QUOTENAME()

QUOTENAME returns a Unicode string with the delimiters added to make the input string a valid SQL Engine delimited identifier.

Signature

QUOTENAME ( 'character_string' [ , 'quote_character' ] )

Examples

SELECT QUOTENAME('my table') AS quoted;

quoted
----------------------------------------------------------------
[my table]

SELECT QUOTENAME('abc[]def');

[abc[]]def]

SELECT QUOTENAME('abc def');

[abc def]

Run against SQL Server 16.0.4265.3 on 2026-09-13. This is the output we got, not the documentation’s.

Available on

SQL Server 2017 and later
Azure SQL Database
Azure SQL Managed Instance
Azure Synapse Analytics
Analytics Platform System (PDW)
Microsoft Fabric warehouse
Fabric SQL database

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Signature and description adapted from the Microsoft SQL documentation, used under the CC BY 4.0. SQL Server and Azure are trademarks of the Microsoft group of companies. This page is not affiliated with Microsoft.