Clearly, a non clustered index can improve the performance of a SELECT statement. Is the same true with an INSERT statement? My contention is that the use of a non clustered index will hurt the performace of an insert statement.
Ideas??
I understand that minimal logging can occur on a non clustered indexed heap as long as [URL] ...
*not replicated
*tablock is used
*table is empty
The following test seems to contradict this
In the test I create a non indexed heap, insert some record and check the log, then repeat the test on an indexed heap.
The results suggest that even though the conditions for minimal logging into a indexed heap are met, minimal logging is not happening although it does happen on an non indexed heap. What am I doing wrong?
CREATE DATABASE logtest
GO
USE logtest
GO
CREATE TABLE test (field varchar(100))
GO
CHECKPOINT
[Code] ....
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
Thanks in advance
R Suresh, SQLDBA
Hi All,
I 'm working to improve some sql performance.
One of the major syntax inside the SELECT statment is ..
WHERE FIELDA IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='A') AND
WHERE FIELDB IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='B') AND
WHERE FIELDC IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='C') AND
WHERE FIELDD IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='D') AND
WHERE FIELDE IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='E') AND
WHERE FIELDF IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='F')
(It's to compare the field content with some user input parameter inside a parameter table... )
I think properly is that the SELECT ... IN is causing much slowness in the sql statement. I have indexed FIELDA , FIELDB, FILEDC etc and those PARAVALUE and PARATYPE in the PARATABLE table. But perfromance is still slow and execution takes >20 seconds for 200000 rows of records.
Do any one know if still any chance to improvide the performance like this?
Much Thanks,
Andy
I've have a need with SQL Server 2005 (so I've no MERGE statement), I have to merge 2 tables, the target table has 10 fields, the first 4 are the clustered index and primary key, the source table has the same fields and index.Since I can't use the MERGE statement (I'm in SQL 2005) I have to make a double step operation, and INSERT and an UPDATE, I can't figure how to design the WHERE condition for the insert statement.
View 2 Replies View RelatedAn insert statement was not inserting all the data into a table. Found it very strange as the other fields in the row were inserted. I ran SQL profiler and found that sql statement had all the fields in the insert statement but some of the fields were not inserted. Below is the sql statement which is created dyanmically by a asp.net C# class. The columns which are not inserted are 'totaltax' and 'totalamount' ...while the 'shipto_name' etc...were inserted.there were not errors thrown. The sql from the code cannot be shown here as it is dynamically built referencing C# class files.It works fine on another test database which uses the same dlls. The only difference i found was the difference in date formats..