In ODL, a bidirectional relationship is created by:
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The extent of a class represents:
The extent of a class represents:
52. 58 Which transaction state occurs immediately after…
52. 58 Which transaction state occurs immediately after all operations finish but before the changes are written to the database?
In SQL3, a reference type is used for:
In SQL3, a reference type is used for:
52. 60 Which isolation level prevents dirty reads and n…
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 c…
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 prim…
In the database planning process, the mission statement primarily serves to:
Which of the following best describes the object-based model…
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 w…
Which of the following is TRUE about fact tables in a data warehouse?
Which characteristic is required for an attribute to be cons…
Which characteristic is required for an attribute to be considered a primary key in the relational model?