n a table, which of the following should be identified as the primary key? 1. field 2.  query 3. record 4. object

Identifying the Primary Key

In database terminology, a primary key is a unique identifier for a record within a table. It ensures that each record can be uniquely identified and prevents duplicate entries. Let’s evaluate the options provided:

1. Field: A field is a single data element within a record. While fields can be part of a primary key, they cannot serve as the primary key on their own unless they are unique.

2. Query: A query is a request for data retrieval from the database. It does not serve as an identifier for records.

3. Record: A record is a complete set of information, which consists of multiple fields. A record itself is identified by one or more fields, but it is not the primary key.

4. Object: In the context of databases, an object usually refers to a table, form, or other entity, and it does not represent a single identifiable item like a primary key.

Analysis

Among the options, the most fitting choice for a primary key must be able to uniquely identify records within a table.

• The field can potentially be a primary key if it contains unique values for every record.
• However, without a specific context indicating which field is unique, it is hard to determine.

Conclusion

If we have to choose from these options, the best candidate for the primary key, given the definitions, would generally be a field that serves as a unique identifier. Hence, the most appropriate answer is:

Final Answer: 1. field is identified as the primary key, as it can uniquely identify each record in a table.