@totalamount=1625.62,@totaltax=125.62are not inserted into the database.Below is the statement copied from SQL profiler.exec sp_executesql N'INSERT INTO salesorder(billto_city, billto_country, billto_line1, billto_line2, billto_name,billto_postalcode, billto_stateorprovince, billto_telephone, contactid, CreatedOn, customerid, customeridtype,DeletionStateCode, discountamount, discountpercentage, ModifiedOn, name, ordernumber,pricelevelid, salesorderId, shipto_city, shipto_country,shipto_line1, shipto_line2, shipto_name, shipto_postalcode, shipto_stateorprovince,shipto_telephone, StateCode, submitdate, totalamount,totallineitemamount, totaltax ) VALUES(@billto_city, @billto_country, @billto_line1, @billto_line2,@billto_name, @billto_postalcode, @billto_stateorprovince, @billto_telephone, @contactid, @CreatedOn, @customerid,@customeridtype, @DeletionStateCode, @discountamount,@discountpercentage, @ModifiedOn, @name, @ordernumber, @pricelevelid, @salesorderId,@shipto_city, @shipto_country, @shipto_line1, @shipto_line2,@shipto_name, @shipto_postalcode, @shipto_stateorprovince, @shipto_telephone,@StateCode, @submitdate, @totalamount, @totallineitemamount, @totaltax)',N'@billto_city nvarchar(8),@billto_country nvarchar(13),@billto_line1 nvarchar(3),@billto_line2 nvarchar(4),@billto_name nvarchar(15),@billto_postalcode nvarchar(5),@billto_stateorprovince nvarchar(8),@billto_telephone nvarchar(3),@contactid uniqueidentifier,@CreatedOn datetime,@customerid uniqueidentifier,@customeridtype int,@DeletionStateCode int,@discountamount decimal(1,0),@discountpercentage decimal(1,0),@ModifiedOn datetime,@name nvarchar(33),@ordernumber nvarchar(18),@pricelevelid uniqueidentifier,@salesorderId uniqueidentifier,@shipto_city nvarchar(8),@shipto_country nvarchar(13),@shipto_line1 nvarchar(3),@shipto_line2 nvarchar(4),@shipto_name nvarchar(15),@shipto_postalcode nvarchar(5),@shipto_stateorprovince nvarchar(8),@shipto_telephone nvarchar(3),@StateCode int,@submitdate datetime,@totalamount decimal(6,2),@totallineitemamount decimal(6,2),@totaltax decimal(5,2)',@billto_city=N'New York',@billto_country=N'United States',@billto_line1=N'454',@billto_line2=N'Road',@billto_name=N'Hillary Clinton',@billto_postalcode=N'10001',@billto_stateorprovince=N'New York',@billto_telephone=N'124',@contactid='8DAFE298-3A25-42EE-B208-0B79DE653B61',@CreatedOn=''2008-04-18 13:37:12:013'',@customerid='8DAFE298-3A25-42EE-B208-0B79DE653B61',@customeridtype=2,@DeletionStateCode=0,@discountamount=0,@discountpercentage=0,@ModifiedOn=''2008-04-18 13:37:12:013'',@name=N'E-Commerce Order (Before billing)',@ordernumber=N'BRKV-CC-OKRW5764YS',@pricelevelid='B74DB28B-AA8F-DC11-B289-000423B63B71',@salesorderId='9CD0E11A-5A6D-4584-BC3E-4292EBA6ED24',@shipto_city=N'New York',@shipto_country=N'United States',@shipto_line1=N'454',@shipto_line2=N'Road',@shipto_name=N'Hillary Clinton',@shipto_postalcode=N'10001',@shipto_stateorprovince=N'New York',@shipto_telephone=N'124',@StateCode=0,@submitdate=''2008-04-18 14:37:10:140'',@totalamount=1625.62,@totallineitemamount=1500.00,@totaltax=125.62
thanks
Hello
I have a problem with setting relations properly when inserting data using adonet. Already have searched for a solutions, still not finding a mistake...
Here's the sql management studio diagram :
and here goes the code1 DataSet ds = new DataSet();
2
3 SqlDataAdapter myCommand1 = new SqlDataAdapter("select * from SurveyTemplate", myConnection);
4 SqlCommandBuilder cb = new SqlCommandBuilder(myCommand1);
5 myCommand1.FillSchema(ds, SchemaType.Source);
6 DataTable pTable = ds.Tables["Table"];
7 pTable.TableName = "SurveyTemplate";
8 myCommand1.InsertCommand = cb.GetInsertCommand();
9 myCommand1.InsertCommand.Connection = myConnection;
10
11 SqlDataAdapter myCommand2 = new SqlDataAdapter("select * from Question", myConnection);
12 cb = new SqlCommandBuilder(myCommand2);
13 myCommand2.FillSchema(ds, SchemaType.Source);
14 pTable = ds.Tables["Table"];
15 pTable.TableName = "Question";
16 myCommand2.InsertCommand = cb.GetInsertCommand();
17 myCommand2.InsertCommand.Connection = myConnection;
18
19 SqlDataAdapter myCommand3 = new SqlDataAdapter("select * from Possible_Answer", myConnection);
20 cb = new SqlCommandBuilder(myCommand3);
