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Hey no problems. Beleive it or not you helped me with the most crucial part which was showing the joined tables in a datagrid. I spent all day the other day trying all these complex methods retrieved from my google searches when you were right all along in saying that i was trying to mix the way the data is displayed from what was retrieved.
Your 5 lines of code has saved me from what would have surely been a day of frustration and hair tearing. 
With the 5 lines of code I was able to make good progress on the GUI today with the datagrid. Tommorrow i will get on to formatting the fields. There are some time fields as well which i didn't mentioned that have appeared in an erroneous date format and i'll need to reformat them back to display time.
And thanks for the suggestion on the book  Its been a steep learning curve the last three months and i'm always on the look out on how i can learn the basics and the foundation knowledge. I have the book "How to program in VB.NET" by Dietel and Dietel. I tried to cram the whole book from cover to cover but could only get to chapter 8. Its a pretty huge and detailed book and really tough going as you get further into the book. But it was enough to give me my jump start.
Once again thank you for taking the time to respond to my question which is much appreciated. 
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I have a project in which I am having to reverse engineer a product that uses an Access database. The application inserts records with an ID such as A000001. Each time a new record is added, this is incremented by one according to some alogorithm. Here's how it gets incremented:
A000001...A000009
A00000A...A00000Z
A00000a...A00000z
First of all, this scheme is wacked out. I've never seen such a thing before (Obfuscation maybe?). As far as I can tell, they have made it so that this identity column allows duplicates. This would have to be the case since you get both A00000A and A00000a as separate records. Text fields in Access don't account for case-sensitivity. So my question is, when I have to do a join on this column with a column in another table, how can I do it so that the strings are compared using case? Is this possible? When you have the clause 'Table1 INNER JOIN Table2 ON Table1.ItemID = Table2.ItemID' in a select statement, Access sees it as equal even when the strings are A00000A and A00000a respectively. Any ideas?
Thanks for your help.
-Matt
------------------------------------------
The 3 great virtues of a programmer:
Laziness, Impatience, and Hubris.
--Larry Wall
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Hi, all:
I am using Datagrid control in my WinForm application. I have two questions regarding the usage of the datagrid control.
1. In MS Access Database, you can specify a column "Lookup" to another table for available values ( show up as List when clicked on the cell ). Can I do the same thing in Datagrid control?
2. I'd like the user to update the data in the datagrid, but not add a new row. I will programatically add new rows through Dataset. Is this possible?
Thanks for your help in advance.
Dion
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1. In MS Access Database, you can specify a column "Lookup" to another table for available values ( show up as List when clicked on the cell ). Can I do the same thing in Datagrid control?
1. You can do this, but it's not automatic. You have to use a template column with a dropdownlist that has been populated with the lookup values. See answer to number 2 below. The O'Reilly book I mention shows how to do this as well.
2. I'd like the user to update the data in the datagrid, but not add a new row. I will programatically add new rows through Dataset. Is this possible?
2. This is possible. There's a good tutorial on how to do in-place editing in the "Programming ASP .NET" book from O'Reilly & Associates. You can get the source code from here. Once you've downloaded the source zip file, look at the filss ex-13-06, ex-13-07, and ex-13-08. You'll have to change the names and such to see it work, but the code is there and is complete. I've tested it myself. Meanwhile, you may want to just go pick up the Programming ASP .NET book. It'll be money well spent.
-Matt
------------------------------------------
The 3 great virtues of a programmer:
Laziness, Impatience, and Hubris.
--Larry Wall
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Hi,
In our office we have a network of 3 computers. We have a db issue where we nee to access a single db on one of the 3 computers. Which would be the best solution:
1) Implementing SQL Server on the PC with the db
2) Writing an app to cache the db data and hand it over to clients that requests it (reads and writes)
3) Connecting to the db directly through the network connection
For interest the db we are using in Access.
Any information would be greatly apprecated.
Regards,
Rich
"Programming today is a race between software engineers striving to build bigger and better idiot-proff programs, and the Universe trying to produce bigger and better idiots. So far the Universe is winning." -- Rich Cook
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Connecting to the db directly through the network connection
i think this is the best one
3 clients don't need SQL server , and you can directly access the MS Access db from the clients.
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Hiya am getting a syntax error on using CREATE TABLE in SQL and an Access database:
// open the database
database.Open( NULL,false,false,sDsn );
database.ExecuteSQL("CREATE TABLE OFFICES (OfficeID TEXT(4) OfficeName TEXT(10) ) ");
Does anyone know what is wrong with the ExecuteSQL line..
Thanks
grahamoj.
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Hiya again, I found out my problem. Missing comma i.e
database.ExecuteSQL("CREATE TABLE OFFICES (OfficeID TEXT(4),OfficeName TEXT(10) ) ");
So now what I need to be able to do is make the text field 600 chars. So tried these:
database.ExecuteSQL("CREATE TABLE OFFICES (OfficeID TEXT(4) OfficeName TEXT(600) ) ");
and
database.ExecuteSQL("CREATE TABLE OFFICES (OfficeID TEXT(4) OfficeName MEMO(600) ) ");
but it won't create the table because text fields are too long..
any ideas on how to do this??
grahamoj.
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For SQL-Server the maximum length for TEXT is 2,147,483,647 (and even VARCHAR can store up to 8000 characters), so I don't think 600 should be the problem. Maybe it's just the missing comma again?
--edit--
BTW: For 600 characters you shouldn't use TEXT but VARCHAR because of better performance. TEXT is designed for storing large textfiles, so in the table there is only stored a pointer to the actual data.
--edit--
--
karl
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grahamoj wrote:
database.ExecuteSQL("CREATE TABLE OFFICES (OfficeID TEXT(4) OfficeName MEMO(600) ) ");
Don't specify a length for a memo, i.e. use:
database.ExecuteSQL("CREATE TABLE OFFICES (OfficeID TEXT(4), OfficeName MEMO ) ");
Dave.
