We 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 RepliesHi everybody couldn't get through with saving my data on the table with two primary keys...
my table structure is this
pubidintUnchecked (primary key)
pubchar(1)Unchecked
publchar(1)Unchecked
pubcodechar(2)Unchecked (primary key)
a sample data is here
pubid pub publ pubcode
1 a b ab
1 b b bb
2 a b ab
2 b b bb
when i save this table modifying the pubid and pubcode as primary keys the following error displays...
Unable to create index 'PK_PUBS3'.
CREATE UNIQUE INDEX terminated because a duplicate key was found for index ID 1. Most significant primary key is '51'.
Could not create constraint. See previous errors.
The statement has been terminated.
what i understand is that on the primary key duplicates are not allowed how could i allow it?
thanks
I'm trying to modify a specific row in a table.
$paper_id = 2A
$query = "UPDATE book SET paper_id='$paper_id', title='$title'";
I'm getting this error <<query failed: Duplicate entry '2A' for key 'PRIMARY'>>
Structure:
Column: paper_id
Type: Char
Length: 20
Deafult: None
Hi All,
I`m using BCP to import ASCII data text into a table that already has many records. BCP failed because of `Duplicate primary key`.
Now, is there any way using BCP to know precisely which record whose primary key caused that `violation of inserting duplicate key`.
I already used the option -O to output error to a `error.log`, but it doesn`t help much, because that error log contains the same error message mentioned above without telling me exactly which record so that I can pull that `duplicate record` out of my import data file.
TIA and you have a great day.
David Nguyen.
I have one table that stores log messages generated by a web service. I have a second table where I want to store just the distinct messages from the first table. This second table has two columns one for the message and the second for the checksum of the message. The checksum column is the primary key for the table.
My query for populating the second table looks like:
INSERT INTO TransactionMessages ( message, messageHash )
SELECT DISTINCT message, CHECKSUM( message )
FROM Log
WHERE logDate BETWEEN '2008-03-26 00:00:00' AND '2008-03-26 23:59:59'
AND NOT EXISTS (
SELECT * FROM TransactionMessages
WHERE messageHash = CHECKSUM( Log.message ) )
I run this query once per day to insert the new messages from the day before. It fails when a day has two messages that have the same checksum. In this case I would like to ignore the second message and let the query proceed. I tried creating an instead of insert trigger that only inserted unique primary keys. The trigger looks like:
IF( NOT EXISTS(
SELECT TM.messageHash
FROM TransactionMessages TM, inserted I
WHERE TM.messageHash = I.messageHash
) )
BEGIN
INSERT INTO TransactionMessages ( messageHash, message )
SELECT messageHash, message FROM inserted
END
That didn't work. I think the issue is that all the rows get committed to the table at the end of the whole query. That means the trigger cannot match the duplicate primary key because the initial row has not been inserted yet.
Does anyone know the best way to do this?
Thanks for your help,
Drew
'm trying to import a text file but the primary key column contains duplicatres (tunrs out to be the nature of the legacy data). How can I kick out all duplicates except, say, for a single primary key value?
TIA,
Barkingdog
Hello again,
I'm going through my tables and rewriting them so that I can create relationship-based constraints and create foreign keys among my tables. I didn't have a problem with a few of the tables but I seem to have come across a slightly confusing hiccup.
Here's the query for my Classes table:
Code:
CREATE TABLE Classes
(
class_id
INT
IDENTITY
PRIMARY KEY
NOT NULL,
teacher_id
INT
NOT NULL,
class_title
VARCHAR(50)
NOT NULL,
class_grade
SMALLINT
NOT NULL
DEFAULT 6,
class_tardies
SMALLINT
NOT NULL
DEFAULT 0,
class_absences
SMALLINT
NOT NULL
DEFAULT 0,
CONSTRAINT Teacher_instructs_ClassFKIndex1 FOREIGN KEY (teacher_id)
REFERENCES Users (user_id)
)
This statement runs without problems and I Create the relationship with my Users table just fine, having renamed it to teacher_id. I have a 1:n relationship between users and tables AND an n:m relationship because a user can be a student or a teacher, the difference is one field, user_type, which denotes what type of user a person is. In any case, the relationship that's 1:n from users to classes is that of the teacher instructing the class. The problem exists when I run my query for the intermediary table between the class and the gradebook:
Code:
CREATE TABLE Classes_have_Grades
(
class_id
INT
PRIMARY KEY
NOT NULL,
teacher_id
INT
NOT NULL,
grade_id
INT
NOT NULL,
CONSTRAINT Grades_for_ClassesFKIndex1 FOREIGN KEY (grade_id)
REFERENCES Grades (grade_id),
CONSTRAINT Classes_have_gradesFKIndex2 FOREIGN KEY (class_id, teacher_id)
REFERENCES Classes (class_id, teacher_id)
)
Query Analyzer spits out: Quote: Originally Posted by Query Analyzer There are no primary or candidate keys in the referenced table 'Classes' that match the referencing column list in the foreign key 'Classes_have_gradesFKIndex2'. Now, I know in SQL Server 2000 you can only have one primary key. Does that mean I can have a multi-columned Primary key (which is in fact what I would like) or does that mean that just one field can be a primary key and that a table can have only the one primary key?
