Changing cardinalities in a database is:
Which of the following modifications may not succeed?
How can you find rows that do not match some specified condition?
What SQL command can be used to delete columns from a table?
A tool that can help designers understand the dependencies of database structures is a:
How many copies of the database schema are typically used in the redesign process?
The NOT EXISTS keyword will be true if:
Information systems and organizations do not just influence each other; they create each other.
The use of the double NOT EXISTS can be used to find rows that do not match some specified condition.
The SQL-92 command to change a table name is RENAME TABLE.
A regular subquery can be processed:
A correlated subquery is processed as a nested subquery.
Database redesign is not terribly difficult if the:
Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.
The data model that is produced from reverse engineering is:
To drop a column that is used as a foreign key, first:
Adding null columns to a table is straightforward.
Although creating test databases is a critical and necessary job, there are few career opportunities in this area.
Reverse engineering is the process of reading a database schema and producing a data model from that schema.
What SQL command can be used to add columns to a table?
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