Question
In the diagram below, the triangle represents American,
the circle represents singers and the rectangle represents actors. Select the portion that represents American singers who are also actors.Solution
The correct answer is C
Which of the following joins returns all rows from both tables, filling in NULL values for non-matching rows?
What does the term "referential integrity" mean in a database context?
How many types of architecture we have in DBMS
What does the term "normalization" refer to in the context of database design?
In the context of databases, what does the term sharding refer to?
Pick the odd one out.
Which of the following is true about Information?
Which of the following memories has the shortest access times?Â
Which of the following is used to speed up data retrieval in a relational database?
In a relational database, a foreign key is used to: