Added information text (#25272)

* Added information text

added informative text in line 34-35

* Removed caps, added code formatting

guide/english/sql/sql-select-statement/index.md

@@ -2,7 +2,7 @@
 title: SQL Select Statement
 ---
 
-## SQL Select Statement
+# SQL Select Statement
 
 ## Select and From clauses
 
@@ -31,6 +31,10 @@ from student;
 +-----------+-------------------+------------+------------------------+
 9 rows in set (0.00 sec)
 ```
+**NOTE**: You can also select all the data from the table using the `*` operator, like so:
+```sql
+SELECT * from <table_name>
+```
 
 ## Select All Data in a table