strings.toUpper() function

strings.toUpper() converts a string to uppercase.

toUpper vs toTitle

The results of toUpper() and toTitle() are often the same, however the difference is visible when using special characters:

str = "dz"

strings.toUpper(v: str) // Returns DZ
strings.toTitle(v: str) // Returns Dz
Function type signature
(v: string) => string
For more information, see Function type signatures.



(Required) String value to convert.


Convert all values of a column to upper case

import "sampledata"
import "strings"

    |> map(fn: (r) => ({r with _value: strings.toUpper(v: r._value)}))

View example input and output

Was this page helpful?

Thank you for your feedback!

Linux Package Signing Key Rotation

All signed InfluxData Linux packages have been resigned with an updated key. If using Linux, you may need to update your package configuration to continue to download and verify InfluxData software packages.

For more information, see the Linux Package Signing Key Rotation blog post.