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52.   60 Which isolation level prevents dirty reads and non-repeatable reads but still allows phantom reads?

When applying sorting in SQL, which rule is TRUE regarding column aliases used in the SELECT clause?

In the database planning process, the mission statement primarily serves to:

Which of the following best describes the object-based model used for semi-structured data representation?

Which of the following is TRUE about fact tables in a data warehouse?

Which characteristic is required for an attribute to be considered a primary key in the relational model?

Which SQL clause allows applying aggregate functions (e.g., SUM, AVG) on groups of rows?

Which SQL command is specifically used to modify the value of a column in existing records?

Which type of join returns all rows from the right table and matching rows from the left table?

Which notation is MOST commonly used to represent hierarchical data as nested structures in semi-structured models?