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I am student and studying Dist. databse. I want these with some example....
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The only examples that I could find[^] are part of a presentation. It seems that osun.org[^] has some good information too, but I didn't dig in deep enough to judge whether it's what you're looking for.
Have you considered turning your research-results into a CodeProject-article? 
I are Troll 
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SQL Server 2008 has the new 3-byte DATE format that I would like to use, being as I don't need the extra overhead of storing TIME.
I used bcp to generate the following format file from my table definition:
"<?xml version="1.0"?>
<BCPFORMAT xmlns="http://schemas.microsoft.com/sqlserver/2004/bulkload/format" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<RECORD>
<FIELD ID="1" xsi:type="CharTerm" TERMINATOR="\t" MAX_LENGTH="10" COLLATION="SQL_Latin1_General_CP1_CI_AS"/>
<FIELD ID="2" xsi:type="CharTerm" TERMINATOR="\r\n" MAX_LENGTH="11"/>
</RECORD>
<ROW>
<COLUMN SOURCE="1" NAME="Symbol" xsi:type="SQLVARYCHAR"/>
<COLUMN SOURCE="2" NAME="myDate" xsi:type="SQLDATE"/>
</ROW>
</BCPFORMAT>"
xsi:type="SQLDATE" is used to define the transformation for the date in my ascii file to the DATE in the table.
A snippet from the input file is:
AAI 19940101
ACL 19981231
AKA 20091208
BULK INSERT interprets all of these dates to be 1900-01-01, which would be the default value I suppose.
But if I change my input file to:
AAI 1994-01-01
ACL 1998-12-31
AKA 2009-12-08
BULK INSERT inserts the correct date values into my table.
This is peculiar because if I define the table to be SMALLDATETIME instead of DATE and SQLDATETIM4 instead of SQLDATE, then either input file works OK.
It wouldn't be such a big issue for me except that I have thousands of files each with thousands of rows and converting them all before importing is going to be time consuming.
I think this is a bug in SS2008. I tried to report it to Microsoft, but to open a support ticket costs $99
1) Is there a free/simple way to report the bug to Microsoft
2) Is there an updated version of bcp.exe (I can't find one)
3) Is there a workaround that doesn't involve pre-formatting the input
Thanks
Steve
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Gawiz wrote: 1) Is there a free/simple way to report the bug to Microsoft
Microsoft Connect[^]?
Gawiz wrote: 3) Is there a workaround that doesn't involve pre-formatting the input
Converting the results, by importing into the SMALLDATETIME and SQLDATETIM4 types and ALTERing the columntype afterwards.
I are Troll
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I've written a program using C# that is supposed to access a database. When I try to actually open the connection, I get this exception:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
The database access code is contained in a separate assembly. This same assembly is used in another program (written in VB if that matters) that connects to the same database without any problems at all (on the same machine, with the same user logged in, and using the same connection string).
Why am I getting this exception in one program and not in another?
EDIT ===================
Here are the constructors for both apps:
VB: Dim myClass as new MyClass("abc", "def\geh")
C# MyClass myClass = new MyClass("abc", "def\geh");
The problem is that VB automatically escapes the backlslash, but c# requires @"def\geh"...
Stupid programmer tricks...
.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
modified on Tuesday, January 19, 2010 2:32 PM
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Maybe some strings not escaped correctly?
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The connection string is identical (it's created in the common assembly, and that was the very first thing I checked).
EDIT ===========
Why was this 1-voted?
modified on Wednesday, January 20, 2010 5:50 AM
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A shot in the dark; perhaps a firewall that's blocking one application, and not the other?
I are Troll
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I wrote both apps from scratch (neither existed before I got here), and as far as I know, there are no application-specific blocks on our internal firewall.
.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
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app.config?
app manifest?
elevation code missing/wrong?
