Podcast
Questions and Answers
Which SQL command is used for data retrieval?
Which SQL command is used for data retrieval?
- SELECT (correct)
- INSERT
- ADD
- UPDATE
How are tables perceived in a relational database?
How are tables perceived in a relational database?
- As a collection of columns
- As a collection of rows (correct)
- As a collection of records
- As a collection of files
What SQL statement is used to create empty tables?
What SQL statement is used to create empty tables?
- DEFINE TABLE
- ENTER TABLE
- ADD TABLE
- CREATE TABLE (correct)
In interactive SQL, what happens when you type a command to ask the database a question?
In interactive SQL, what happens when you type a command to ask the database a question?
Which term is used in SQL to describe the desired column features in retrieved data?
Which term is used in SQL to describe the desired column features in retrieved data?
When constructing empty tables, when is data entered?
When constructing empty tables, when is data entered?
What is the main purpose of a primary key in a database table?
What is the main purpose of a primary key in a database table?
Which SQL operation is used to retrieve data from a database table?
Which SQL operation is used to retrieve data from a database table?
What happens when a primary key column contains null values?
What happens when a primary key column contains null values?
What defines a composite key in a database table?
What defines a composite key in a database table?
Which SQL command is used to add a new row into a table?
Which SQL command is used to add a new row into a table?
What is the range of values for the SMALLINT data type in SQL?
What is the range of values for the SMALLINT data type in SQL?
What operation in SQL allows you to select data from two or more tables?
What operation in SQL allows you to select data from two or more tables?
In a CROSS JOIN operation in SQL, what is the result?
In a CROSS JOIN operation in SQL, what is the result?
What does an INNER JOIN in SQL do?
What does an INNER JOIN in SQL do?
What is the purpose of a RIGHT OUTER JOIN in SQL?
What is the purpose of a RIGHT OUTER JOIN in SQL?
What does a SELF JOIN in SQL involve?
What does a SELF JOIN in SQL involve?
Which SQL operation is used to handle database queries, updates, and maintenance?
Which SQL operation is used to handle database queries, updates, and maintenance?
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