Hi i'd like to know about varchar ,
when sql store data as nvarchar it store the actual length besides 2 bytes but the question is if there is another field does sql server store the next field besids nvarchar so there is no seprated bytes and is this exist and i update data of nvarchar does sql sqerver shifted the reamin data exist in the same track please send me the answering
In our application we have created a SSIS package which extracts data from staging table and places the same in destination table. We have created a slowly changing dimension for the same. Slowly changing dimension uses a composite business key of two columns to decide whether it is a old record or a new record.
Problem : On execution of the package it copies duplicate records with same business keys instead of updating the same. Also the same does not happen for all records. For few records update works fine but for others it inserts a new duplicate record.
I will appreciate if anybody can guide me where I am doing something wrong.
Thank you
Hello,
I am converting old MS Access queries to T-SQL and ran into a problem. The results of the same update queries returned different results. The idea is to subtract each of the amounts of Table2 from Table1:
Source sample tables and content:
Table1
ID Amount
1 100
Table2
ID Amount
1 10
1 20
1 30
In Access (Orginal source):
UPDATE Table1
INNER JOIN Table2
ON Table1.ID = Table2.ID
SET Table1.Amount = Table1.Amount - Table2.Amount
In T-SQL (Converted):
UPDATE Table1
SET Table1.Amount = Table1.Amount - Table2.Amount
FROM Table1 INNER JOIN Table2
ON Table1.ID = Table2.ID
Syntax for T-SQL is different from Access. When both queries are ran on their respective database, Table1.Amount in access became 40 (100 - 10 - 20 - 30), but Table1.Amount in SQL became 90 (100 - 10).
It looks as if in T-SQL it only ran one row? Or it could be that in T-SQL, updates written to the database in batches, hence why Table1.Amount was not updated for all update instances? Any help would be greatly appreciated.
Hi,
I have a Query like this and i am using fulltext search.
Select * FROM [Search]
WHERE (@limitByName = 0 OR CONTAINS([Name], @searchStringOR))
Say @limitByName is 0, will my second part still executes.???
How Sql server 2005 handles the OR part in WHERE clause.(Need detailed answer)..pls give any useful link to refer.
How can i find this, if i use Actual Execution plan.
Thanks in Advance,
Vijay.
I have read the articles posted online concerning different dialog reuse strategies. Most of them create a new table in the sender to hold dialog ids. I was wondering what is wrong, if anything, with the following approach:
Code Block
declare @dlg uniqueidentifier
select top 1 @dlg = conversation_handle from sys.conversation_endpoints where state IN ('CO')
if @dlg is null
begin
begin dialog conversation @dlg
from service [tcp://SFT3DEVSQL01:4022/TyMetrix360Audit/DataSender]
to service '//TyMetrix360Audit/DataWriter','386DDD04-7E55-466A-BE83-37EFC20910B9'
on contract [//TyMetrix360Audit/Contract] with encryption = off;
end
;send on conversation @dlg
message type [//TyMetrix360Audit/Message] (@msg)
Here I simply select a conversation handle directly from the sys.conversation_endpoints table. Can anyone see any issues with this approach?
Thanks in advance....
Hi,
I am developing an application to mail the Newsletters on a daily basis with Service Broker . I have a peculiar problem, that the queues associated with same dialog is giving different conversation handles. I'm testing the application with one mail at a time, i.e., there are not more than one item in both the queue at one point of time. But the handles returned by the queues are different within the same conversation.
Why it is happening like that ? I have taken backup of the original database and restored with a different name in the same instance (and will run "ALTER DATABASE db_name SET NEW_BROKER" for the new database) for some purpose. Can it cause problem ?
Please help.
Thanks in advance.
