I've got a table name Messages and each message has a MessageID (the primary, auto-generated column) and a ThreadID (for grouping replies together). When I create a new message, I want to insert a new ThreadID if none is given to the stored procedure. I'm looking for something like NewID() as the default value but that inserts a NewInt. Do I have to write my own trigger?
And I know ThreadID should be a foreign key to a Threads table but I'm keeping it simple for now. I have the option of making that later if I like.
Thanks.
<disclaimer>I'm only using Web Matrix and have very little SQL knowledge</disclaimer>
I am doing an INSERT into a file where the primary key (UniqueID) is automatically generated. However, as soon as the record is inserted I need the UniqueID for further processing.
The only way I can see for me to get the UniqueID is to do a SELECT immediately after the INSERT, which seems a bit of an overhead.
So, just checking really, is this my only option or is there a super impressive way of passing the UniqueID back via the INSERT.
hello, i have two datasets. i want to insert all data from one dataset to other. i am using this:DataSet old = new DataSet(); download dd = new download();old = dd.contactlist("select", "admin", "001"); SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["Project1ConnectionString"].ToString()); try {string cmd = "select * from contact"; SqlDataAdapter danew = new SqlDataAdapter(cmd, conn);DataSet dsOld = new DataSet();DataSet dsNew = new DataSet(); dsOld = old.Copy(); danew.Fill(dsNew); DataTable dtOld = dsOld.Tables[0];DataTable dtNew = dsNew.Tables[0];
dtNew.Rows.Add(row); }DataSet nds = dsNew.GetChanges();SqlCommandBuilder bld = new SqlCommandBuilder(danew); danew.Update(nds); } here rec_key is the primary key. this code works fine but it will insert all data from one dataset to other each time i click a button but i wanted that if data with a rec_key already exists will not insert. only unique values of rec_key will be inserted. i am using this code for this:foreach(DataRow rr in dtNew.Rows) { if (rr["rec_key"] == objRow["rec_key"]) { Response.Write("same"); } else { dtNew.Rows.Add(row); } } but this doesn't work. please guide me how can i do this. thanks
Msg 2601, Level 14, State 1, Line 1 Cannot insert duplicate key row in object 'dbo.ElementLocalCharacterised' with unique index 'ElementLocalCharacterised_uq'. The statement has been terminated.
Now my question is : does this error mean that all inserts are done, despite those where the unique key produced a conflict? Or does it mean that none of the inserts are done (all are rejected because at least one gave a conflict) ?
If the second is the case I would like to know if it is possible to execute the insert into in a way that all inserts are done despite those that raise a conflict?
i have temp table name "#TempResult" with column names Memberid,Month,Year. Consider this temp table alredy has some rows from previuos query. I have one more table name "Rebate" which also has columns MemberID,Month, Year and some more columns. Now i wanted to insert rows from "Rebate" Table into Temp Table where MemberID.Month and Year DOES NOT exist in Temp table. MemberID + Month + Year should ne unique in Temp table
I am making a program in Visual Basic .NET with SQL Server 2000.
I have a table "MyTable" with a primary key named "Id". The primary key is 'Create Unique' checked and 'Index' selected. When I insert all the fields required, except "Id" of course, I need the new record's "Id" in my VisualBasic program, but I don't know how...
I must do one of them, but don't know how either of them:
-Create a trigger on insertion that will send to the user that sended the insert command the "Id" of the record just created.
or
-get the command in Visual Basic that will send the Insert command with a return field ("Id")
How do I get the next int value for a column before I do an insert inMY SQL Server 2000? I'm currently using Oracle sequence and doingsomething like:select seq.nextval from dual;Then I do my insert into 3 different table all using the same uniqueID.I can't use the @@identity function because my application uses aconnection pool and it's not garanteed that a connection won't be usedby another request so under a lot of load there could be major problemsand this doens't work:insert into <table>;select @@identity;This doesn't work because the select @@identity might give me the valueof an insert from someone else's request.Thanks,Brent
May I know what does the syntax of inserting data into a field of type Unique Identifier look like?
[code] INSERT INTO THAI_MK_MT_Log(GUID, Status) VALUES ('2331486348632', 'S') [/code]
The "2331486348632" is to be inserted into a unique identifier field. If i coded the insert statement as the above, I got an error saying that "Syntax error converting from a character string to uniqueidentifier".....
I'm trying to use merge data from a staging table to a production table. There are a lot of duplicate values for serverName and I only want to insert one instance where there are duplicates.
How I can adapt the code I have so far to achieve this?
