Hi Folks,
I would like to create a table with primary key pair:
Key1 : nchar(10)
Key2: nchar(10)
Value: money
That is, Key1 and Key2 are the primary key columns for the table. I would like to think of (Key1='Foo', Key2='Bar') to be the "same" as (Key1='Bar', Key2='Foo'). Is there a way to enforce this as a table constraint, or do I have to enforce this manually in all procedures that modify and read the table?
Thanks!
Adam Cataldo
Executed as user: companyadmin user. Violation of PRIMARY KEY constraint 'PK_tblRMAProduct'. Cannot insert duplicate key in object 'tblRMAProduct'. [SQLSTATE 23000] (Error 2627) The statement has been terminated. [SQLSTATE 01000] (Error 3621). The step failed.
View 1 Replies View RelatedHi,
We will be using SQL Compact Edition in our application. We are doing some tests to make sure that SQL Compact is suitable for our requirments.
Our problem is with Primary keys and how to maintain data integrity since we will have 100+ clients inserting, updating, and synchronizing with SQL Server.
Can we control Identity range?
Shall we use UniqueIdentifires insted of int?
How can we detect errors at the client side? (For example, if two clients are trying to synchronize 2 columns with the same primary key value)
We will use Merge replication.
Thank you
I have a problem that has been frustrating me for a long time, simply because I know this has to be somewhere but I cant seem to find where to toggle this setting.
I have a large number of tables that I regularly send to a remote server using the DTS Export Wizard in SQL Server Management Studio 2005.
Although I have toggled "Enable Identity Insert", as well as "Drop and Recreate Destination Tables", my tables upon completion are missing their primary key constraints, as well as its Identity attribute.
I have to go in manually to each table and set the column that is the PK, and the Identity attributes - all my stored procs break as a result of the missing constraint.
What setting do I need to flag during the DTS Export that will preserve the key values for me on completion?
Ok, so I've broken down and decided to write myself an invoicing
program. I'd like to use GUID fields as the Primary Keys in my
table. Now, I basicly bill for two seperate items:
Deliverables and Services.
So, my Layout's gonna look something like
Create Table Invoice(
ID UniqueIdentifier Primary Key,
-- Other Data
);
Create Deliverable(
ID uniqueidentifier Primary Key,
ParentInvoice uniqueidentifier,
-- Other data);
--...
Im sure there are probems with that as it's written feel free to edify me as to what they are.
my questions are such:
1) Does a uniqueidentifier field automagically get a value?
2) If not how do I generate one in TSQL?
3) If so, what do I use to store my Foreign Keys.
4) How do I declare my Foreign key constraints?
I have table variable in which I am inserting data from sql server database. I have made one of the columns called repaidID a primary key so that a clustered index will be created on the table variable. When I run the stored procedure used to insert the data. I have this error message; Violation of Primary key Constraint. Cannot insert duplicate primary key in object. The value that is causing this error is (128503).
I have queried the repaidid 128503 in the database to see if it is a duplicate but could not find any duplicate. The repaidID is a unique id normally use by my company and does not have duplicates.
How to copy a table from one server to another server with primary and foreign key constraints.
View 5 Replies View RelatedI know this is probably a flick of a switch but I cannot figure out which switch. Setup is SQL Server / Stored Procedures / DAL / BLL(skipped for testing) / PL. The stored procedure queries from only one table and two columns are ignored because they are being phased out. I can run the stored procedure and preview the data in the DAL but when I create a page with an ODS linked to the DAL and a GridView I get this error. I checked every column that does not allow nulls and they all have values. I checked unique columns (ID is the only unique and is Identity=Yes in the table definition). I checked foreign-key columns for values that are not in the foreign table and there are none. Any ideas why do I get this?
Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
Hi,
I am getting the above error when trying to load a report into my Web Application, I have tracked the error down to one specific field in my database. Even though this field is a NVarChar field and is of size 30 it would seem that there is an issue returning the value from the field. I can write it into the database no problems but when I try to get it out of the database it returns the above error.
e.g
MOB 401.908.804 - Fails
0401.907.324 - okay
8239 9082 (pager) - fails
Anyone got an idea on how to fix this????
Regards..
Peter.
