I am fairly new to SQL, so I have a few questions that may sound odd. First of all, I am trying to restrict users to putting in a three character code as an id item, or their team abbreviation. Here is the table definition:
CREATE TABLE TEAMS{
city varchar(20) NOT NULL,
name varchar(20) NOT NULL,
id varchar(3) NOT NULL};
Here is my code for adding the constraint
ALTER TABLE TEAMS
ADD CONSTRAINT Chk_id CHECK (id = `[A-Z][A-Z][A-Z]`);
Here is the error that I get when trying to execute this statement:
Msg 547, Level 16, State 0, Line 1
ALTER TABLE statement conflicted with COLUMN CHECK constraint 'Chk_id'. The conflict occurred in database 'statbookdb', table 'cabateams', column 'id'.
I am using SQL 2005 EM if this makes any difference.
My other question is in regards to once the constraints have been put in. Is there a way to make SQL throw a message out when a user violates a constraint? Right now, I have a numerical constraint in and whenever I violate it, all that happens is a "This page cannot be displayed" error. It doesn't make sense if you can only do this on the front end, as I don't see the point in enforcing it on the backend if there is no way to notify the user.
im having a bit of a problem displaying the integrity constraints i have set. I need to show the table name, contraint name and contraint type, but i cant find out how to do this anywhere.
Two ways to do this... Creating the constraints when creating the data model OR using SQL to use the 'reference' constraint. Does 2005 provide any other automated method of creating the Primary Key - to Foreign key constraints without writing the SQL to do this?
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)
I have created a simple package to load an Excel Spreadsheet into a SQL Server table. There is a one to one relationship between the columns in the .xls file and the columns in the DB record. I am getting integrity constraint errors when I try to load all numeric data from the spreadsheet (defined as Category General in excel, not defined as numeric but consisting of all numeric characters) into a column defined as (nvarchar(20), not null) in SQL Server Management Studio. There are no constraints on the column.
I have been able to temporarily bypass the offending rows, but I do need to load them into SQL Server. The problem column has a mixture of data, two examples would be: N255, 168050. It's the 168050 value that's causing the Task to bomb. How can I get this loaded into my table ?
I am running the package from within MS Visual Studio 2005 Version 8, Excel is version 2003 (11.8120.8122) SP2
Using the new referential integrity constraints that will be made available, will it allow us to manually define the relationships between entities even if there is no true foreign key constraints setup in the database?
Lets say we deleted the FK_Orders_Customers in Northwind between orders and customers.
I setup this package to import data from a Sharepoint list to a SQL Server data table. The primary key of my SQL table is mapped to the Title column of my Sharepoint list. There is a possibility that duplicate values will be entered in the Title field of the Sharepoint list. So when importing data into my table via SSIS, my package always error-out when there it comes across duplicate values. how you others have managed data integrity when importing from a Sharepoint list with the Title column being mapped to the primary key of a table.
I have recently converted my DTS packages to SSIS and deployed them to the new server. I have the 2000 and 2005 server running concurrently, all that is left for me to do is compare the the tables generated by the DTS and SSIS packages to see if they are the same.
How do I go about comparing the tables, which are from two different servers using SQL server 2005?
I'm designing a database to store information about jobs that are in progress at a property. More than one job can be in progress at a property at one time and each different kind of job can contain different data, although they all share some common fields such as StartDate.
So I have a table that stores the property details PropertyDetails:
*ID PropertyAddress PropertyPostCode
Then I have a table that stores all of the jobs' shared details:
*PropertyID *JobID - These three make up a compound primary key *JobType StartDate EndDate
Then I have individual tables for each of the Jobs, for example BuildingWork:
*JobID BuildingContractor InsuranceCompany
Which works great, and enables me to query all basic job details from one table (JobDetails) rather than multiple tables for every job type.
BUT: I don't know how to enforce the referential integrity of the database. Obviously I can use a constraint to cascade deletes from the PropertyDetails table to the JobDetails table through the PropertyID, but there doesn't appear to then cascade the deletes from the JobDetails table to the individual Job tables as JobDetails has no idea what tables are there.
If I store the relevant individual table name as the JobType in the JobDetails table, could I use a trigger to somehow delete the related record from that table?
I 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 Friends, I am Ravi, I need a help. My case is like.. i need to upload data from csv file into sql server 2005 data table. but before that I need to check integrity of data for example: let us say csv data is like ISD CODE,STATE,NAME,QUALIFICATION 91,AP,KIRAN,MCA 01,MC,MIKE,MS
here i have to check that, wether there is an entry in ISD codes table for 91 and 01 (india and us) similarly AP , MC (Andhra Pradesh and MISSICippi) please suggest me a nice approach, no of records in ISD codes and States will 350-450 records.
