Converting An Existing Database(ASCII) To Unicode UTF 8

Oct 6, 2006

Adedoyin Akinnurun writes "i have a database that is running using regular ascii characters.. i am trying to migrate this database to support several other languges(globalization). I need ideas on how to migrate this database to UTF 8 .
Someone suggested converting all the varchar and char to nvarchar and nchar .. but i have a lot of data on the system and this might take a lot of time..
Any ideas would be appreciated !!!!"

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hi,
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Hi everyone,



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I tried it this way but it gives error like "connection property is not initialised" it is on executenonquery row in the code...

Dim cmd = New SqlCommand("BULK INSERT RFID.dbo.stock(material_number,total) FROM 'C:can1.txt' " & _

"WITH FIELDTERMINATOR = ',', ROWTERMINATOR = '' ")

connection.Open()

cmd.executenonquery()

connection.Close()



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Hi everyone,

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I created my DB in VB express but I couldn't find out how to send the read data (that will be either in XML or ASCII format) to my database...The read data will be transferred to my computer by the RFID reader's software but after that I don'T know how to transfer it to my DB.As I know I have to use commands like read.xml etc,but no idea how write the complete program.

I checked the forum and couldn't find the answer,sorry if someone already answered my question and I missed it.



Thanks...



Can

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Good afternoon

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Aug 8, 2006

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The table in SQL Server database has collation Latin1_General_CI_AS and one of the columns is a NVARCHAR with collation Indic_General_90_CI_AS. This should be a Unicode only collation. However when storing for instance the following String:




‚¬_£_ÙÚÜÛùúüû_ÅÆØåæøߣÇçÑñ_¼½¾_ЎўЄєÒ?Ò‘_прÑ?туф_ЂЉЊЋ
... it is saved with ? for all unicode characters as follows (when looking in the database):
‚¬_£_ÙÚÜÛùúüû_ÅÆØåæøߣÇçÑñ_¼½¾_??????_??????_????





The above is not correct, since all unicode characters should still be visible. When inserting the same string directly into the sql server database (without using Java) the result is ok.

Also when trying to retrieve the results again it complains about the following error within Java:





Codepage 0 is not supported by the Java environment.




Hopefully somebody has an answer for this problem. When I alter the collation of the NVARCHAR column to be Latin1_General_CI_AS as well, the data can be stored and retrieved however then of course the unicode specific characters are lost and results into ? So in that case the output is as described above (ie ‚¬_£_ÙÚÜÛùúüû_ÅÆØåæøߣÇçÑñ_¼½¾_??????_??????_????)

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Thanks in advance for your help.

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1) Grab subset of data from SOURCE
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3) Converts to STRING. (Data Conversion)
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I have also tried to simply convert the values to STRING, but that doesn't work either.

So, I have 2 Data Conversions working here that process most of the data correctly. What I can do to load the DESCRIPTION column?

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May 14, 2008

Hi guys and gals,

I've had some great headaches with SSIS this morning, which I have managed to get a workarounds for, but I'm not happy with them so I've come to ask for advice.

Basically, I am exporting data from an SQL Server database into an Excel spreadsheet and hitting issues with unicode and non-unicode data types.

For example, I have a column that is char(6) and have added a data conversion step to the data flow, which converts it to type DT_WSTR and then everything works!

However, this seems like a completely un-neccessary step as I should be able to do the conversion in T-SQL - but no matter what I try I keep getting the same problem.

SELECT Cast(employee_number As nvarchar(255)) As [employee_number]
FROM employee
WHERE forename = 'george'

ErrorValidation error. details: 1 [1123]: Column "employee_number" cannot convert between unicode and non-unicode string data types.

I know I have a solution (read: workaround) but I really don't want to do this everytime!

Any suggestions for what else to try?

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Apr 6, 2006

I have an Excel Source component hooked to an OLE DB Destination component in my SSIS 2005 Data Flow Task.  After I mapped the excel columns to the OLE DB table columns i get these errors below.  I noticed that for the first error, the Excel Field format (when you mouse over the column name in the mappings section in OLE DB component) is of type [DTWSTR] and the corresponding SQL field from my SQL table that it's mapping to is of type [DT_STR] when mousing over that field in the mappings in the properties of my OLE DB component.  All table fields in SQL Server for the table I'm inserting into are of type varchar.

print screens here:

http://www.webfound.net/excel_ssis.jpg

http://www.webfound.net/excel_to_oledb_mappings.jpg

Package Validation Error

------------------------------
ADDITIONAL INFORMATION:

Error at Data Flow Task [OLE DB Destination [27]]: Columns "Commission Agency" and "CommissionAgency" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Destination [27]]: Column "Product" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Destination [27]]: Columns "Officer Code" and "OfficerCode" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Destination [27]]: Columns "Agency Name" and "AgencyName" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Destination [27]]: Columns "Agency Id" and "AgencyID" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Destination [27]]: Columns "Tran Code" and "TranCode" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Destination [27]]: Columns "User Id" and "UserID" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [OLE DB Destination [27]]: Columns "Acct Number" and "AccountNumber" cannot convert between unicode and non-unicode string data types.

