First commit

LICENSE.txt

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+Freeware License, some rights reserved
+
+Copyright (c) 2007 Adam Machanic, Lara Rubbelke, and Hugo Kornelis
+
+Permission is hereby granted, free of charge, to anyone obtaining a copy 
+of this software and associated documentation files (the "Software"), 
+to work with the Software within the limits of freeware distribution and fair use. 
+This includes the rights to use, copy, and modify the Software for personal use. 
+Users are also allowed and encouraged to submit corrections and modifications 
+to the Software for the benefit of other users.
+
+It is not allowed to reuse,  modify, or redistribute the Software for 
+commercial use in any way, or for a user�s educational materials such as books 
+or blog articles without prior permission from the copyright holder. 
+
+The above copyright notice and this permission notice need to be included 
+in all copies or substantial portions of the software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS OR APRESS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+

README.md

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+#Apress Source Code
+
+This repository accompanies [*Expert SQL Server 2005 Development*](http://www.apress.com/9781590597293) by Adam Machanic, Lara Rubbelke, and Hugo Kornelis (Apress, 2007).
+
+![Cover image](9781590597293.jpg)
+
+Download the files as a zip using the green button, or clone the repository to your machine using Git.
+
+##Releases
+
+Release v1.0 corresponds to the code in the published book, without corrections or updates.
+
+##Contributions
+
+See the file Contributing.md for more information on how you can contribute to this repository.

README.txt

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+Source Code for Expert SQL Server 2005 Development
+--------------------------------------------------
+
+Check http://www.expertsqlserver2005.com for updates and errata.

Source/Chapter01/Chapter01.sql

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+--Subtype modeling: Not so good
+CREATE TABLE Products
+(
+    UPC INT NOT NULL PRIMARY KEY,
+    Weight DECIMAL NOT NULL,
+    Price DECIMAL NOT NULL
+)
+
+CREATE TABLE Books
+(
+    UPC INT NOT NULL PRIMARY KEY
+        REFERENCES Products (UPC),
+    PageCount INT NOT NULL
+)
+
+CREATE TABLE DVDs
+(
+    UPC INT NOT NULL PRIMARY KEY
+        REFERENCES Products (UPC),
+    LengthInMinutes DECIMAL NOT NULL,
+    Format VARCHAR(4) NOT NULL
+        CHECK (Format IN ('NTSC', 'PAL'))
+)
+GO
+
+
+
+--Better
+CREATE TABLE Products
+(
+    UPC INT NOT NULL PRIMARY KEY,
+    Weight DECIMAL NOT NULL,
+    Price DECIMAL NOT NULL,
+    ProductType CHAR(1) NOT NULL
+        CHECK (ProductType IN ('B', 'D')),
+    UNIQUE (UPC, ProductType)
+)
+
+CREATE TABLE Books
+(
+    UPC INT NOT NULL PRIMARY KEY,
+    ProductType CHAR(1) NOT NULL
+        CHECK (ProductType = 'B'),
+    PageCount INT NOT NULL,
+    FOREIGN KEY (UPC, ProductType) REFERENCES Products (UPC, ProductType)
+)
+
+CREATE TABLE DVDs
+(
+    UPC INT NOT NULL PRIMARY KEY,
+    ProductType CHAR(1) NOT NULL
+        CHECK (ProductType = 'D'),
+    LengthInMinutes DECIMAL NOT NULL,
+    Format VARCHAR(4) NOT NULL
+        CHECK (Format IN ('NTSC', 'PAL')),
+    FOREIGN KEY (UPC, ProductType) REFERENCES Products (UPC, ProductType)
+)
+GO
+
+
+

Source/Chapter02/Chapter02.sql

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+--Implied contract?
+CREATE PROCEDURE GetAggregateTransactionHistory
+    @CustomerId INT
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    SELECT
+        SUM
+        (
+            CASE TransactionType
+                WHEN 'Deposit' THEN Amount
+                ELSE 0
+            END
+        ) AS TotalDeposits,
+        SUM
+        (
+            CASE TransactionType
+                WHEN 'Withdrawal' THEN Amount
+                ELSE 0
+            END
+        ) AS TotalWithdrawals
+    FROM TransactionHistory
+    WHERE
+        CustomerId = @CustomerId
+END
+GO
+
+
+
+--A slightly different implied contract
+CREATE PROCEDURE GetAggregateTransactionHistory
+    @CustomerId INT
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    SELECT
+        SUM
+        (
+            CASE TH.TransactionType
+                WHEN 'Deposit' THEN TH.Amount
+                ELSE 0
+            END
+        ) AS TotalDeposits,
+        SUM
+        (
+            CASE TH.TransactionType
+                WHEN 'Withdrawal' THEN TH.Amount
+                ELSE 0
+            END
+        ) AS TotalWithdrawals
+    FROM Customers AS C
+    LEFT JOIN TransactionHistory AS TH ON C.CustomerId = TH.CustomerId
+    WHERE
+        C.CustomerId = @CustomerId
+END
+GO
+
+
+
+/*
+//C# NUnit test for these stored procedures
+[TestMethod]
+public void TestAggregateTransactionHistory()
+{
+    //Set up a command object
+    SqlCommand comm = new SqlCommand();
+
+    //Set up the connection
+    comm.Connection = new SqlConnection(
+        @"server=serverName; trusted_connection=true;");
+
+    //Define the procedure call
+    comm.CommandText = "GetAggregateTransactionHistory";
+    comm.CommandType = CommandType.StoredProcedure;
+
+    comm.Parameters.AddWithValue("@CustomerId", 123);
+
+    //Create a DataSet for the results
+    DataSet ds = new DataSet();
+
+    //Define a DataAdapter to fill a DataSet
+    SqlDataAdapter adapter = new SqlDataAdapter();
+    adapter.SelectCommand = comm;
+
+    try
+    {
+        //Fill the dataset
+        adapter.Fill(ds);
+    }
+    catch
+    {
+        Assert.Fail("Exception occurred!");
+    }
+
+    //Now we have the results -- validate them...
+
+    //There must be exactly one returned result set
+    Assert.IsTrue(
+        ds.Tables.Count == 1,
+        "Result set count != 1");
+
+    DataTable dt = ds.Tables[0];
+
+    //There must be exactly two columns returned
+    Assert.IsTrue(
+        dt.Columns.Count == 2,
+        "Column count != 2");
+
+    //There must be columns called TotalDeposits and TotalWithdrawals
+    Assert.IsTrue(
+        dt.Columns.IndexOf("TotalDeposits") > -1,
+        "Column TotalDeposits does not exist");
+
+    Assert.IsTrue(
+        dt.Columns.IndexOf("TotalWithdrawals") > -1,
+        "Column TotalWithdrawals does not exist");
+
+    //Both columns must be decimal
+    Assert.IsTrue(
+        dt.Columns["TotalDeposits"].DataType == typeof(decimal),
+        "TotalDeposits data type is incorrect");
+
+    Assert.IsTrue(
+        dt.Columns["TotalWithdrawals"].DataType == typeof(decimal),
+        "TotalWithdrawals data type is incorrect");
+
+    //There must be zero or one rows returned
+    Assert.IsTrue(
+        dt.Rows.Count <= 1,
+        "Too many rows returned");
+}
+*/
+
+