SQL for Database Construction What is an SQL virtual table that is constructed from other tables? Query results A view A relation Just another table Query results A view A relation Just another table ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction What is an advantage of placing computations in SQL views? To ensure that the results are consistent. To accomplish both of the above. None of these To save users from having to write an expression. To ensure that the results are consistent. To accomplish both of the above. None of these To save users from having to write an expression. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction Which is NOT one of the most common types of SQL CHECK constraints? Comparing one column value to another within the same table System date Lists of values Range checks Comparing one column value to another within the same table System date Lists of values Range checks 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 When using the SQL INSERT statement: 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. rows can be inserted into a table only one at a time only. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction SQL views can be used to hide: complicated SQL syntax only. both of the above can be hidden by an SQL view. columns and rows only. None of these complicated SQL syntax only. both of the above can be hidden by an SQL view. columns and rows only. None of these ANSWER DOWNLOAD EXAMIANS APP
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