Database Redesign How can you find rows that do not match some specified condition? NOT EXISTS EXISTS Double use of NOT EXISTS None of these NOT EXISTS EXISTS Double use of NOT EXISTS None of these ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A tool that can help designers understand the dependencies of database structures is a: None of these dependency graph. graphical display. data model. None of these dependency graph. graphical display. data model. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign What SQL command can be used to add columns to a table? MODIFY TABLE TableName ADD COLUMN ColumnName ALTER TABLE TableName ADD ColumnName ALTER TABLE TableName ADD COLUMN ColumnName MODIFY TABLE TableName ADD ColumnName MODIFY TABLE TableName ADD COLUMN ColumnName ALTER TABLE TableName ADD ColumnName ALTER TABLE TableName ADD COLUMN ColumnName MODIFY TABLE TableName ADD ColumnName ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign. None of these optimistic skeptical ambivalent None of these optimistic skeptical ambivalent ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Because of the need for extensive knowledge of SQL, many database developers choose to automate the redesign process. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0? ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0); None of these ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0); ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0); ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0); None of these ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0); ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0); ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS