LOWER - Query language in Cosmos DB (in Azure and Fabric)

The LOWER function returns a string expression after converting uppercase character data to lowercase.

An Azure Cosmos DB for NoSQL system function that returns a string expression with uppercase characters converted to lowercase.

Syntax

LOWER(<string_expr>)

Arguments

	Description
string_expr	A string expression.

Return types

Returns a string expression.

Examples

This section contains examples of how to use this query language construct.

Convert string to lowercase

In this example, the LOWER function is used to modify various strings.

SELECT VALUE {
  lowercase: LOWER("adventureworks"),
  uppercase: LOWER("ADVENTUREWORKS"),
  camelCase: LOWER("adventureWorks"),
  pascalCase: LOWER("AdventureWorks"),
  upperSnakeCase: LOWER("ADVENTURE_WORKS")
}

[
  {
    "lowercase": "adventureworks",
    "uppercase": "adventureworks",
    "camelCase": "adventureworks",
    "pascalCase": "adventureworks",
    "upperSnakeCase": "adventure_works"
  }
]

Remarks

• This function doesn't utilize the index.