Creating Custom Primary Key In SQL Server 2005

Mar 11, 2008

I currently have a website which is using ASP.NET 2.0, C#, and SQL
Server 2005. The website will be used to enter grants for a
university. When a new grant is entered, I need to generate a primary
key. The primary key will need to follow the format: Two digit for
fiscal year, then number of the grant for that year. Example:

Year 08 and 14th grant of the year would be: 0814

How can I implement this. Right now, I have a "New Grant.aspx" page
with a Submit button. I am guessing the date is going to be formatted
in C#. How can I check what the last primary key in the database is?
Also, it seems to me that SQL Server insists that the primary key be
32 bits long, however my primary key will only be 4. How can I
override this? Thanks.

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SQL 2005: Creating Custom Primary Key

Mar 27, 2008

Hello everyone!

Even though I am not "new to SQL Server", my experience in working with it has ebbed and flowed, and working with SQL Server is not something that happens for me even on a monthly basis.

I work as an in-house programmer for a financial investment company and I have been asked to work on a database that is to hold financial data.

One of the requirements for the tables has been that the Primary Key should be [name_of_the_table] + [Identity].

So, for example, for table "tblEquities", the values of the Primary Key would be:

PK
-------
tblEquities1
tblEquities2
tblEquities3
tblEquities4
tblEquities5


My questions are:
1) Is it possible to achieve this by using just one column, as in defining a formula for the "Computed Column Specification" , something that would look like "'tblEquities' + Identity()"?
2) If the above is not possible, I assume it's much easier to just define a column as being Identity column and then create a 2nd computed column that would aggregate the name of the table with the value in the Identity column, so that I end up with a column holding the desired values? (I guess it would look something like
"'tblEquities' + [Identity]")

Also, I have been asked to find out what SQL 2005 have/offers, in term of guaranteeing referential integrity. Are the "Database Diagram", as well as the "Relationships" dialog box, the tools that would meet that criteria or does SQL 2005 contain other tools that would help in this regard?

Thank you!

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Creating A Primary Key Column In SQL Server 2005

Feb 1, 2008

I have a varchar column in a table, which is an unique key column. Now when I design this table should I use this column as a primary key or should I add one more Integer column as a primary key column for the performance?

One more point is, when ever I do a search on this table I will search based on that unique varchar column values only, so even then if I add new integer column just for Primary key I will not use this column for searching values.

With these information, can some body help me in deciding this?

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SQL Server 2012 :: Creating Continuous Primary Key Integer Value

Jun 26, 2014

Discuss the following sql query with respect to performance in an applicaiton involving more number of concurrent users creating and deleting records. The objective is to create continuous primary key integer values.

Table name: SitePage

Column DataType
--------- -----------

PageID BigINT
PageName nchar(10)

Query to insert new record

DECLARE @intFlag INT
SET @intFlag = 0
WHILE (@intFlag =0)
BEGIN
BEGIN TRY

[Code] ....

We don't want to use auto increment integer value for primary key because of the following reason

[URL] .....

We also don't want to use SEQUENCE as we have to create 50 sequence for 50 tables

We can't do trace flag 272

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SQL Server 2008 :: Creating Primary Key On Temporary Table?

Apr 30, 2015

Environment: Microsoft SQL Server Standard Edition (64-bit), 10.0.5520.0

I was doing a code review for another developer and came across this code:

CREATE TABLE dbo.#ABC
(
ReportRunTime DATETIME
,SourceID VARCHAR(3)
,VisitID VARCHAR(30)
,BaseID VARCHAR(25)

[Code] ....

This EXECUTES with no error or warning message.However, if I change this to CREATE the PK in an ALTER TABLE statement, I get the (expected by me) error:

CREATE TABLE dbo.#ABC
(
ReportRunTime DATETIME
,SourceID VARCHAR(3)
,VisitID VARCHAR(30)
,BaseID VARCHAR(25)
,OccurrenceSeqID INT

[code]...

==> Msg 8111, Level 16, State 1, Line 17 Cannot define PRIMARY KEY constraint on nullable column in table '#ABC'.

==> Msg 1750, Level 16, State 0, Line 17 Could not create constraint. See previous errors.

(note: As the #ABC table is an actual copy of a few of the columns in a "permanent" table, I will likely change the definition as follows such that the columns are defined to match the names / datatypes / NULLability:

SELECT TOP 0
CAST('01-01-1980' AS DATETIME) AS [ReportRunTime]
,SourceID
,VisitID
,BaseID
,OccurrenceSeqID

[Code] .....