Regards
Babu
HI, I am running the below method which returns this error: The parameterized query '(@contactdate nvarchar(4000),@dnbnumber nvarchar(4000),@prospect' expects the parameter '@futureopportunity', which was not supplied" Please help.Private Shared Sub InsertData(ByVal sourceTable As System.Data.DataTable, ByVal destConnection As SqlConnection)
' old method: Lots of INSERT statements Dim rowscopied As Integer = 0
' first, create the insert command that we will call over and over:
destConnection.Open()Using ins As New SqlCommand("INSERT INTO [tblAppointmentDisposition] ([contactdate], [dnbnumber], [prospectname], [businessofficer], [phonemeeting], [followupcalldate2], [phonemeetingappt], [followupcalldate3], [appointmentdate], [appointmentlocation], [appointmentkept], [applicationgenerated], [applicationgenerated2], [applicationgenerated3], [comments], [newaccount], [futureopportunity]) VALUES (@contactdate, @dnbnumber, @prospectname, @businessofficer, @phonemeeting, @followupcalldate2, @phonemeetingappt, @followupcalldate3, @appointmentdate, @appointmentlocation, @appointmentkept, @applicationgenerated, @applicationgenerated2, @applicationgenerated3, @comments, @newaccount, @futureopportunity)", destConnection)
ins.CommandType = CommandType.Textins.Parameters.Add("@contactdate", SqlDbType.NVarChar)
ins.Parameters.Add("@dnbnumber", SqlDbType.NVarChar)ins.Parameters.Add("@prospectname", SqlDbType.Text)
ins.Parameters.Add("@businessofficer", SqlDbType.NChar)ins.Parameters.Add("@phonemeeting", SqlDbType.NVarChar)
ins.Parameters.Add("@followupcalldate2", SqlDbType.NVarChar)ins.Parameters.Add("@phonemeetingappt", SqlDbType.NVarChar)
ins.Parameters.Add("@followupcalldate3", SqlDbType.NVarChar)ins.Parameters.Add("@appointmentdate", SqlDbType.NVarChar)
ins.Parameters.Add("@appointmentlocation", SqlDbType.NVarChar)ins.Parameters.Add("@appointmentkept", SqlDbType.NVarChar)
ins.Parameters.Add("@applicationgenerated", SqlDbType.NVarChar)ins.Parameters.Add("@applicationgenerated2", SqlDbType.NVarChar)
ins.Parameters.Add("@applicationgenerated3", SqlDbType.NVarChar)ins.Parameters.Add("@comments", SqlDbType.Text)
ins.Parameters.Add("@newaccount", SqlDbType.NVarChar)ins.Parameters.Add("@futureopportunity", SqlDbType.NVarChar)
' and now, do the work: For Each r As DataRow In sourceTable.RowsFor i As Integer = 0 To 15
ins.Parameters(i).Value = r(i)
Next
ins.ExecuteNonQuery()
'If System.Threading.Interlocked.Increment(rowscopied) Mod 10000 = 0 Then
'Console.WriteLine("-- copied {0} rows.", rowscopied)
'End If
Next
End Using
destConnection.Close()
End Sub
I had this question for quite a long time.
It seems the latter one don't take any extra storage space than the previous one.
As long as the real string length is less than 10.
Is that mean the latter one not cost anything?
I once heard the different is when they are in memory. But not sure of it.
Can anyone explain it and provide some official reference on it?
Thank.
Columns from database have values like 1,5 etc and I'm getting the error: Syntax error converting the nvarchar value '1,5' to a column of data type int. when trying to convert from nvarchar to int:
SELECT CONVERT(int, MyNVarChar_column) FROM MyTable
What I'm doing wrong? Thanks a lot
I need help converting an nvarchar value to int. I receive a SQL error when running the following query...
