Determining Table Fields

Which should not be included as fields in a table? Choose all that apply.
A - Small fields
B - Region fields
C - Yes/No fields
D - Calculated data
E - Numbered fields
F - Separate name fields

In Microsoft Access what does Apply 2 Step 1 Query includes Customer Number, Customer Name, Amount Paid and Balance fields from the Customer table

The fields that should not be included in a table are:

A - Small fields: Small fields typically refer to fields that contain a limited amount of data, such as single words or short phrases. Including these as separate fields in a table may not be necessary and can result in a cluttered and inefficient database design.

B - Region fields: Region fields refer to geographical regions or locations. It is usually more appropriate to store such information in a separate table linked to the main table using a foreign key, instead of including them as individual fields in the main table.

D - Calculated data: Calculated data, such as values derived from other fields or formulas, should generally not be included as fields in a table. Instead, they can be computed at runtime using queries or stored procedures.

E - Numbered fields: Numbered fields generally refer to fields that are labeled or identified using numerical values, such as serial numbers or ID numbers. It is often better to generate these values dynamically using sequences or auto-increment functions, rather than including them as separate fields in the table.

F - Separate name fields: Separate name fields refer to fields that store individual components of a person's name, such as first name, middle name, and last name. It is generally more appropriate to store the full name as a single field and use functions or queries to extract specific components, if necessary.

To determine which fields should not be included in a table, we need to consider the purpose and design of the table. Here are explanations for each of the options given:

A - Small fields: The decision of whether or not to include small fields in a table depends on the specific requirements of your data. Small fields are typically used to store short strings of text or numerical values that do not require a lot of storage space. If your table needs to store these small values, it may be appropriate to include small fields. Therefore, option A cannot be definitively considered as one that should not be included.

B - Region fields: Region fields are used to store information about specific regions, such as countries, states, or postal codes. Including region fields in a table can be useful if your data requires regional analysis or filtering. However, if your table does not have any relevance to regions or if the region information is already stored elsewhere, then it may not be necessary to include region fields. The appropriateness of including region fields depends on the specific requirements of your data, so option B cannot be definitively considered as one that should not be included.

C - Yes/No fields: Yes/No fields, also known as boolean fields or flags, are typically used to represent true/false or yes/no values. Including these fields in a table can be beneficial if your data requires this type of binary representation. However, if your table has no need for yes/no information or if the information can be inferred from other fields, then it may not be necessary to include yes/no fields. The decision of whether or not to include yes/no fields depends on the specific requirements of your data, so option C cannot be definitively considered as one that should not be included.

D - Calculated data: Calculated data refers to fields that are derived from other fields using formulas or calculations. These fields can be useful for performing calculations and aggregations, but they are not typically stored directly in the table. Instead, they can be calculated on the fly when needed. Therefore, calculated data should not be included as fields in a table, as they can be derived when required.

E - Numbered fields: Numbered fields refer to fields that are used for sequential numbering or unique identification purposes. These fields are often generated automatically by the database system and do not contain meaningful data. Including numbered fields in a table can be useful for identification or internal tracking purposes. Therefore, numbered fields can be included in a table if there is a need for them.

F - Separate name fields: Separate name fields typically refer to fields that store individual parts of a person's name, such as first name, middle name, and last name, as separate fields. Including separate name fields in a table can be beneficial if your data requires the ability to sort, search, or display names in a specific format. However, if your table does not have any specific requirements related to names or if the names can be stored as a single field, then it may not be necessary to include separate name fields. The appropriateness of including separate name fields depends on the specific requirements of your data, so option F cannot be definitively considered as one that should not be included.

In conclusion, the fields that should not be included as fields in a table are:
- Calculated data (option D)