MERGE tblServer AS TARGET USING tblTemp AS SOURCE ON (TARGET.serverName = SOURCE.serverName)
WHEN MATCHED THEN UPDATE SET TARGET.serverName = SOURCE.serverName, TARGET.serverLocation = SOURCE.serverLocation
WHEN NOT MATCHED BY TARGET THEN INSERT (serverName, serverLocation) VALUES (SOURCE.serverName, SOURCE.serverLocation)
The following SP causes the error "Violation of UNIQUE KEY constraint 'AlumniID'. Cannot insert duplicate key in object [table name]. The statement has been terminated." AlumniID is the table's PK and is set to autoincrement. I'd appreciate any help or suggestions.
1 ALTER PROCEDURE dbo.sp_CreateUser 2 3 @UserID uniqueidentifier, 4 @UserName nvarchar(128), 5 @Email nvarchar(50), 6 @FirstName nvarchar(25), 7 @LastName nvarchar(50), 8 @Teacher nvarchar(25), 9 @GradYr int 10 11 AS 12 SET NOCOUNT ON; 13 --DECLARE @UserID uniqueidentifier 14 --SELECT @UserID = NULL 15 --SELECT @UserID = UserID FROM dbo.aspnet_Users WHERE LOWER(@UserName) = LoweredUserName-- AND @ApplicationId = ApplicationId 16 INSERT INTO [table] 17 (UserID,UserName,Email,FirstName,LastName,Teacher,GradYr) 18 VALUES (@UserID,@UserName,@Email,@FirstName,@LastName,@Teacher,@GradYr
All,Just want to make sure that I understand what's going on here.I have a table with IGNORE_DUP_KEY set on a unique, multi-columnindex.What I'm seeing is this:1) When performing a BULK INSERT, the UNIQUE index is not beingrespected and rows which violate the unique index are inserted.2) When performing a regular INSERT, the UNIQUE index is beingrespected and rows which violate the unique index ARE NOT inserted.Is this expected behavior.Also, I have some questions, given the index described.Q1) Will a regular INSERT that attempts to insert duplicate data getan error back or just a warning?Q2) How can I set things up so that a BULK INSERT would NOT allowduplicates to be entered into the table?Thanks,Wes Gamble
I have a table with 0 records. When I try to insert records using a SP, it gives the following error. Violation of UNIQUE KEY Constraint 'constraint name'. Cannot insert duplicate key in object 'Objectname'. How do I resolve this. Thanks.
I have 1 client who keeps running into the following error on the subscriber and merge agents >
€śCannot insert duplicate key row in object 'MSmerge_genhistory' with unique index 'unc1MSmerge_genhistory'.€?
Last time we got this error I ran a reindex on table MSmerge_genhistory on the publisher database, I then successfully generated a new snapshot and the subscribers started to synchronize again. This time around I keep getting the error even after I follow these steps (I also ran all the jobs to clean up replication). The last time I ran into this error I created a job to reindex msmerge_genhistory on a nightly bases in an effort to avoid this problem. Can somebody please provide me with a workaround and also the reason why this error occurs in the first place.
I have been recently redesigning my tables - creating FK relationships from child tables to the PK userid in the Users table. The specifics of what I did and why can be seen here:
Cannot insert duplicate key row in object 'dbo.lastlogin' with unique index 'IX_lastlogin'. The statement has been terminated.
Or, for that matter, SavedSearches or any other table where I need to insert the same userid twice. I can see why I would want to avoid duplicates in the Users table. But, for lastlogin, savedsearches, and a few of my other tables, the same user may account for multiple rows.
Any suggestions as to where I messed up and how to deal with this?
Thanks.
DBO.USERS
Code Snippet
CREATE TABLE [dbo].[users]( [userid] [int] IDENTITY(1,1) NOT NULL, [lastname] [varchar](50) NULL, [firstname] [varchar](50) NULL, [email] [varchar](50) NOT NULL, [alternateemail] [varchar](50) NULL, [password] [varchar](50) NOT NULL, [role] [varchar](10) NOT NULL, [securityquestion] [varchar](50) NOT NULL, [securityanswer] [varchar](50) NOT NULL, [zipcode] [int] NOT NULL, [birthmonth] [tinyint] NOT NULL, [birthday] [tinyint] NOT NULL, [birthyear] [int] NOT NULL, [gender] [varchar](10) NULL, [city] [varchar](50) NULL, [state] [varchar](50) NULL, [country] [varchar](50) NULL, [registerdate] [datetime] NOT NULL, [editdate] [datetime] NULL, [confirmed] [bit] NULL CONSTRAINT [DF__Users__confirmed__4CC05EF3] DEFAULT ((0)), CONSTRAINT [PK_users] PRIMARY KEY CLUSTERED ( [userid] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY], CONSTRAINT [IX_email] UNIQUE NONCLUSTERED ( [email] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY]
GO SET ANSI_PADDING OFF
/****** Object: Table [dbo].[lastlogin] Script Date: 08/22/2007 14:16:16 ******/ SET ANSI_NULLS ON
GO SET ANSI_PADDING OFF GO ALTER TABLE [dbo].[savedsearches] WITH NOCHECK ADD CONSTRAINT [FK_savedsearches_users] FOREIGN KEY([userid]) REFERENCES [dbo].[users] ([userid]) GO ALTER TABLE [dbo].[savedsearches] CHECK CONSTRAINT [FK_savedsearches_users] GO SET QUOTED_IDENTIFIER ON GO
The following insert statement returned the error in the subject because userid = 32 already exists in the Users table.