In addition, what is a "candidate" key? Will making the other fields "Candidate" keys solve my problem?
Thank you for your assistance.
Hi,
I have recently been looking at a database and wondered if anyone can tell me what the advantages are supporting a unique collumn, which can essentially be seen as the primary key, with an identity seed integer primary key.
For example:
id [unique integer auto incremented primary key - not null],
ClientCode [unique index varchar - not null],
name [varchar null],
surname [varchar null]
isn't it just better to use ClientCode as the primary key straight of because when one references the above table, it can be done easier with the ClientCode since you dont have to do a lookup on the ClientCode everytime.
Regards
Mike
Hi,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 RelatedI have a table fields Register_date, Std_ID, course, version, CourseLearningDays, Batch_Time and Trainer_IDHOw to make Register_date and Batch_Time as primary key in the table.. What are the necessary datatype for these two fields.And one more do we have datatype called date and time in MS SQL Server...
View 1 Replies View RelatedI have two tables:
tbl_Vehicles (primary table)
tbl_DealerFeed_temp (temporary table)
I load values from a TXT file into the temporary table. From there, I figure out which records are new and need to be added to the primary table, and which records are duplicates, and need to a) update the primary table and b) be deleted from the temporary table.Basically, I need to write a SQL statement to grab the records that exist in BOTH tables based upon two primary criteria:
d_id in temporary table = d_id in primary table
df_t_v_stock_number in temporary table = v_stock_number in primary table
There are several fields that must be updated if the d_id and v_stock_number match:
v_price
v_internet_price
v_other_price
v_mileage
Hi,
I am trying to execute following sql script in sql-server 2000 query analyzer
CREATE TABLE user_courses (user_id varchar(30) NOT NULL PRIMARY KEY,
course_id varchar(10) NOT NULL PRIMARY KEY)
Its give's me following error :-
Cannot specify multiple primary key constraint
Hence I am not able to ceate table with multiple primary keys. So can any one tell me how to get this done?.
Secondly, Primary key must be unique i.e duplicate values are not allowed in P.K field. But in this case since I am declaring two fileds as primary keys.
Will it allow me to have following records in the user_courses table?
user_id(P.K) course_id(P.K)
bob CRS235
alice CRS235
Tim CRS235
tom CRS635
So, if we consider both the fields as primary keys together than I am not voilating Uniqueness constraint. But, if I look at course_id alone then I am voilating uniqeness property?
Thanks,
I've attempted to identify a primary and foreign key in these two tables, but I am getting a bunch of errors re duplicate keys and column names needing to be unique.Perhaps the primary and foreign key I have identified don't meet the criteria?
CREATE TABLE StockNames
(
-- Added Primary key to [stock_symbol]
[stock_symbol] VARCHAR(5) NOT NULL CONSTRAINT PK_stock_symbol PRIMARY KEY,
[stock_name] VARCHAR(150) NOT NULL,
[stock_exchange] VARCHAR(50) NOT NULL,
[code].....
what the best practice is for creating indexes on columns that are foreign keys to the primary keys of other tables. For example:
[Schools] [Students]
---------------- -----------------
| SchoolId PK|<-. | StudentId PK|
| SchoolName | '--| SchoolId |
---------------- | StudentName |
-----------------
The foreign key above is as:
ALTER TABLE [Students] WITH CHECK ADD CONSTRAINT [FK_Students_Schools]
FOREIGN KEY([SchoolId]) REFERENCES [Schools] ([SchoolId])
What kind of index would ensure best performance for INSERTs/UPDATEs, so that SQL Server can most efficiently check the FK constraints? Would it be simply:
CREATE INDEX IX_Students_SchlId ON Students (SchoolId)
Or
CREATE INDEX IX_Students_SchlId ON Students (SchoolId, StudentId)
In other words, what's best practice for adding an index which best supports a Foreign Key constraint?