21 myCommand3.FillSchema(ds, SchemaType.Source);
22 pTable = ds.Tables["Table"];
23 pTable.TableName = "Possible_Answer";
24 myCommand3.InsertCommand = cb.GetInsertCommand();
25 myCommand3.InsertCommand.Connection = myConnection;
26
27 ds.Relations.Add(new DataRelation("FK_Question_SurveyTemplate", ds.Tables["SurveyTemplate"].Columns["id"], ds.Tables["Question"].Columns["surveyTemplateID"]));
28 ds.Relations.Add(new DataRelation("FK_Possible_Answer_Question", ds.Tables["Question"].Columns["id"], ds.Tables["Possible_Answer"].Columns["questionID"]));
29
30 DataRow dr = ds.Tables["SurveyTemplate"].NewRow();
31 dr["name"] = o[0];
32 dr["description"] = o[1];
33 dr["active"] = 1;
34 ds.Tables["SurveyTemplate"].Rows.Add(dr);
35
36 DataRow dr1 = ds.Tables["Question"].NewRow();
37 dr1["questionIndex"] = 1;
38 dr1["questionContent"] = "q1";
39 dr1.SetParentRow(dr);
40 ds.Tables["Question"].Rows.Add(dr1);
41
42 DataRow dr2 = ds.Tables["Possible_Answer"].NewRow();
43 dr2["answerIndex"] = 1;
44 dr2["answerContent"] = "a11";
45 dr2.SetParentRow(dr1);
46 ds.Tables["Possible_Answer"].Rows.Add(dr2);
47
48 dr1 = ds.Tables["Question"].NewRow();
49 dr1["questionIndex"] = 2;
50 dr1["questionContent"] = "q2";
51 dr1.SetParentRow(dr);
52 ds.Tables["Question"].Rows.Add(dr1);
53
54 dr2 = ds.Tables["Possible_Answer"].NewRow();
55 dr2["answerIndex"] = 1;
56 dr2["answerContent"] = "a21";
57 dr2.SetParentRow(dr1);
58 ds.Tables["Possible_Answer"].Rows.Add(dr2);
59
60 dr2 = ds.Tables["Possible_Answer"].NewRow();
61 dr2["answerIndex"] = 2;
62 dr2["answerContent"] = "a22";
63 dr2.SetParentRow(dr1);
64 ds.Tables["Possible_Answer"].Rows.Add(dr2);
65
66 myCommand1.Update(ds,"SurveyTemplate");
67 myCommand2.Update(ds, "Question");
68 myCommand3.Update(ds, "Possible_Answer");
69 ds.AcceptChanges();
70
and that causes (at line 67):"The INSERT statement conflicted with the FOREIGN KEY constraint
"FK_Question_SurveyTemplate". The conflict occurred in database
"ankietyzacja", table "dbo.SurveyTemplate", column
'id'.
The statement has been terminated.
at System.Data.Common.DbDataAdapter.UpdatedRowStatusErrors(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
at System.Data.Common.DbDataAdapter.UpdatedRowStatus(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping)
at System.Data.Common.DbDataAdapter.UpdateFromDataTable(DataTable dataTable, DataTableMapping tableMapping)
at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable)
at AnkietyzacjaWebService.Service1.createSurveyTemplate(Object[] o) in J:\PL\PAI\AnkietyzacjaWebService\AnkietyzacjaWebServicece\Service1.asmx.cs:line 397"
Could You please tell me what am I missing here ?
Thanks a lot.
This problem is being seen on SQL 2005 SP2 + cumulative update 4
I am currently successfully using the output clause of an insert statement to return the identity values for inserted rows into a table variable
I now need to add an "instead of insert" trigger to the table that is the subject of the insert.
As soon as I add the "instead of insert" trigger, the output clause on the insert statement does not return any data - although the insert completes successfully. As a result I am not able to obtain the identities of the inserted rows
Note that @@identity would return the correct value in the test repro below - but this is not a viable option as the table in question will be merge replicated and @@identity will return the identity value of a replication metadata table rather than the identity of the row inserted into my_table
Note also that in the test repro, the "instead of insert" trigger actually does nothing apart from the default insert, but the real world trigger has additional code.
