SQL for Database Construction What is an advantage of placing computations in SQL views? To accomplish both of the above. To save users from having to write an expression. None of these To ensure that the results are consistent. To accomplish both of the above. To save users from having to write an expression. None of these To ensure that the results are consistent. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction The DROP TABLE statement: works whether or not referential integrity constraints would be violated. deletes the table structure only. deletes the table structure along with the table data. is not an SQL statement. works whether or not referential integrity constraints would be violated. deletes the table structure only. deletes the table structure along with the table data. is not an SQL statement. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction When a foreign key column is created without a corresponding foreign key constraint, we have created a "casual relationship" between the two tables. False True False True ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction What SQL structure is used to limit column values of a table? The LIMIT constraint None of these The VALUE constraint The CHECK constraint The LIMIT constraint None of these The VALUE constraint The CHECK constraint ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction SQL views can be used to hide: complicated SQL syntax only. None of these columns and rows only. both of the above can be hidden by an SQL view. complicated SQL syntax only. None of these columns and rows only. 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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