hi, If I have a table which contains customer names. I want to have some kind of process to validate any new insert record into the customer table. so if the inserted new customer already exist in the table I will get a message that say " Sorry , this customer name is already in the system " .... how can I do that,
I am using sql server 2000. thanks
Ali
hi I have a table I need to have a process which prevent a user from entering a name value( company Name ) in a field. how can I do that .
Ahmed
Ok, this is a really stupid question, but I can't seem to find an answer I understand. In my SQL database I have a a table called MasterSkillList, to which the user can write by using a little web form with a text box and a drop down list. The table has 2 fields, Skill and Attribute. Skill is the primary key, as no skill can appear twice. What I want to do is prevent just that, I don't want people to enter the same skill more than once. So how do I tell the user that the entry allready exists in the database?
My C# Code is as follows:1 protected void btnSubmit_Click(object sender, EventArgs e)
2 {
3 srcAddSkill.InsertParameters["Skill"].DefaultValue = txtSkillName.Text;
4 srcAddSkill.InsertParameters["Attribute"].DefaultValue = ddlAbility.SelectedValue;
5 try
6 {
7 srcAddSkill.Insert();
8 lblErrorMessage.Text = "The skill '" + txtSkillName.Text + "' has been added. It is based on a character's " + ddlAbility.SelectedItem + " score.";
9 lblErrorMessage.Visible = true;
10 txtSkillName.Text = "";
11 }
12 catch (Exception ex)
13 {
14 lblErrorMessage.Text = "An exception has occurred. " + ex.Message;
15 lblErrorMessage.Visible = true;
16 }
how to prevent the insertion of the same entry of an unique value into the database?
assume that I have a primary key username " abc" in the database
and then I insert the "abc" again ,the debuggging error msg pops out saying the primary key cannot be duplicated..
how can I do an if--else statement to check the database against this unintentional inputs of the same unique data " abc"???
I have a column defined as smalldatetime. Default length (4), and "allow NULLS" is checked.In the Enterprise Manager UI, when i enter data into that table row, if i just tab past that column, all is well, and the value is represented in the UI as <NULL>.The problem comes once i ever enter a date into that column. Say i have entered a date (all is well), and now i want to remove that entry and go back to NULL (after the date value has been committed, different entry session, say).How is that done?It seems to me, once a date has ever been entered into that column, now, if i try to remove it, i get the error "The value you entered is not consistant with the data type or length of the column, or over grid buffer limit". I have tried deleting the value, entering spaces, entering the string NULL or the string <NULL>; maybe some other tries as well, but none works, i always get that error message and am not allowed to proceed past that cell until i restore a date value to it. I want to get back to <NULL>.Anybody know?Thank you.Tom
View 1 Replies View RelatedTask:
To insert entries into a table. The table has a primary key based on a field 'ID'. When inserting into the destination table, I want to make sure that the new entry will overwrite the old entry.
What's the quickest/cleaniest way to do this ?
thanks,
Clayton
While i execute the below query ,Entry is put in status_report table.But the same if i put in scheduling (Sql Agent) no entry is made in the table and the message success is shown in "Agent Job Activity".
Purpose of the sp is to transfer data from One Server to Another Server.
But if see in the Destination Tables No entry is made.
CREATE procedure RBI_Control_sp
as
begin
set nocount on
begin try
BEGIN TRANSACTION
insert into fin_wh..Status_report
(
[object_name],
row,
st_date
)
select
'Data Tranfer',
'Inprogress--',
getdate()
--Data Transfer From the Live Server [RamcoFin02(scmdb)] to Dw-Server[Ramcovm392(fin_ods)]
exec fin_ods..RBI_Data_Transfer_sp
--temp table Table population,Fetching data from the fin_ods[erp Table]
exec FIN_wh..RBI_SPExecution_sp
Update fin_wh..Status_report
set row= 'Success',
[error_message] = 'No Error',
end_date= getdate()
where row= 'Inprogress--'
COMMIT TRANSACTION
end try
begin catch
ROLLBACK TRANSACTION
Update fin_wh..Status_report
set row= 'Failure',
end_date= getdate(),
[error_message]= cast(error_number() as varchar) + '***' + error_message()
where row= 'Inprogress--'
end catch
set nocount off
end
Txs in advance
Not sure if this is the right place to post this but hopefully someone can help me. I would like to determine what the last automatically incremented ID is in a table I need to return it as a variable to a VB.NET program but I'm not sure what the SELECT statement would look like for this. Any help would be greatly appreciated.
View 4 Replies View RelatedI have an ASP.Net Web appplication with a Back-End SQL DB. There are 3 Tables; Users, Groups, and GroupMember.
The GroupMember table is used to link Users to Groups and consists of just two fields; userID and GroupID.
Here is a sample of some data:
User1 Group1
User1 Group2
User2 Group2
User3 Group1
User3 Group3
Users can belong to multiple Groups. However, you shouldn't be able to have the same user and group comobination more than once. for example:
User1 Group1
User2 Group2
User1 Group1
I can stop this kind of duplicate data entry by doing a lookup first (using asp.net) to see if the entry already exists but this seems cumbersome.
Is there a simpler way to prevent duplicate entries in a table using sql?
Thanks a lot,
Chris
hi..
How do i prevent other users from changing the data of my tables? Means one can change data using only my login rest others cannot even DBA or also from server administrator
is there a way when making a stored procedure if i can enter the information in multiple tables?? say the primary key into another table to link the relationship? or should i just pull it out and then put in?
View 1 Replies View RelatedHi,i am using SQL server 2005 and have a table with 4 columns.Column1 is primary key,col2 is foreign key and col3 and col4 are regular data column.When the user enters the data i want to make sure that for a given foreign key(col2),entries in col3 are not duplicated.Is there a way,i can make sure this at db level,using some kind of constraints or something?Thanks a bunch..
View 10 Replies View RelatedWe have a SQL Server 6.5 table, with composite Primary Key, having the Duplicate Entry for the Key. I wonder how it got entered there? Now when we are trying to import this table to SQL2K, it's failing with Duplicate row error. Any Help?
View 4 Replies View Related
In a situation where messages are coming in faster than they can be processed, at what point will service broker start up another queue_reader? Also, how do you prevent table locking if part of the processing of that message involves inserting or updating data in a table? We are experiencing this problem because of the high number of messages coming through, and I'm not sure what the best solution is - does service broker have some built-in support for preventing contention on a table when multiple readers are running? Or maybe a pattern that can be used to get around it?
Empid 1 has 2 entries for the date 09/01/2015 and my left join returns both of those entries. Â What do I need to alter to make it so that only the most recent entry is returned not both entries?
Create Table #one
(
empid varchar(100)
,empbadgeid varchar(100)
,emplunchtime decimal(18,4)
,empbreaktime decimal(18,4)
,empworktime decimal(18,4)
[code]....
I need to discover the actual order in which locks are acquired on a table during a query.
This with a goal of analyzing the lock order of queries against the same table to prevent deadlocks.
I'm using SQL Server 2008 R2.
From Management Studio I execute:
begin transaction
<my query>
exec sp_lock
rollback transaction
In the output I see interesting information about which locks are acquired, but:
- are this locks ordered by the time they're acquired? That is, can I be sure that lock at row n is acquired before lock at row n+1?
- if not, how can I get this information?
I know there's an option in the SSMS to remove the hook at the option "Prevent Saving changes that require table re-creation".
But how can I set the option silent. I mean for instance at the setup or by a secret T-SQL command or setting a value in a hidden file? I don't want the user to open the options dialog.
I logged the registry by a tool and alas there was it. So the thing is to set the registry entry by our own setup after installing the SSMS.
[HKEY_CURRENT_USERSoftwareMicrosoftSQL Server Management Studio12.0DataProject]
"WarnTablesReCreated"=dword:00000001
Hi,
I found out that executing the procedure SP_INDEXOPTION and setting 'AllowRowLocks' to false i can prevent the sql server from locking rows in a table and 'AllowPageLocks' prevents from pages being locked. I need to preform same operation
in case of tables. I need to perform insertion operations concurrently and acquire required locks manually. Is there a way to stop sqlserver from acquiring locks on the table. I need to disable all the locks (row, page and table).
Thank you in advance.
We are trying to do some utilization calculations that need to factor in a given number of holiday hours per month.
I have a date dimension table (dimdate). Has a row for every day of every year (2006-2015)
I have a work entry fact table (timedetail). Has a row for every work entry. Each row has a worked date, and this column has a relationship to dimdate.
Our holidays fluctuate, and we offer floating holidays that our staff get to pick. So we cannot hard code which individual dates in dimdate as holidays. So what we have done is added a column to our dimdate table called HolidayHoursPerMonth.Â
This column will list the number of holiday hours available in the given month that the individual date happens to fall within, thus there are a lot of duplicates. Below is a brief example of dimdate. In the example below, there are 0 holiday hours for the month of June, and their are 8 holiday hours for the month of July.
