On April 28, 2021, Google is changing the required permissions for attaching IAM roles to service accounts. If you are using IAM roles for your Google service accounts, please see Changes to User Management.
Returns
true
if the argument evaluates to false
, and vice-versa. Equivalent to the !
operator.- The argument can be a literal Boolean, a function returning a Boolean, or a reference to a column containing Boolean values.
Since the function returns a Boolean value, it can be used as a function or a conditional.
NOTE: Within an expression, you might choose to use the corresponding operator, instead of this function. For more information, see Logical Operators.
Wrangle vs. SQL: This function is part of Wrangle , a proprietary data transformation language. Wrangle is not SQL. For more information, see Wrangle Language.
Basic Usage
not(customerHappiness > 70)
Output: If the value in the customerHappiness
column is not greater than 70
, then the value is true
. Otherwise, the value is false
.
Syntax and Arguments
not(value1)
Argument | Required? | Data Type | Description |
---|---|---|---|
value1 | Y | string | The value must be a Boolean literal, column reference, or expression that evaluates to true or false . |
For more information on syntax standards, see Language Documentation Syntax Notes.
value1
Expression, column reference or literal that evaluates to a Boolean value.
- Missing or mismatched values generate missing results.
Usage Notes:
Required? | Data Type | Example Value |
---|---|---|
Yes | Function or column reference returning a Boolean value or Boolean literal | myHeight > 2.00 |
Tip: For additional examples, see Common Tasks.
Examples
Example - Logical Functions
AND
, OR
, and NOT
logical functions. - See AND Function.
- See OR Function.
- See NOT Function.
In this example, the dataset contains results from survey data on two questions about customers. The yes/no answers to each question determine if the customer is 1) still active, and 2) interested in a new offering.
Source:
Customer | isActive | isInterested |
---|---|---|
CustA | Y | Y |
CustB | Y | N |
CustC | N | Y |
CustD | N | N |
Transformation:
Customers that are both active and interested should receive a phone call:
Transformation Name | New formula |
---|---|
Parameter: Formula type | Single row formula |
Parameter: Formula | AND(isActive, isInterested) |
Parameter: New column name | 'phoneCall' |
Customers that are either active or interested should receive an email:
Transformation Name | New formula |
---|---|
Parameter: Formula type | Single row formula |
Parameter: Formula | OR(isActive, isInterested) |
Parameter: New column name | 'sendEmail' |
Customers that are neither active or interested should be dropped from consideration for the offering:
Transformation Name | New formula |
---|---|
Parameter: Formula type | Single row formula |
Parameter: Formula | AND(NOT(isActive),NOT(isInterested) |
Parameter: New column name | 'dropCust' |
A savvy marketer might decide that if a customer receives a phone call, that customer should not be bothered with an email, as well:
Transformation Name | Edit column with formula |
---|---|
Parameter: Columns | sendEmail |
Parameter: Formula | IF(phoneCall == "TRUE", FALSE, sendEmail) |
Results:
Customer | isActive | isInterested | dropCust | sendEmail | phoneCall |
---|---|---|---|---|---|
CustA | Y | Y | FALSE | FALSE | TRUE |
CustB | Y | N | FALSE | TRUE | FALSE |
CustC | N | Y | FALSE | TRUE | FALSE |
CustD | N | N | TRUE | FALSE | FALSE |
This page has no comments.