"SELECT DISTINCT [Time Cards].TimeCardID, [Time Cards].Status, [Time Cards].Verification, [Time Card Hours].[Date Worked], [Time Card Hours].[Billable Hours], [Time Card Hours].[Billing Rate], [Time Card Hours].[Overtime Hours], [Time Card Hours].[Overtime Rate], Employees.FirstName, Employees.LastName, [Function].[Function], [Time Card Hours].[Invoiced Hours], [Time Card Hours].[Invoiced Overtime], [Time Cards].[30 Day Grace]
FROM [Function] INNER JOIN (Employees INNER JOIN ([Time Cards] INNER JOIN [Time Card Hours] ON [Time Cards].TimeCardID = [Time Card Hours].[Time Card ID]) ON Employees.EmployeeID = [Time Cards].EmployeeID) ON [Function].FunctionID = Employees.FunctionID
WHERE ((([Time Cards].[30 Day Grace])=-1));"
[Time Card Hours - nvarchar, Time Cards - int]
nvarchar(max) I have a nvarchar(MAX) “Description” field in my SQL Server 2005 database. Somewhere I think I read that nvarchar(MAX) is the size of 4000. My question is in my Insert Stored Proc set ANSI_NULLS ONset QUOTED_IDENTIFIER ONGOALTER PROCEDURE [dbo].[syl_CodeScheduleTypeInsert] @ScheduleName nvarchar(50), @ScheduleDescription nvarchar(????????)ASBEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; BEGIN TRY INSERT I What number should replace the ???????? with? nvarchar(4000) is that correct? I tried nvarchar(MAX) and nvarchar but both versions only input one character into my database table. Please help a newbie out, cheers!
View 2 Replies View RelatedI have a column name DateofRecord and it is nvarchar type..all the values in this column are like this
"04/24/2013'
"05/01/2014"...etc...
My requirement is to convert this column into Datetime ?
I tried so many ways using cast and convert functions like cast(dateofrecord,datetime) or like convert(datetime,replace(DateofRecord,'"','''')) ..it didnt worked..
Declare @specificDB nvarchar(max) = 'AdventureWorksDW2012'
,@tablename nvarchar(max) = 'DimAccount'
declare @localtab INT
SET @localtab = (SELECT Convert(INT,('select count(*) from ' + @specificDB+'.'+'INFORMATION_SCHEMA.Tables WHERE TABLE_TYPE = ''BASE TABLE'' AND Table_name = ' + @tablename)))
Print @localtab
Print @localtab
----
Msg 245, Level 16, State 1, Line 8
Conversion failed when converting the nvarchar value 'select count(*) from AdventureWorksDW2012.INFORMATION_SCHEMA.Tables WHERE TABLE_TYPE = 'BASE TABLE' AND Table_name = DimAccount' to data type int.
Hi
i want to split the numbers from the varchar field(accc0001).
i want 0001 only. at the same time select max of that number+1.
friends can u help me on this .
Hi,
I am updating a remote table using linked server in sql server 2005.
but in case of varchar and nvarchar i am getting an error :
"OLE DB provider "SQLNCLI" for linked server "LinkedServer1" returned message "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
Msg 16955, Level 16, State 2, Line 1
Could not create an acceptable cursor."
thanks in advance.
Thanks & Regards
Pintu
I know that if I have an nvarchar column I can use an equality like = N'supersqlstring' so it doesn't implicit cast as a varchar, like if I were to do ='supersqlstring'. And then I'll be a big SQL hero and all my stored procedures will run before a millisecond can whisper.
But if I'm comparing an nvarchar column to a varchar column, is it better to cast the varchar 'up' to an nvarchar or cast the nvarchar 'down' to a varchar?
For instance:
cast(a.varchar as nvarchar(100)) = an.nvarchar
or
cast(an.nvarchar as varchar(100)) = a.varchar
Leaving aside non-matching, like (at least I don't think) that SQL considers the varchar n to be equal to the nvarchar ń, what's the best way to handle this?
Pretend for a moment that each column contains a mixed letter and number ID with no accented or wiggly-squiggly Unicode characters; it's just designs clashing.
Is there a performance hitch doing it one way or another? Should I use COLLATE? Should one of the columns be altered?
I am trying to convert a column (nvarchar) to date time.
Here is an example of some values:
20110905
20110901
20111003
As expected, I received the following error: 'Conversion failed when converting date and/or time from character string.'
However, I am unsure how I should approach updating the whole column. I would like the format to be '103'.
I have an issue where I am storing various international characters in nvarchar columns, but need to branch the data at one point of processing so that ASCII characters are run through an additional cleansing process and all non-ASCII characters are set aside.
Is there a way to identify which nvarchar values are within the ASCII range and can be converted to varchar without corruption? Also, the strings may contain a mix of english and international character sets, so the entire string must be checked and not just the first character.
i.e.
