Database Redesign Questions

• What SQL command can be used to add columns to a table?
• The NOT EXISTS keyword will be true if:
• A regular subquery can be processed:
• How can you find rows that do not match some specified condition?
• What SQL command can be used to delete columns from a table?
• Which of the following SQL statements are helpful in database redesign?
• A tool that can help designers understand the dependencies of database structures is a:
• The data model that is produced from reverse engineering is:
• The EXISTS keyword will be true if:
• Which SQL-92 standard SQL command can be used to change a table name?
• To drop a column that is used as a foreign key, first:
• Before any changes to database structure are attempted one should first:
• How many copies of the database schema are typically used in the redesign process?
• Changing cardinalities in a database is:
• Which is not true of a correlated subquery?
• The process of reading a database schema and producing a data model from that schema is known as:
• Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.
• Which of the following modifications may not succeed?
• 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?
• Database redesign is not terribly difficult if the: