One handy trick that I used to do was use the function OBJECT_DEFINITION() to view the code of a sproc. It’s a handy little function that doesn’t get much love as OBJECT_ID or OBJECT_NAME(). Let’s say we want to get the code of the sproc dbo.uspGetBillOfMaterials from DB AdventureWorks. We do like so:

SELECT OBJECT_DEFINITION( OBJECT_ID('dbo.uspGetBillOfMaterials') )

You get a result that may not be too pretty. In this case, use PRINT rather than SELECT, since SSMS strips out line breaks to squeeze it in the cell.

Now let’s search all available user sprocs in the database to search for the string “%GetBillOf% :

SELECT  OBJECT_DEFINITION( p.[OBJECT_ID] ) AS code 
FROM    sys.procedures p
WHERE   OBJECT_DEFINITION( p.[OBJECT_ID] ) LIKE '%GetBillOf%'

Now, I do longer search this way since every day I have a job that writes out all DB objects (tables, sprocs, etc.) to a individual files and they get indexed via Copernic Desktop Search. I script them out using SQL Compare.

Unfortunately, I don’t know why, OBJECT_DEFINITION() doesn’t work on tables. It’s been a wanted feature by the community. If you want to learn more about this function, check out:

• How to script all stored procedures in a database
• Script Table definitions using TSQL

Why do this?

In case you don’t have shell access to your server from your hosting provider. Also if the provider doesn’t let you writing files locally from a script.

If you want to backup from a remote machine to your local machine:

(Don’t use the < or > symbols when you type it, except the last > that redirects to a file.)

mysqldump --opt -Q -h <www.narutorp.net> -u <username> --password=<chocolatepizza> <database_name> > <C:\temp\mysql\backupdb1.sql>

If you want to backup from a remote machine to that same remote machine.

mysqldump --opt -Q -h <127.0.0.1> -u <username> -p <password> > <filename.sql>

You can also pipe that to gzip to compress, and schedule it as needed.

They can be handy sometimes if you want to modularize your code for the life-time of a routine. To create a temp stored procedure, all you do is use the # sign before the name of the sproc. Same concept as a temp table. Only the owner can execute it and its life is that of the session. Here’s an example that uses the Northwind db.

CREATE PROCEDURE #GetCustomers 
(
  @companyName VARCHAR(50)
)
AS
BEGIN
  SELECT * FROM Customers
  WHERE  CompanyName LIKE '%' + @companyName + '%'
END

To use it:

EXEC #GetCustomers 'The'

You can find the temp sproc in the tempdb:

If you want more information on the temp sproc, you can query the system view under the tempdb:

SELECT * FROM tempdb.sys.objects
WHERE [OBJECT_ID] = OBJECT_ID('tempdb.dbo.#GetCustomers')

Your next question maybe if you can create temp user defined functions? The answer is a big juicy delicious, “NO!” (at least as of SQL Server 2008 Enterprise).

Recently I’ve had to install SQL Server 2008 on a few machines. Some of these errors made absolutely no sense, but I found solutions that worked for me. Maybe they’ll help you.

Windows 2000 Server (32-bit)

“The procedure entry point GetConsoleProcessList could not be located in the dynamic link library KERNEL32.dll.”

That sounds pretty self-explanatory, right? Actually, this was the easiest error to make sense of. This is the error you get because SQL Server 2008 is not compatible with Windows 2000 Server. It comes from the fact that SQL Server 2008 needs .NET 3.5+, and that version of .NET is not Windows 2000-compatible.

Windows XP and Windows 2003 Server (32-bit)

Surprisingly, I received no errors while trying to install it on Windows XP. Everything went fine with Windows 2003 Server.

Windows 7 (64-bit)

OK, this was hell on earth. First I ran the setup, and mid-way through the installation, I received this gem:

“SQL Server Setup has encountered the following error:

Invoke or BeginInvoke cannot be called on a control until the window handle has been created..”

I noticed that this arises if you have the focus on another Window while the installer is running. I was browsing the web via Firefox and I received this. To make sure you don’t get this, don’t have any other Window running and only have the focus on the installer.

That wasn’t the only error I received. When I initially ran the setup, I saw a console window flash and then nothing would happen. (I waited for a few minutes and nothing. Setup.exe wasn’t even in the task manager.) When you run setup.exe, it fires landingpage.exe, which is the actual wizard installer. Unfortunately, it wasn’t running it. I even made sure I had the requirements, and nothing. I rebooted several times, and finally decided to run landingpage.exe directly. When I ran it, it finally saw the wizard. I was joyful, until it got to this part:

What the heck?! Where are the features?

Why would the wizard make it this far and then then not have the features to let me install? This was useless. If you’re curious, it should’ve looked like this:

Then for the heck of it, I decided to Install SQL Server 2008 SP1, without even installing SQL Server 2008 first. Don’t know why, but it let me install it anyways. Then when I ran the SQL Server 2008 installer again, but this time, I would see these features:

Ugh, still no luck. Finally, the only thing that I could conclude was that I may have a bad installation. So I restored my machine to an earlier restore point (to undo this installation mess) and re-downloaded the installation files.

Voila! No more problems. So that’s what it was. I was finally able to see all the features to install. So maybe the files got corrupted upon download or it was an incomplete download.

In the same way there’s a tight bond between MySQL and PHP, SQL Server and ASP.NET, SQL Server and ColdFusion – what goes well with Java? Oracle? Being curious, I started searching in employment web sites. I searched for “Java” and one of these databases: Oracle, MySQL, SQL Server and PostgreSQL. (I put in “SQL Server” using quotes.) The sites used were: craigslist, Monster.com, Dice.com, and Yahoo! Hotjobs.

The numbers signify how many job entries were returned.

So it does seem Oracle goes with Java. Also I noticed how many people call “SQL Server” just “SQL.” Sort of confusing and hard to tell if they’re referring to the platform or language.

If you haven’t heard of SQLCompare by RedGate, you’re missing out. It’s an amazing product. In summary, you can do the following (which I use it for 99% of the time):

• Compare Schema / TSQL code from Different Databases
• Sync Schema / TSQL code across two databases
• Generate TSQL code from your comparison so you can use it for deployments
• Generate reports on SQL Changes

Most of those things can be done via the GUI version of the tool. The product also comes with a command line version, which you can use it in your build script.

To script out your entire database via the command console, you can do the following:

SQLCompare /force /database1:YOURDATABASENAME /username1:sa /password1:password /server1:YOURDATABASESERVERNAME /makescripts:c:\x

To compare two databases and generate a report via the command console, you can do the following. The reason there’s so many switches is because you need to enter the database name and credentials for the two databases.

SQLCompare /force /database1:DB1NAME /username1:sa /password1:password /server1:SERVER1NAME /database2:DB2NAME /username2:sa /password2:password /server2:SERVER2NAME /report:c:\report.html /reporttype:Interactive

Logical diagrams are to convey requirements only. Physical diagrams represent the actual data structure to support the requirements and take into account technical scalability and speed.

Edit: I hate the way I had to format this document for this blog post. If you want this tutorial better formatted, check out the Word document.

One-to-Many Relationship

Logical

On ER/Studio, two tables are created. The Store table has a primary key StoreID. The Manager table has a primary key, ManagerID and a foreign key, StoredID (which is mapped to StoreID from the Store table).

Physical

On SQL Server, two tables are created. The Store table has a primary key StoreID. The Manager table has a primary key, ManagerID and a foreign key, StoredID (which is mapped to StoreID from the Store table).

Manager Table:

If you allow NULLs for StoreID in the Manager table, then you’ll be able to have a Manager without a store. If you don’t allow NULLs (leave it unchecked), then you’ll have to have at least one Store assigned to a Manager.

Querying

The above states that one store can have many managers. Here’s some sample data what’s in the tables:

SELECT * FROM Manager

SELECT * FROM Store

Get all manager information with for all managers that belong to a store:

SELECT Manager.ManagerID, Manager.FirstName, Manager.LastName, Manager.StoreID, Store.[Name], Store.Address, Store.STATE, Store.City, Store.Zip FROM Manager INNER JOIN Store ON Manager.StoreID = Store.StoreID

Get all manager information with for all managers (even if they don’t have a store):

SELECT Manager.ManagerID, Manager.FirstName, Manager.LastName, Manager.StoreID, Store.[Name], Store.Address, Store.STATE, Store.City, Store.Zip FROM Manager LEFT OUTER JOIN Store ON Manager.StoreID = Store.StoreID

Notice the NULL for Steamboat Willie. He doesn’t have a store, so all Store related fields show as NULL.

Many-to-Many Relationship

In order to implement this physically, you need a join table. In this case, we use StoreManager. Logically, you only need only two entities (Store and Manager).