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Custom Primary Key

Apr 4, 2006

Not sure where to post this as it may be a form operation but here goes...I want to generate a custom unique identifier for a table similar to the Northwind Customers database (ie ALFKI, ANTON, etc...) which can be used as a descriptive identifier as well.  For example, I have a Products table and I want to have my keys look like: CHR-0001-05."CHR" is my abbreviation for Chairs"0001" is the auto-incrementing number (in this case the first record of the table)"05" is the last 2 digits of the year recieved (2005)Can somebody please point me in the right direction?  I'm having problems finding resources on the web relating to this topic (prolly not using the correct keywords for my searches)Cheers =)

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Attn Microsoft : Incorrect Screenshot - SQL Server Integration Services (SSIS) Hands On Training - Creating Custom Components

Jun 25, 2006

Hi All,

I am not sure if this is a correct forum to discuss on the document posted @ http://www.microsoft.com/downloads/details.aspx?familyid=1c2a7dd2-3ec3-4641-9407-a5a337bea7d3&displaylang=en on SQL Server Integration Services (SSIS) Hands on Training - Creating Custom Components.

I am assuming Microsoft Developers are constantly monitoring this forum.

In the document - SSIS Creating a Custom Transformation Component .doc on Page 2 -
Exercise 1 - Writing the no-op data flow transformation component -
Task 1 - Create a new C# Class Library Project

The textual description talks about creating a new Visual C# Class Library project in VS 2005 but the screenshot accompanying it shows the creation of new "Integration Service Project" in VS 2005.

Please change the screenshot appropriately to avoid confusions.

Thanks,
Loonysan

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Identity Column Primary Key Vs Custom Key

May 22, 2008

We are developing a batabase which is meant for financial domain,so it will import data from different source system..
and data from our data base will be further passed to other applications.

In contex of our system integration with other data sources ,whether is it a good idea to have a auto integer primary key a or to implement some logic to generate primary key?

Can some one guide us to some pratical data base design case studies?or some best practices.?

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T-SQL (SS2K8) :: Creating A Custom Column?

May 14, 2014

creating a custom column that will put a list of 5 values for each unique value(or in this case Employee).

So I have a Employee table were I pull a list of all active employees -

Example -

024Swanson, Ronrswanson@tv.com
026Donaughy, Jackjdonaughy@tv.com
028Scott, Michaelsmichael@tv.com

What I want to do is add a column that has 5 values and create a row for each value

I want it too look like this -

024Swanson, Ronrswanson@tv.com a
024Swanson, Ronrswanson@tv.com b
024Swanson, Ronrswanson@tv.com c
024Swanson, Ronrswanson@tv.com d
024Swanson, Ronrswanson@tv.com e

[Code] ....

Currently all my query looks like is this -

SELECT EmpID, LastFirst, Email
FROM dbo.EmpList
WHERE (Active = 1)

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Oct 4, 2006

I have a package that is going to have roughly 20 sequence containers in it. Each of these containers is going to have the same start task and the same end task. The data flow task(s) in each sequence container will differ. So I was thinking I would create a custom sequence container that would implement the common steps I need in each of my containers. I started to create a task that would inherit from Sequence, but I found that it is sealed. Bummer.

What is involved in creating a sequence task by inheriting from Task? I see that Sequence implements IDtsSequence. But looking at this interface, it seems like I would have to build the logic to execute the workflow contained in my sequence.

Any pointers?

-Darrell

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Creating A Primary Key

Jun 3, 2008

Completely new to SQL so wondered if anyone could help with an issue I'm sure there is a simple answer too.

Need to create a Primary Key for an existing table. Now I have managed to create a new column called _ID, which set the contents to NULL. So populated the column with the number 1 so that I could set it to no null.

Now when I run the query:

ALTER TABLE tablename ADD PRIMARY KEY (_ID);

I get the error:

The CREATE UNIQUE INDEX statement terminated because a duplicate key was found for the object name 'dbo._DATACAPTURE' and the index name 'PK___DATACAPTURE__145C0A3F'. The duplicate key value is (1).

Which is obviously due to the repeated 1 in _ID.

So I am thinking I just need to run a query that fills the _ID with a unique number.

Any ideas how I do that?

Thanks for your help in advance.

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Oct 20, 2006

Hello to everyone, I've a question about UDTs and the way I can use them to access tables and columns where they are applied in a SQL Server 2005 DB.
I've already spent 2 days googling and MSDN reading but nothing helped me to solve my problem, thats why I'm posting it here (this is the second post, maybe the last one was in the wrong Forum).