CREATE TABLE [dbo].[lastlogin]( [lastloginid] [int] IDENTITY(1,1) NOT NULL, [userid] [int] NOT NULL, [date] [datetime] NOT NULL, [status] [bit] NOT NULL CONSTRAINT [DF_lastlogin_status] DEFAULT ((0)), [activity] [datetime] NOT NULL CONSTRAINT [DF_lastlogin_activity] DEFAULT (getutcdate()), [online] AS (case when [status]=(1) AND datediff(minute,[activity],getutcdate())<(30) then (1) else (0) end), CONSTRAINT [PK_lastlogin] PRIMARY KEY CLUSTERED ( [date] ASC, [userid] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY]
GO ALTER TABLE [dbo].[lastlogin] WITH NOCHECK ADD CONSTRAINT [FK_lastlogin_users] FOREIGN KEY([userid]) REFERENCES [dbo].[users] ([userid]) GO ALTER TABLE [dbo].[lastlogin] CHECK CONSTRAINT [FK_lastlogin_users]
I have an issue where I am getting an error on an unique index.
I know why I am getting the error but not sure how to get around it.
The query does a check on whether a unique value exists in the Insert/Select. If I run it one record at a time (SELECT TOP 1...) it works fine and just won't update it if the record exists.
But if I do it in a batch, I get the error. I assume this is because it does the checking on the file before records are written out and then writes out the records one at a time from a temporary table.
It thinks all the records are unique because it compares the records one at a time to the original table (where there would be no duplicates). But it doesn't check the records against each other. Then when it actually writes out the record, the duplicate is there.
How do I do a batch where the Insert/Select would write out the records without the duplicates as it does when I do it one record at a time.
We are developing a project that is expected to hold TB of data and the back end used is SQL Server 2005.
I have the following problem
I have applied Nonclustered index over a column on a table.
Designed a SP for insertion which caters for updation incase the criteria based on the input is met.
The logic goes like this
Incase there exists a row containing the value of the column that is indexed for uniqueness, there should be updation. If not there should be a new row created.
However often there is an error message that is placed above. This happens only on some of the SPs and only on rare occasions.
Can any body tell me if there is any problem with the SQL Server 2005
Msg 2601, Level 14, State 1, Procedure DFP_report_load, Line 161 Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'.
The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324). Msg 3621, Level 0, State 0, Procedure DFP_report_load, Line 161
The statement has been terminated.
Exception in Task: Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'. The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324).
I have a table in which a non-primary key column has a unique index on it. If I am inserting a record into this table with a duplicate column value for the indexed column, then what will be the error number of the error in above scenario? OR How could I find this out?
A UNIQUE INDEX must inherently impose a unique constraint and a UNIQUE CONSTRAINT is most likely implemented via a UNIQUE INDEX. So what is the difference? When you create in Enterprise Manager you must select one or the other.
What's the difference in the effect of the followings: CREATE UNIQUE NONCLUSTERED INDEX and ALTER TABLE dbo.titles ADD CONSTRAINT titleind UNIQUE NONCLUSTERED
I found there're two settings in Indexs/Keys dialog box of the management studio, Is Unique, and Type. The DDL statements above are generated by setting Is Unique to yes plus Type to Index, and just Type to Unique Key, respectively. What's the difference between them?
Hi everyone, I need urgent help to resolve this issue... As far as the performance goes which one is better.. Unique Index(col1, col2) OR Unique constraint(col1, col2) ? Unique constraint automatically adds a unique index and unique index takes care of uniqueness then whats the use of unique constraint ?
BOL says a unique constraint is preferred over a unique index. It also states that a unique constraint creates a unique index. What then is the difference between the two, and why is a constraint preferred over the index?
hi team, .Can i create umique constraint with out unique index.when i am creating a unique constraint sql creates a unique index (default) can i have only unique constraint ?