I am thinking about moving some backups from the local machine to a remote server. Right now, I am using Ola Hallengren script for backups. The script performs checksum on the backup while it's being written on the disk. I am going to move the files using Robocopy utility. How do I check the data integrity once the backups are transferred to the remote server?
I develop my database locally using SQL Server Developer Edition, creating my tables and constraints. When I use DTS to export the database to the remote server, I chose the radio button labeled "Copy Objects and data between SQL Server databases", and then try to export to the remote server. It starts copying, but at the end, I always get this error:
[Microsoft][ODBC SQL Server Driver][SQL Server] ALTER TABLE statement conflicted with COLUMN FOREIGN KEY constraint 'FK_RuleCalls_ReviewRules'. Conflict occurred in database 'MyDB', table 'ReviewRules', column name 'RRName'.
When I do a straight copy of the tables using the DTS option “Copy table(s) and view(s) from the source database", the tables themselves copy fine, but I have to recreate the relationships in the remote server. I can't understand why I have a hard time exporting the foreign key constraint if all I am doing is copying the same local database to the remote server.
I can't imagine having to do this for a complex database schema, so if someone knows what I have to do, please let me know. Microsoft's Online Admin Pocket book does not go into detail on how to do this, nor does it reference this type of error.
I need to script out data in several tables (30+) and then reload those tables on a different database. The "target" database table data will get overwritten each time, not appended to. Several of these tables have numerous foreign keys and other constraints that must be dealt with. None of them have more than 100 records or so. Then I need to keep this script in source control and reference it as part of a post-deployment step with a Visual Studio DB project.
I have redgate, dbghost and visual studio. Are there any tools will generate the script for me complete with dropping all the constraints, truncating the tables, then re-adding the constraints back? Or, am I looking at simply scripting the table data out, then modifying the script myself to add in the steps to drop/readd the constraints? Further, since some of these tables might have relationships, not just to other tables, but to those in question, there will likely be an order in which the tables need to get loaded.
The approach I am thinking will be needed, since ive done this sort of thing before except with SSIS, is to run something like dbghost or the "generate scripts" option in SSMS as a starting point. From there, change the order around as needed, etc.
I have Variable , data source and conditional transformation which checks the count(*) if the count == 0 then I connect an script component and change variable to false(initial it is True) and write into a log file...
Then I check that variable on predence constarint at workflow if variable==True then success. BUT Whenever I run the package my dataflow gets green even the condition does not meet like count==0 . So my variable's value is "False". Actually if the condition doesnt meet then my script shouldnt work. Am I missing something???
create table person( personId int identity(1,1) primary key, fName varchar(25) not null, mI char(1) null, lName varchar(25) not null );
create table student( studentId char(4) not null primary key, personId int not null );
alter table student add constraint fk_person_student foreign key (personId) references person (personId) ;
create table instructor( instructorId char(4) not null primary key, instructorQual varchar(100) not null, personId int not null );
alter table instructor add constraint fk_person_instructor foreign key (personId) references person (personId) ;
create table contract( contractNum int identity(1,1) primary key, contractDate smalldatetime not null, tuition money not null, studentId char(4) not null foreign key references student (studentId), contactId int not null foreign key references contact (contactId) );
create table contact( contactId int not null primary key, fName varchar(25) not null, mI char(1) null, lName varchar(25) not null, street varchar(50) not null, city varchar(25) not null, state char(2) not null, zip char(5) not null, relationship varchar(25) not null, phNum char(12) not null, emailAdd varchar(50) null, );
create table class( classNum char(4) not null primary key, className varchar(25) not null, classDay char(3) not null, classTime char(8) not null, testNum char(5) not null );
alter table class add constraint fk_class_testnum foreign key (testNum) references test (testNum) ;
create table discount( discountNum char(3) primary key, discountDesc varchar(100) not null, discountPer decimal(3,2) not null );
create table test( testNum char(5) primary key, testName varchar(50) not null, testDate smalldatetime not null, testFee money not null, );
create table studentClass( studentId char(4) not null, classNum char(4) not null, pass char(1) not null );
Where should tests for data integrity be done, a few examples:
Inserting data but the underlying data has changed?
Adding data, say an order item row, but since going to that screen the order (and as a result all its order items as well) have been deleted?