To run the repro below - select each of the sections below in turn and execute them
1) Create the table
2) Create the trigger
3) Do the insert - note that table variable contains a row with column value zero - it should contain the @@identity value
4) Drop the trigger
5) Re-run the insert from 3) - note that table variable is now correctly populated with the @@identity value in the row
I need the behaviour to be correct when the trigger is present
Any thoughts would be much appreciated
aero1
/************************************************
1) - Create the table
************************************************/
CREATE TABLE [dbo].[my_table](
[my_table_id] [bigint] IDENTITY(1,1) NOT NULL,
[forename] [varchar](100) NULL,
[surname] [varchar](50) NULL,
CONSTRAINT [pk_my_table] PRIMARY KEY NONCLUSTERED
(
[my_table_id] ASC
)WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF, FILLFACTOR = 70) ON [PRIMARY]
)
GO
/************************************************
2) - Create the trigger
************************************************/
CREATE TRIGGER [dbo].[trig_my_table__instead_insert] ON [dbo].[my_table]
INSTEAD OF INSERT
AS
BEGIN
INSERT INTO my_table
(
forename,
surname)
SELECT
forename,
surname
FROM inserted
END
/************************************************
3) - Do the insert
************************************************/
DECLARE @my_insert TABLE( my_table_id bigint )
declare @forename VARCHAR(100)
declare @surname VARCHAR(50)
set @forename = N'john'
set @surname = N'smith'
INSERT INTO my_table (
forename
, surname
)
OUTPUT inserted.my_table_id INTO @my_insert
VALUES( @forename
, @surname
)
select @@identity -- expect this value in @my_insert table
select * from @my_insert -- OK value without trigger - zero with trigger
/************************************************
4) - Drop the trigger
************************************************/
drop trigger [dbo].[trig_my_table__instead_insert]
go
/************************************************
5) - Re-run insert from 3)
************************************************/
-- @my_insert now contains row expected with identity of inserted row
-- i.e. OK
Hi All,
I've looked through the forum hoping I'm not the only one with this issue but alas, I have found nothing so I'm hoping someone out there will give me some assistance.
My problem is the case statement in my Insert Statement. My overall goal is to insert records from one table to another. But I need to be able to assign a specific value to the incoming data and thought the case statement would be the best way of doing it. I must be doing something wrong but I can't seem to see it.
Here is my code:
Insert into myTblA
(TblA_ID,
mycasefield =
case
when mycasefield = 1 then 99861
when mycasefield = 2 then 99862
when mycasefield = 3 then 99863
when mycasefield = 4 then 99864
when mycasefield = 5 then 99865
when mycasefield = 6 then 99866
when mycasefield = 7 then 99867
when mycasefield = 8 then 99868
when mycasefield = 9 then 99855
when mycasefield = 10 then 99839
end,
alt_min,
alt_max,
longitude,
latitude
(
Select MTB.LocationID
MTB.model_ID
MTB.elevation, --alt min
null, --alt max
MTB.longitude, --longitude
MTB.latitude --latitude
from MyTblB MTB
);
The error I'm getting is:
Incorrect syntax near '='.
I have tried various versions of the case statement based on examples I have found but nothing works.
I would greatly appreciate any assistance with this one. I've been smacking my head against the wall for awhile trying to find a solution.
In the below code i want to use select statement for getting customer
address1,customeraddress2,customerphone,customercity,customerstate,customercountry,customerfirstname,customerlastname
from customer table.Rest of the things will be as it is in the following code.How do i do this?
INSERT INTO EMImportListing ("
sql += " CustId,Title,Description,JobCity,JobState,JobPostalCode,JobCountry,URL,Requirements, "
sql += " IsDraft,IsFeatured,IsApproved,"
sql += " Email,OrgName,customerAddress1,customerAddress2,customerCity,customerState,customerPostalCode,
[code]....
I am new to SQL, especially use SQL in VC++ 6.0 framework.
I am told that creating INDEX on field(s) could speed up a query.
if I create a INDEX like the following
<code>
CREATE nonclustered INDEX IX_XYZ on TableA.field1
</code>
Should I use the INDEX name IX_XYZ in some way in the following SELECT statement. Or the following SELECT statement will be carried out automatically based on the INDEX IX_XYZ.
<code>
SELECT * FROM TableA WHERE field1 = xxx
</code>
HELP
Dmitri
According to what I see in BOL, the following should work:
delete
from dbo.tbl1 WITH (INDEX(idx_un01))
where tbl1_no = 1
Yet when I syntax check this I get:
Msg 1069, Level 15, State 1, Line 2
Index hints are only allowed in a FROM clause.
(Please ignore the fact that index hints are unnecessary / a bad idea / etc.)
