Check Constraint With Custom Error Message
Mar 14, 2008
i need the t-sql statement for a check constraint that has a custom error message that shows the proper fromat for column entry.... i know its confusing...
example... if im using the authors table in the pubs database and the numbers in the au_id column reads xxx-xxxxxx where x represents numbers... what must i do so that the error message reads the proper format... ie. use proper format XXX-XXXXXX, is what i might want the error message to read.
thanks in advance
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Aug 19, 2006
Hey Guys,
I just this day started using SQL sever 2005. I created a database and
then created a table. Then I started adding some fields. I wanted to
add a check constraint to one of the fields called state but I keep
getting the same error. I right click on the field while editing the
table and select check constraint. I then click add on the check
constraint dialogue and in the expression caption I input the
following:
<code>
@State In('CA', 'AZ', 'UT', 'CO')
</code>
I am using a book and have straight copied the above example from
the book. However when I input the check constraint I get the following
error;
"Error validating constraint 'ck_myfirstdatabase'
I have tried this with other fields and other types of check
constraints and I still get the same error. I have tried to delete the
database and recreate it. I have tried everything I can think of and I
cannot seem to get check constraints to work. I have no idea why I keep
getting this message. I have checked the
examples a
thousand times, the syntax is definately correct. This is getting
extremely annoying as I cannot continue unless I do this. I'm all out
of ideas. Can anyone please tell me
why it could not be working? Any ideas would be greatly appreciated.
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May 29, 2015
I ran the below INSERT COMMAND and it resulted into the following error message.You can also see the table structure below.Those are the only two tables that reference the Artist table.
SET IDENTITY_INSERT dbo.ARTIST ON
INSERT INTO ARTIST
(ArtistID,LastName,FirstName,Nationality,DateOfBirth,DateDeceased)
VALUES(1, 'Miro', 'Joan', 'Spanish', 1893, 1983);
[code]....
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Jan 19, 2015
I have a constraint on a 3rd party app that I can't change the app but can add a constraint at the table level. The constraing works but the error message back is ugly. Is there a way to do some kind of raiserror on a constraint that could send better info back to the user, I have done this in triggers, is the an approach for constraints?
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Oct 22, 2007
Hi, everyone,
I have problems to setup peer-to-peer replication. After I setup, I have an error message as below.
Violation of PRIMARY KEY constraint 'XPKSYS_SRTY_ADT'. Cannot insert duplicate key in object 'dbo.SYS_SRTY_ADT'. (Source: MSSQLServer, Error number: 2627)
Event ID 14151 in vent viewer.
Does anyone have a solution to resolve the problem?
Thanks a lot.
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Dec 19, 2005
When the user does not have permissions to select, update, or delete a record I would like to write a custom error message to capture the sql error. I have tried "On Error Resume Next", which bypasses the error. Using an include file that will handle all the query errors that is accessible to the entire ASP application is the goal.
Thank you for the assistance.
MsLady
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Apr 22, 2000
Hi everybody,
There are times when the database (SQL 7.0) cannot be accessed ( backup, routine maintenance, etc....) from asp page.
In those cases i am getting an ugly asp error message.
Is there a way ( code ) which will trap that error and return a nicer custom message for user or something like that.
Thanks a lot,
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Jun 12, 2008
Can anyone help me, please.
I want my users to submit there email address and username to my Sql Database, but i want to prevent them from adding already existed usernames to my table.
I have a usernametextbox and emailtextbox and a Submit button.
How do i check in my table before Submiting?
Thanks!
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Mar 28, 2007
Hi I was wodering how to add an OR statment right in the Check Constraint expression.
This is what I am starting with in the database
([zip] like '[0-9][0-9][0-9][0-9][0-9]')
and what I want well not exact but this would answer my question
([zip] like '[0-9][0-9][0-9][0-9][0-9] || [A-Z][A-Z][A-Z][A-Z][A-Z]')
Thanks for any help
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Oct 31, 2000
hi, I want to implement a constraint on a talbe for two fields
phone numbers should b (###)###-####
and ss# should be ###-##-####
How can I create such constraint. I tried, but got an error message and could not save the table with the new changes.
Thanks
Ahmed
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Mar 4, 2004
In SQL Server 2000, I want to apply a check constraint on a column type varchar that it is not duplicated. Could someone help me out with this?
Also, should I just make this column the primary key instead of an identity field being the primary key?
What is the performance difference by applying the constraint rather then just making it the primary key?
Mike B
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Mar 22, 2004
I have an existing table with field ZIPCODE defined as VARCHAR(5).
