Is there a way to see the locks associated with a delete statement on a table (tab1) that has 5 or 6 Foreign key relationships. Trying to understand the impact of the delete on concurrency There are several delete deadlocks on one of the foreign key tables (tab2) and the system does not delete from the table (tab2) that is throwing the delete deadlock error. Wondering about the impact of foreign keys on deletes on Tab1 on Tab2.
Didn't see anything in query analyzer that would show the actual locks. It seems to have scans or such but no lock levels etc are shown.
Does anyone have any knowledge of how to see the actual locks thrown by a given statement. The delete on Tab1 statement is very quick so using EM has proved fruitless.
Background: Am working on completing an ORM that can not only handles CRUD actions -- but that can also updates the structure of a table transparently when the class defs change. Reason for this is that I can't get the SQL scripts that would work for updating a software on SqlServer to be portable to other DBMS systems. Doing it by code, rather than SQL batch has a chance of making cross-platform, updateable, software...
Anyway, because it needs to be cross-DBMS capable, the constraints are that the system used must work for the lowest common denominator....ie, a 'recipe' of steps that will work on all DBMS's.
The Problem: There might be simpler ways to do this with SqlServer (all ears :-) - just in case I can't make it cross platform right now) but, with simplistic DBMS's (SqlLite, etc) there is no way to ALTER table once formed: one has to COPY the Table to a new TMP name, adding a Column in the process, then delete the original, then rename the TMP to the original name.
This appears possible in SqlServer too --...as long as there are no CASCADE operations. Truncate table doesn't seem to be the solution, nor drop, as they all seem to trigger a Cascade delete in the Foreign Table.
So -- please correct me if I am wrong here -- it appears that the operations would be along the lines of: a) Remove the Foreign Key references b) Copy the table structure, and make a new temp table, adding the column c) Copy the data over d) Add the FK relations, that used to be in the first table, to the new table e) Delete the original f) Done?
The questions are: a) How does one alter a table to REMOVE the Foreign Key References part, if it has no 'name'. b) Anyone know of a good clean way to get, and save these constraints to reapply them to the new table. Hopefully with some cross platform ADO.NET solution? GetSchema etc appears to me to be very dbms dependant? c) ANY and all tips on things I might run into later that I have not mentioned, are also greatly appreciated.
Hi, How do I delete data which is a Foreign Key in another table? For example; string query = "DELETE * from user_details WHERE user_ID = '" +userID.Text+ "'; The user_ID is the Primary Key in the user_details table and also a Foreign Key in other tables. Thank you. (:
I have a SQL Mobile DB that I am having problems with deletes cascading via foreign keys to delete all child records. The DB is on a WIndows CE5 device that is running a C#.net application.
The are three tables in my DB that relate to this issue (Tests, TestRawInfo, and TestRawData). The Tests table is the main table. TestRawInfo is a child table of Tests and has a foreign key defined that references the Tests primary key (the relationship is 1:1 with the Tests table). TestRawData is a child table of TestRawInfo and has a foreign key defined that references the TestRawInfo primary key (The relationship is 1:many with the TestRawInfo table). All foreign keys are defined with a Cascade on delete. When I delete one or more records from the Tests table I expect the delete to cascade so that all child records are also deleted. Not all the data gets deleted from the TestRawData table, this results in orphan records. I only see a failure however the next time I attempt to compact the database.
Interestingly I can reproduce the problem by opening my Mobile DB in SQL 2005 on my Desktop and deleting data from the Tests table. If however, I add additional records to these tables through SQL 2005 before attempting to delete, the delete works as expected.
Do you have any ideas on what is going on here? Has any one else reported a similar issue? My current work around is to delete data directly from child tables and not rely on the foreign keys to cascade the deletes.
I am looking to delete a single row from a relatively small table. Unfortunately, there is a foreign key relationship between this table and a much much larger table. The checking of this foreign key when I am deleting this row seems to significantly impact the performance of the operation. Previously there was an index on this larger table that helped this query run. This index has been dropped to improve the performance of a more frequently executed operation.
Is there a way I can use a hint or something to stop SQL checking this foreign key when deleting the row? I am certain that there are no associated rows in the larger table.
I have read elsewhere that I could disable the foreign key, perform the delete, then enable the foreign key. This delete statement is not a one off process and could happen in the normal operation of the application so I don't really know what the implications of doing this are.
I have a table that contains two foreign keys of two different tables. I want to build a relationship so that when either primary keys deleted in the two tables, the record in the table should be deleted. But, SQL Server does not allow me to save the relationship, it complains that the circling delete might exist. I do not know why, how can I solve this?
Table A: ID ProductID <foreign key> CustomerID <foreign key>
Table Product ProductID <primary key>
Table Customer CustomerID <primary key>
I want to cascade delete the record in Table A when either the ProductID is deleted from Product table or the CustomerID is deleted from Customer table.
I'm trying to create relational database with some triggers in SQL Server 7.0, but it doesn't work as expected. Let's say that I have 'Office' database with two tables, 'Users' and 'UserRights' (userRights table should have much more rights, but that's not relevant for this problem):
CREATE TABLE [Users] ( [FS_Username] [nvarchar] (8) NOT NULL , [FS_Password] [nvarchar] (32) NOT NULL , CONSTRAINT [PK_Users] PRIMARY KEY NONCLUSTERED ( [FS_Username] ) ON [PRIMARY] ) ON [PRIMARY] GO
CREATE TABLE [UserRights] ( [FS_Username] [nvarchar] (8) NOT NULL , [FI_UserType] [int] NOT NULL CONSTRAINT [DF_UserRights_FI_UserType] DEFAULT (1), [FI_AllowLogin] [int] NOT NULL CONSTRAINT [DF_UserRights_FI_AllowLogin] DEFAULT (1), CONSTRAINT [PK_UserRights] PRIMARY KEY NONCLUSTERED ( [FS_Username] ) ON [PRIMARY] , CONSTRAINT [FK_UserRights_Users] FOREIGN KEY ( [FS_Username] ) REFERENCES [Users] ( [FS_Username] ) ) ON [PRIMARY] GO
Foreign Key CONSTRAIN above is created by adding both tables to the diagram and defining relationship between these two tables FS_Username field, where 'Enable relationship for INSERT and UPDATE' option is turned ON. You can easily see this if you create diagram youself and insert these two tables in it. Next to this, I created two triggers that should handle inserting/deleting rows in UserRights table as consequence of inserting/deleting rows in Users table:
CREATE TRIGGER InsertUserRights ON Users FOR INSERT AS BEGIN INSERT INTO UserRights (FS_Username) (SELECT FS_Username FROM Inserted) END
CREATE TRIGGER DeleteUserRights ON Users FOR DELETE AS BEGIN DELETE UserRights WHERE FS_Username IN (SELECT FS_Username FROM Users) END
Now, when (manually) I insert row in Users table, UserRights table gets updated accordingly. HOWEVER, when I try to delete one or more entries from Users table, I get error report. For example, if you try to execute following two commands:
Insert Into Users (FS_Username, FS_Password) VALUES ('John', 's')
Delete from Users
... first command will succede, but second one will fail with message:
DELETE statement conflicted with COLUMN REFERENCE constraint 'FK_UserRights_Users'. The conflict occurred in database 'Office', table 'UserRights', column 'FS_Username'. The statement has been terminated.
Does anyone know how to resolve this problem without loosing constrains and triggers ? (If I turn off 'Enable relationship for INSERT and UPDATE' option for relationship, things will work fine, but than I can make inconsistent data in UserRights table).
How to delete records from multiple tables if main table’s entity is deleted as constraints is applied on all..There is this main table called Organization or TblOrganization.and this organization have branches which are in Brach table called tblBranch and this branch have multiple applications let say tblApplication and these application are used by multiple users called tblUsers.What I want is: when I delete the Organization All branches, application and users related to it must be deleted also.How I can apply that on a button click in asp.net web forms..Right now this is my delete function which is very simple
Public void Delete(int? id){ var str=”DELETE FROM tblOrganization WHERE organizationId=”+ id ; } And My tables LOOK LIKE this CREATE TABLE tblOrganization ( OrganizationId int, OrganizationName varchar(255)
I need to delete records from a table (Table1) which has a foreign key column in a related table (Table2).
Table1 columns are: table1Id; Name. Table2 columns include Table2.table1Id which is the foreign key to Table1.
What is the syntax to delete records from Table1 using Table1.Name='some name' and remove any records in Table2 that have Table2.table1Id equal to Table1.table1Id?
I need to implement my cascading deletes on a SQL database. Is it better (performance/reliablility-wise) to use the Foreign Key Cascading Deletes or to just write my own triggers to do the deletes?I was hoping someone had experimented and found which works best.
I have some simple files but they are failing because the delete history task is failing as it is looking for files in a non existent directory.
It is looking for files in C:Program FilesMicrosoft SQL ServerMSSQL10_50.INSTANCEMSSQLLog whereas it should be looking in C:Program FilesMicrosoft SQL ServerMSSQL10_50.MSSQLSERVERMSSQLLog
how I can get this corrected so I can get the Maintenance Plans to run correctly.
I have tried deleting and recreating the Plan but to no avail
I am using Master Data Service for couple of months now. I can load, update, merge and soft delete data in MDS. Occasionally we even have to hard delete data from MDS. If we keep on soft deleting records in a MDS table eventually there will be huge number of soft deleted records. Is there an easy way to hard delete all the soft deleted records from all MDS tables in a specific Model.
I am having great difficulty with cascading deletes, delete triggers and referential integrity.
The database is in First Normal Form.
I have some tables that are child tables with two foreign keyes to two different parent tables, for example:
Table A / Table B Table C / Table D
So if I try to turn on cascading deletes for A/B, A/C, B/D and C/D relationships, I get an error that I cannot have cascading delete because it would create multiple cascade paths. I do understand why this is happening. If I delete a row in Table A, I want it to delete child rows in Table B and table C, and then child rows in table D as well. But if I delete a row in Table C, I want it to delete child rows in Table D, and if I delete a row in Table B, I want it to also delete child rows in Table D.
SQL sees this as cyclical, because if I delete a row in table A, both table B and table C would try to delete their child rows in table D.
Ok, so I thought, no biggie, I'll just use delete triggers. So I created delete triggers that will delete child rows in table B and table C when deleting a row in table A. Then I created triggers in both Table B and Table C that would delete child rows in Table D.
When I try to delete a row in table A, B or C, I get the error "Delete Statement Conflicted with COLUMN REFERENCE". This does not make sense to me, can anyone explain? I have a trigger in place that should be deleting the child rows before it attempts to delete the parent row...isn't that the whole point of delete triggers?????
This is an example of my delete trigger:
CREATE TRIGGER [DeleteA] ON A FOR DELETE AS Delete from B where MeetingID = ID; Delete from C where MeetingID = ID;
And then Table B and C both have delete triggers to delete child rows in table D. But it never gets to that point, none of the triggers execute because the above error happens first.
So if I then go into the relationships, and deselect the option for "Enforce relationship for INSERTs and UPDATEs" these triggers all work just fine. Only problem is that now I have no referential integrity and I can simply create unrestrained child rows that do not reference actual foreign keys in the parent table.
So the question is, how do I maintain referential integrity and also have the database delete child rows, keeping in mind that the cascading deletes will not work because of the multiple cascade paths (which are certainly required).
I'm trying to clean up a database design and I'm in a situation to where two tables need a FK but since it didn't exist before there are orphaned records.
Tables are:
Brokers and it's PK is BID
The 2nd table is Broker_Rates which also has a BID table.
I'm trying to figure out a t-sql statement that will parse through all the recrods in the Broker_Rates table and delete the record if there isn't a match for the BID record in the brokers table.
I know this isn't correct syntax but should hopefully clear up what I'm asking
this is my Delete Query NO 1 alter table ZT_Master disable trigger All Delete ZT_Master WHERE TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0) alter table ZT_Master enable trigger All
I have troble in Delete Query No 2 here is a select statemnt , I need to delete them select d.* from ZT_Master m, ZT_Detail d where (m.Prikey=d.MasterKey) And m.TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND m.TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0) I tried modified it as below delete d.* from ZT_Master m, ZT_Detail d where (m.Prikey=d.MasterKey) And m.TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND m.TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0) but this doesn't works..
can you please help? and can I combine these 2 SQL Query into one Sql Query? thank you
I'm using SqlDataSource and an Access database. Let's say I got two tables:user: userID, usernamemessage: userID, messagetextLet's say a user can register on my website, and leave several messages there. I have an admin page where I can select a user and delete all of his messages just by clicking one button.What would be the best (and easiest) way to make this?Here's my suggestion:I have made a "delete query" (with userID as parameter) in MS Access. It deletes all messages of a user when I type in the userID and click ok.Would it be possible to do this on my ASP.net page? If yes, what would the script look like?(yes, it is a newbie question)
The requirement is: I should allow single row delete from a table but not bulk delete. An audit table should get updated if there is any single delete or single update. So I wrote the triggers as follows: for single and bulk delete
ALTER TRIGGER [dbo].[TRG_Delete_Bulk_tbl_attendance] ON [dbo].[tbl_attendance] AFTER DELETE AS
[code]...