I have to create a table with a clustered PK on col1, col2, col3 and insert 5.6 million rows. There are only 2 other columns in the table. Does it matter if I create table, insert, create PK or create table with PK then insert?
View 3 Replies View RelatedHello,
View 5 Replies View Relatedfor MS SQL 2000
the following will work if I want to have UNIQUE Users.Name >>
INSERT INTO [Users] (Name)
SELECT Names FROM OtherUsers
where OtherUsers.Names not in (select Name from Users)
but if I have an UNIQUE INDEX on Users
CREATE UNIQUE INDEX [IX_Users] ON [Users] ([Name],[Category]) ON [PRIMARY]
how can I do it ?
INSERT INTO [Users] (Name, Category)
SELECT Names,Categories FROM OtherUsers
where OtherUsers.Names + OtherUsers.Categories not in (select Name, Category from Users) ?
how can I insert it wih an index on 2 or 3 columns ?
thank you for helping
I am using SQL Server2012. Is it possible to insert a new_column to table at 10th of it's column_index ? Ofcourse I can select, but I wish to insert at particular index...Is it possible? Alter table Table1 add New_Column varchar(20) at 10 ??????
View 4 Replies View RelatedHi, I am working on performance issues. We have a database defined as the following. And I would like to know why I am getting the clustered index insert in showplan in profiler for a query?
I have a table with field a,b,c,d,e,f,g,h,,etc. The primary key consists
of a combination of field a and field b, which is a clustered index and
unique.
There is a computed column that is defined as field k001 that
consists of field a and field b combined. This computed
column is not persisted. It is not defined as unique even though
it is unique.
There is another computed column that is defined as field k005 it
consists of field d,e,a,b combined in that order. It is not persisted.
It is also not defined as unique, even though it is unique.
There is a non-clustered index on field k001 called k001_c.
There is a non-clustered index on field k005 called k005_C.
The following cursor is declared.
EXEC SQL
DECLARE C_RANGE CURSOR FOR
SELECT "A"
,"B"
,"C"
,"D"
,"E"
,"F"
,"G"
,"H"
,"I"
,"J"
FROM "TABLE_TEST"
WITH (INDEX(K005_C))
WHERE "K005" >= :K1--AREA
AND "K005" <= :K2--AREA
ORDER BY "K005" ASC
END-EXEC
My question is this. This statement when looked at in profiler does a
clustered index insert when each row is fetched. It shows in the
showplan.xml that this has 60% of the cost involved.
I thought maybe this was because the columns were not persisted.
So I persisted these two columns, (by the way just for other information
there are other computed columns in this table that are not persisted,
and use some of the same original fields). I then defined a temp table
using the same table defination for the original table. I persisted the
two columns, then did a select into the temp table( with identity insert off).
I then deleted the original table, and renamed the temp table to the original table.
I seemed to still get the clustered index insert. I do not remember if
the cost showed up the same.
My question is this. Why am I getting the clustered index insert on
a query?
Thanks, Kathy
Can we use a sql function() in create index as below is giving error , what would be work around if cannt use the function in below scenario
CREATE NONCLUSTERED INDEX [X_ADDRESS_ADDR1_UPPER] ON [dbo].[ADDRESS]
(
UPPER([ADDR_LINE_1]) ASC
)
WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]
GO
I get this message when doing an insert into :
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?
Thanks a lot for any suggestion !
Regards,
Fabianus
my favorit hoster is ASPnix : www.aspnix.com !
