Converting DB2 Timestamp Data To SQL Server 2005 - Problems With Unique Index
May 24, 2007
I am attempting to move a timestamp data column from DB2 to SQL Server 2005. Normally not a big deal but the column is part of unique index.
The DB2 timestamp has seconds of ss.ssssss but SQL Server only has ss.sss.
Most all the times entered into this column are a from an automated process so they are really close together timewise.
Here is what I have come up with so far:
1. Fast Load OLEDB with a batch of 10,000 records at a time
2. On the fail of the batch redirect rows to a regular table load OLEDB insert task
3. On the fail of the single insert redirect rows to script that ups the seconds one tick.
4. Attempt one last insert of the modified rows
5. If fail, then store the record off to a delimited text file
I am hoping to get the number of records that wind up in the delimited text file to be a very small number and not in the 1,000+.
Any help would be appreciated.
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Jun 19, 2007
I am populating oracle source in Sql Server Destination. after few rows it fails it displays this error:
[OLE DB Destination [16]] Error: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description:
"Invalid date format".
I used this script component using the following code in between the adapters, However after 9,500 rows it failed again giving the same above error:
To convert Oracle timestamp to Sql Server timestamp
If Row.CALCULATEDETADATECUST_IsNull = False Then
If IsDate(DateSerial(Row.CALCULATEDETADATECUST.Year, Row.CALCULATEDETADATECUST.Month, Row.CALCULATEDETADATECUST.Day)) Then
dt = Row.CALCULATEDETADATECUST
Row.CALCULATEDETADATECUSTD = dt
End If
End If
I don't know if my code is right . Please inform, how i can achieve this.
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Aug 9, 2006
Hi,
When I create a unique constraint, SQL Server automatically creates an index on this constraint. So when I run the following...
ALTER TABLE PersonsProjects
WITH NOCHECK ADD CONSTRAINT NoDupes UNIQUE NONCLUSTERED (PersonID, ProjectID)
...SQL Server will create a composite index on PersonsProjects called NoDupes on PersonIDand ProjectID. Thing is, I need this index to include a third column Status since most queries use this column in conjunction with PersonID and ProjectID. If there was no index on this table, I would have created it as follows:
CREATE UNIQUE INDEX NoDupes ON PersonsProjects (PersonID, ProjectID) INCLUDE (Status) WITH IGNORE_DUP_KEY
But this won't enforce the unique constraint on PersonID and ProjectID when performing inserts and updates. Is there any way of creating a unique constraint with an included column?
I would rather not have two indexes...
NoDupes: PersonID,ProjectID
New Index: PersonID,ProjectID INCLUDE Status
...so I'm trying to determine what other options that might be available...please advise.
Thanks much.
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Jul 5, 2015
This index is not unique
ix_report_history_creative_id
Msg 2601, Level 14, State 1, Procedure DFP_report_load, Line 161
Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'.
The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324).
Msg 3621, Level 0, State 0, Procedure DFP_report_load, Line 161
The statement has been terminated.
Exception in Task: Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'. The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324).
The statement has been terminated.
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Jan 30, 2008
Is there a simple way to find properties of an index for a table? Specifically I am looking for the unique property. I currently have code to to do this, however I feel like there must be some easier way.
I am using .net 2005 and SQL 2005 coding in c#. Thanks for any help!
Code Snippet
_conn.Open();
SqlCommand cmd = new SqlCommand("sp_helpindex", _conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@objname", "TABLENAME"));
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(results);
foreach (DataRow row in results.Tables[0].Rows)
{
ArrayList names = new ArrayList();
DataTable dtUnique = new DataTable();
SqlCommand cmd2 = this._conn.CreateCommand();
cmd2.CommandText = String.Format("SELECT INDEXPROPERTY(OBJECT_ID('TABLENAME'), 'INDEXNAME', 'IsUnique') AS isUnique");
dtUnique.Load(cmd2.ExecuteReader());
bool unique = Convert.ToBoolean(dtUnique.Rows[0]["isUnique"]);
if (unique)
names.Add(tableName);
}
_conn.Close();
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Sep 24, 2015
I have a transaction table having about 40 crore rows in source. It don't have timestamp and unique key columns. It have only Bill_month and Bill_Year columns. Actually for loading this table into staging I have added a new datetime column by adding default bill_date as 01. Then
* First we delete last 3 month data from staging tables.
* Get last 3 months data from source table.
* Load that 3 months data from source to staging table.Â
We do this because we only get update for last three months data. Now I have to include this transaction table as Fact table in DW. What will be the best practice for loading the fact table by picking data form staging table. Also we have to look up with dimensions for Foreign Keys.Â
* Should I implement the same method of deleting last 3 months records and loading them again.Â
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Jun 28, 2007
Hello,
Finally making the move to ASP.NET! I've been advised that to begin with it is probably best to start using SQL Server 2005 with ASP.NET. All my sites are currently using MySQL. Can anyone advise a way for me to import all the data from a MySQL database to a SQL Server 2005 database. Apologies if this isn't directly related to ASP.NET but any help would be greatly appreciated.
Thanks
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May 4, 2006
I have a large (huge) database that I want to copy onto my new slq 2005 test server. I'm leaning toward detaching the data on my 2000 box, duplicating it, copying it to my new 2005 machine, and attaching it. Is it possible that it could be that simple? If not, how is it done? Thanks a bunch for any help or pointers to the articles I was totally unable to find on the subject.
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Nov 6, 2007
Hi,
i need to create a sql statement to get the latest timestamp for a user and am struggling
my table once it has been joined has
employee id door permiter door time
1 1 yes 12/12/2002 10:00
1 1 yes 13/12/2002 10:00
1 1 yes 14/12/2002 10:00
2 1 yes 12/12/2002 10:00
2 1 yes 13/12/2002 10:00
3 1 yes 12/12/2002 10:00
4 1 yes 12/12/2002 10:00
So what i would like returned from this would be:
employee id door permiter door time
1 1 yes 14/12/2002 10:00
2 1 yes 13/12/2002 10:00
3 1 yes 12/12/2002 10:00
4 1 yes 12/12/2002 10:00
could someone give me a pointer on this....very new to SQL
thanks
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Mar 4, 2008
What is unique index in sql server 2k?
plz some one help me out, thanx
Rahul Arora
07 Batch
NCCE Israna,
######################
IMPOSSIBLE = I+M+POSSIBLE
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May 26, 2008
Hi all
I have a table, and contains one coloum with timestamp data type,
so i can retrieve timestamp coloum data by executing following query
select CONVERT (int, timestamp_coloum ) from MyTable
Query result as follow
4003
4017
4036
4041... etc......
I just want to know is this result ( out put vale after converted timestamp to INT ) is unique for entire Database ???
Thanks
IndikaD (Virtusa cop)
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Sep 22, 2004
A UNIQUE INDEX must inherently impose a unique constraint and a UNIQUE CONSTRAINT is most likely implemented via a UNIQUE INDEX. So what is the difference? When you create in Enterprise Manager you must select one or the other.
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Jul 20, 2005
HelloWhat should I use for better perfomance sinceunique constraint always use index ?ThanksKamil
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Jun 24, 2006
What's the difference in the effect of the followings:
CREATE UNIQUE NONCLUSTERED INDEX
and
ALTER TABLE dbo.titles ADD CONSTRAINT
titleind UNIQUE NONCLUSTERED
I found there're two settings in Indexs/Keys dialog box of the management studio, Is Unique, and Type. The DDL statements above are generated by setting Is Unique to yes plus Type to Index, and just Type to Unique Key, respectively. What's the difference between them?
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Mar 20, 2015
I am trying to create a unique index on a table such that the combination of 2 columns is unique. How do I go about that?
