Express the following constraint on the document of Figure 15.4: no pair of CourseTaken elements within the same Student element can have identical values of the CrsCode attribute.

What will be an ideal response?


XML Schema does not seem to preclude references to parent nodes from the nodes in a collection speci?ed using the selector tag, so the following is allowed:









Computer Science & Information Technology

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A(n) ____ is a temporary return-value passed to a function.

A. dummy B. placeholder C. stub D. sentinel

Computer Science & Information Technology

Which of the following is a new statistical function in Excel 2013?

A) CORREL B) STDEV.P C) Skew.P D) VARPA

Computer Science & Information Technology

Audit log files, which record details of all accesses and changes to a file or database, can be used to recover changes made since the last backup.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

When an existing file is opened in the write state, any new data are written starting at the end of the file.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology