---
title: "New-Constants"
slug: "new-constants"
updated: 2023-07-21T10:55:14Z
published: 2023-07-21T10:55:14Z
canonical: "docs.avontus.com/new-constants"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.avontus.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Constants

The table below contains all of the current constants you will find in the Expression Editor.

| Constant | Description | Example |
| --- | --- | --- |
| String constants | String constants must be wrapped in apostrophes. | [Country] == 'France' |
| String constants (with apostrophe) | If a string contains an apostrophe, the apostrophe must be doubled. | [Name] == 'O''Neil' |
| Date-time constants | Date-time constants must be wrapped in '#'. | [OrderDate] >= #1/1/2009# |
| True | Represents the Boolean True value. | [InStock] == True |
| False | Represents the Boolean False value. | [InStock] == False |
| ? | Represents a null reference or DBNull.Value. | [Region] != ? |