Error at Data Flow Task [DTS.Pipeline]: "component "OLE DB Destination" (27)" failed validation and returned validation status "VS_ISBROKEN".

Error at Data Flow Task [DTS.Pipeline]: One or more component failed validation.

Error at Data Flow Task: There were errors during task validation.

 (Microsoft.DataTransformationServices.VsIntegration)

 

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Jan 15, 2007

HI.

I'm having this problem.

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Destinated collumns in SQL are defined as varchar and char.



Thanks for help

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May 7, 2009

For packages that I have created to read Oracle 10g tables, that work fine with debugging in 32-bit mode, I get an error message on all string fields when I try to run in 64-bit mode.  An example error message is:[OLE DB Source [1]] Error: Column "ACCT_UNIT" cannot convert between unicode and non-unicode string data types.Another interesting warning included is:[OLE DB Source [1]] Warning: The external columns for component "OLE DB Source" (1) are out of synchronization with the data source columns. The external column "ACCT_UNIT" needs to be updated.I cannot even try to convert this data with a Data Conversion item because the (red) error is on the OLE DB Source item and stops there.  It doesn't matter what the destination is or even if there is a destination in the package yet.I'm using Oracle Provider for OLE DB, Oracle Client version 10.203 for 32-bit and Oracle Client 10.204 for 64-bit.Oracle is 10g on a UNIX 64-bit server and the data is not unicode.I'm using SQL Server Enterprise 2008 (10.0.1600) on Windows Server 2008 Standard SP1 on a 64-bit server.The packages work fine in 32-bit mode and the data is not unicode data.  When I change Run64BitRuntime to True in the Debugging Property Page, I get the error on the OLE DB Source item.  I also get the error when I schedule a package to run using the SQL Server Agent.

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Mar 7, 2008

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Thank You in advance.

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Mar 26, 2007

Hi,We have stored proc name proc_test(str nvarchar(30)). So far this prochas been invoked from a .NET application assuming that only Englishcharacter strings will be passed to it. The calls are likeproc_test('XYZ')We now have a requirement for passing Chinese strings as well. Ratherthan changing the calls throughout the application, we would like tohandle it in the stored procedure so that it treats the string as aunicode string. Can we apply some function to the parameter to convertit to unicode so that we don't have to call with an N prefixed to thestring?Thanks,Yash

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d

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I have a problem with Insert and Update Unicode data to database
I can send Unicode data using string with N prefix (Ref 001)

Below I write some line of my SP
But It does not write Unicode data to table, it writes like ????????
How to insert data using n prefix with Declared Variable?
How can avoid this problem?
Any other method to pass unicode data using SP?
Please help me...

column UnitName nvarchar

Sample Stored Procedure (SP)
SP header:

CREATE PROCEDURE ltrsp_AddEditUnit
@UnitID char(4),
@UnitName nvarchar(20),
@UtrID int

Insert:

INSERT INTO ltrtb_Unit (UnitID,UnitName,UtrID) VALUES (@UnitID,@UnitName,@UtrID)

Update:
---
UPDATE
ltrtb_Unit
SET
UnitName=@UnitName, UtrID=@UtrID

WHERE
UnitID=@UnitID



Ref 001:

found a method to insert unicode data to table (Using N' prefix), but I want to add using declared variable

INSERT INTO ltrtb_UserLevel (UserLevel,Description) VALUES (1,N'Unicode String')
From the URL,
http://databases.aspfaq.com/general/why-do-some-sql-strings-have-an-n-prefix.html

But I need to know how to pass the data using stored procedure

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Aug 14, 2007

I got following problems during copying database around different hosts.

Could anyone help me?

BR.
nathan

Event Type: Error
Event Source: SQLISPackage
Event Category: None
Event ID: 12550
Date: 8/15/2007
Time: 2:53:51 AM
User: NT AUTHORITYSYSTEM
Computer: DB1
Description:
Event Name: OnError
Message: ERROR : errorCode=-1071636471 description=SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Unicode conversion failed".
helpFile=dtsmsg.rll helpContext=0 idofInterfaceWithError={8BDFE893-E9D8-4D23-9739-DA807BCDC2AC}
StackTrace: at Microsoft.SqlServer.Management.Dts.DtsTransferProvider.ExecuteTransfer()
at Microsoft.SqlServer.Management.Smo.Transfer.TransferData()
at Microsoft.SqlServer.Dts.Tasks.TransferObjectsTask.TransferObjectsTask.TransferDatabasesUsingSMOTransfer()
Operator: NT AUTHORITYSYSTEM
Source Name: db_pushfun_com_DB1_Transfer Objects Task
Source ID: {939367C5-D98E-4C92-9688-9F32595DB981}
Execution ID: {09E39535-95E0-47EC-B49C-803B0986B1BB}
Start Time: 8/15/2007 2:53:51 AM
End Time: 8/15/2007 2:53:51 AM
Data Code: 0

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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