Logical

Physical

On SQL Server, three tables are created. The Store table has a primary key StoreID. The Manager table has a primary key, ManagerID. The table StoreManager has two foreign keys:  StoredID (which is mapped to StoreID from the Store table) and ManagerID (which is mapped to the ManagerID from the Manager table).

StoreManager Table:

If you allow NULLs for StoreID and ManagerID in the StoreManager table, then you’ll be able to have a Manager without a store. If you don’t allow NULLs (leave it unchecked for both), then you’ll have to have at least one Store assigned to a Manager.

Here’s some sample data what’s in the tables:

SELECT * FROM Manager

SELECT * FROM Store

SELECT * FROM StoreManager

Get all manager information associated with his store:

SELECT  Manager.ManagerID,  Manager.FirstName,  Manager.LastName,
        StoreManager.StoreID, StoreManager.ManagerID, Store.StoreID,
        Store.[Name],Store.Address, Store.STATE, Store.City, Store.Zip
FROM    Store
        INNER JOIN StoreManager ON Store.StoreID = StoreManager.StoreID
        INNER JOIN Manager ON StoreManager.ManagerID = Manager.ManagerID

So let’s say you have a table with a column of type DateTime. Now you have to support timezones. The first thing you create is a table of time offsets (Google Time Offsets). The table would look like this:

Here’s schema for it. You can download the full script with the data as well.

CREATE TABLE [dbo].[TimeZones](
	[TimeZoneID] [INT] IDENTITY(1,1) NOT NULL,
	[Offset] [VARCHAR](15) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
	[TimeLabel] [VARCHAR](100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
 CONSTRAINT [PK_TimeZones] PRIMARY KEY CLUSTERED 
(
	[TimeZoneID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO

Now for the purpose of this tutorial, let’s create an event table. This will have a set of dates/times which we’ll use to add the timeoffsets to. The table looks like this:

and here’s the script:

CREATE TABLE [dbo].[TimeEvent](
	[TimeEventID] [INT] IDENTITY(1,1) NOT NULL,
	[EventName] [VARCHAR](100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
	[EventDateTime] [DATETIME] NULL,
	[TimeZoneID] [INT] NULL,
 CONSTRAINT [PK_TimeEvent] PRIMARY KEY CLUSTERED 
(
	[TimeEventID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]

Now let’s INNER JOIN the tables properly adding the timeoffset to the event datetime:

SELECT  tz.TimeZoneID,
        tz.Offset,        
        te.TimeEventID,
        te.EventName,
        te.EventDateTime AS 'OriginalEventDateTime',
 
        -- Hour - Extract Hour from Offset
        SUBSTRING(Offset, 0, CHARINDEX(':', Offset, 0)) AS 'Hour',
 
        -- Minute - Extract Minute from Offset        
        SUBSTRING(Offset, CHARINDEX(':', Offset, 0) + 1, LEN(Offset)) AS 'Minute',
 
        -- New Date with UTC Addition
        DATEADD(HOUR,
                CAST(SUBSTRING(Offset, 0, CHARINDEX(':', Offset, 0)) AS INT),
                DATEADD(MINUTE,
                        CAST(SUBSTRING(Offset, CHARINDEX(':', Offset, 0) + 1,
                                       LEN(Offset)) AS INT), EventDateTime -- DateTime change via Offset
                         )) AS 'EventDateTimeWithTimeZone'
FROM    TimeZones tz
        INNER JOIN TimeEvent te ON tz.TimeZoneID = te.TimeZoneID

Here’s the result:

SQL Server 2008 has a new feature where you can script out data in tables via INSERT statements. Just do the following:

1. Right click on the database and select "Generate Scripts..."


2. Select the database.


3. This is the hidden part. Set "Script Data" to true.


4. Select Tables.


5. Select Tables.


6. You can script out a table script per file or as a single file. I prefer ANSI text.


7. Hit Finish.

Add a Covered Index to tables to get rid of “bookmark lookups.” The idea of bookmarks: SQL Server uses Bookmarks when you use columns in your query that are not non-clustered/clustered indexes. So if we have something like this:

SELECT  AreaID,
        ContentID,
        ApprovalCodeID,
        isSubmissionPoint
 
FROM    ContentAreas
 
WHERE   AreaID = 31
        AND ContentID > 30000
        AND ModifierID > 65000

And let’s say that AreaID is a clustered index and ContentID is a non-clustered index. If ModifierID is not an index of any kind, it would function as a “bookmark lookup” in this query. To not use a “bookmark lookup,” use a Covered Index, which clumping the Modifier column with ContentID and turning both into a Covered Index (a kind of composite index).