Update INSERT command examples in both CN and EN versions

- Add new table 'new_products' to demonstrate more complex INSERT examples
- Include INSERT commands for the new table with sample data
- Update the example of inserting query results to use a specific date

Author: NotHimmel

CN/modules/ROOT/pages/v4.4/8.adoc

@@ -149,6 +149,13 @@ CREATE TABLE products (
     name text,
     price numeric
 );
+
+CREATE TABLE new_products (
+    product_no int ,
+    name varchar(255),
+    price DECIMAL(10, 2),
+    release_date DATE 
+);
 ```
 
 一个插入一行的命令将是：
@@ -191,14 +198,19 @@ INSERT INTO products (product_no, name, price) VALUES
     (1, 'Cheese', 9.99),
     (2, 'Bread', 1.99),
     (3, 'Milk', 2.99);
+
+INSERT INTO new_products (product_no, name, price, release_date) VALUES
+    (1, 'A', 100.00, '2025-05-29'),
+    (2, 'B', 150.50, '2024-11-20'),
+    (3, 'C', 200.75, '2025-05-29');
 ```
 
 也可以插入查询的结果（可能没有行、一行或多行）：
 
 ```
 INSERT INTO products (product_no, name, price)
   SELECT product_no, name, price FROM new_products
-    WHERE release_date = 'today';
+    WHERE release_date = '2025-05-29';
 ```
 
 这提供了用于计算要插入的行的SQL查询机制（ http://www.postgresql.org/docs/17/queries.html[第 7 章]）的全部功能。

EN/modules/ROOT/pages/v4.4/8.adoc

@@ -155,6 +155,13 @@ CREATE TABLE products (
     name text,
     price numeric
 );
+
+CREATE TABLE new_products (
+    product_no int ,
+    name varchar(255),
+    price DECIMAL(10, 2),
+    release_date DATE 
+);
 ```
 
 An example command to insert a row would be:
@@ -197,14 +204,19 @@ INSERT INTO products (product_no, name, price) VALUES
     (1, 'Cheese', 9.99),
     (2, 'Bread', 1.99),
     (3, 'Milk', 2.99);
+    
+INSERT INTO new_products (product_no, name, price, release_date) VALUES
+    (1, 'A', 100.00, '2025-05-29'),
+    (2, 'B', 150.50, '2024-11-20'),
+    (3, 'C', 200.75, '2025-05-29');
 ```
 
 It is also possible to insert the result of a query (which might be no rows, one row, or many rows):
 
 ```
 INSERT INTO products (product_no, name, price)
   SELECT product_no, name, price FROM new_products
-    WHERE release_date = 'today';
+    WHERE release_date = '2025-05-29';
 ```
 
 This provides the full power of the SQL query mechanism for computing the rows to be inserted.