@ -7,7 +7,7 @@ keywords : ['NocoDB display value', 'display value', 'display value in nocoDB',
# Display Value
The `Display Value`, as its name suggests, serves as the primary or main value within a record of a table, and it is typically the attribute by which we identify or associate that specific record. While it is advisable for the display value to be linked to a column with unique identifiers, such as a primary key, it's important to note that this uniqueness is not always enforced at the database level.
The `Display Value`, as its name suggests, serves as the primary or main value within a record of a table, and it is typically the attribute by which we identify or associate that specific record. While it is advisable for the display value to be linked to a field with unique identifiers, such as a primary key, it's important to note that this uniqueness is not always enforced at the database level.
## Use of Display Value
- Within a spreadsheet, `Display Value` are always highlighted so that it is easier to recognise what record we are working with.
`Lookup` fields help bring additional column information from related table into the current table. This is useful when you want to display additional information about a record in a table. For example, if you have a table of `Orders` and a table of `Customers`, you can use a `Lookup` field to display the customer's name and address in the `Orders` table.
`Lookup` fields help bring additional field information from related table into the current table. This is useful when you want to display additional information about a record in a table. For example, if you have a table of `Orders` and a table of `Customers`, you can use a `Lookup` field to display the customer's name and address in the `Orders` table.
`QR code` is a custom field type that allows you to generate a QR code from a string value. This is useful for generating QR codes for things like URLs, phone numbers, or other data that can be represented as a string.
The following column types are supported for the reference column:
The following field types are supported for the reference field:
`JSON` is a custom field type that allows you to store JSON data in a column. Useful for storing data that can be represented as a JSON object, like API Response, or a set of key-value pairs.
`JSON` is a custom field type that allows you to store JSON data in a field. Useful for storing data that can be represented as a JSON object, like API Response, or a set of key-value pairs.
## Create a JSON field
1. Click on `+` icon to the right of `Fields header`
- UI verification. This includes verifying the state of the UI element, i.e if the element is visible, if the element has a particular text etc.
- Test should verify all user flow. A test has a default timeout of 60 seconds. If a test is taking more than 60 seconds, it is a sign that the test should be broken down into smaller tests.
- Test should also verify all the side effects the feature(i.e. On adding a new column type, should verify column deletion as well) will have, and also error cases.
- Test should also verify all the side effects the feature(i.e. On adding a new field type, should verify field deletion as well) will have, and also error cases.
- Test name should be descriptive. It should be easy to understand what the test is doing by just reading the test name.
Raju Udava
11 months ago