LEN and other SQL operators

[Sam23]

Is it possible to use LEN to get the length of a field in a caspio trigger? I am using this in a calculated field to determine when to execute a statement, but now would like to do that from a trigger.

Thanks,

Sam

[Sam23]

A follow-on: what about LEFT, RIGHT and MID for a string in triggers?

[CoopperBackpack]

Hello @Sam23,

First of all, the functions to work with strings can be found under the green ‘Text’ section:

 

 LEN() function

Syntax: LEN(string)

Syntax in Triggered Actions/Tasks: 

Analog of syntax on DataPages/in Formula field: LEN([@field:Email])
Return Type: Integer
Function description: The LEN() function is used to provide the number of characters in a string. Trailing spaces at the end of the string are not included when calculating the length. However, leading spaces at the start of the string are included when calculating the length.

Example of use case: count the number of characters in the submitted email address.

[CoopperBackpack]

LEFT() function

Syntax: LEFT(string, number_of_chars)

number_of_chars passed to the function must be a positive number.

Syntax in Triggered Actions/Tasks: 

Analog of syntax on DataPages/in Formula field: LEFT([@field:Status], 2)

Return Type: String

Function description: The LEFT() function extracts a number of characters from a string (starting from left).

RIGHT() function

Syntax: RIGHT(string, number_of_chars)

number_of_chars passed to the function must be a positive number.

Syntax in Triggered Actions/Tasks: 

Analog of syntax on DataPages/in Formula field: RIGHT([@field:Status], 5)

Return Type: String

Function description: The RIGHT() function extracts a number of characters from a string (starting from right).

Example of use case: Create a Unique_Username that will be used as a Composite Key and which consists of the first character of the user First_Name, the last character of the user Last_Name, and the User_Pin value.

 

As for the MID() function, it looks like it is used in Excel to get a part of the string. In SQL it is the SUBSTRING() function.

SUBSTRING() function

Syntax: SUBSTRING(string, start, length)

start - The start position. The first position in the string is 1. Can be a negative number.

length - The number of characters to extract. Must be a positive number.

Syntax in Triggered Actions/Tasks: 
                                                                        OR 

For ‘substring between’ the start value is included in the extracted substring, but the end value is not included.
For example, when extracting between 1st and 4th characters, the 4th character is not included:

Analog of syntax on DataPages/in Formula field: SUBSTRING([@field:String], 3, 2)

Return Type: String

Function description: The SUBSTRING() function returns part of a string according to the start position and length provided.

Example of use case: Extract the third and fourth characters from the string․

 

Please note that all these functions are available within one block,  just need to select them from the dropdown: