Database Redesign A tool that can help designers understand the dependencies of database structures is a: data model. None of these dependency graph. graphical display. data model. None of these dependency graph. graphical display. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign To drop a column that is used as a foreign key, first: drop the table containing the foreign key. drop the primary key. All of these drop the foreign key constraint. drop the table containing the foreign key. drop the primary key. All of these drop the foreign key constraint. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The EXISTS keyword will be true if: any row in the subquery meets the condition only. all rows in the subquery fail the condition only. neither of these two conditions is met. both of these two conditions are met. any row in the subquery meets the condition only. all rows in the subquery fail the condition only. neither of these two conditions is met. both of these two conditions are met. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The process of reading a database schema and producing a data model from that schema is known as: data modeling. reverse engineering. None of these database design. data modeling. reverse engineering. None of these database design. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Dependency graphs are diagrams that consist of nodes and arcs that show the dependencies of a database. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Adding null columns to a table is straightforward. True False True False ANSWER DOWNLOAD EXAMIANS APP
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