Update Listing 1.7 and 1.8

IBM DB2/Chapter 01/Listing 1.008.sql

@@ -0,0 +1,15 @@
+-- This table already exists in the Sales Orders sample database.
+-- You can create the Sales Orders sample database by executing 
+--   SalesOrdersStructure.sql and SalesOrdersData.sql in the Sample Databases folder.
+-- If you attempt to run this listing, you will get an error.
+
+SET SCHEMA SalesOrdersSample;
+
+CREATE TABLE Order_Details (
+  OrderNumber int NOT NULL ,
+  ProductNumber int NOT NULL ,
+  QuotedPrice decimal(15,2) NULL DEFAULT 0 ,
+  QuantityOrdered smallint NULL DEFAULT 0 ,
+  ExtendedPrice decimal(15,2) 
+    GENERATED ALWAYS AS (QuotedPrice * QuantityOrdered)
+);

IBM DB2/Chapter 01/README

@@ -2,5 +2,4 @@ This folder contains samples and scripts for chapter 1.
 
 The following listings are NOT included:
 
-1-006 -- NOT included - specific to SQL Server
-1-008 -- NOT included - specific to Oracle
+1-006 -- NOT included - specific to SQL Server

Microsoft Access/Chapter 01/README

@@ -14,8 +14,8 @@ This folder contains samples and scripts for chapter 1.
             Listing 1-004a  (Drop table)
 1-005 -- Contained as query Listing 1-005 in the SalesOrdersSample.accdb file (in the Sample Databases folder)
 1-006 -- NOT included - specific to SQL Server
-1-007 -- NOT included - specific to DB2
-1-008 -- NOT included - specific to Oracle
+1-007 -- NOT included - indexing on calculated column is not supported
+1-008 -- NOT included - indexing on calculated column is not supported
 1-009 -- Contained as query Listing 1-009 in the SalesOrdersSample.accdb file (in the Sample Databases folder)
 1-010 -- Contained as queries in the SalesOrdersSample.accdb file (in the Sample Databases folder)
             Listing 1-010a  (Create Orders table)

Microsoft SQL Server/Chapter 01/Listing 1.008.sql

@@ -0,0 +1,17 @@
+-- This table already exists in the Sales Orders sample database.
+-- You can create the Sales Orders sample database by executing 
+--   SalesOrdersStructure.sql and SalesOrdersData.sql in the Sample Databases folder.
+-- If you attempt to run this listing, you will get an error.
+
+USE SalesOrdersSample;
+
+GO
+
+CREATE TABLE Order_Details (
+  OrderNumber int NOT NULL ,
+  ProductNumber int NOT NULL ,
+  QuotedPrice decimal(15,2) DEFAULT 0 NULL ,
+  QuantityOrdered smallint DEFAULT 0 NULL ,
+  ExtendedPrice  
+    AS (QuotedPrice * QuantityOrdered)
+);

Microsoft SQL Server/Chapter 01/README

@@ -1,6 +1,2 @@
 This folder contains samples and scripts for chapter 1.
 
-The following listings are NOT included:
-
-1-007 -- NOT included - specific to DB2 & MySQL
-1-008 -- NOT included - specific to Oracle

MySQL/Chapter 01/Listing 1.008.sql

@@ -0,0 +1,15 @@
+-- This table already exists in the Sales Orders sample database.
+-- You can create the Sales Orders sample database by executing 
+--   SalesOrdersStructure.sql and SalesOrdersData.sql in the Sample Databases folder.
+-- If you attempt to run this listing, you will get an error.
+
+USE SalesOrdersSample;
+
+CREATE TABLE Order_Details (
+  OrderNumber int NOT NULL ,
+  ProductNumber int NOT NULL ,
+  QuotedPrice decimal(15,2) DEFAULT 0 NULL ,
+  QuantityOrdered smallint DEFAULT 0 NULL ,
+  ExtendedPrice decimal(15,2)  
+    GENERATED ALWAYS AS (QuotedPrice * QuantityOrdered)
+);

MySQL/Chapter 01/README

@@ -2,5 +2,4 @@ This folder contains samples and scripts for chapter 1.
 
 The following listings are NOT included:
 
-1-006 -- NOT included - specific to SQL Server
-1-008 -- NOT included - specific to Oracle
+1-006 -- NOT included - specific to SQL Server

Oracle/Chapter 01/Listing 1.007.sql

@@ -0,0 +1,17 @@
+-- Ensure you've run SalesOrdersStructure.sql
+-- and SalesOrdersData.sql in the Sample Databases folder
+-- in order to run this example. 
+
+ALTER SESSION SET CURRENT_SCHEMA = SalesOrdersSample;
+
+-- Create the calculated column using an expression
+ALTER TABLE Order_Details
+  ADD ExtendedPrice decimal (15, 2)
+  GENERATED ALWAYS AS (QuantityOrdered * QuotedPrice);
+
+-- Index the calculated column
+CREATE INDEX Order_Details_ExtendedPrice
+ON Order_Details (ExtendedPrice);
+
+-- Now clean it up
+ALTER TABLE Order_Details DROP COLUMN ExtendedPrice;

Oracle/Chapter 01/README

@@ -2,5 +2,4 @@ The folder contains samples and scripts for chapter 1.
 
 The following listings are NOT included:
 
-1.006 -- Specific to SQL Server
-1.007 -- Specific to DB2 & MySQL
+1.006 -- Specific to SQL Server

PostgreSQL/Chapter 01/README

@@ -3,5 +3,5 @@ The folder contains samples and scripts for chapter 1.
 The following listings are NOT included:
 
 1.006 -- Specific to SQL Server
-1.007 -- Specific to DB2 & MySQL
-1.008 -- Specific to Oracle
+1.007 -- Calculated column not supported
+1.008 -- Calculated column not supported