I'm quite stuck with this:I have an import table called ReferenceMatchingImport which containsdata that has been sucked from a data submission. The contents ofthis table have to be imported into another table ExternalReferencewhich has various foreign keys.This is simple but one of these keys says that the value inExternalReference.CompanyRef must be in the CompanyReference table.Of course if this is an initial import then it will not be so as partof my script I must insert a new row into CompanyReference andpopulate ExternalReference.CompanyRef with the identity column of thistable.I thought a good idea would be to use an SP which inserts a new rowand returns @@Identity as the value to insert. However this doesn'twork as far as I can tell. Is there a approved way to perform thissort of opperation? My code is below.Thanks.ALTER PROCEDURE SP00ReferenceMatchingImportAS/*Just some integrity checking going on here*/INSERT ExternalReference(ExternalSourceRef,AssetGroupRef,CompanyUnitRef,EntityTypeCode,CompanyRef, --this is the unknown ref which is returned by the spExternalReferenceTypeCode,ExternalReferenceCompanyReferenceMapTypeCode,StartDate,EndDate,LastUpdateBy,LastUpdateDate)SELECT rmi.ExternalDataSourcePropertyRef,rmi.AssetGroup,rmi.CompanyUnit,rmi.EntityType,SP01InsertIPDReference rmi.EntityType, --here I'm trying to run thesp so that I can use the return value as the insert value1,1,GETDATE(),GETDATE(),'RefMatch',GETDATE()FROM ReferenceMatchingImport rmiWHERE rmi.ExternalDataSourcePropertyRef NOT IN (SELECT ExternalSourceRefFROM ExternalReference)
View 3 Replies View RelatedI have a page that has a drop down control that is used to control the items in a FormView. The drop down is bound to one SQLDatasource while the FormView is bound to another SQLDataSource. I've got everything working great. Selecting an item in the drop down reveals the details in the form view. the Form can be opened for editing and deleting. I even have the Insert working. But there lies my problem. Once the Insert is executed I'd like to take the Index value of the recently submitted item and set it to the SelectedIndex of my dropdown. Here is the code for each of the SQL events Sub FormViewUpdated(ByVal sender As Object, ByVal e As FormViewUpdatedEventArgs) Handles FormView1.ItemUpdated
confirmation.Visible = True
confirmation.Text = "<img src=""../img/smiley36.gif""> Your record has been updated."
Dim index As Integer = Me.DropDownList1.SelectedIndex
DropDownList1.DataBind()
Me.DropDownList1.SelectedIndex = index
End Sub
Sub FormViewDeleted(ByVal sender As Object, ByVal e As FormViewDeletedEventArgs) Handles FormView1.ItemDeleted
confirmation.Visible = True
confirmation.Text = "<img src=""../img/smiley36.gif""> Your record has been deleted."
DropDownList1.DataBind()
FormView1.ChangeMode(FormViewMode.ReadOnly)
End Sub
Sub FormViewInserted(ByVal sender As Object, ByVal e As FormViewInsertedEventArgs) Handles FormView1.ItemInserted
confirmation.Visible = True
confirmation.Text = "<img src=""../img/smiley36.gif""> Your record has been inserted."
DropDownList1.DataBind()
End Sub
I would like to do something similar to the Updated event in the Inserted sub. Notice I have a Me.DropDownList.SelectedIndex bit...I'd like to be able to set a variable to the new ID and then set the Me.DropDownList.SelectedIndex to that variable. My stored proc for the Insert reads like
ALTER PROCEDURE dbo.usp_INSERTHelp_Faq
(
@FAQQuestion varchar(500),
@FAQText ntext,
@FAQIndex varchar(500),
@ModifiedBy int,
@Help_FAQID int OUTPUT
)
AS
INSERT INTO Help_FAQ (FAQQuestion, FAQText, FAQIndex,ModifiedBy, Views)
VALUES (@FAQQuestion,@FAQText,@FAQIndex,@ModifiedBy,0)
SELECT @Help_FaqID = @@Identity
RETURN
So, the Stored Proc is set up to return the latest ID. Also, my SQLDataSource for the FormView has an InsertParameter: <asp:Parameter Direction="Output" Name="Help_FAQID" Type="Int32" />
Any thoughts on how to close the loop here? How do I get my hands on the new Help_FAQID?
Hi,
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")
Thanks in advance,
Sebastien Anselmo
how to reduce the cost of clustered index insert ?
View 8 Replies View RelatedI have a query which is primarily a victim of blocking and a blocker itself for other queries. I studied the plan for this and it shows a 42% cost on CI insert operation. The insert is happening on a table (Table A) that has a PK. This PK is not a running number. It is also a business key (primary key) in another master table (Table B).
My understanding is that the cost is heavy because -
1, this PK is not an incremental number. It could be any number not in a sequence.
2. while inserting into CI, there must be a scan happening to find out the location where the index will be inserted.
How can I reduce the cost?
