PostgreSQL QUOTE_IDENT() function

QUOTE_IDENT() function

The PostgreSQL quote_ident function is used to make a given string with suitably double quoted, so as it can be used like an identifier in an SQL statement string if required.

This ensures that special characters or reserved words in the identifier are properly handled.

Uses of QUOTE_IDENT() Function

• Safeguard Identifiers: Automatically quote identifiers containing special characters or reserved keywords to prevent syntax errors.


• Generate Dynamic SQL: Create dynamic SQL queries with identifiers that need to be quoted for proper execution.


• Improve SQL Security: Avoid SQL injection vulnerabilities by safely quoting identifiers when constructing SQL statements.


• Handle Case Sensitivity: Ensure identifiers are correctly quoted to maintain case sensitivity in SQL queries.

Syntax:

pg_client_encoding (string)

PostgreSQL Version 9.3

Pictorial Presentation of PostgreSQL QUOTE_IDENT() function

Example: PostgreSQL QUOTE_IDENT() function:

In the example below, the quote_ident function makes the given string with suitably double quoted.

SELECT quote_ident('SELECT * FROM employee');

Sample Output:

       quote_ident
--------------------------
 "SELECT * FROM employee"
(1 row)

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