Attribute
- Fiona Sargeant (Unlicensed)
- Zoe Baldwin
- Gary Parden
Overview
Use the attributes properties to specify the characteristics of the data in a column. You can open attribute properties from:
- the repository. Attributes are listed under their table.
- the Table properties → Attributes section
- other attribute lists.
Property Pane Toolbar
For information about the toolbar options, see the Common Properties page, Toolbars and Controls section.
Properties Tab
Parent Details
If this item is within or belongs to another, its parent name is shown here. See the Parent Details section on the Common Properties page for more details.
Basic Settings
| Field | Description | |
|---|---|---|
| Name | Enter the name of the attribute. PhixFlow recognises the attribute name | |
| Type | Select the type of data this attribute contains; see Understanding Data Types.
| |
Length | This field is available when Type is String. By default strings are 50 characters long. Optionally specify a different string length of between 1 and 4000. For strings longer than 4000 characters, set a Type of Bigstring. | |
| Precision | This field is available when Type is Integer. Enter the maximum number of digits allowed in whole numbers. By default, integers are 10 digits long. Optionally specify a different integer precision of between 1 digit and 38 digits. | |
| Significant Figures | This field is available when Type is Decimal. Enter the maximum number of total digits for decimal numbers. By default decimals have 10 significant figures. | Example To specify numbers must have two digits before and after the decimal point, such as 12.34, enter: Significant Figures Decimal Places |
| Decimal Places | This field is available when Type is Decimal. Enter the maximum number of digits allowed after the decimal point. By default, decimals have 2 decimal places. This must be less than the number of significant figures. | |
| Local |
Local attributes should not be used to back fields on forms or cards. | |
| Indexed |
To improve performance, index an attribute when the table has a large data set and an output pipe from the table uses this attribute to:
Note: Attributes with the type, Bigstring, cannot be indexed as this is not supported by the underlying database. | |
| Primary Key |
Note: Attributes with the type, Bigstring, cannot be set as the primary key as this is not supported by the underlying database. | |
| Foreign Key |
Table attributes that are flagged as a Foreign Key are automatically considered to be Indexed. | |
| Display Name |  Tick indicates the name of this attribute is used as the label rather than the primary key attribute name. | |
| Order | The order of the attributes in the table. Attribute expressions are evaluated in this order. This is important when you need to use the results of a calculation in another attribute:
In the attribute list, the attribute that calculates the result must come before the attribute that requires the result. | |
| Expression | The expression used to generate the attribute value. This is written as and expression; see Expressions and PhixScripts. It must evaluate to a single value, of the type specified in the Type field. | |
Advanced
| Field | Description |
|---|---|
| Filter conditions are case-independent by default | Available when Basic Settings → Type is String or Bigstring.
This option affects the behaviour of filters for PhixFlow instances running on Oracle or MySQL databases. For PhixFlow instances running on a SQL Server database, filters are always case-independent. |
| Key |
|
| Translate Values | Available when Basic Settings → Type is String or Bigstring.
|
| Cache Key | Enter an expression to be evaluated for each record in the table . The expression can:
Once calculated, the cache key value persists throughout subsequent calculation, rather than being created from scratch for each record as normal. This allows you to keep track of the calculation as it progresses. This means you can use a "persistent" attribute value in other expressions. |
Description
We recommend that you always enter a description to explain the purpose of this item.
Security Tab
Access Permissions
See the Common Properties page, Access Permissions section.
Audit Tab
Audit Summary
See the Common Properties page, Audit Summary section.
Learn More
Terminology changes in progress
As part of the redesign of PhixFlow, we are changing the following terms:
dashboard → screen
stream → table
stream attributes → attributes
stream item → record
stream set → recordset
stream view → view
stream item action → record-action
stream action → table-action
driver class → database driver