Database Redesign The process of reading a database schema and producing a data model from that schema is known as: None of these reverse engineering. database design. data modeling. None of these reverse engineering. database design. data modeling. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Reverse engineering is the process of reading a database schema and producing a data model from that schema. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign To drop a column that is used as a foreign key, first: drop the foreign key constraint. drop the primary key. All of these drop the table containing the foreign key. drop the foreign key constraint. drop the primary key. All of these drop the table containing the foreign key. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign What SQL command can be used to add columns to a table? ALTER TABLE TableName ADD COLUMN ColumnName MODIFY TABLE TableName ADD ColumnName ALTER TABLE TableName ADD ColumnName MODIFY TABLE TableName ADD COLUMN ColumnName ALTER TABLE TableName ADD COLUMN ColumnName MODIFY TABLE TableName ADD ColumnName ALTER TABLE TableName ADD ColumnName MODIFY TABLE TableName ADD COLUMN ColumnName 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 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 ADD CONSTRAINT GradeCheck (Grade > 0); ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0); None of these ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0); ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0); ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0); None of these ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0); ANSWER DOWNLOAD EXAMIANS APP
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