Understanding @@ERROR ....

Nov 3, 2004

My question is in what situations @@ERROR will be set...

I like to do some logic when some error is occured in a particular statement....

the doc. says the @@ERROR value will be set if an error occurs in a statement, and the control will move to the next statement without exiting(???) the procedure and @@ERROR value can be used in that statement.

but when i execute the below procedure, the execution is terminated ( when the error occurs) without moving to the next statement. please help me to understand the SQL Server's @@ERROR and the situations when it will be set....

-----------------------------------------------------------------------
CREATE PROCEDURE VALUE_ERROR_TEST
AS
BEGIN
DECLARE @adv_error INT
DECLARE @errno INT
DECLARE @var int
SELECT @var = '101 a'
SELECT @errno = @@ERROR
print @errno
END
go
-----------------------------------------------------------------------
procedure get successfully compiled. when executed it says,

Server: Msg 245, Level 16, State 1, Procedure VALUE_ERROR_TEST, Line 10
Syntax error converting the varchar value '101 a' to a column of data type int.


Jake

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Feb 26, 2006

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BEGIN TRAN TR_DEMO;

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GO

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I have tried using the linked report with CreateLinkedReport(...) but I do not understand the output.

initially I have a report with parameter that user needs to specified before generating . I use something like

CreateLinkedReport("test4", "/Report Server",

"/Report Server/xxx/yyy", props)

where "/Report Server/xxx/yyy", is the linked path to that file.

What happen is that this report 'template' has changed to a 'linked' report with specified parameters. and that new linked report 'test4" is created under /Report Server. And this test4 is like a copy of the orginal "/Report Server/xxx/yyy".

What I want is the opposite where the orginal template stays the same. And the new created test4 is the report that stores the specified values.

Regards

Alu

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Understanding Full Text Search.....

Sep 15, 2006

Hi All,I am trying to understand how FTS works and decide whether it is the way to go.The scenario:Site users will upload CV's in word format. these then have to be searchable via an asp.net page.therefore i need to store the contents of the word file in a database (looking like SQL2000 at the moment)These will be stored in BLOB Image/Binary typeI have to be able to search for text on these BLOBs and as i understand it the only way to do this is with FTS - or am i wrong and you can search with conventional select statements direct from the BLOB?If FTS is the only way to do this i need to know the sort of time involved with buliding the index/catalogue. Lets say i have 100mb of data that is being catalogued & indexed ready for FTS - in your experience, how long would this take to index? can the index be 'added' to withouth indexing everying? ie will SQL Server just index the changes that have taken place?I really am struggling to find this information, even across MSDN - i know i wont be able to find difinitive answers, but a rough guide on how long an index takes to build is important. I dont really want to have to tell the client "End users can upload their CV's but they can't be searched against for at least X hours" thanks in advanceRegardsDarren  

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A Little Trouble Understanding About Primary Keys

Mar 24, 2006

Hi,
I have a couple of questions regarding primary keys, and whether I really need one or not.
Right now, I am using a GridView control to display all the data in my Access database, but am using a SqlDataSource control to do it. Everything works fine, and I am also using the GridView to Edit/Delete records, and I am using a DetailsView control to insert new records into the database.
The questions I have are these:
1) What I have right now in the database is a value called ID, which is just an autonumber, which has the order of the database, but I would like to change it so that the database sorts by the date awarded, which is a field in the database called "mdate", and make it so that when an admin enters a new date, it sorts automatically by date. Because of that, I am not really sure if I need to have the ID value at all.
I dont understand if it will be of any use, if I want all the values to show up by date, starting from 2006 back. If anyone can explain, or tell me if I am thinking correctly?
2) Also, right now in the database, the clients who started the database inserted the values in the "mdate" field as "Awarded mm/dd/year" instead of just "mm/dd/year".
How could I write a function to go through each record in the "mdate" column, delete the word "Awarded " and then convert it into a datetime object, so I could sort it by date? Is it possible, or would I have to do it manually?
Here is the code I have now:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DetailsView ID="DetailsView1" runat="server" AllowPaging="True" DataSourceID="myDataSource1"
Height="50px" Width="300px" OnPageIndexChanging="DetailsView1_PageIndexChanging" Font-Names="Arial" Font-Size="Smaller">
<Fields>
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" ShowInsertButton="True" />
</Fields>
</asp:DetailsView>
<br />
&nbsp;</div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" Font-Names="Verdana" AutoGenerateEditButton="True" AutoGenerateDeleteButton="true" DataSourceID="myDataSource1" DataKeyNames="ID">
<Columns>
<asp:BoundField HeaderText = "ID" DataField="ID" ReadOnly="true" Visible="false" />
<asp:BoundField HeaderText = "Name" DataField="name" />
<asp:BoundField HeaderText = "Department Retired From" DataField="dept" />
<asp:BoundField HeaderText = "Current State Of Residence" DataField="state" />
<asp:BoundField HeaderText = "Purpose Of Award" DataField="award" />
<asp:BoundField HeaderText = "Date Awarded" DataField="mdate" />
</Columns>
<RowStyle Font-Size="Smaller" Height="50px" HorizontalAlign="Center" />
</asp:GridView>
<asp:SqlDataSource ID="myDataSource1" runat="server" SelectCommand = "SELECT * from [finawards]" ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=|DataDirectory|finawards_new.mdb" ProviderName="System.Data.OleDb" UpdateCommand = "UPDATE [finawards] SET [name] = @name, [dept] = @dept, [state] = @state, [award] = @award, [mdate] = @mdate WHERE [ID] = @ID" DeleteCommand = "DELETE FROM finawards WHERE [ID] = @ID" InsertCommand = "INSERT INTO finawards (name, dept, state, award, mdate) VALUES (@name, @dept, @state, @award, @mdate)"></asp:SqlDataSource>
&nbsp;
</form>
</body>
</html>
Thanks,
 
 

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Aug 4, 2005

I've been using databases for twenty years now and have just started using SQL Server 2000. I've used dbase III+, FoxPro and FileMaker Pro mostly and have a pretty good generally knowledge of databases. However, I'm constantly scratching my head over a few SQL Server foundational issues and would appreciate some help.

Probably the biggest question is this:
In FileMaker Pro (and FoxPro if I remember correctly), I would set the relationship once and then never have to think about it much again. Then I could create virtual tables and sub forms which contained data from several tables and view/update them with ease. However, in SQL Server I've noticed that while I can define the relationships in a database diagram, every query has to recreate the joines. If I try to use a view I can only update one table at a time which seesm whacky to me. So what on earth is the point of having relationships if you have to redefine them with each query? I've read that referrential integrity is the reason but that only baffles me further as I don't understand the point. Sure I get cascading deletes but there has to be more to the feature than that.

Also, when I want to insert data in multiple related tables I'm used to utilizing the existing relationship, mentioning the primary key once and then simply filling in the data. It seems in SQL Server that I have to also insert on the foreign key. This doesn't make sense as the database should know which record I'm talking about in the foreign key table(s) as they're related. Again though, I'm not only recreating the relationship in the insert but I'm also having to specify the foreign key. I guess it just makes me wonder why it's not simply checking the relationships which already exist.

So I'm a bit baffled and any help would be most appreciated.

Thanks in advance!

Kelly

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