When I try to run the website, the database error I am getting is:Transaction count after EXECUTE indicates that a COMMIT or ROLLBACK TRANSACTION statement is missing. Previous count = 0, current count = 1.
I ran the following query in Query Analyzer on a machine running SQL Server 2000. I'm attempting to delete from a linked server running SQL Server 2005:
DELETE FROM sql2005.production.dbo.products WHERE vendor='Foo' AND productId NOT IN ( SELECT productId FROM sql2000.staging.dbo.fooProductList )
The status message (and @@ROWCOUNT) told me 8 rows were affected, but nothing was actually deleted; when I ran a SELECT with the same criteria as the DELETE, all 8 rows are still there. So, once more I tried the DELETE command. This time it told me 7 rows were affected; when I ran the SELECT again, 5 of the rows were still there. Finally, after running this exact same DELETE query 5 times, I was able to remove all 8 rows. Each time it would tell me that a different number of rows had been deleted, and in no case was that number accurate.
I've never seen anything like this before. Neither of the tables involved were undergoing any other changes. There's no replication going on, or anything else that should introduce any delays. And I run queries like this all day, involving every thinkable combination of 2000 and 2005 servers, that don't give me any trouble.
Does anyone have suggestions on what might cause this sort of behavior?
I have a problem with one report on my server. A user has requested that I exclude him from receiving a timed email subscription to several reports. I was able to amend all the subscriptions except one. When I try to remove his email address from the subscription I receive this error:
An internal error occurred on the report server. See the error log for more details. (rsInternalError) Get Online Help
For more information about this error navigate to the report server on the local server machine, or enable remote errors
Online no help couldn't offer any advice at all, so I thought I'd just delete the subscription and recreate it again, but I receive the same message. "Okay, no problem, I'll just delete the report and redeploy it and set up the subscription so all the other users aren't affected", says I. "Oh, no!", says the report server, and then it give me this message:
System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Data.SqlClient.SqlException: Only members of sysadmin role are allowed to update or delete jobs owned by a different login. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Microsoft.ReportingServices.Library.InstrumentedSqlCommand.ExecuteNonQuery() at Microsoft.ReportingServices.Library.DBInterface.DeleteObject(String objectName) at Microsoft.ReportingServices.Library.RSService._DeleteItem(String item) at Microsoft.ReportingServices.Library.RSService.ExecuteBatch(Guid batchId) at Microsoft.ReportingServices.WebServer.ReportingService2005.ExecuteBatch() --- End of inner exception stack trace ---
What's even weirder is that I'm the owner and creator of the report and I'm a system admin and content manager on the report server and I set up the subscription when the report was initially deployed. Surely I should have sufficient rights to fart around with this subscription/report as I see fit?
I have rebooted the server, redeployed the report, checked credentials on the data source and tried amending and deleting from both the report manager and management studio but still I am prevented from doing so.
This one is weird and I am missing something fundamental on this one. A developer was getting a timeout with this...
CREATE PROCEDURE p_CM_DeleteBatch ( @SubmitterTranID VARCHAR(50) ) AS DECLARE @COUNT INT, @COMMIT INT
SET @COUNT = 0 SET @COMMIT = 1 --DO NOT CHANGE THIS. The Operation will be commited only when this value is 1
select @COUNT = COUNT(*) from claimsreceived where (claimstatus NOT IN ('Keyed', 'Imported')) AND SubmitterTranID = @SubmitterTranID
IF (@COUNT = 0) --This means that that Claims under this Batch have not been adjudicated & it is safe to delete BEGIN BEGIN TRANSACTION DELETE FROM INVOICECLAIMMAPPING WHERE CLMRECDID IN (SELECT DISTINCT CLMRECDID FROM CLAIMSRECEIVED WHERE SUBMITTERTRANID = @SUBMITTERTRANID) IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsPayment WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsPaymentServices WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsreceivedPayorServices where ClmRecdPyID in (SELECT ClmRecdPyID FROM ClaimsReceivedPayors WHERE SubmitterTranID = @SubmitterTranID)
IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsReceivedPayors WHERE ClmRecdid in (SELECT ClmRecdID FROM ClaimsReceived WHERE SubmitterTranID = @SubmitterTranID) IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsReceivedServices WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0 DELETE FROM ClaimsReceived WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0 DELETE FROM BATCHLOGCLAIMS WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