Hi,I need to display a dataset where everything is dynamic.e.g. I have a table with columns "Code", "Description" and "Inspected" andanother table with columns "UserCode", "Name", "PostCode" and "Town" etcAnd I need to dislay data like this from a single db proc with parameters:-(TableName, ColumnName, ColumnValue)Procedure called with these parameters (CodeTable, Code, TD001) would returna dataset like this:-----------------------------------|Code | TD001|Description| Printer|Inspected | Y---------------------------------Not----------------------------------|TD001|Printer|Y---------------------------------Procedure called with these parameters (UserTable, UserCode, CP1) wouldreturn a dataset like:----------------------------------|UserCode | CP1|Name | Charles|PostCode | 2000|Town | Sydney---------------------------------Not---------------------------------|CP1| Charles| 2000| Sydney---------------------------------Any ideas how I would code the database proc, I did consider using XML butnot sure.ThanksAJP
View 3 Replies View RelatedHi folks,
I am trying to write a query to get data in pairs, for example, i have data like this:
sr_no week_no
1 24-A
2 24-B
3 24-C
4 25-A
5 25-B
6 26-A
7 26-B
I want to get data in pairs i.e. data for week_no 24-A and 24-B will come togather? is it possible?
Any urgent help will be highly appreicated.
Thanks
I want to store many different types of objects in a single table. Iwas thinking of using the name value pair approach to achieve this.Does anybody have any experience with a such a design?The table might look like thisCREATE TABLE NV (pk int, type int, [name] varchar(100), valuevarchar(100))--Insert a manager - type = 1INSERT INTO NV (pk, type, [name], val)VALUES (11, 1, 'FirstName', 'John')INSERT INTO NV (pk, type, [name], val)VALUES (11, 1, 'LastName', 'Smith')INSERT INTO NV (pk, type, [name], val)VALUES (11, 1, 'Position', 'CEO')--Insert an employee - type = 2INSERT INTO NV (pk, type, [name], val)VALUES (21, 2, 'FirstName', 'Joe')INSERT INTO NV (pk, type, [name], val)VALUES (21, 2, 'LastName', 'Blog')INSERT INTO NV (pk, type, [name], val)VALUES (21, 2, 'Position', 'Developer')--Insert an inventory item - type = 3INSERT INTO NV (type, [name], val)VALUES (13, 3, 'Name', 'Chair')INSERT INTO NV (type, [name], val)VALUES (13, 3, 'Color', 'White')INSERT INTO NV (type, [name], val)VALUES (3, 3, 'Price', '$150')
View 3 Replies View RelatedHi,
I have to log the Details of the incoming xml message into databse.
But the values logged will vary with the message.So I cant fix the mumber of columns.
I thought of using table in which the fields are logged as Key-Value Pairs. The table looks as below.
TransactionID ColumnKey ColumnValue
1111 PONumber 123
1111 Sender xxx
1111 Recever yyy
using dynomic query i was able to get the results as follows
TransactionID PONumber Sender Receiver
1111 123 xxx yyy
Till now every thing was fine. but now i got new requirement where i have to identify each column with its parent. For example if we consider the line items of the PO, table may look like below.
TransactionID ChildKey ChildValue ParantKey ParantValue
1111 PONumber 123 null null
1111 Sender xxx null null
1111 Recever yyy null null
1111 ItemName soap ItemID 123
1111 Quantity 4 ItemID 123
1111 UnitPrice 2.2 ItemID 123
1111 ItemName Brush ItemID 222
1111 Quantity 5 ItemID 222
1111 unitPrice 4.4 ItemID 222
I am unable to design the database which satisfy the requirement of the reporting.
I not even know how to query the data which is logged like this.
Help me by giving the inputs to design databse for the above problem and to query the data .
advance thanks
Srinivasa Mahendrakar
I have a table, gdbdoc, that contains record-key pairs, linking records in another table. There is no significance in the order of the link: if records A and B are linked, then I don't care whether the link is A -> B or B -> A, and my normal query logic is SELECT ... Where DCIindiid = A ... union SELECT ... Where DCILinkid = A(DCIindiid = key1, DCILinkid = Key2)
The link-creation process normally checks whether there is already a link in either direction. Thus before creating a link A->B the logic checks to see whether either the A->B or B->A link record exists, and a new link is not created if the link already exists in either direction. However recently one of my processes bypassed the reverse-link check, and I've ended up with a few hundred cases where there is both an A->B link and a B->A link.
