Merge pull request #24187 from thesqlsith/patch-9

Update ltrim-transact-sql.md

Author: prmerger-automator[bot]

docs/t-sql/functions/ltrim-transact-sql.md

@@ -47,6 +47,9 @@ LTRIM ( character_expression )
 ::: moniker range=">=sql-server-ver16 || >=sql-server-linux-ver16"
 Syntax for [!INCLUDE [sssql22-md](../../includes/sssql22-md.md)] and later:
 
+> [!IMPORTANT]
+> You will need your database compatibility level set to 160 to use the optional `characters` argument.
+
 ```syntaxsql
 LTRIM ( character_expression , [ characters ] )
 ```
@@ -129,6 +132,9 @@ Original string	                                        Without spaces
 ::: moniker range=">=sql-server-ver16 || >=sql-server-linux-ver16"
 ### C. Remove specified characters from the beginning of a string
 
+> [!IMPORTANT]
+> You will need your database compatibility level set to 160 to use the optional `characters` argument.
+
 The following example removes the characters `123` from the beginning of the `123abc.` string.
 
 ```sql