diff --git a/Sda1/P/rdbms2catalog/Schema/catalog.xsd b/Sda1/P/rdbms2catalog/Schema/catalog.xsd
new file mode 100644
index 0000000000000000000000000000000000000000..9df8b8626a18dc60c23ccb69556e20c18c2da0cc
--- /dev/null
+++ b/Sda1/P/rdbms2catalog/Schema/catalog.xsd
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
+ 
+    <xs:element name="catalog">
+        <xs:complexType>
+            <xs:sequence>
+                <xs:element ref="product" minOccurs="0" maxOccurs="unbounded"/>
+            </xs:sequence>
+        </xs:complexType>
+        <xs:key name="uniqueProductId">
+            <xs:selector xpath="product"/>
+            <xs:field xpath="@id"/>
+        </xs:key>
+    </xs:element>
+    
+    <xs:element name="product">
+        <xs:complexType>
+            <xs:sequence>
+                <xs:element name="name" type="xs:string"/>
+                <xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
+                <xs:element name="age" type="xs:int" minOccurs="0" maxOccurs="1"/>
+            </xs:sequence>
+            <xs:attribute name="id" type="xs:int" use="required"/>
+        </xs:complexType>
+    </xs:element>
+ 
+</xs:schema>
diff --git a/Sda1/P/rdbms2catalog/products.xml b/Sda1/P/rdbms2catalog/products.xml
new file mode 100644
index 0000000000000000000000000000000000000000..15000ab5d08d5160a6b034cc6a2bcfacf66b9b9e
--- /dev/null
+++ b/Sda1/P/rdbms2catalog/products.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<catalog xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="Schema/catalog.xsd">
+   <product id="17">
+       <name>Monkey Picked Tea</name>
+       <description>Rare wild Chinese tea</description>
+       <description>Picked only by specially trained monkeys</description>
+   </product>
+    <product id="42">
+        <name>4-Person Instant Tent</name>
+        <description>4-person, 1-room tent</description>
+        <description>Pre-attached tent poles</description>
+        <description>Exclusive WeatherTec system.</description>
+        <age>15</age>
+    </product>
+</catalog>
\ No newline at end of file