Which symbol in DTD specifies that an element occurs one or more times?
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A well-formed XML document must:
A well-formed XML document must:
What is the main advantage of columnar data storage?
What is the main advantage of columnar data storage?
Which SQL numeric function rounds a number up to the next hi…
Which SQL numeric function rounds a number up to the next highest integer?
Which SQL operator is MOST appropriate for removing rows tha…
Which SQL operator is MOST appropriate for removing rows that satisfy a match against another dataset?
In UML, aggregation is represented by:
In UML, aggregation is represented by:
In ODL, a bidirectional relationship is created by:
In ODL, a bidirectional relationship is created by:
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: