SQL for Database Construction A reason for using an SQL view to hide columns is: to accomplish both of the above. to prevent the display of sensitive data only. None of these to simplify a result only. to accomplish both of the above. to prevent the display of sensitive data only. None of these to simplify a result only. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction There are three SQL data modification operations: insert, modify and delete. False True False True ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction What is an advantage of placing computations in SQL views? To accomplish both of the above. To ensure that the results are consistent. None of these To save users from having to write an expression. To accomplish both of the above. To ensure that the results are consistent. None of these To save users from having to write an expression. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction Views can be used to show the results of computed columns. False True False True ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction SQL views can be used to hide: columns and rows only. complicated SQL syntax only. None of these both of the above can be hidden by an SQL view. columns and rows only. complicated SQL syntax only. None of these both of the above can be hidden by an SQL view. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction The SQL CHECK constraint is fully defined by the SQL-92 standard, and is consistently implemented by all DBMS vendors. False True False True ANSWER DOWNLOAD EXAMIANS APP
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