Pls let me know How I generate script for All primary keys and foreign keys in a table. Thereafter that can be used to add primary keys and foreign keys in another databse with same structure.
Also how I script default and other constraints of a table?
Can somebody explain to me how to best do inserts where you have primary keys and foreign keys.l'm battling.
Is there an article on primary keys/Pk ?
Hi all,
I use the following 3 sets of sql code in SQL Server Management Studio Express (SSMSE) to import the csv data/files to 3 dbo.Tables via CREATE TABLE & BUKL INSERT operations:
-- ImportCSVprojects.sql --
USE ChemDatabase
GO
CREATE TABLE Projects
(
ProjectID int,
ProjectName nvarchar(25),
LabName nvarchar(25)
);
BULK INSERT dbo.Projects
FROM 'c:myfileProjects.csv'
WITH
(
FIELDTERMINATOR = ',',
ROWTERMINATOR = ''
)
GO
=======================================
-- ImportCSVsamples.sql --
USE ChemDatabase
GO
CREATE TABLE Samples
(
SampleID int,
SampleName nvarchar(25),
Matrix nvarchar(25),
SampleType nvarchar(25),
ChemGroup nvarchar(25),
ProjectID int
);
BULK INSERT dbo.Samples
FROM 'c:myfileSamples.csv'
WITH
(
FIELDTERMINATOR = ',',
ROWTERMINATOR = ''
)
GO
=========================================
-- ImportCSVtestResult.sql --
USE ChemDatabase
GO
CREATE TABLE TestResults
(
AnalyteID int,
AnalyteName nvarchar(25),
Result decimal(9,3),
UnitForConc nvarchar(25),
SampleID int
);
BULK INSERT dbo.TestResults
FROM 'c:myfileLabTests.csv'
WITH
(
FIELDTERMINATOR = ',',
ROWTERMINATOR = ''
)
GO
========================================
The 3 csv files were successfully imported into the ChemDatabase of my SSMSE.
2 questions to ask:
(1) How can I designate the Primary and Foreign Keys to these 3 dbo Tables?
Should I do this "designate" thing after the 3 dbo Tables are done or during the "Importing" period?
(2) How can I set up the relationships among these 3 dbo Tables?
Please help and advise.
Thanks in advance,
Scott Chang
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
How can i keep only one record from duplicate entry.
Example
COLUMN1COLUMN2COLUMN3COLUMN4
AAA121-12
AAA121-13
AAA121-14
Here i want to keep only the top record and want to delete other 2 rows.
Hi,
I want to know the different sources, mediums and ways using which the duplicate recoprds or adta can make an entry in our database tables. I found 4 ways for this from many articles on net that are as follows:
Duplicate data might arrive at your database via an interface to another system
Data is loaded into table from other sources because during data loads, the integrity constraints are disabled
Merging data from disparate systems
Inheriting a poorly designed databaseBut is there any other ways also present????? Please tell me???
Thanks,
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 }
I am wanting to create a query so that I can combine each of the found duplicates into one entry.
An example of this is:
Name |ID |Tag |Address |carNum
-------------------------------------------------------
Bob Barker |2054| 52377 |235 Some road |9874
Bill Gates |5630| 69471 |014 Washington Rd. |3700
Bob Barker |2054| 97011 |235 Some road |9874
Bob Barker |2054| 40019 |235 Some road |9874
Steve Jobs |8501| 73051 |100 Infinity St. |4901
John Doe |7149| 86740 |7105 Bull Rd. |9282
Bill Gates |5630| 55970 |014 Washington Rd. |3700
Tim Boons |6370| 60701 |852 Mnt. Creek Rd. |7059
In the example above, Bob Barker and Bill gates are both in the database more than once so I would like the output to be the following:
Bob Barker |2054|52377/97011/40019|235 Some road |9874
Bill Gates |5630|69471/55970 |014 Washington Rd.|3700
Steve Jobs |8501|73051 |100 Infinity St. |4901
John Doe |7149|86740 |7105 Bull Rd. |9282
Tim Boons |6370|60701 |852 Mnt. Creek Rd. |7059
Notice how Bob Barker & Bill Gates appends the tag row (the duplicated data) into one row instead of having multiple rows. This is because I do not want to have to check the previous ID and see if it matches the current id and append to the data.
