SQL for Database Construction Which of the following is NOT a type of SQL constraint? PRIMARY KEY FOREIGN KEY UNIQUE ALTERNATE KEY PRIMARY KEY FOREIGN KEY UNIQUE ALTERNATE KEY ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction For what purposes are views used? All of these To hide complicated SQL statements only To hide rows only To hide columns only All of these To hide complicated SQL statements only To hide rows only To hide columns only ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction If any required (NOT NULL) columns are missing from the view, the view cannot be used for inserting new data. True False True False ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction What is an advantage of placing computations in SQL views? 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. To accomplish both of the above. To save users from having to write an expression. 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 When using the SQL INSERT statement: rows can be inserted into a table only one at a time only. rows can be modified according to criteria only. rows cannot be copied in mass from one table to another only. rows can either be inserted into a table one at a time or in groups. rows can be inserted into a table only one at a time only. rows can be modified according to criteria only. rows cannot be copied in mass from one table to another only. rows can either be inserted into a table one at a time or in groups. ANSWER DOWNLOAD EXAMIANS APP
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