DateKey MonthNumber HolidayHoursPerMonth
6/29/2015 6 0
6/30/2015 6 0
7/1/2015 7 8
7/2/2015 7 8
I have a pivot table create based of the fact table. I then have various date slicers from the dimension table (i.e. year, month). If I simply drag this column into the pivot table and summarize by MAX it works when you are sliced on a single month, but breaks if anything but a single month is sliced on. Â
I am trying to create a measure that calculates the amount of holiday hours based on the what's sliced, but only using a single value for each month. For example July should just be 8, not 8 x #of days in the month.Â
Listed below is how many hours per month. So if you were to slice on an entire year, the measure should equal 64. If you sliced on Jan, Feb and March, the measure should equal 12. If you were to slice nothing, thus including all 15 years in our dimdate table, the measure should equal 640 (10 years x 64 hours per year).
MonthNumberOfYear HolidayHoursPerMonth
1 8
2 4
3 0
4 0
5 8
6 0
7 8
8 0
9 8
10 4
11 16
12 8
Hi,
I'm running a merge replication on a sql2k machine to 6 sql2k subscribers.
Since a few day's only one of the merge agents fail's with the following error:
The merge process could not retrieve generation information at the 'Subscriber'.
The index entry for row ID was not found in index ID 3, of table 357576312, in database 'PBB006'.
All DBCC CHECKDB command's return 0 errors :confused:
I'm not sure if the table that's referred to in the message is on the distribution side or the subscribers side? A select * from sysobjects where id=357576312 gives different results on both sides . .
Any ideas as to what is causing this error?
Can someone please help me solve the following error? I am not sure of the version my hosting company is using and where to get the manual.
Could not add the entry because: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '-id, title, entry, date_entered) VALUES ('testing', 'testing', . The query was INSERT INTO blog_entries (blog-id, title, entry, date_entered) VALUES ('testing', 'testing', 'testing'.
PHP Code:
if ($dbh = mysql_connect ('localhost', 'blu6592_money', 'rich')) {
print '<p>Successfully connected to MySQL.</p>';
if (mysql_select_db ('blu6592_myblog')) {
print '<p>The database has been selected.</p>';
} else {
die ('<p>Could not select the database because: <b>' . mysql_error() . '</b></p>');
}
$query = "INSERT INTO blog_entries
(blog-id, title, entry, date_entered)
VALUES (0, '{$_POST['title']}',
'{$_POST['title']}',
'{$_POST['entry']}', NOW())";
if (mysql_query ($query)) {
print '<p>The blog entry has been added.</p>';
} else {
print "<p>Could not add the entry because: <b>" . mysql_error() . "</b>. The query was $query.</p>";
}
} else {
die ('<p>Could not connect to MySQL because: <b>' . mysql_error() . '</b></p>');
}
mysql_close();
Thanks in advance.
(I don't post here often, so in case I'm violating long-standing taboosof this newsgroup, I apologize in advance for calling a relation atable, using nulls, and other ignorant, destructive, and comtemptibleterminology.)I have a table that's keeping a sort of running log of different typesof changes to pieces of data. The table has a foreign key of the databeing changed, the foreign key for the type of change occuring, someinformation about the change in a couple more columns, and a timestampfor each entry. So it's:dataIDeventIDeventInfotimestampWhat I'd like to do, if at all possible, is a single SQL query that,given a dataID, returns the most recent eventInfo and timestamp foreach eventID. Is this possible?Many thanks.-Eric
View 3 Replies View RelatedI am building my first ASP.Net app from scratch and while working on the DAL I came across the problem of SQL Injection. I searched on the web and read different articles but I am still unsure about the answer. My question is should I add
db.AddInParameter(dbCommand, "AvatarImageID", DbType.Int32, avatarImageID);
Add in Parameters to my C# code to avoid SQL Injection. What is the best practice. I am unclear if the stored procedure already helps me avoid SQl Injection or if I need the add in parameters in the C# methods to make it work. I need some help. Thanks, Newbie
My C# update method in the DAL (still working on the code)
private static bool Update(AvatarImageInfo avatarImage)
{
//Invoke a SQL command and return true if the update was successful.
db.ExecuteNonQuery("syl_AvatarImageUpdate",
avatarImage.AvatarImageID,
avatarImage.DateAdded,
avatarImage.ImageName,
avatarImage.ImagePath,
avatarImage.IsApproved);
return true;
}
I am using stored procedures to access the data in the database.
My update stored proc
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[syl_AvatarImageUpdate]
@AvatarImageID int,
@DateAdded datetime,
@ImageName nvarchar(64),
@ImagePath nvarchar(64),
@IsApproved bit
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
BEGIN TRY
UPDATE [syl_AvatarImages]
SET
[DateAdded] = @DateAdded,
[ImageName] = @ImageName,
[ImagePath] = @ImagePath,
[IsApproved] = @IsApproved
WHERE [AvatarImageID] = @AvatarImageID
RETURN
END TRY
BEGIN CATCH
--Execute LogError SP
EXECUTE [dbo].[syl_LogError];
--Being in a Catch Block indicates failure.