I have tested the code below to remove duplicate table entries based on the field IntOOS. This code works; however, I want to ensure I am removing the oldest entries and keeping the most recent entry. The field to key on this would be something like Max(ID). What would be the best way to ensure I keep the most recent table entry?
/*** Removes duplicate rows from ampfm.rpt_AdtVisitDiag table
by Chuck King 20070928
***/
;WITH CTE
as
(
SELECT
ROW_NUMBER() OVER (Partition By IntOOS Order BY IntOOS) AS ROWID
,DischDate
,AdmDiagCode
,ID
,AdmDiagCodeDesc
,AdmittingDiagnosis
,AnyDx
,DischDx
,ECode
,IntOOS
,PrinDxAnesDesc
,PrinDxAnesInd
,PrinDxCode
,PrinDxCondDesc
,PrinDxCondInd
,PrinDxDesc
,PrinDxEqualsAdmDxYnu
,SecDx10AnesDesc
,SecDx10AnesInd
,SecDx10Code
,SecDx10CondDesc
,SecDx10CondInd
,SecDx10Description
,SecDx11AnesDesc
,SecDx11AnesInd
,SecDx11Code
,SecDx11CondDesc
,SecDx11CondInd
,SecDx11Description
,SecDx12AnesDesc
,SecDx12AnesInd
,SecDx12Code
,SecDx12CondDesc
,SecDx12CondInd
,SecDx12Description
,SecDx13AnesDesc
,SecDx13AnesInd
,SecDx13Code
,SecDx13CondDesc
,SecDx13CondInd
,SecDx13Description
,SecDx14AnesDesc
,SecDx14AnesInd
,SecDx14Code
,SecDx14CondDesc
,SecDx14CondInd
,SecDx14Description
,SecDx15Code
,SecDx15Description
,SecDx1AnesDesc
,SecDx1AnesInd
,SecDx1Code
,SecDx1CondDesc
,SecDx1CondInd
,SecDx1Description
,SecDx2AnesDesc
,SecDx2AnesInd
,SecDx2Code
,SecDx2CondDesc
,SecDx2CondInd
,SecDx2Description
,SecDx3AnesDesc
,SecDx3AnesInd
,SecDx3Code
,SecDx3CondDesc
,SecDx3CondInd
,SecDx3Description
,SecDx4AnesDesc
,SecDx4AnesInd
,SecDx4Code
,SecDx4CondDesc
,SecDx4CondInd
,SecDx4Description
,SecDx5AnesDesc
,SecDx5AnesInd
,SecDx5Code
,SecDx5CondDesc
,SecDx5CondInd
,SecDx5Description
,SecDx6AnesDesc
,SecDx6AnesInd
,SecDx6Code
,SecDx6CondDesc
,SecDx6CondInd
,SecDx6Description
,SecDx7AnesDesc
,SecDx7AnesInd
,SecDx7Code
,SecDx7CondDesc
,SecDx7CondInd
,SecDx7Description
,SecDx8AnesDesc
,SecDx8AnesInd
,SecDx8Code
,SecDx8CondDesc
,SecDx8CondInd
,SecDx8Description
,SecDx9AnesDesc
,SecDx9AnesInd
,SecDx9Code
,SecDx9CondDesc
,SecDx9CondInd
,SecDx9Description
,VisitTypeCode
,accountnumber
,DischVisitTypeCode
FROM ampfm.rpt_AdtVisitDiag
)
--Select * From CTE
Delete From CTE Where ROWID > 1
I have a form view that I am using to insert new data into a sql express database and would like to find a way to avoid attempting to insert a record if the key already exists. is there a way to do this with the formview insert command. Everything works great until I try to add a record with an already existing value in the unique key field, then it breaks.
View 1 Replies View RelatedHello All,
I am using the Web Site Administration Tool with the ASP.NET login controls to create/manage user logins & roles for my site.
I have exported the ASPNETDB.MDF into my SQL Database ready to use with my app. The problem that I'm having is that whenever I add a user, using either the Web Site Administration Tool or the Classes available in the code-behind. The entry is doubled up in the database.