The scenario follows:

I've created a UDT called MyUDT that exposes 2 properties MyTable, MyColumn, here its the code:


[Serializable]
[SqlUserDefinedType(Format.UserDefined, IsByteOrdered = true, MaxByteSize = 8000, Name = "MyUDT")]
public class MyUDT : INullable, IBinarySerialize
{

    private string _myTable;
    private string _myColumn;
....    

    /// <summary>
    /// Set or Get the Table Name where the UDT is applied.
    /// </summary>
    public string MyTable {
        get { return this._myTable; }
        set { this._myTable = value; }
    }

    /// <summary>
    /// Set or Get the Table's Column Name where the UDT is applied.
    /// </summary>
    public string MyColumn
    {
        get { return this._myColumn; }
        set { this._myColumn = value; }
    }

....

}


And here it's my question/s:

How can I expose the defined Properties (MyTable, MyColumn) in order to be directly used from
SQL Server Management Studio within the Column Properties Panel?

Pls take a look to the print screen placed below:

[img=http://img81.imageshack.us/img81/7193/untitledip1.th.jpg]

 
If it is not possible, is there a way for any UDT to get back from the sql server execution context
the table and the column where it is applied/used?

I need to solve that in order to later retrieve via SQL the Extended Table Properties where the UDT is used
and make some work on presented MetaData. Thanks in advance, every answer/help will be very much appreciated.


 

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Nov 13, 2004

Hi folks, i need ur guidance.
I have a few DDL and DML scripts which i want to be automatically applied during MSDE setup; or an .MDF file be attached automatically. Please suggest an easier way!



Howdy!

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Dec 20, 2007

Hello,

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Any ideas why that is?

Thank you.

-Gumbatman

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Jan 15, 2008

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Thanks

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Apr 10, 2006

Microsoft published a "Creating a custom transformation component Walkthrough" published on

http://www.microsoft.com/downloads/details.aspx?FamilyID=1c2a7dd2-3ec3-4641-9407-a5a337bea7d3&DisplayLang=en

Does anyone know where to get the Hands-On Lab Files mentioned?

Thanks

Alex

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Feb 28, 2006

http://msdn2.microsoft.com/en-us/library/ms345276.aspx

does anyone know where this can be obtained? it did not come with the RTM. it does not seem to be available via download either?

a little help here!

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Feb 14, 2006

Hi,

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I only found a property in IDTSOuptut90 named isErrorOut - a boolean property indicating whether this output is an error output or not.

Does anyone have additional documentation / articles / code samples regarding how to really populate the rows in the error output?

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Hi

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Jan 17, 2008

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I followed this guide written by James Yip, http://forums.microsoft.com/TechNet/AddPost.aspx?ForumID=82&SiteID=17, and managed to compile my SampleRenderer class and properly configure SRSS so that my 'Sample' export format is now available in the export dropdown in Report Manager.


However, upon actually exporting a report, the result is a blank file. I have absolutely no idea why the stream I create isn't getting through to the final file.

Here is my render method:




Code Block
public bool Render(Microsoft.ReportingServices.ReportRendering.Report report, System.Collections.Specialized.NameValueCollection reportServerParameters, System.Collections.Specialized.NameValueCollection deviceInfo, System.Collections.Specialized.NameValueCollection clientCapabilities, EvaluateHeaderFooterExpressions evaluateHeaderFooterExpressions, CreateAndRegisterStream createAndRegisterStream)
{

System.IO.Stream stream = null;
System.IO.StreamWriter streamWriter = null;



try
{

stream = createAndRegisterStream("users", "txt",System.Text.Encoding.ASCII, "text/plain", false, StreamOper.CreateAndRegister);

streamWriter = new System.IO.StreamWriter(stream);
streamWriter.WriteLine("Hello???");
}
finally
{

if (streamWriter != null)
{

//streamWriter.Close();
//closing the stream here results in an exception
}
if (stream != null)
{

//stream.Close();
}
}

return false;
}






Any ideas on what I am doing wrong here?

Thanks,
Dan

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Feb 2, 2004

Hi

I'm trying to create a composite Primary Key on a table. This is the SQL I've written:

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(
BookingID INT NOT NULL
REFERENCES Bookings(BookingID),
EquipmentTypeID INT NOT NULL
REFERENCES EquipmentType(EquipmentTypeID),
CONSTRAINT PK_BookingItems_id PRIMARY KEY
(BookingID, EquipmentTypeID)
)

Is this right? I'm trying to define a Primary Key made up of BookingID and EquipmentTypesID, which are both Foreign Keys as defined in the column definition.

