How To Drop Foreign Key
Jul 26, 2013I want to delete a table.This table is created with foreign key.How to remove foreign key.
View 3 RepliesI want to delete a table.This table is created with foreign key.How to remove foreign key.
View 3 Replieshi all,
I have a table called suppliers where i type my suppliers details.
I have also a table called supp_corellation in which i have the proffesion of my suppliers.
there is one column in the table of suppliers which it takes data from the table supp_corellation . Is it possible to choose the values from a list instead of typing in my table (lets say drop down list)???
I have to drop foreign key constraint from one table. How can I do that? Is it possible?
Also,
Is it possible to add a foreign key constraint on the table once it has a data?
Kinda new to SQL, using SQL Server 2005.I have some foreign keys in a couple of tables. I need to drop thesetables, but can't since I'll get the error:Msg 3726,Level 16, State 1, Line 1Could not drop object 'Client' because it is referenced by a FOREIGNKEY constraint.I'm not sure how to disable or get rid of these foreign keys so that Ican drop my tables. I tried:ALTER TABLE Client NOCHECK CONSTRAINT ALLAlter Table Client Drop Column Foreign Key Boss_ID;I went into the Object Explorer and deleted the FK lines from eachtable, but still the same error.What am I doing wrong?Thanks for your help.
View 1 Replies View RelatedI have the following tables in an SQL Server database.
Contact
=======
NameID
TitleID
Name
JobTitle
========
TitleID
Title
I'm trying to make a form to add entries to the Contact table that lets me associate a job title to a name by choosing it from a drop down list. I have been able to make it so I get a drop down list of TitleID but I need the Title field displayed. I haven't been able to do it. Does anyone have any tips on how to do this?
I am testing Insert, Update etc. and messing up my database with "dirty" data. Is there a way to temporarily drop FOREIGN KEY constraints to truncate a table after testing without dropping the whole table and rebuilding it?
Newbie
Hello,
I have two tables Person & Location where Location has a primary key LocationId and Person has a foreign key LocationId.
Sometime ago I used the Database Diagrams visual tool of SQL Server Management Studio Express to create the foreign key relationship between the two tables - i.e. "visually" (drawing a line between the PK & FK LocationId elements of both tables).
Time has passed and I recently noticed that, upon retrieving my saved diagram, the foreign key relationship had "fallen off" (i.e. the many-to-one line was no longer showing in the diagram).
After recreating the relationship (redrawing the line) I find that I get an error message when I try to save the diagram:
Post-Save Notifications
[!] Errors were encountered during the save process. Some database objects were not saved.
'Location' table saved successfully
'Person' table
- Unable to create relationship 'FK_Person_Location'.
The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK_Person_Location". The conflict occurred in database "mydb", table "dbo.Location", column 'LocationId'.
When I go back to the object explorer and view the dependencies for the two tables, there is no dependency (between these two tables) revealed. When I try to create the foreign key constraint manually (T-SQL) it again says can't add the constraint. It comes up with an error as follows:
ALTER TABLE Person
ADD FOREIGN KEY (LocationId) REFERENCES Location (LocationId)
Msg 547, Level 16, State 0, Line 2
The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK__Person__LocationId__793DFFAF". The conflict occurred in database "mydb", table "dbo.Location", column 'LocationId'.
(Note: Each time I do this, the 8 hexadecimal character suffix changes.)
When I try to drop the foreign key:
alter table Person
drop constraint FK__Person__LocationId
it comes back with the error:
Msg 3728, Level 16, State 1, Line 2
'FK__Person__LocationId' is not a constraint.
Msg 3727, Level 16, State 0, Line 2
Could not drop constraint. See previous errors.
So it seems that there's some kind of goof up here. Can anybody shed light on this / tell me how to fix it?
Hi,I found this SQL in the news group to drop indexs in a table. I need ascript that will drop all indexes in all user tables of a givendatabase:DECLARE @indexName NVARCHAR(128)DECLARE @dropIndexSql NVARCHAR(4000)DECLARE tableIndexes CURSOR FORSELECT name FROM sysindexesWHERE id = OBJECT_ID(N'F_BI_Registration_Tracking_Summary')AND indid 0AND indid < 255AND INDEXPROPERTY(id, name, 'IsStatistics') = 0OPEN tableIndexesFETCH NEXT FROM tableIndexes INTO @indexNameWHILE @@fetch_status = 0BEGINSET @dropIndexSql = N' DROP INDEXF_BI_Registration_Tracking_Summary.' + @indexNameEXEC sp_executesql @dropIndexSqlFETCH NEXT FROM tableIndexes INTO @indexNameENDCLOSE tableIndexesDEALLOCATE tableIndexesTIARob
View 2 Replies View RelatedHi folks.
Here i have small problem in transactions.I don't know how it is happaning.
Up to my knowldge if you start a transaction in side the transaction if you have DML statements
Those statements only will be effected by rollback or commit but in MS SQL SERVER 7.0 and 6.5
It is rolling back all the commands including DDL witch it shouldn't please let me know on that
If any one can help this please tell me ...........Please............
For Example
begin transaction t1
create table t1
drop table t2
then execute bellow statements
select * from t1
this query gives you table with out data
select * from t2
you will recieve an error that there is no object
but if you rollback
T1 willn't be there in the database
droped table t2 will come back please explain how it can happand.....................
Email Address:
myself@ramkistuff.8m.com
Hello,
I want to make a poll and have to use a foreign key in my database. This is not possible in Web Matrix so I have to use SQL Enterprise Manager. But don't know how. I read the help but can't figure it out. Can someone help me??? Thanks in advance.
Regards,
Roel Alblas
Hi!
Is it possible in SQL 6.5 to create a Foreign Key on a field that
has a datatype of SMALLINT? I have created FK`s with
other datatypes, but it doesn`t seem to work with this particular
datatype. Is there some trick to this?
Thank you for your assistance!
Toni
When you set a foreign key to reference a primary key on another table, does the foreign key automatically update? Can anyone explain just how to make a relational table from just the nuts and bolts SQL statements.
View 1 Replies View RelatedHi there,
I'm trying to make a few tables in SQL (First time user). The tables have been derived from a logical model based around my assignment...
I'm having problem getting two foreign keys in one table in the SQL. I keep getting the duplicate foreign key error...
I'm not sure where i'm going wrong.....
http://img.photobucket.com/albums/v294/Jertsy/Agh.jpg
there’s a pic of my tables.... There are 4 tables, blog, blogger, blog_entry, and comment.. Blog is only table without a FK.
have a look & thanks for any and all help....
Spencer.
Hi Friends,Is there any way to get the table name which is referenced by theforeign keyfor example: consider two table "Staff" and "Department"Staff with following columnsPK_IDFK_DepartmentIDNameAddressDepartment with following columnsPK_DepartmentIDDeptNameActually what i need is: Initially i would be having the table name as"Staff"from Staff table i need to identify that the column FK_DepartmentID isa foreign keyand the primary key is in the Department tablei need to traverse from Staff table and identify that FK_DepartmentIDis a primary key in Department tablethis has to be accomplished by sql query.... probably this could befetched fromData Dictionary but i couldnt find the relationship between the systemtables.ThanksArunDhaJ
View 1 Replies View RelatedI would like to create a foreign key but the Primary table has 2 fields as it Primary Key. Is there a way to create a Foreign Key that links only on one field of the primary key.
Ex: table 1: id int , language char(2), description varchar(100) PK = ID + language
table 2 : id int, idlanguage int PK = id FK (idLanguage refers to id from table 1)
This cause an error because the foreign key does not include all part of the primary key.
Rufen
table1
-------
a1 number(10) PK
b1 varchar2(3)
c1 number(10)
Table2
----------
d1 number(10) PK
b1 varchar2(3)
c1 number(10)
Can I make a Foreign key from Table2(b1,c1) to table1(b1,c1) if b1 in table1 might be null.
When I tried that I got this.
ORA-02270: no matching unique or primary key for this column-list
Hi everyone,
My main table has a column named "customer" which is a foreign key pointed to my secondary table consisted of a column "customer_id".
I wanted to change my secondary table's customer_id's name into another name whereby deleting it and create a new column instead (i dont know another way of changing names by code) but i'm not allowed to do that due to "customer_is"'s being attached to my main table as FK.
Any suggestion how to do it ?
Thanks a lot.
i want to make primary key and foreign key relationship of table A1 and table B1 but A1 exist in database A and B1 exist in database B
column name u can pretain as C1, C2
How can I drop Primary Key? If I do/don't have data in the table.Thanks!