If I run a query: - select gd1.* from gdbdoc as gd1 join gdbdoc as gd2 on gd1.dciindiid = gd2.dcilinkid and gd1.dcilinkid = gd2.dciindiid
this displays all the records where one record links A -> B and there is also another record that links B -> A.
How do I write a query to delete ONE of the pair of duplicate records? I have two problems: -
Problem 1: Table gdbdoc is keyed on (DCIindiid, DCILinkid). Both guids are needed to create a unique key, and the table does not have a single key field. You can't write DELETE gdbdoc where DCIIndiid, DCILinkid IN select gd1.dciindiid, gd1.linkid from gdbdoc as gd1 join gdbdoc as gd2 on gd1.dciindiid = gd2.dcilinkid and gd1.dcilinkid = gd2.dciindiid
as the DELETE ... SELECT ... syntax only seems to support a single returned value.
Problem 2. If we solved problem 1, we would (I think) delete BOTH the A->B link and the B->A link , whereas I only want to delete one of these links.
Afterthought: Problem 2 seems easily solvable: add "Where gd1.DCIindiid < gd1.DCILinkid" to the DELETE ... statement. Although the concept of "<" doesn't really mean anything with a guid, this is accepted by SQL, and halves the number of records returned by the select. Obviously I don't care which of the two links (A->B or B->A) is deleted.
Regards, Robert Barnes
my page suddenly stopped working when I wasn't working on it and it seems to be down to the 'ORDER BY' part of my SQL. I'm here alone as usual and I need someone to glance at the sql strings below. (yes, I do need the select *)
If I run this in SQL Manager it works fine:
SELECT * from dest_search WHERE trip_type like 'Trekking' ORDER BY start_date
if I do the same from my asp page it fails but if I leave out 'ORDER BY start_date' it works.
the error I get is:
Microsoft OLE DB Provider for SQL Server error '80040e21'
Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.
/Newindex/trip_types.asp, line 53
line 53 is the 'desc = oRS...' bizarrely
oRS.Open strSQL, oConn, 2, 3
oRS.moveFirst
Do while not oRS.eof
country = oRS("country")
53---> desc = oRS("description")
url_link = oRS("url_link")
startDate = oRS("start_date")
endDate = oRS("end_date")
trip = oRS("trip_type")
difficulty = oRS("difficulty")
not all the descriptions are filled in (some are null) but that doesn't stop SQL manager from working or unordered results coming up fine in my web page.
any comments gratefully received thanks.
I'm working with a table that I've created called Config which contains key/value pairs used to get and set site-wide settings. I'm now trying to create a web form which updates the table but I'm not sure how to create the most effective UPDATE query.
Table of course takes this form key | value
---------------------------------
config_setting1 | value1
config_setting2 | value2
I'm working with a System.Collections.Specialized.StringDictionary Class object which contains all of the pairs from my webform... anybody have a creative way to build an UPDATE string using this object???
Thanks for any help and suggestions,
ecolner@yahoo.com
I can only do one match at a time -- Like can only do either the sql_statement_(start and end), or sp_statement_(start or end). Is there any way to capture both in the same session? Or since I am adding both the events in the ADD EVENT section, can I query it somehow to get unmatched SP or SQL?
Code:
USE master;
GO
-- Create the Event Session
IF EXISTS(SELECT *
FROM sys.server_event_sessions
WHERE name='TimedOutSQL')
[code]...
my business user want all record where glcode must start with 2 and 4
<sample data
Tran_No
GLCode
abcd123
2123
abcd123
21235
abcd123
4289
[code]....
I am trying to create an exception report that will show the difference between two versions of the same row. (Combination of two different sources in sql, with source 1 having childID = 0 and the other source having childID = 1; parentID is the link between them)
The results are as follows:
ParentID - ChildID - Col1 - Col2 - Col3
1 - 0 - AA - BB - CC
1 - 1 - AA - BF - CC
2 - 0 - GG - NN - TT
2 - 1 - DE - NN - TA
3 - 0 - etc
3 - 1 - etc
4 - etc
How can I render the differences in red in RS?