I am having a problem trying to figure out the best way to get the results I need. I have a table of part numbers that is joined with a table of notes. The table of notes is specific to the part number and user. A row in the notes table is only created if the user has entered notes on that part number. I need to create a search that grabs all matches on a keyword and returns the records. The problem is that it currently returns a row from the parts table with no notes and a separate row with the notes included if they had created an entry. It seems like this should be easy but it eludes me today. Here is the code
Code Snippet create procedure SearchPartKeyword ( @Keyword varchar(250) = null, @Universal_Id varchar(10) = null ) as select p.PartNumber, p.Description, p.ServiceOrderable, n.MyNotes, p.LargestAssembly, p.DMM, p.Legacy, p.Folder, p.Printer from Parts p inner join notes n on p.PartNumber = n.Identifier where n.Universal_ID = @Universal_ID and p.Description like @Keyword union select p.PartNumber, p.Description, p.ServiceOrderable, '' as MyNotes, p.LargestAssembly, p.DMM, p.Legacy, p.Folder, p.Printer from Parts p where p.Description like @Keyword
and the results: PartNo Description SO Notes LA DMM Legacy Folder Printer de90008 MAIN BOARD 1 DGF1 114688 0 0 0 de90008 MAIN BOARD 1 I love this part Really I do DGF1 114688 0 0 0
This could return multiple part numbers and If they have entered notes I want the row with the notes
create table Test ( [recId] [int] identity(1, 1) not null, [code] [varchar](50) not null, [prime] [bit] not null constraint [DF_Test_prime] default (cast(0 as bit)), constraint [PK_Test] primary key clustered ( [recId] ) with fillfactor = 90 on [primary] ) on [primary] go
insert into Test (code, prime) values ('AVA', cast(1 as bit)) insert into Test (code, prime) values ('BUS', cast(1 as bit)) insert into Test (code, prime) values ('BUS', cast(0 as bit)) insert into Test (code, prime) values ('BUS', cast(0 as bit)) insert into Test (code, prime) values ('CAR', cast(1 as bit)) insert into Test (code, prime) values ('CAR', cast(0 as bit)) insert into Test (code, prime) values ('RLW', cast(1 as bit)) insert into Test (code, prime) values ('RLW', cast(0 as bit)) insert into Test (code, prime) values ('RLW', cast(0 as bit))
select * from Test
I need to create a constraint on this table that will not allow me to have two rows that are prime for the same code. So the following insert statement should fail:
-- This should fail insert into Test (code, prime) values ('RLW', cast(1 as bit))
hello friends my one insert code lines is below :) what does int32 mean ? AND WHAT IS DIFFERENT BETWEEN ONE CODE LINES AND SECOND CODE LINES :)Dim conn As New SqlConnection(ConfigurationManager.ConnectionStrings("ConnectionString").ConnectionString) Dim cmd As New SqlCommand("Insert into table1 (UserId) VALUES (@UserId)", conn) 'you should use sproc instead cmd.Parameters.AddWithValue("@UserId", textbox1.text) 'your value Try conn.Open()Dim rows As Int32 = cmd.ExecuteNonQuery() conn.Close()Trace.Write(String.Format("You have {0} rows inserted successfully!", rows.ToString())) Catch sex As SqlExceptionThrow sex Finally If conn.State <> Data.ConnectionState.Closed Then conn.Close() End If End Try MY SECOND INSERT CODE LINES IS BELOWDim SglDataSource2, yeni As New SqlDataSource() SglDataSource2.ConnectionString = ConfigurationManager.ConnectionStrings("ConnectionString").ToString SglDataSource2.InsertCommandType = SqlDataSourceCommandType.Text SglDataSource2.InsertCommand = "INSERT INTO urunlistesi2 (kategori1) VALUES (@kategori1)" SglDataSource2.InsertParameters.Add("kategori1", kategoril1.Text)Dim rowsaffected As Integer = 0 Try rowsaffected = SglDataSource2.Insert()Catch ex As Exception Server.Transfer("yardim.aspx") Finally SglDataSource2 = Nothing End Try If rowsaffected <> 1 ThenServer.Transfer("yardim.aspx") ElseServer.Transfer("urunsat.aspx") End If
in sql server 2000 i know how to make primary key using enterprise manager i want to make one of the columns foreign key,how to do that using enterprise manager.and what is the difference between both.
In this table there are two columns, one called "company number" (NUMBER) and one called "company name" (VARCHAR). I have an index called agents_PK that are unique and indexes both columns with company number as first and company name as second in the column order.
But when I look at the data in the column company number its not unique, I find several rows with the same number.
I've always used the identity field in SQL server to maintain the unique id for a table. With the new DB design at work we brought in a dba and she made us move away from allowing SQL maintain the unique field and having us maintain the unique field in code. To do that we had to begin a transaction, do a select max(id) + 1, insert into table, commit transaction. Doing it this way, I'm starting to see deadlocks due to the transactions locking the table.
Getting down to what I wanted to know, what is the pro's/con's you guys see in maintaining the unique ID this way and is there a better way of creating an unique id in T-SQL code?