Pass:
'Hello', 'abc123'
Fail:
'太平市', 'abc太123'
Hi,
As you can see, I'm totally new at Sql Server.
I have a problem, I store text into a nvarchar field (could be a 200 or 20,000 characters long string), inside the text there are several carriage returns which I would like to preserve to later presentation, but when retreiving the data from sql server I got the "cr" as "?", also I opened the database from Sql Managment and all cr's were saved as "?".
What can I do to preserve the cr inside each field ?
Thanks in advance.
I am trying to sort my sql resultset by an alphanumeric column of a table which is of NVARCHAR datatype. The sample data is given below:
CREATE TABLE #Activities(activityName NVARCHAR(100))
INSERT INTO #Activities VALUES('Field phase S14-04932-01')
INSERT INTO #Activities VALUES('Phase reporting')
INSERT INTO #Activities VALUES('Phase running')
INSERT INTO #Activities VALUES('RD1')
[Code] ....
The output of the query is like this:
A1
A2
A3
A4
E1 0DAA1
E10
E2 0DAA2
[Code] .....
The output what I require is this:
A1
A2
A3
A4
E1 0DAA1
E2 0DAA2
[Code] ....
how SQL 2012 would treat a literal string for a comparison similar to below. I want to ensure that the server isn't implicitly converting the value as it runs the SQL, so I'd rather change the data type in one of my tables, as unicode isn't required.
Declare @T Table (S varchar(2))
Declare @S nvarchar(255)
Insert into @T
Values ('AR'), ('AT'), ('AW')
Set @S = 'Auto Repairs'
Select *
from @T T
where case @S when 'Auto Repairs' then 'AR'
when 'Auto Target' then 'AT'
when 'Auto Wash' then 'AW' end = T.STo summarise
in the above would AR, AT and AW in the case statement be treated as a nvarchar, as that's the field the case is wrapped around, or would it be treated as a varchar, as that's what I'm comparing it to.
When I run the following sql query:
"update table set price = price * 1.1 "..
I get the following error : "Msg 8115, Level 16, State 8, Line 1.. Arithmetic overflow error converting nvarchar to data type numeric. The statement has been terminated."
The table is set to nvarchar, and i am just trying to make the prices go up 10%.
Hi, all
I'm getting this error at runtime when my page tries to populate a datagrid. Here's the relevant code.
First, the user selects his choice from a dropdownlist, populated with a sqldatasource control on the aspx side:<asp:SqlDataSource ID="sqlDataSourceCompany" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [PayrollCompanyID], [DisplayName] FROM [rsrc_PayrollCompany] ORDER BY [DisplayName]">
</asp:SqlDataSource>
And the dropdown list's code:<asp:DropDownList ID="ddlPayrollCompany" runat="server" AutoPostBack="True" DataSourceID="sqlDataSourcePayrollCompany"
DataTextField="DisplayName" DataValueField="PayrollCompanyID">
</asp:DropDownList>
Then, I use the selectedindexchanged event to bind the data to the datagrid. Here's that code:
1 Sub BindData()
2
3 Dim ds As New DataSet
4 Dim sda As SqlClient.SqlDataAdapter
5 Dim strSQL As String
6 Dim strCon As String
7
8 strSQL = "SELECT [SocialSecurityNumber], [Prefix], [FirstName], [LastName], [HireDate], [PayrollCostPercent], " & _
9 "[Phone], [BadgeNumber], [IsSupervisor], [SupervisorID], [IsUser], [IsScout] FROM [rsrc_Personnel] " & _
10 "WHERE ([PayrollCompanyID] = @PayrollCompanyID)"
11
12 strCon = "Data Source=DATASOURCE;Initial Catalog=DATABASE;User ID=USERID;Password=PASSWORD"
13
14 sda = New SqlClient.SqlDataAdapter(strSQL, strCon)
15
16 sda.SelectCommand.Parameters.Add(New SqlClient.SqlParameter("@PayrollCompanyID", Me.ddlPayrollCompany.SelectedItem.ToString()))
17
18 sda.Fill(ds, "rsrc_Personnel")
19
20 dgPersonnel.DataSource = ds.Tables("rsrc_Personnel")
21 dgPersonnel.DataBind()
22
23 End Sub
24
I'm assuming my problem lies in line 16 of the above code. I've tried SelectedItemIndex, SelectedItemValue too and get errors for those, as well.