Thanks
Jon

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Aug 19, 2002

Thanks to help from Ray Maio I have been able to create copies of various tables using the Select Into command.
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I have attempted to create an index by using the following statement:

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I did not get an error, but can't tell ift the index was created. The question is, how do I find out if
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Jun 29, 2006

Hi,

I need to create a new table in our database.
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either way, coudl anyone tell me how to create a primary key ni the CREATE TABLE statement.
I have tried searching but cannot find the answer.

many thanks,
Matt

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Oct 17, 2005

Hi all,I've spent hours trying to find the error in the following SQL 2000command:ALTER TABLE [ClientList] ADD CONSTRAINT [PK_ClientList] PRIMARY KEYCLUSTERED ([PhoneNo]) On [PRIMARY]Every time I try to "Execute" this from my (VB5) ODBC connection I get:Runtime error 3289;Syntax error in CONSTRAINT clauseFor the life of me I can see nothing wrong. I used Enterprise managerto create this statement, and I can create the primary key fine fromthere. The PhoneNo field does not allow NULLs.Everything is service-packed up to date. I have tried using[databasename].[dbo].[ClientList] and suchlike.I've tried to find a relevant manual, but my SQL Server developersguide suggests this should be ok and I can't see anything wrong in thebooks online.Can anybody please help?TIA

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Sep 17, 2007



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Mar 29, 2008



I designed dll file to get data from sql server, i am calling the dll from ssrs 2005
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<CodeGroup
class="SqlClientPermission"
version="1"
Name="MySecurityExtensionCodeGroup"
Description="Code Group for Don's test security extension"
PermissionSetName="FullTrust">
<IMembershipCondition
class="UrlMembershipCondition"
version="1"
Url="C:Program FilesMicrosoft SQL ServerMSSQLReporting
ServicesReportServerinMyAssembly.dll"
/>
</CodeGroup>

i still get #Error

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pls help

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Nov 7, 2007


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how the setup can install the custom instance name.?

Di i need to use install sheid for this ?

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Hello, How are you?
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Aug 14, 2007

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Jul 12, 2004

This question may be a little complicated.

I am building a DTS Package that is moving data from our webstore (written in house) to a Warehouse Management System(WMS - Turnkey) and I've encountered a problem. both pieces of software have an orders table and an Ordered_Items table, related by the order_ID (makes sense so far). Here is the problem. The primary key on the webstore's Ordered_Items table is a single column (basically an Identity variable), while the primary key on the WMS's Ordered_Items table is a dual column primary key, between the Order_ID and the Order_LineID, so the data should be stored like:

OrderID Order_LineID
1 1
2 1
2 2
2 3
3 1
3 2
4 1

Get the Idea? So I have to create this new Order_LineID column. How can I accomplish this with a SQL statement?

Thanks!!!!!

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May 30, 2000

I created table and also I define the primary key its okay

but when I generate the SQL script for that table its not
creating the primary key

CREATE TABLE [dbo].[table1] (
[emp_id] [int] NOT NULL ,
[emp_name] [char] (25) NULL ,
[emp_address] [nvarchar] (50) NULL
) ON [PRIMARY]
GO


PS: I want to use emp_id as primary key but its not defined in the sql script

Thankx a lot

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Jul 18, 2007

Hi,



I have created a very simple table. Here is the script:

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[IndexTable]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[IndexTable]

GO

CREATE TABLE [dbo].[IndexTable] (
[Id] [int] NOT NULL ,
[Code] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
) ON [PRIMARY]

GO


CREATE CLUSTERED INDEX [CusteredOnCode] ON [dbo].[IndexTable]([Id]) ON [PRIMARY]

GO

ALTER TABLE [dbo].[IndexTable] ADD
CONSTRAINT [PrimaryKeyOnId] PRIMARY KEY NONCLUSTERED
(
[Id]
) ON [PRIMARY]
GO



The records that i added are:

Id Code

1 a
2 b
3 aa
4 bb

Now when i query like

Select * from IndexTable

I expect the results as:

Id Code

1 a
3 aa
2 b
4 bb

as i have the clustered index on column Code.

But i m getting the results as:

Id Code

1 a
2 b
3 aa
4 bb

as per the primary key order that is a non clustered index.

Can anyone explain why it is happening?


Thanks

Nitin

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