This is not a problem when logging on....however, when it comes to deleting a user it will only take one of the entries out and leave the duplicate in there. So if the administrator has deleted a user from the app and then tried to create another one with the same UserName (Which whomever is well within his/her rights to be able to do), they cannot because the entry which has "stay behind" in the database conflicts with the entry.
Any help on this matter would be greatly apprieciated. If any more info on this matter is required please ask (It was quite hard to try and explain this :-)
Hi!
I am new .. very grateful for some advice. How do I eliminate duplicate ref keys Or should I have cache mode PARTIAL?
[Data Conversion [4910]] Error: Data conversion failed while converting column "salesperson_id" (88) to column "Copy of salesperson_id" (4929). The conversion returned status value 6 and status text "Conversion failed because the data value overflowed the specified type.".
[Lookup [3882]] Warning: The Lookup transformation encountered duplicate reference key values when caching reference data. The Lookup transformation found duplicate key values when caching metadata in PreExecute. This error occurs in Full Cache mode only. Either remove the duplicate key values, or change the cache mode to PARTIAL or NO_CACHE.
Hello,There is a program which performs some scripted actions via ODBC on tablesin some database on mssql 2000. Sometimes that program tries to insertrecord with key that is already present in the database. The error comes upand the program stops.Is there any way to globally configure the database or the whole mssqlserver to ignore such attempts and let the script continue without any errorwhen the script tries to insert duplicate-key records?Thank you for any suggestions.Pawel Banys
View 6 Replies View RelatedHi all,
SQL server allows to create as many as foreign key constraints on a same table for a same column.
Will this affect the design or performance in anyway ?
Naming the constraint would be a good way to avoid this.But in case if someone has already created, How do I remove the existing duplicate keys ?
======================
For Example , I have 2 tables Author and Book. I could execute the below query n times and create as many as foreign keys I want.
ALTER TABLE Books
ADD
FOREIGN KEY (AuthorID)
REFERENCES Authors (AuthorID)
======================
Thanks is advance,
DBAnalyst
I have a large table that consists of the columns zip, state, city, county. The primary
key "zip" has duplicates but the rows are unique.
How do I filter out only the duplicate zips. So in effect I only have one row per unique key.
Randy Garland
if you just want a list of all rows with duplicate zipcodes then ...
SELECT * FROM TableName WHERE zip IN ( SELECT zip FROM TableName
GROUP BY zip HAVING COUNT(*)>1 )
Duncan
Duncan, I tried this but it does not return one row per key.
Randy Garland
I'm trying to merge two Access databases into one SQL server database. I have 3 tables that are all related with primary and foreign keys.
When I try to import my second set of 3 tables I get errors about the keys already existing in the database. Is there any way to force SQL server to assign new keys while preserving my existing relationships? Thanks!
Hi
i tried the following query and able to get the list of foreign keys with column names as well as referred tables and referenced column
select parent_column_id as 'child Column',object_name(constraint_object_id)as 'FK Name',object_name(parent_object_id) as 'parent table',name,object_name(referenced_object_id)as 'referenced table',referenced_column_id
from sys.foreign_key_columns inner join sys.columns on (parent_column_id = column_id and parent_object_id=object_id)
Order by object_name(parent_object_id) asc
but i am not able to get the fks created more than once on same column refering to same pk
Thanks in Advance
Yet another simple query that is eluding me. I need to find records in a table that have the same first name and last name. Because the table has a primaty key, these people were entered twice or they share the same first and last name.
How could you query this:
ID fname lname
10001 Bill Jones
10002 Joe Smith
10003 Sue Jenkins
10004 John Sanders
10005 Joe Smith
10006 Harrold Simpson
10007 Sue Jenkins
10008 Sam Worden
and get a result set of this:
ID fname lname
10002 Joe Smith
10005 Joe Smith
10003 Sue Jenkins
10007 Sue Jenkins
"Violation of PRIMARY KEY of restriction 'PK_Approve_Overtime'. The overlapping key cannot be inserted in object 'Dbo.Approve_Overtime'. The statement was ended."
can soemone explain to me why i have this kind of error?
i have this two tables. approve_overtime table has a primary key id_no and application_input table with a primary key of id_no!
all the values from of application_input will be stored also in approve_overtime.
sometimes the datas can be stored.sometimes it cannot and produces an error!
what do u think?
hmmm pls help!