--Force RETURN to -1 for consistency (other return values are generated, such as -6).
RETURN -1
END CATCH
END
Have a job that calls a DTS package, DTS is an Export & Import wizard to copy tables. Someone deleted a table from source and my job failed last night. Inputs appreaciated.
View 12 Replies View RelatedI'm going thru my application log, and just seeing what errors are popping up. I have a relatively intense search feature, thats causing alot of deadlocks.
Exception type: SqlException
Exception message: Transaction (Process ID 105) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
In general, what's the best way to resolve this ?
Should I see if I can apply "WITH (NOLOCK)" to my data ?
Any suggestions are greatly appreciated !
thanks again!
mike123
Hi
I want to try and protect myself from my own stupidity. I have a number of sql databases, but one is LIVE. It is easy to drop tables but I want to set something (e.g. a password) which will help prevent me from dropping tables on the live database.
Any help/direction here would be appreciated.
Hi,I'm using SQL Server 2000 MSDE on a laptop running Windows XP.I have a couple of SP's that that quite some time to compile. So I waswondering: is there any way to have the database *not* recompile them everytime after a reboot?BOL says: "As a database is changed by such actions as adding indexes orchanging data in indexed columns, the original query plans used to accessits tables should be optimized again by recompiling them. This optimizationhappens automatically the first time a stored procedure is run afterMicrosoft® SQL ServerT 2000 is restarted."Now the SQL Server is restarted a lot, because laptops don't have endlessbatteries <g>Cheers,Bas
View 3 Replies View RelatedAnyone Got any other advice?
http://www.dbforums.com/t993214.html
"High priority system task thread: Operating system error Exception 0xAE encountered."
we are seeing this on one of our development servers, running SQL 2005 Enterprise SP1. The symptom is that after the sql service has been running a while (order of days), this error starts getting written to the sql server log file over and over, and eventually the logfile fills the drive.
Apparently it's fixed by this hotfix, but our ops team doesn't want to install this - they'd rather just cycle the service and delete the log when it happens.
I was wondering if anyone else has seen it might know the root cause so we might be able to workaround it without cycling the service. I know, lame question. The correct answer is "install the hotfix" or "install sp2" but our ops team won't do that for now...
www.elsasoft.org
Hi All,
I have a table with name C1_Subscribers with three fields (1)-MobileNumber [varchar]
(2)-ReceivedTime [datetime]
(3)-Status [char].
Now here how to remove duplicate entry of same mobile number to MobileNumber field?
Regards
Shaji
Hello
I noticed a spelling mistake in the data in a column of several tables, I used the following syntax to alter the spelling:
UPDATE [dbo].[Prod_Cat] SET [ProdName]=N'merseyside' WHERE ProdName = 'mmserseyside'
The above code correctly updated the spelling error, but it also inserted a new row with the corrected data.
So I found myself with two Identical rows containing the corrected information. I had to manually delete the extra row. Because if I had put in a DELETE statement, I would have then lost both rows.
What do I need to do to prevent this happening next time. As I find that I need to update the names of some products, but I don't want to duplicate them.
Thanks
Lynn
How can I prevent duplicate inserts or entries to a table?
Thank you.
Note: I am using SQL Server and coding ASP.net pages in VB.
this is a question I put in the sql community in microsoft, but havent be answered in full
------------
I am using dynamic sql to do a query with differents 'order' sentences and/or 'where' sentences depending on a variable I pass to the sp
ex:
create proc ex
@orden varchar(100)
@criterio varchar(100)
as
declare consulta varchar(4000)
set consulta=N'select pais from paises where '+@criterio' order by '+@orden
------------
I'd like to know it it uses 2 sp in the cache, as I read, the main sp and the query inside the variable of the dynamic sql. if so, as I imagine, then I suppose I have to do the main sp without any 'if' sentence to be the same sp, and so taking it from the cache and not recompile the sp
now, I have various 'if' sentences in the main sp (the caller of the dynamic sql) but I plan to remove them and do the 'if' by program -it is in asp.net-, so I suppose it is better because in this way the main sp is took from the cache, supposing this uses the cache different that the dynamic sql in the variable
what do u think? does the dynamic sql use 2 caches? if so, u think it is better to try to do the main sp same in all uses (no 'if' statements)?
-----
They told me this coding is not good (dynamic sql) because it can give control to the user?
I ask, how does it give control to use? what ar sql injection attack and how to prevent them?
I use dynamis sql because I have 150 queries to do, and thought dynamic sql is good
is it true that dynamic sql have to be recompiled in each execution? I suppose so only if the sql variable is different, right?
can u help me?