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Oct 30, 2015
Give a user table ‘MyTable’. How to know whether the table contains a non-unique clustered index by using SQL query?
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Nov 23, 2006
CREATE FUNCTION dbo.fnTS2VC
(
@ts BINARY(8)
)
RETURNS VARCHAR(16)
AS
BEGIN
RETURNSUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 1, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 1, 1) AS TINYINT) % 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 2, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 2, 1) AS TINYINT) % 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 3, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 3, 1) AS TINYINT) % 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 4, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 4, 1) AS TINYINT) % 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 5, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 5, 1) AS TINYINT) % 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 6, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 6, 1) AS TINYINT) % 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 7, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 7, 1) AS TINYINT) % 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 8, 1) AS TINYINT) / 16, 1)
+ SUBSTRING('0123456789ABCDEF', 1 + CAST(SUBSTRING(@ts, 8, 1) AS TINYINT) % 16, 1)
ENDCall with
SELECT dbo.fnTS2VC(@@DBTS)
You can also use SELECT CAST(@@DBTS AS BIGINT) if you only need to convert the TIMESTAMP value to INTEGER.
Peter Larsson
Helsingborg, Sweden
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Sep 30, 2015
Table Name: Denominator
Already has the following constraint:
PK_Denominatorclustered, unique, primary key located on PRIMARY DenominatorID
How can I add a unique key that will cover the 3 fields --> MemberID,MeasureID,TimePeriodID
I also want to know whether we can include the " WITH ( IGNORE_DUP_KEY=ON ) "
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Mar 7, 2001
Hi everyone,
I need urgent help to resolve this issue...
As far as the performance goes which one is better..
Unique Index(col1, col2) OR Unique constraint(col1, col2) ?
Unique constraint automatically adds a unique index
and unique index takes care of uniqueness then whats the use of unique constraint ?
Which one do one use ?
thanks
sonali
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Jan 20, 2006
BOL says a unique constraint is preferred over a unique index. It also states that a unique constraint creates a unique index. What then is the difference between the two, and why is a constraint preferred over the index?
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Mar 26, 2008
hi team,
.Can i create umique constraint with out unique index.when i am creating a unique constraint sql creates a unique index (default) can i have only unique constraint ?
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Nov 13, 2007
What 's difference between Unique key and unique index in SQL server 2005?
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Aug 4, 2014
I have an issue where I am getting an error on an unique index.
I know why I am getting the error but not sure how to get around it.
The query does a check on whether a unique value exists in the Insert/Select. If I run it one record at a time (SELECT TOP 1...) it works fine and just won't update it if the record exists.
But if I do it in a batch, I get the error. I assume this is because it does the checking on the file before records are written out and then writes out the records one at a time from a temporary table.
It thinks all the records are unique because it compares the records one at a time to the original table (where there would be no duplicates). But it doesn't check the records against each other. Then when it actually writes out the record, the duplicate is there.
How do I do a batch where the Insert/Select would write out the records without the duplicates as it does when I do it one record at a time.
CREATE TABLE #TestTable
(
Name varchar(50),
Email varchar (40)
)
Insert #TestTable (Name,Email) Values('Tom', 'tom@aol.com')
[Code] .....
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Oct 27, 2015
We are on SQL 2014...we have a bunch of views in a database where we are trying to find the views which have more than 16 columns max for unique index/constraint...this is needed so we can convert them to indexed views...
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Sep 20, 2007
Hello,
I apologise if this question has been asked before but I have searched forums and the web and have not found a solution. I am current creating a script that has a cursor that builds a sql statement to be executed e.g.
--code within cursor
SELECT '
DECLARE @Result INT
EXEC @Result = DELETE_DOCUMENT
@DocumentID = ' + STR(DocumentID) + ',
@TimeStamp =' + CAST([Timestamp] as varchar) + ',
-- CHECK RESULT AND STATUS
-- IF OK LOG IN META_BATCH ELSE LOG ERROR' AS SQL
FROM Document
The problem I am having is trying to join the timestamp column into the sql string. I have tried to cast the time stamp to a varchar but I end up with the following output for the timestamp column values
T
T€‘
T
xnÞ
T!
T"
T#
T$
T%
T&
T'
T(
T)
T*
T+
T,
instead of
0x0000000013540F1C
0x0000000013540F1E
0x0000000013540F1F
0x0000000013786EDE
0x0000000013540F21
0x0000000013540F22
0x0000000013540F23
0x0000000013540F24
0x0000000013540F25
0x0000000013540F26
0x0000000013540F27
0x0000000013540F28
0x0000000013540F29
0x0000000013540F2A
0x0000000013540F2B
0x0000000013540F2C
which would not allow my delete script to work correctly. So I would really appreciate some advice to a pointer to where I might find out how to convert the timestamp.
Thanks
Sam
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May 28, 2008
Hi,
i wanted to read some datasets from a table with the ROWVERSION. Then i wanted to save these records with the ROWVERION- Column in a temp table. Now it seems i cant explicitely write data in a ROWVERSION Column. As i understand its only possible to write a default value in such columns. Only SQL Server itself can write into ROWVERSION columns.
Am i right with this meaning?
Thx in advance...
Greets Kamei
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Jun 18, 2004
Can anyone give me a brief summary of this datatype? Anything that I would need to know to use this in tables that are populated via an asp web service.
Thanks!
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Apr 2, 2008
HI ALL.
I created one table
USE [testdb]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[WORKDAYS](
[ID] [int] NULL,
[DDATE] [datetime] NULL,
[BEGTIME] [timestamp] NULL,
[ENDTime] [int] NULL,
[DAYTYPE] [int] NOT NULL,
[NOTE] [nchar](255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
) ON [PRIMARY]
And I wand alter table ENDTime column type to TimeStamp and I get this error
'WORKDAYS1' table
- Unable to modify table.
A table can only have one timestamp column. Because table 'Tmp_WORKDAYS1' already has one, the column 'ENDTIME' cannot be added.
I using SQL SERVER Managment Studio 2005 Express.
What is this error?
Express Edition supporeted one timestamp column in a table???
Which way u are offer?
I want two column in a table do timestamp.
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Mar 29, 2004
Just found out that creating a unique index does not create a unique constraint, but creating a unique constraint creates unique index.
But effectively they do the same thing.
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May 8, 2008
How to findout whether a Index is unique or not?
------------------------
I think, therefore I am - Rene Descartes
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Mar 26, 2007
if this question is inappropriate here, I apologize (it's at least obliquely related). I have been using ssno as a unique key in a datawarehouse I have been working on because all of the component systems have had it. I now have a database to add where ssno is not available. I have first, last address, city, state,zip and dob.
Question is, how to construct a unique identifier from those components. If not unique, then at least usable?
Again, if this post is wrong here, I apologize
Thanks for any input
Walter
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Jun 14, 2007
I am sorry if this is the wrong forum for this question but I can not find better fit.
I am using Visual Studio 2005 to write an asp.net web site which includes an SQL data base. In the databaseI have a table called 'ACCOUNTS' which has primary key column called 'ID' and a nvarchar column called 'Name'.
I want the values in the 'Name' column to be unique in the table so that all accounts have unique names. I don't want to make the 'Name' column the primary key because I want people to be able to change the name of their account after it has been created.
It seems to me there must be some way to add such a constraint to the table but I can find none. I have searched the documentation and seen loads of references to unique columns but I can't find any way to set a column to unique thru the IDE (or any other way). Can anyone help me?
Thanks in advance for any help.
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Feb 6, 2007
This is for SQL 2000 (SP 2) using Enterprise Manager. I have a table with a unique index comprised of several int fields. The index needs to include an additional bit field that is part of the table. But when I go to modify the index, the bit field name doesn't appear in the Column Name list.
Can anyone shed any light on the problem?
Thanks.
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