Ravi.
Why can't I drop the database? Is this query correct Drop database databasename?
View 1 Replies View RelatedDear Friends,
i want to drop UDD.which i have used in 1000 of sps and tables. it is impossible to drop all objects and create.so please give any sugessions.
Hi,
I have an sql script, which updates some values by using BIT operations..
ex:
UPDATE table1
SET myValue = myValue & ~mask | (availability - mask)...
Problem is, this returns a value, when written to binary, it's one bit too long!
ex:
0
1
1
1
1
1
(= 62)
which should be:
0
1
1
1
1
0
(=31)
How can I "drop" this last BIT?
(Keep in mind that I store these values as LONGINT's)...
Been fighting with this one all day..
I am deleting a column from a table in code. Before I drop the colum I need to find if the column belongs to a foreign key. I have the names of the foreign keys for the table from sysobjects.How can I determine what columns are part of the foreign key?
View 9 Replies View RelatedJust installed this the Forum starter Kit and am getting this message when I try to add the first threadI'm a bit of a newbie but not only damp behind the earsThe INSERT statement conflicted with the FOREIGN KEY constraint "FK_MembersForums_MemberInfo". The conflict occurred in database "SQL2005_****_*****01", table "dbo.MemberInfo", column 'memberid'.The statement has been terminated. What do I need to do to the SQL Tables in order to get this to work?
View 3 Replies View RelatedHi, i have 3 tables.
Orders: {OrderNr(PK, autonumber), date}
Order_Line: {OrderNr(FK), ItemNr(FK), number}
Items: {ItemNr(PK), Name, ...}
How do I insert a new Order with a new order_line? I get this error: The INSERT statement conflicted with the FOREIGN KEY constraint
I can't figure out how to capture the autogenerated OrderNr.
Can any body tell me how to know to what columns of other table it refers to.
shiva kumar
I have a one to many relationship between two tables. The master table is keyed using an int ID field set to IsIdentity yes and this is the primary key. The field name is ChurchID. Likewise the detail table has such a field as it's primary key and is named ContactID.
I carry the ChurchID field in the detail table and would like to make it the foreign key. I could not find this explained in the two books I have and the help was anything but that )perhaps it's just me afterall).
Well, any help in this matter would be greatly appreciated as I find myself at a standstill until this can be resolved.
Thanks in advance.
When I try to insert a record on my DB (SQL 2005 Express) I get a constraint error. This is my table setup which has been simplified to expose the problem I have:
Categories TABLEint CatId PKvarchar CatName :
Items TABLEint ItemId PKvarchar ItemName :
X_Items_Categoriesint CatIdint ItemId
So basically I have a one-to-many relationship between Items and Categories, in other words each item is associated to one or more categories and this association is done via the X_Items_Categories cross table. On this cross table I set two constraints:
The CatId of each entry in the cross table (X_Items_Categories) must exist in the Category table, and
I am new beginner for SQL .I have requirement of using foreign key in tables I have created earlier.Can anyone tell me the syntax for the same ?
Please help me, Your suggestions are welcome.
I'm trying to enter data into a SqlServer 2005 database programatically. The databases are part of an open source program I have. I'm encountering the following error when I try to enter data into a particular table:The INSERT statement conflicted with the FOREIGN KEY constraint "FK_CMRC_ProductImages_CMRC_Products". The conflict occurred in database "hscom", table "dbo.CSK_Store_Product", column 'productID'. The statement has been terminated. I understand what's happening theoretically, but I don't know where to look for where the constraint is defined, or how to fix it. I don't see FK_CMRC_ProductImages_CMRC_Products as a file name or a stored procedure. Diane
View 3 Replies View Relatedtell me how to add foreign keys in sql 2005 express
View 3 Replies View RelatedHi
Can anyone tell me how I can remove a foreign key in a SQL database?
Thanks in advance
Hi;
I have 2 tables Users and DVDTestResults these tables have a relation over UserID
Users.UserID
DVDTestResults.UserName
both char
But when I try to insert in DVDTestResults I am having an error:
INSERT statement conflicted with COLUMN FOREIGN KEY constraint 'FK_DVDTestResults_Users'. The conflict occurred in database 'Test', table 'Users', column 'UserID'. The statement has been terminated.
can you help me why?
thank you....