How can we do pair wise comaprission using Sub query as generally can be done in Oracle?
Thanx
Uma writes "Hi Dear,
I have A Table , Which Primary key consists of 6 columns.
total Number of Columns in the table are 16. Now i Want to Convert my Composite Primary key into simple primary key.there are already 2200 records in the table and no referential integrity (foriegn key ) exist.
may i convert Composite Primary key into simple primary key in thr table like this.
Thanks,
Uma"
Hi all,
Can anyone suggest me on Adding primary key to a table which has already a primary key.
Thanks,
Jeyam
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
We have a table, which has one clustered index and one non clustered index(primary key). I want to drop the existing clustered index and make the primary key as clustered. Is there any easy way to do that. Will Drop_Existing support on this matter?
View 2 Replies View RelatedI'm using MS SQL 2000 with enterprise manager I have a customers table called high_customer, it has a primary key called IDI have an invoices table called high_invoices, it has no primary keys but it does have a column for customer ID.I want to set it so if a customer is deleted from the customers table, any invoices with that customerID are deleted from the invoices table.Do I need to specify a constraint? If so how do I do it in enterprise manager.Thanks
View 1 Replies View RelatedHi,
I have the following problem:
I have a table called Jobs with the fields:
JobNumber, Name, Customer, ...
And a table called Customers with the fields:
ID, Name, Address, ...
Obviously Jobs is linked to Customers with the Customer<->ID fields. I want to set it up so that if a Customer is deleted, then any Jobs that had that customer listed now have the Customer field set to NULL. Can I do this with a constraint, or will I need to use a trigger?
Cheers,Little'un
Hello,
I am not a DBA and I need to do the following.
I have 2 tables A and C and both have a common fileds say emp.Emp is pkey in C .
There can be a record in C but not in A.If a record is inserted in A then it checks for the same employee info in C .If not found it do not allow to insert a record in A.
How to go for it?
Thanks!
Hiya peops!!
Listen i was wondering if anyone could tell me whether they know the correct syntax for creating constraints or where i could find it on the net???
Thanks
Hiya peops
im creating a constraint using enterprise manager for 1 of my tables n was wondering how u constructively create a constraint expression, there is a specific style,right??
Thanks
hi there,
i have added my tables and defined foreig keys and primary keys for my table, but when i try to put the data it gives me some error reagards to parent key..and it wont let me drop the table... can anybody tell me how to drop the foregin key..i have tried (
ALTER TABLE module DROP CONSTRAINT ATTENDANCEID_FK;)
this formula and it wont work,
heres my tables and relationships:
CREATE TABLE ATTENDANCE
(ATTENDANCEID char(4) NOT NULL,
StudID char(4) NOT NULL,
ModuleID char(4) NOT NULL,
Week1 VARCHAR(10),
Week2 VARCHAR(10),
Week3 VARCHAR(10),
Week4 VARCHAR(10),
Week5 VARCHAR(10),
Week6 VARCHAR(10),
PRIMARY KEY (ATTENDANCEID));
ALTER TABLE ATTENDANCE
ADD FOREIGN KEY (studID) REFERENCES student(studID);
ALTER TABLE ATTENDANCE
FOREIGN KEY (moduleID) REFERENCES module(moduleID));
insert into ATTENDANCE values
('F1','A1','E1','Yes','Yes','Yes','Yes','Yes','Yes');
insert into ATTENDANCE values
('F2','A2','E2','Yes','No','Yes','Yes','No','Yes');
insert into ATTENDANCE values
('F3','A3','E2','Yes','Yes','Yes','No','Yes','Yes');
insert into ATTENDANCE values
('F4','A4','E2','Yes','Yes','Yes','Yes','No','Yes');
insert into ATTENDANCE values
('F5','A5','E1''Yes','Yes','No','Yes','Yes','Yes');
insert into ATTENDANCE values
('F6','A6','E2','Yes','Yes','Yes','Yes','Yes','No');
insert into ATTENDANCE values
('F7','A7','E1','Yes','Yes','Yes','Yes','No','No');
insert into ATTENDANCE values
('F8','A8','E2','Yes','Yes','Yes','No','Yes','Yes');
insert into ATTENDANCE values
('F9','A9','E3','Yes','Yes','No','Yes','Yes','Yes');
CREATE TABLE MODULE
(ModuleID char(4) NOT NULL,
ATTENDANCEID char(4) NOT NULL,
ModuleName varchar(45),
ModuleCode varchar(6),
PRIMARY KEY (ModuleID));
ALTER TABLE MODULE
ADD FOREIGN KEY (attendanceID) REFERENCES attendance(attendanceID);
insert into MODULE values
('E1','F1','Workshop Research and Project Implementation','Im3023');
insert into MODULE values
('E2','F2','Advanced Database Development','SD3042');
insert into MODULE values
('E3','F3','Advacned Information Systems Develpment','SD3043');
charles
I am fairly new at SQL and also new to this forum. So I don't know if this topic belongs here or not.