I want to add a check constraint to allow only number from 0 to 9.
This is what I did but it gave me error:
alter table test
with check
add constraint ck_test
check (zip between '0' and '9')
error:
ALTER TABLE statement conflicted with COLUMN CHECK constraint 'ck_test'.
The conflict occurred in database 'lahdProperty', table 'test', column 'Zip'.
What did I do wrong. Thanks for your help.
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Mar 25, 2008
Hi,
I am creating a table in which i want a column to contain only these characters..ie
alphabets from a-z
alphabets from A-Z
numbers from 0-9
and allow characters
@
_ underscore..
.
- hyphen
ie suppose i have table called login..and i have 2 columns in this table named
Loginid LoginName...
So LoginName shuld accept only the above characters.while inserting data into this table..
Kindly help
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Nov 14, 2007
Hi, i want to put a check constraint on one of my tables to make sure that a member doesn't get loaded into the same usergroup twice. Could anyone please help me with this.
Here is some sample code:
Code Block
DECLARE @MyTable TABLE (ID INT IDENTITY(1,1), MemberID INT, ClientID INT, UsergroupID INT)
INSERT INTO @MyTable VALUES (123456, 211, 3054) -- Member gets loaded twice
INSERT INTO @MyTable VALUES (123456, 211, 3054)
INSERT INTO @MyTable VALUES (123456, 211, 3055) -- Same Member as the top but into ---- a different usergroup which is correct
INSERT INTO @MyTable VALUES (215489, 376, 2017)
INSERT INTO @MyTable VALUES (987512, 345, 2237)
INSERT INTO @MyTable VALUES (235479, 333, 1158)
INSERT INTO @MyTable VALUES (354985, 333, 1158)
SELECT * FROM @MyTable
The problem i have is that if a member is loaded into the same usergroup twice then the sites crash on the web applications and the member can't get into his profile page.Unfortunately i don't know which one of the 1000 stored procedures are used to access this table so that i could just change the query to SELECT TOP 1.
However i think that it will be better practive to just put a check contraint on the table and avoide the whole problem.
However 1 member can belong to multiple usergroups.
Any help will be greatly appreciated.
Kind Regards
Carel Greaves
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Apr 29, 2008
Hi,
If I diseable a Foreign Key like this:
Alter table table_name nocheck constraint constraint_name
I'm able to insert inconsitent data, then when I restart the contraint like this:
Alter table table_name check constraint constraint_name
the constraint dont check the current integrity of the data,
exist any way, without having to recreate the foreign key, to check the data integrity?
Thanks
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May 15, 2007
In our database we have an indexed field that is using unique values, so in the index we turned on the unique property. Now with some changes we made in the application this value can be Null (could not be Null in the past). When we have more as 1 value having value Null we get an exception of unique key violation.
Therefor we want to make an check constraint the checks if the value allready exists when the value is not Null.
Is this possible and how can it be done?
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Feb 25, 2007
Hi,
I am trying to enforce a rule that only one record in a table can have status 'Active'. I'd like to do this with CHECK constraint rather than trigger. I know SQL server doesn't support subqueries such as :
alter table add constraint chk_OnlyOneActive CHECK (1=(select count(*) from mytable where status='Active'))
Is there any workaround for this?
P.S. I tried using UDF like this:
alter table add constraint chk_OnlyOneActive CHECK (dbo.NumActiveRecords()=1)
and it works for insert - I am not able to insert a second "Active" record, but for some reason doesn't work for update - I am able to update existing record to status "Active" and end up with two or more Active records in the table.
Thank you.
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Jul 26, 2004
Hi,
I need list out the defaulat and constraint value in SQL2K. Where I get those values.
Thanks,
Ravi
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Sep 15, 2004
I am creating a check constraint on a field (GRID_NBR) for values between 1 & 99. I am a little confused on creating the expression for it (Books online is vague).
Can I use the following expression: GRID_NBR BETWEEN 1 AND 99
Or do I have to use: GRID_NBR > 0 AND GRID_NBR < 100
Thanks!
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Feb 17, 2004
Before adding a record this must check that in the column machine_id not twice the same machines are listed
Can someone help me?
Thanx and cheerz Wim
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May 15, 2008
Hi
I have a table with 3 columns in it. The ID column has a datetime data type.
Does anyone know how to apply a check constraint on this field so that the same month cannot be entered twice.
