Database Redesign The use of the double NOT EXISTS can be used to find rows that do not match some specified condition. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign It is not easy to build a database correctly the first time. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A regular subquery can be processed: from the bottom up. from the top down. None of these by nesting. from the bottom up. from the top down. None of these by nesting. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if: both of these two conditions are met. neither of these two conditions is met. any row in the subquery meets the condition. all rows in the subquery fail the condition. both of these two conditions are met. neither of these two conditions is met. any row in the subquery meets the condition. all rows in the subquery fail the condition. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A tool that can help designers understand the dependencies of database structures is a: data model. None of these graphical display. dependency graph. data model. None of these graphical display. dependency graph. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which of the following modifications may not succeed? Neither of the above actions will succeed Changing a column data type from numeric to char Changing a column data type from char to date Both of the above actions should succeed Neither of the above actions will succeed Changing a column data type from numeric to char Changing a column data type from char to date Both of the above actions should succeed ANSWER DOWNLOAD EXAMIANS APP
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