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I have a SELECT statement written for Oracle which I need to convert to work on Access, SQL, and Oracle. Could some kind soul please let me know what the SQLCommand would be to convert from:
SELECT Description,<br />
Decode(KQues, 'Y', NULL, To_Char(Add_Months(Warning_Deadline, 12*(Period_ID - 7)),'dd/mm/yyyy')),<br />
Decode(KQues, 'Y', NULL, To_Char(Add_Months(Statutory_Deadline, 12* (Period_ID - 7)),'dd/mm/yyyy')),<br />
Claim_Made,<br />
To_Char(Date_Claim_Made,'dd/mm/yyyy'),<br />
Signed_Off_By,<br />
KQues,<br />
Parent_ID<br />
FROM<br />
Client_Claims,<br />
Standard_Claims<br />
WHERE<br />
Client_ID = n AND<br />
Standard_Claims.Claim_ID = Client_Claims.Claim_ID
You will be doing me a big favour in converting this.
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this should work for MSSQL
SELECT Description,
Case KQues
When 'Y' Then Null
Else Convert(Varchar(12),AddDate(month,12*(Period_ID - 7),Warning_Deadline),113)
End,
Case KQues
When 'Y' Then Null
Else Convert(Varchar(12),AddDate(month,12*(Period_ID - 7),Statutory_Deadline),113)
End,
Claim_Made,
Convert(Varchar(12),Date_Claim_Made,113)
Signed_Off_By,
KQues,
Parent_ID
FROM Client_Claims,
Standard_Claims
WHERE Client_ID = n
AND Standard_Claims.Claim_ID = Client_Claims.Claim_ID
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I will give it a go. Cheers 
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Hiya I am writing a program with SQL and an Access Database. I need to set the lenght of the text field (a column) to 600. Can I do this from my program??
I have tried setting it in the database in the design view but it will only allow a maximum of 255 chars. But it would be better to be able to set it from the program.
I am using CDatabase and CRecordset and its an ODBC database..
Thanks
grahamoj.
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In access, create the field as a memo with no length e.g.
create table blah<br />
(<br />
field1 memo<br />
)
Dave.
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Does anyone know of a product that will create XML bassed documentation for a SQL database like you can get with C# or by using NDoc?
Paul Watson wrote:
"At the end of the day it is what you produce that counts, not how many doctorates you have on the wall."
George Carlin wrote:
"Don't sweat the petty things, and don't pet the sweaty things."
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I have problem with MS SQL Server during installation
firstly there was no problem with Standard Edition, then I uninstalled that and tried to install Enterprise Edition
and faced the following problem:
at the end of the installation the following message appears "... refer to sqlstd.log file"
now I have the same problem with Standard Edition
(I tried to install SQL Server on another computer, the same problem)
thanx.
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ok .. can you tell us what is written in the log file..
it may explain the problem..
also what OS do you use ?
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Hi, All:
I am writing my FIRST Windows Form Application in .NET to edit my MS Access database. In this Access DB, I have a table with two columns: EquipmentID and EquipmentDescription. Some other tables use the ID to refer the equipment. This application supports multiple users at the same time. That mean that it could be more than one user add new equipmment. I use in-memory DataSet to get user's input and then call Insert/Delete/Update methods. I am debating that whether I should use Access AutoNumber for the ID field, or I should just use DataReader to get the Max ID used, then Add 1 to create my new ID. The AutoNumber makes things simpler, but if I try to merge to DB later, I will have a lot of headaches. If I assign my own ID, I might have conflict with other users and fail the INSERT.
So what is the typical way to achieve this, I know a lot of people have done this, please give me some ideas. Thanks in advance.
Dion
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If you use a GUID (Globally Unique Identifier) as the ID, you should have something that can be ported to any platform as well as solve your Identity problems. I have previously used a VB6 function that produced GUID's, and am sure you should find one for .Net.
Regards
Peet Schultz
Centurion SA
YASP
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There're was an article on MSDN covering this issue, but I cannot find it.
What it suggests is to configure your EquipmentID to use negative autoincrement values:
<br />
ds.Tables["Equipment"].Columns["EquipmentID"].AutoIncrementSeed = -1;<br />
ds.Tables["Equipment"].Columns["EquipmentID"].AutoIncrementStep = -1;<br />
...and to modify your insert SP (or insert code if you use Access) to return the newly created identity value. SP would look like this:
<br />
CREATE PROCEDURE dbo.daInsertEquipment<br />
(<br />
@EquipmentID int OUT,<br />
@EquipmentDescription nvarchar(200)<br />
)<br />
AS<br />
INSERT INTO Equipment<br />
(EquipmentID, EquipmentDescription)<br />
VALUES (@EquipmentID, @EquipmentDescription) <br />
<br />
SET @id = SCOPE_IDENTITY()<br />
HTH
Alexandre Kojevnikov
MCP (SQL2K)
Leuven, Belgium
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How to backup StoreProcedure, View, database... in Oracle.
Help me please!!!
Thank you.
***Hung***
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Oracle has a myriad of ways to backup the database. I suggest you check out the Backup & REcovery Concepts guide for details on all of them.
Unfortunately there is no wasy way for me to tell you how to do this without knowing your environment in detail. Basically your options are: Export, Traditional cold backup, and backup using recovery manager (or EBU if you're on 7.X). The export is the simplest but not real efficient and can be costly in resources. Traditional works fine, but requires downtime and is also costly in resources. Rman is relatively efficient, but fairly complex to use and setup.
If yo need a quick backup, most dbas use export when in a pinch if there aren't any other options.
Mark Conger
Sonork:100.28396
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