IF (@COMMIT = 1) BEGIN --ROLLBACK TRANSACTION --For Testing Purpose ONLY COMMIT TRANSACTION RETURN (0) END ELSE BEGIN ROLLBACK TRANSACTION RETURN (-1) END END ELSE BEGIN RaisError ('This Batch cannot be deleted. It has claim(s) which has been Adjudicated', 16, 1) END GO
I applied a couple of indices and got ride of the uncorrelated subqueries
CREATE PROCEDURE p_CM_DeleteBatch ( @SubmitterTranID VARCHAR(50) ) AS DECLARE @COUNT INT, @COMMIT INT
SET @COUNT = 0 SET @COMMIT = 1 --DO NOT CHANGE THIS. The Operation will be commited only when this value is 1
select @COUNT = COUNT(*) from claimsreceived where (claimstatus NOT IN ('Keyed', 'Imported')) AND SubmitterTranID = @SubmitterTranID
IF (@COUNT = 0) --This means that that Claims under this Batch have not been adjudicated & it is safe to delete BEGIN BEGIN TRANSACTION
DELETE INVOICECLAIMMAPPING FROM INVOICECLAIMMAPPING JOIN CLAIMSRECEIVED ON INVOICECLAIMMAPPING.CLMRECDID = CLAIMSRECEIVED.CLMRECDID WHERE CLAIMSRECEIVED.SUBMITTERTRANID = @SUBMITTERTRANID
IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsPayment WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsPaymentServices WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE ClaimsreceivedPayorServices FROM ClaimsreceivedPayorServices JOIN ClaimsReceivedPayors ON ClaimsreceivedPayorServices.ClmRecdPyID = ClaimsReceivedPayors.ClmRecPyID WHERE ClaimsReceivedPayors.SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE ClaimsReceivedPayors FROM ClaimsReceivedPayors JOIN ClaimsReceived ON ClaimsReceivedPayors.ClmRecdid = ClaimsReceived.ClmRecdid WHERE ClaimsReceived.SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsReceivedServices WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM ClaimsReceived WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
DELETE FROM BATCHLOGCLAIMS WHERE SubmitterTranID = @SubmitterTranID IF (@@ERROR <> 0) SET @COMMIT = 0
IF (@COMMIT = 1) BEGIN --ROLLBACK TRANSACTION --For Testing Purpose ONLY COMMIT TRANSACTION RETURN (0) END ELSE BEGIN ROLLBACK TRANSACTION RETURN (-1) END END ELSE BEGIN RaisError ('This Batch cannot be deleted. It has claim(s) which has been Adjudicated', 16, 1) END GO SET QUOTED_IDENTIFIER OFF GO SET ANSI_NULLS ON
GO
Suddenly this constraint was being violated with the change
Is the delete on ClaimsReceivedPayors starting before the delete on ClaimsreceivedPayorServices finishes? If so why would it matter between the join and subquery? This one is making me depressed because I can not explain it.
Need some advice solving a little problem I have with my database!
Current setup:
I have a person table that is made up of 39 columns. I also allow for person records to be deleted but I do this by having another table I call LogicallyDeletedrecords. This table is made up of the PersonId, Reason for deletion/suppression and a date time stamp. To access Live records I created a view based on my Person table which contains a WHERE clause to exclude records that exist in the LogicallyDeletedrecords. Similarly, I have another view DeadPersonData which contains Person records that have been removed. Hope it all makes sense so far! Now on to my worries!
The problem:
My Person table contains 9+ million records. The LogicallyDeletedrecords table has 500k+ but I anticipate further growth over the coming weeks/months. My worry is that my LivePersonData view will be too slow to access as my LogicallyDeletedrecords table grows. What’s more, as part of my Load routine, I have to make sure that Person data loaded on to the system is excluded if that same person exists as a deleted member. Both of these actions could slow down my system as the deleted table grows.
My thoughts:
I’ve been thinking of physically deleting dead Person records from my person table (possibly creating an archive table to hold them). But then if I delete them how do I cross check the details when new Person details get loaded?! As I said, my current LogicallyDeletedrecords table holds the PersonId, ReasonDeleted and CreationStamp. The only way is to add further columns which I use to match Person Details?
there are two tables involve in replication let say table1 and replicated table is also rep.table1.
we are not deleting records physically in table1 so only a bit in table1 has true when u want to delete a record but the strange thing is that replication agaent report that this is hard delete operation on table1 so download and report hard delete operation and delete the record in replicated table which is very crucial.
plz let me know where am i wrong and how i put it into right way.
there is no triggers on published tables and noother trigger is created on published table.
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.
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?
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.
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
I 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.
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.
