When you are given a set of tables and asked to create a database to store their data, the first step is to create the new database.
Multivalued dependencies create harmless anomalies that should be noted, but do not always need to be eliminated.
We use the SQL construct COLUMNS(*) to determine the number and type of columns in a table.
When assessing the table structure of an acquired set of tables with data, determining primary keys is (part of) the:
For a number of reasons, normalizations is not often an advantage for a(n) ________ database.
Each answer below shows example data from a table. Which answer is an example of the multivalue, multicolumn problem?
One common design problem when designing a database from existing data is the presence of inconsistent values in the received data.
When building a database from an existing set of tables, we may safely assume that there are no multivalued dependencies in the data we are given.
When assessing the table structure of an acquired set of tables with data, accessing the validity of possible referential integrity constraints on foreign keys is (part of) the:
Normalization ________ data duplication.
Most of the time, modification anomalies are serious enough that tables should be normalized into:
When assessing the table structure of an acquired set of tables with data, counting the number of table rows is (part of) the:
If a table has been normalized so that all determinants are candidate keys, then that table is in:
Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems?
Each answer below shows example data from a table. Which answer is an example of the inconsistent values problem?
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