1. Should I go for partitioning of this table Table A? I am trying to do this but I am not able to find any suitable partition key looking at the JOINS and filter clauses where this table is being used in the applicaiton.
2. Should I introduce a surrogate key (running number) as a primary key so that CI is faster ?
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
View 2 Replies View RelatedHi All,I have a database that is serving a web site with reasonably hightraffiic.We're getting errors at certain points where processes are beinglocked. In particular, one of our people has suggested that an updatestatement contained within a stored procedure that uses a wherecondition that only touches on a column that has a clustered primaryindex on it will still cause a table lock.So, for example:UPDATE ORDERS SETprod = @product,val = @valWHERE ordid = @ordidIn this case ordid has a clustered primary index on it.Can anyone tell me if this would be the case, and if there's a way ofensuring that we are only doing a row lock on the record specified inthe where condition?Many, many thanks in advance!Much warmth,Murray
View 1 Replies View Relatedplease explain the differences btween this logical & phisicall operations that we can see therir graphical icons in execution plan tab in Management Studio
thank you in advance
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.
Thank you in advanced,
Pauly C
Hi.
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:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1968856&SiteID=1
But, now I am getting the below error:
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
DBO.SAVEDSEARCHES
CREATE TABLE [dbo].[savedsearches](
[savedsearchesid] [int] IDENTITY(1,1) NOT NULL,
[searchname] [varchar](50) NOT NULL,
[userid] [int] NOT NULL,
[date] [datetime] NULL,
[isdefault] [bit] NULL,
[gender] [char](10) NULL,
[startyear] [varchar](50) NULL,
[endyear] [varchar](50) NULL,
[country] [varchar](50) NULL,
[miles] [int] NULL,
[pictures] [varchar](50) NULL,
[postal] [int] NULL,
[sort] [tinyint] NULL,
[photostring] [varchar](50) NULL,
[orderby] [tinyint] NULL,
CONSTRAINT [PK_SavedSearches] PRIMARY KEY CLUSTERED
(
[userid] ASC,
[searchname] 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
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.
INSERT INTO lastlogin
VALUES (32, CONVERT(VARCHAR(26), GETDATE(), 109), 1, CONVERT(VARCHAR(26), GETDATE(), 109))
DBO.LASTLOGIN
Code Snippet
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.
CREATE TABLE #TestTable
(
Name varchar(50),
Email varchar (40)
)
Insert #TestTable (Name,Email) Values('Tom', 'tom@aol.com')
[Code] .....
I was wondering if any SQL people out there know if i can INSERT INTO 2 tables at the same time? I havent found a yes to the question so i thought i would throw it out there and see what everyone has to say. word
View 3 Replies View RelatedI have put together the following code, but am getting a syntax error on the Insert Into statement. Could someone kindly tell me what I am doing wrong? Thanks 1 Protected Sub SubmitButton2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SubmitButton2.Click2 authAndSaveToDB()3 End Sub4 Private Sub authAndSaveToDB()5 On Error GoTo errhand6 If connectToDB() Then 'connection to database was successful7 'insert candidate in the database
8 insertCandidate(ddlPositions.Text, txtName.Text, txtBio.Text, conn)9 Response.Redirect("FileUpload.aspx")10
11 Else
12 Response.Write("<font color = red><strong>Database connection failure. Please try again in a few minutes or contact system administrator.</strong></font>")13 End If
14 closeDB() 'end the connection to the database
15 Exit Sub
16 errhand:17 Response.Write("<br>ERROR: " & Err.Description & "<br>")18 End Sub19 Private Sub insertCandidate(ByVal strPositions As String, ByVal strCandidate As String, ByVal strBiography As String, ByVal myconn As OleDb.OleDbConnection)20 Dim cmd As OleDb.OleDbCommand21 Dim strSQL As String
22
23 strSQL = "INSERT INTO Position (Positions,Candidate,Biography) VALUES ('" & _
24 strPositions & "'," & _
25 "'" & strCandidate & "'," & _
26 "'" & strBiography & "')"
27 cmd = New OleDb.OleDbCommand(strSQL, myconn)28 cmd.ExecuteNonQuery()29 End Sub30 End Class