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that. [The QA section does it automatically now, I hope we soon get it on regular forums as well]
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There is no app.config. There is no manifest (unless vb creates on automagically). There is no elevation code. Authorization is via Windows login
.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
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Out of curiosity, I created a manifest file, but the vb's version uses the defaults that the C# one does, so I don't think that's the issue.
.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
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Solved it (see original post for solution)
.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
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The only possibility is a bad connection string.
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That's what I thought but the connection string for both apps is the same. Solved it (see original post for solution)
.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001
modified on Tuesday, January 19, 2010 2:36 PM
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Hi all I am trying to consume a webservice using TSQL but I am getting a null result
The method URL is http://localhost/SSISWebservice/service1.asmx
The invoked url is http://localhost/SSISWebservice/service1.asmx/HelloWorld
I found two samples and used them on a local web service but both of them did not get result s or generated an error.
thanks
Mohammad Al Hoss
Development To Me Is A Pleasure more than a Job
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Are you using MSXML2.XMLHTTP and TSQL, or are you using a CLR-sproc to read the webservice?
If you're using the XMLHTTP variant, then you might want to check whether OLE-automation is enabled;
sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Ole Automation Procedures', 1;
GO
RECONFIGURE;
GO
Hope this helps
I are Troll
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I've encountered an unusual situation in an import program I wrote. From what I can determine, the root of the problem is that I read data from an Excel spreadsheet (through a data conversion component which changes all data types to DT_STR) into an unconstrained table (no FK's, all columns are varchar(255)). For some reason, on occasion currency values are imported with what I assume is their floating point representation. Confusingly, this doesn't appear to be consistent behaviour in a given file. e.g. 10098.73 -> 10098.73 but 8978.98 -> 8978.9799999999996.
In a second package, the data is imported into a correctly typed table (there's a few lookups etc done along the way too). The type of the currency column is numeric(15,2) but I don't seem to be able to catch the data truncation as it is reported as a data overflow instead and I don't want to ignore the error completely in case e.g. text has been entered instead of a number.
I'm assuming the easier way to go is to figure out why the numbers are occasionally stored as floating point in text - can anyone shed any light?
Failing that, I might just write a SPROC that will truncate the text automatically...!!
It definitely isn't definatley
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moon_stick wrote: I'm assuming the easier way to go is to figure out why the numbers are occasionally stored as floating point in text - can anyone shed any light?
Because $2 divided by three people equals something that's hard to store in binary. It results in 0.666666~, where the length of a byte is limited. A digital representation of a analogue value
Excell sometimes keeps the "calculated" values without rounding them. Those values are already imprecise, since you can't encode every fraction using a byte. It keeps the unrounded value around, and displays a value with the specified formatting: in this case, a currency with two positions after the decimal-separator.
It would be easier to test whether the data can be interpreted as a numeric, and if so, round it by two decimals. Keep in mind that you don't want to use these (formatted) numbers for further calculations; you'd want the original floats for that
I are Troll
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Greetings! My name is Christos and I come from greece, happy to mmet you all!
Anyways,
I should start describing my problem. We use an ERP program in conjuction with SQL server and lots of tables that keep track of product records customers and all these kinds of stuff. I am building a fairly simple Warehouse Inventory Application. I have created a custom Inventory table that I would populate with records like {stock_code, Description, Quantity_remain, quantity_avail}. Those records already exist in 2 different tables in my database. The aim is that I want my program to fetch daily 10 random codes from those 2 tables bringing together the "columns" that my new custom table has +2 more editable columns: inventory, date, user with a query like this:
select top 10 stck.code, stck.descr, stck.active, stck.group_code, stck.categ_code,
stck_x_th.xwr_code, stck_x_th.thesi_code, stck_x_th.quant_remain
from stck left outer join stck_x_th on stck.code = stck_x_th.stck_code
order by newid(),
I use the the stck table to fetch product info like its code,description,group_code,categ_code, and then I outer join the stck_x_th that contains records concerning quantities remaining or available asociated with each code and "places" those quantities reside.