It's just I'm starting to see even the simplest of stored procedures as being quite complicated. What puzzles me is a I see lots of INSERT stored procedures with none of this checking in, or returning error codes?
I having a problem importing a text file into an existing table using the DTS import wizard. The problem I am having is, I am getting an error message stating: Integrity violation: attempt to insert null data or data which violates constraints. The column the error is referenced to is an identity field and I am not trying to insert any data into the field. I have the allow insert identity box checked in the transformation section. Does anyone know about how to solve this problem. Thanks James
On weekends I have Integrity Checks scheduled to run. Many of these fail for individual databases because users do not log off and the databases cannot be switched to single user mode.
I have checked Books-on-line and have not yet stumbled onto a TSQL command that breaks the connections.
Is there a TSQL command to do this? If not, how can these connections be broken?
I used to work with little databases and throw everything into a table with no relation, and modify them all individually. Now I've learned about referential integrity, makes things a lot easier.
My question is, now what? Say I have a Customers table and an Orders table (to keep it simple). If custID is the primary key in customers, foreign key in orders, then if I want to insert into Orders, I need the custID. So those kinds of things I need to keep stored in a session state and insert them like that, correct?
I created a job to check the integrity of my databases every week using SQL Server Maintenance Plan Wizard. The job is failing every time... For tb_basico database it works fine, but with the other one (tb_cep) it doesn't work...
Does someone have an idea to solve this problem?
The message is:
[1] Database tb_basico: Check Data and Index Linkage...
** Execution Time: 0 hrs, 0 mins, 11 secs **
[Microsoft SQL-DMO (ODBC SQLState: 42000)] Error 5070: [Microsoft][ODBC SQL Server Driver][SQL Server]Database state cannot be changed while other users are using the database 'tb_cep' [Microsoft][ODBC SQL Server Driver][SQL Server]ALTER DATABASE statement failed. [Microsoft][ODBC SQL Server Driver][SQL Server]sp_dboption command failed. [2] Database tb_cep: Check Data and Index Linkage... [Microsoft SQL-DMO (ODBC SQLState: 42000)] Error 7919: [Microsoft][ODBC SQL Server Driver][SQL Server]Repair statement not processed. Database needs to be in single user mode.
The following errors were found:
[Microsoft][ODBC SQL Server Driver][SQL Server]Repair statement not processed. Database needs to be in single user mode. ** Execution Time: 0 hrs, 0 mins, 1 secs **
Is there a way of finding the foreign keys for a table and therefore determine weather any referential integrity rules would be broken if a record was deleted?
For example. You have an author you want to delete, but that author has books. You call a procedure to delete the author. The stored procedure checks the foriegn keys, checks the tables and determines what is in them and if any tables have records that would be "orphaned" you return an error reporting what tables have the "would be orphaned" data in them.
It need to be fairly generic int he manner that it checks the foreign keys and the sub table data.
This is on behalf of a guy at work so "requirements" may change. ;)
hi guys, i was asked to drop some tables...but before dropping i was asked to check for referential integrity.. so where and how can i check this referential integrity????
Hihow to set the referential integrity between 2 tables using enterprisemanager (microsoft SQL SERVER).. i tried and the tab doesn't allow meto choose. pls.help.thankssree--chavasreedharMessage posted via http://www.exforsys.com for all your training needs.
Hi,What methods can we use to check the integrity problems? Some records in mydatabase are having Foreign Keys but the database doesn't have any relatedrecords with required Primary Keys. I need to scan the whole database anddelete (maybe with backup, maybe not) all wrong records.Who can I do that? Is it need to write my own application to do that or wehave some standard way to fix these problems? I'm not a databaseadministrator and don't know these ways (yet). Can somebody help me withadvice?Thanks.Dmitri Shvetsov
How can I make sure that a couple of commands are either all executed on the database or none of them. For example right now I have an insert, update and delete command. I'm calling each of them with a SqlCommand. So I am afraid that that one of them might be executed, then there's a bad connection and the other two are not. How can I prevent this so that only all commands or nothing is executed on the database?
I have a few databases on this Windows 2000 Server running SQL 2000 which were detached from SQL 7.0 and attached to SQL 2000. The problem is the Maintenance Plans (Integrity Checks keep failing on SQL 2000. I 'DTS'ed a SQL 7.0 database to this SQL 2000 server and ran the Maintenance Plans on that database. Works fine only for the DTS'ed database. What am I missing ??? :confused:
I'm not sure about the way you enforce the referential integrity in a SQL server 6.5 database (I'm new to this environment). Does any one have an exemple. The doc I have is useless...Thanks