What am I missing?
Thanks for anyone's help!
Cappela07
Hi All,
The storage reserverd for nvarchar(m) is 2*m+ 2 extra bytes.
I understood each character requires because it supports unicode format.
Why extra two bytes are required?
Regards
Abdul
Hello,
What is the maximum lenght when using nvarchar(MAX)?
If I want to save a really long text, should be this the data type to use?
I am using SQL 2005.
Thanks,
Miguel
Does anyone know the formula to calcuate the space occupied by an nvarchar(max) column for the purposes of sizing a table?
View 1 Replies View RelatedIs it bad form to use nvarchar(MAX) in place of column types with specific lengths like nvarchar(50)? Are there performance issues? Because to me (a novice), it appears that I would save space by using nvarchar(MAX) everywhere.
Same question applies to varbinary(MAX) as well.
Thanks
Jim
_______________
Jim Geurts
Personal: http://www.biasecurities.com
Work: http://propertycenteronline.com
I have an SSIS pkg, that gets data from Lotusnotes db and loads into SQL Server, using ODBC Driver for Notessql driver . I have a comments, field, in Lotusnotes which has comments>8000 chars in lotusnotes. Hence I created my destn SQL Table with datatype NVARCHAR(MAX) so that it can uplaod the comments that are >8000 chars.
However, every time I run the ssis pkg , the destn table is bringing only 250 chars ONLY in the comments field , and truncates the rest of the chars.
And I see the reason is because, on my ODBC Serttings for Lotusnotes, There is a section for NOTESSQL options
where the "Max length of text fields" set to 254. hence it brings only 254 chars into SQL.
However, If I increase that option "Max length of text fields" to 8000 or some higher number, the sssis package errors out on the datareader source itself, err is"
"The output column 'comments' has a length that is not valid.
Pl advise how can I load all the comments which are more than 8000 chars from lotus notes into SQL, AND KEEPING THE ODBC settings, the "Max length of text fields" TO 254 Only.
I have a scenario to sort on an nvarchar (50) field and I need to keep any changes to the sproc in the ORDER BY clause if possible. This field will contain strings such as...
abc-217c, abc-15a, abc-9a, abc-7b, abc-17ar, etc...
The issue I'm having is when the records are sorted, they are returned as...
abc-15a, abc-17ar, abc-217c, abc-7b, abc-9a,etc...ordering numerically on the first numeric character in the string ie, 1,1,2,7,9)
However, I need the numeric component to be treated as a whole number and order in this fashion...
abc-7b, abc-9a, abc-15a, abc-17ar, abc-217c (7,9,15,17,217, etc)
I feel pretty sure that this issue has come up before...can anybody provide a working example that would provide a simple(or not so simple) solution?
Hello, I have a column in my table that is a nvarchar.The information that we need to store in this column has exceeded the limit.Can we simply change the datatype to 'text' ? Will there be any issues that we might experience? Thank you in advance.
View 1 Replies View Relatedi have used nvarchar as my datatype in sql server 2000 now
i have decided to change to varchar as i can increase the character length from 4000 to 8000
Do I Lose data if i change the datatype.
I have a table using nvarchar(for what ever reason which beyond me why its a nvarchar...) that I would like to change to a varchar. There is no unicode in the fields so I don't have to worry about but I don't want to lose any text data. Will coverting the data type lose data?
Thanks
Hello all,
I'm trying to convert a nvarchar datatype to int
(ie:1234-56-78 to 12345678) . These values are primary keys in two tables. Both these tables have 3500 rows of this key type. I want to convert this to a int so I can make it a AutoNumber primary key so I can increment it. Is this possible? If so, how do I do it. Do I need to delete the dashes first some how? I fairly new to database adminstration, so any guidance will be greatly appreciated.
Thank You