Part 1
Practice Questions
Test your understanding with targeted questions
What command is used to create a new table in SQL?
💡 Hint: Think about the initial step of database design.
Which SQL command retrieves data from a database?
💡 Hint: This command is often the first step in querying data.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What SQL command is used to delete a table?
💡 Hint: Think about removing permanent structures in a database.
True or False: A UNIQUE constraint allows for multiple NULL values.
💡 Hint: Consider how NULL values are treated in constraints.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Consider a Students table. Create a SQL command that defines the table with appropriate constraints and detail reasoning for each type.
💡 Hint: Think about what ensures the integrity of student data.
You have a database named University with a Courses table. Write the SQL command to delete this table, considering its data and any related constraints.
💡 Hint: What happens to the data when using DROP?
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Reference links
Supplementary resources to enhance your learning experience.