But anyways, I found this tutorial online. However, I am having trouble completing it. Can someone please help me?
Given the following table definitions:
CREATE TABLE USERS
(
USERID CHAR(5) PRIMARY KEY,
NAME VARCHAR(30),
RATING CHAR(1) CHECK (RATING IN (A, B,C,D)
)
CREATE TABLE ITEMS
(
ITEM_NO NUMBER PRIMARY KEY,
DESCRIPTION VARCHAR(50),
OFFERED_BY CHAR(5) REFERENCES USERS(USERID) ON UPDATE CASCADE ON DELETE CASCADE,
START_DATE DATETIME,
END_DATE DATETIME,
RESERVE_PRICE NUMBER
)
CREATE TABLE BIDS
(
USERID CHAR(5) REFERENCES USERS ON UPDATE CASCADE ON DELETE SET NULL,
ITEMNO NUMBER REFERENCES ITEMS(ITEM_NO) ON UPDATE CASCADE ON DELETE CASCADE,
BID NUMBER,
BID_DATE DATETIME,
PRIMARY KEY(USERID,ITEMNO,BID_DATE)
)
Directions: Indicate whether the statement is accepted or rejected; and if accepted indicate its effects. Evaluate each statement INDEPENDENTLY.
1) INSERT INTO ITEMS VALUES(1009, Red Bicycle,U01,1999-01-08, 1999-02-10, 30)
2) UPDATE ITEMS SET ITEMNO=1008 where ITEMNO=1001
3) DELETE FROM ITEMS WHERE ITEMNO=1005
4) INSERT INTO ITEMS VALUES(1010, Green Bicycle,U07,1999-01-08, 1999-02-10, 30)
5) UPDATE BIDS SET ITEMNO=1011 WHERE ITEMNO = 1001
6) DELETE FROM USERS WHERE USERID=U01
7) UPDATE ITEMS SET ITEMNO=1020 WHERE ITEMNO=1001
8) DELETE FROM BIDS WHERE BID > 1001
Thanks. I would greatly appreciate your help.
My table structure is something like this :
ORDER_ITEM (OrderSK, ItemNumber, Qty, ServiceSK, UnitPrice)
SERVICE (ServiceSK, Description, UnitPrice)
How could I modify the database structure to enforce the data constraint that ORDER_ITEM.UnitPrice must be equal to SERVICE.UnitPrice for the corresponding service.
Hi all
I have the following table
CREATE TABLE [dbo].[property_instance] (
[property_instance_id] [int] IDENTITY (1, 1) NOT NULL ,
[application_id] [int] NOT NULL ,
[owner_id] [nvarchar] (100) NOT NULL ,
[property_id] [int] NOT NULL ,
[owner_type_id] [int] NOT NULL ,
[property_value] [ntext] NOT NULL ,
[date_created] [datetime] NOT NULL ,
[date_modified] [datetime] NULL
)
I have created an 'artificial' primary key, property_instance_id. The 'true' primary key is application_id, owner_id, property_id and owner_type_id
In this specific instance
- property_instance_id will never be a foreign key into another table
- queries will generally use application_id, owner_id, property_id and owner_type_id in the WHERE clause when searching for a particular row
- Once inserted, none of the application_id, owner_id, property_id or owner_type_id columns will ever be modified
I generally like to create artificial primary keys whenever the primary key would otherwise consist of more than 2 columns.
What do people think the advantages and disadvantages of each technique are? Do you recommend I go with the existing model, or should I remove the artificial primary key column and just go with a 4 column primary key for this table?
Thanks Matt