Database Redesign The NOT EXISTS keyword will be true if: any row in the subquery meets the condition. all rows in the subquery fail the condition. neither of these two conditions is met. both of these two conditions are met. any row in the subquery meets the condition. all rows in the subquery fail the condition. neither of these two conditions is met. both of these two conditions are met. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign What SQL command can be used to add columns to a table? 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 MODIFY TABLE TableName ADD COLUMN ColumnName ALTER TABLE TableName ADD ColumnName ALTER TABLE TableName ADD COLUMN ColumnName ANSWER DOWNLOAD EXAMIANS APP
Database Redesign What SQL command can be used to delete columns from a table? ALTER TABLE TableName DROP COLUMN ColumnName MODIFY TABLE TableName DROP COLUMN ColumnName ALTER TABLE TableName DROP ColumnName MODIFY TABLE TableName DROP ColumnName ALTER TABLE TableName DROP COLUMN ColumnName MODIFY TABLE TableName DROP COLUMN ColumnName ALTER TABLE TableName DROP ColumnName MODIFY TABLE TableName DROP ColumnName ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A tool that can help designers understand the dependencies of database structures is a: None of these data model. dependency graph. graphical display. None of these data model. dependency graph. graphical display. 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. None of these database design. reverse engineering. data modeling. None of these database design. reverse engineering. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Although creating test databases is a critical and necessary job, there are few career opportunities in this area. True False True False ANSWER DOWNLOAD EXAMIANS APP
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