(those exact same columns are the ones my custom inventory table has)
store them in a datagridview control, with only one editable column -inventory-, and then when the user fills out the inventory quantites, I want to save the datagrid "as it is" in my new custom table.
I am creating a databound gridview control using one table adapter (which refers to the inventory table). Then I populate my table adapter using the forementioned query with a fillby method to populate the Datagrid (and therefore my Table in SQL) with the exact same values my query returned from the different tables. But whenever I try to update the table concurrency exceptions raise.
It works like a charm if I enter the values in the grid cells manually my self but not if I populate the grid via a query and then hit update. Any suggestions please?
I would appreciate it if you could bother posting some sample code.
Thanks in Advance
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So if I understand this correctly you are querying the database, populating the datagridview and wanting to rely on the datagridviews update command to put the data back into the database.
This is probably the ultimate corruption of a concept that I have ever seen, when MS supplied the DGV with command methods to do the CRUD work it is designed for retail work (it is a great disservice to the developers as this type of thing happens). What you are doing should be done totally in the database, it should be performed by a stored procedure and never have anything to do with the UI.
You need to look into stored procedures and TSQL, data warehousing is always done on the server side.
Never underestimate the power of human stupidity
RAH
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Hi guys, I know strictly speaking this is not a database question, but since this has to do with massive data manipulation, and that from past experiences I know there are some really intelligent and creative people here, hopefully bouncing some ideas here could shed some light on a possible solution. 
Conceptually, I need to compare the pattern of object A, B, C, D, E, F. Each object has 5 attributes (a, b, c, d, e), the value of which can range from 0 to 9.
Object A B C D E F
a 6 9 1 9 9 3
b 8 3 5 1 1 3
c 7 0 8 3 5 8
d 7 5 6 5 5 2
e 8 9 2 2 8 0
The goal is to find out which objects have the highest match of attribute values. For example, in the above table, D & E have 3 matches, B & D have 2 matches, C & D have 1 match...etc.
Of course a simple loop comparing each object's pattern to another would suffice if there's only 6 objects and 5 attributes like the above. But my eventual goal is to categorize some 10000 objects with 20 attributes. 
For some reason I thought there must be an elegant solution to this, possibly involving some ingenious/creative data sorting using arrays. But again I've been in programming long enough to know simple concepts sometimes require unbelievably complex programmming.
I'd greatly appreciate any suggestions or ideas. Many thanks again. 
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E has either 2 or 4 matches, otherwise I have missed your logic.
Are you counting each col that matches eg A has 1 match with 3 cols, is it one or 3.
Do the values of the match impact on your requirement (3x9 is worth more than 3x5) or (4x2 < 2x5)
I can think of a few way, all simple and reiterative so I'll not waste your time.
Never underestimate the power of human stupidity
RAH
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seems to me he is comparing each possible pair of two columns, so for N columns, that's N*(N-1)/2 column comparions, where identical field values constitute a match. And he is contemplating N=1000 
and it looks like a huge job, possibly not a good approach to reach whatever the higher goal might be.
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Thank you Holmes for the reply.
In essence I am trying to compare one column's pattern against each other, so if column A and column B have three attriutes that are the same, then that's 3 matches for that pair.
Luc is right in saying there'll be n(n+1)/2 comparisons, given n columns. Given roughly 10000 columns, that's about roughly 50 million comparisons. However, that is assuming that during each comparison loop you can only compare 1 versus 1 at a time. Now I am trying to figure out whether there's an ingenious way to solve this problem efficiently (1 hour of process time is okay by me).
Ultimately, the purpose of this exercise is to write a code that can categorize various random patterns into groups. So for example, after this is done, you can observe and say, "Group 1 has higher attribute a, lower attribute b, lower attribute c", and "Group 2 has below average attrite a, but very high attribute d"...etc. 
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