Sqlserver LOB !!!
Jan 17, 2008
Good day ...
I need to know how to make a LOB column in sqlserver...
In table creation I definde the column that will receive the binary data as nvarchar(MAX)
the problem now that whenever I try to read it back I get this error
Unable to cast object of type 'System.String' to type 'System.Byte[]'.
and when I define the column as varbinary(MAX) it cant real handle large objects
I have a method that will return a DataTable Here's the code that I use to write
DataTable dt = fm.getFileData(fileID);
Response.ContentType = dt.Rows[0][4].ToString();
Response.BinaryWrite((byte[])dt.Rows[0][2]);
Thanks in advance ...
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May 10, 2007
We have a static class that makes an HTTPWebRequest to get XML data from one of our vendors. We use this as input to a stored proc in SQLServer2005. When I compile this class and call it from a console application in visual studio it executes in milliseconds, everytime. When I compile it, create the assembly and clr function and execute it in SQLServer, it takes around 14 seconds to execute the first time, then on subsequent requests it is again really fast, until I wait for 10 seconds and re-execute, once again it is slow the first time and then fast on subsequent requests. We do not see this behavior when executing outside SQLServer. Makes me think that some sort of authentication is perhaps taking place the first time the function is run in SQLServer? I have no idea how to debug this further. Anyone seen this before or have any ideas?
Here is the class:
Code Snippet
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;
namespace Predict.Services
{
public static class Foo
{
public static string GetIntradayQuote(string symbol)
{
string returnQuote = "";
HttpWebRequest request = (HttpWebRequest)(WebRequest.Create("http://data.predict.com/predictws/detailed_quote.html?syms=" + symbol + "&fields=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,28,30"));
request.Timeout = 1000;
HttpWebResponse response = (HttpWebResponse)(request.GetResponse());
StreamReader streamReader = new StreamReader(response.GetResponseStream());
returnQuote = streamReader.ReadToEnd();
streamReader.Close();
response.Close();
return returnQuote;
}
}
}
When I run call it from a console app it is fine.
I compile it into a dll and then create the assembly and function as follows:
Code Snippet
drop function fnTestGetIntradayQuoteXML_SJS
go
drop assembly TestGetIntradayQuoteXML_SJS
go
create ASSEMBLY TestGetIntradayQuoteXML_SJS from 'c:DataBackupsCLRLibrariesTestGetIntradayQuote_SJS.dll' WITH PERMISSION_SET = EXTERNAL_ACCESS
go
CREATE FUNCTION fnTestGetIntradayQuoteXML_SJS(@SymbolList nvarchar(max)) RETURNS nvarchar(max) AS EXTERNAL NAME TestGetIntradayQuoteXML_SJS.[Predict.Services.Foo].GetIntraDayQuote
go
declare @testing nvarchar(max)
set @testing = dbo.fnTestGetIntradayQuoteXML_SJS('goog')
print @testing
When I execute the function as above, again, really slow the first time, then fast on subsequent calls. Could there be something wrong with the code, or some headers that need to be set differently to operate from the CLR in SQLServer?
Regards,
Skipper.
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Hi experts;
I have a problem with unicode character 0x2300
I created this table
create table testunicode (Bez nchar(128))
Insert Data
insert into testunicode (Bez)values('Œ€„¢')
with 2 Unicode characters
Œ€ = 0x2300
„¢ = 0x2122
Selecting the data
select Bez from testunicode
I see
"?„¢"
„¢ = 0x2122 is ok but instead of 0x2300 there is 0x3f
When I modify the insert statement like that ( 8960 = 0x2300 )
insert into testunicode (Bez)values(NCHAR(8960)+'„¢')
and select again voila i see
"Œ€„¢"
Does anyone have an idea?
Thanks
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Thanks!!
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Hello people.
I am in the process of planning a server upgrade to sql2005 x64.
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Msg 7311, Level 16, State 2, Line 1
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http://support.microsoft.com/default.aspx?scid=kb;en-us;906954
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Hello Expert!
I have 2 Database €“ Access & SQLServer(ver 7)
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TblParameter
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TIA
Regards,
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Hi,
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Invalid object name 'sys.objects'.
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Any help would be appreciated.
Thanks in advance.
Any help
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HI FRIENDS MAY U HELP ME TO SLOVE THIS ISSUE
MY TABLES ARE COR_FIELD AND ADTL_INFO
IN COR_FIELD I HAVE
FIELD_ID FIELD_LABEL
109 GLAZE
120 FINISH
130 DRAWER
AND IN TABLE ADTL_INFO FIELDS ARE
SALES_ORDER_ID FIELD_ID FIELD_VALUE
1 109 NULL
1 120 MAHESH
1 130 RAJESH
2 109 MINNU
2 120 SRINIVAS
2 130 SHIVA
THE QUESTION IS HOW TO SELECT INDIVIDUAL FIELD VALUE FOR ONE PARTICULAR SALES_ORDER
mahi
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in this case joindate having 2-2-2202 09:30:01.000 is not coming
why is it like this
what is need to add to get 2-2-2202 09:30:01.000 in between
With Regards
Amjath
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;WITH cte
AS
(
SELECT
Symbol,
(((DATEPART(hour, CAST([Time] AS DATETIME)) * 60) + (DATEPART(minute, CAST([Time] AS DATETIME)) / 5) * 5)) AS [Time],
Price,
ROW_NUMBER() OVER(PARTITION BY (((DATEPART(hour, CAST([Time] AS DATETIME)) * 60) + (DATEPART(minute, CAST([Time] AS DATETIME)) / 5) * 5)) ORDER BY CAST(Time AS DATETIME) ASC) AS rn_1,
ROW_NUMBER() OVER(PARTITION BY (((DATEPART(hour, CAST([Time] AS DATETIME)) * 60) + (DATEPART(minute, CAST([Time] AS DATETIME)) / 5) * 5)) ORDER BY CAST(Time AS DATETIME) DESC) AS rn_2
FROM
dbo.TimeSales
WHERE
Symbol='MSFT' -- AND [Date] = '20080325'
)
SELECT
Symbol,
LTRIM([Time] / 60) + ':' + LTRIM([Time] % 60) AS [Time],
MAX(CASE WHEN rn_1 = 1 THEN Price ELSE NULL END) AS [Open],
MAX(Price) AS High,
MIN(Price) AS Low,
MAX(CASE WHEN rn_2 = 1 THEN Price ELSE NULL END) AS [Close]
FROM
cte
GROUP BY
Symbol,
[Time]
ORDER BY
[Time];
GO
---------------------------------------------------------------------------------
This is the query which dispalys the data minute wise time from second by second data.
I want to store this query like WITH SSS.
Is this possible to create
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