Update 99-ansi-sql.md (#12949)

Author: soyeric128

docs/doc/13-sql-reference/99-ansi-sql.md

@@ -95,7 +95,7 @@ Databend aims to conform to the SQL standard, with particular support for ISO/IE
 | E121-17    	| WITH HOLD cursors                                                                                                        	| <span class="text-red">No</span>         	|                                                                                                              	|
 | **E131**   	| **Null value support (nulls in lieu of values)**                                                                         	| <span class="text-blue">Yes</span>        	|                                                                                                              	|
 | **E141**   	| **Basic integrity constraints**                                                                                          	| <span class="text-red">No</span>         	|                                                                                                              	|
-| E141-01    	| NOT NULL constraints                                                                                                     	| <span class="text-blue">Yes</span>        	| Default in Databend: All columns are non-nullable (NOT NULL).                                                	|
+| E141-01    	| NOT NULL constraints                                                                                                     	| <span class="text-blue">Yes</span>        	| Default in Databend: All columns are nullable.                                                	|
 | E141-02    	| UNIQUE constraint of NOT NULL columns                                                                                    	| <span class="text-red">No</span>         	|                                                                                                              	|
 | E141-03    	| PRIMARY KEY constraints                                                                                                  	| <span class="text-red">No</span>         	|                                                                                                              	|
 | E141-04    	| Basic FOREIGN KEY constraint with the NO ACTION default for both referential delete action and referential update action 	| <span class="text-red">No</span>         	|                                                                                                              	|