For example the field has the following data in the field
26/04/2008
27/05/2008
26/06/2008
25/07/2008
A user then tries to enter the value 20/05/2008, I would like the check constraint to block this value being entered due to the fact that a item with the same month value has already been entered.
Is this possible?
Thanking you in Advance!!!
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May 19, 2008
Hi
I have created a table which contains date periods. It has 3 fields all with DateTime data types. These fields being ID, BeginDate, and EndDate. The ID field will hold a date indicating what month the reord is for, ie 01/03/2007 being March or 05/04/2007 being April. The BeginDate will contain the beginnig date for the financial month and EndDate for the financial month.
I am trying to apply a check constraint on the ID field so that combaination of a month and year can only be entered once, ie. if 01/03/2007 already exists in the table then 03/03/2007 cannot.
Is this possible?
Thanking you in advance!
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Jun 19, 2008
I have a table called tblImages with the following columns:
ImageID [int]
UserID [int]
MainImg [bit]
what i need to ensure is that only one MainImage can be = 1 (true) for each userId at any one time.
any idea what i need to do?
alex
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Mar 23, 2014
I need to create a check constraint for an email column/field, where the field must contain an "@" symbol. Does sql (oracle or SQL in general) let you do this.
1. Tried myself:
ALTER TABLE Q_Customer
ADD CONSTRAINT Q_chk_Cus_email CHECK (Cus_email LIKE '%@%');
...but
ORA-02293: cannot validate (C3267304.Q_CHK_CUS_EMAIL) - check constraint violated
2. Tried from a forum: alter table Q_CUSTOMER
add constraint Q_Chk_cus_email check (Cus_email like '%_@__%.__%')
...but
ORA-02293: cannot validate (C3267304.Q_CHK_CUS_EMAIL) - check constraint violated
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Aug 7, 2014
I want to incorporate a Check constraint within a trigger, based on this but im struggling with the coding.Assuming that is an Alphanumeric field you should be checking what value is in the alphanumeric column from inserted, comparing it with whatever is in the AMGR_User_Fields_Tbl to see if there’s a duplicate and then raising the error...This is my Trigger:
ALTER TRIGGER [dbo].[DUPLICATES]
ON [dbo].[AMGR_User_Fields_Tbl]
FOR INSERT, UPDATE
AS
DECLARE @Alphanumericcol VARCHAR (750)
-- This trigger has been created to check that duplicate rows are not inserted into table.
-- Check if row exists
SELECT @Alphanumericcol
FROM Inserted i, AMGR_User_Fields_Tbl t
[code]....
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Jun 4, 2006
I am having some difficulties to find the documentation relative to the syntax of CHECK and CONTRAINT in MS SQL Server 2005. Can someone points me toward a reference guide?
Thanks in advance,
Joannès
http://www.peoplewords.com
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Apr 11, 2007
Hi , I have a table that holds CityName and TownName.This table is usually updated and I dont want the same CityName and TownName to be inserted Again.
I have used Primary Key that holds thoose two fields but Primary Key is an index and I know that using check constraint works by spending less performance then indexes .
So , How can I use a check Constraint for two fields ?
Thanks ...
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Jun 30, 2007
Hi there,
My problem should be fairly simple. Say i have a small table with 2 columns, employee_id and department_id. I want to create a check constraint so that no more than 4 employee_id can be associated with department_id and the user is warned if he/she is trying to do so. Can anyone advise me on how to do it?
Regards,
Kam
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Jul 23, 2005
Hi,I am new to database development and am writing a database as part of auniversity courseI have created a table as below called CableWire - the table is created ok.CREATE TABLE CableWire(CableWireID CHAR(7),BSstandard CHAR(16),Colour VARCHAR(16),Material VARCHAR(16),MetresInStock INTEGER,PRIMARY KEY (CableWireID));However when I try to alter the table by adding a CHECK constraint:ALTER TABLE CableWireADD CHECK (MetresInStock >= 0);I get a pop-up box: "Line: 21SQLSTATE = 37000[Microsoft][ODBC dBase Driver] Syntax error in field definition, Continue?"(line 21 equated to the 2nd of those 2 lines). The syntax seems perfectlyacceptable to me. Any help appreciated.Regards,Mary
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Jun 10, 2007
Can we use parentheses in a check constraint in MS-SQL-server DDL?e.g. I'm having a problem with the following statement:ALTER TABLE [dbo].[MyTable] ADD CONSTRAINT [CK_MyTable_TimesDataOK]CHECK (([TimeOn] IS NULL AND [TimeOff] IS NULL)OR([ShiftCode] IS NOT NULL AND [TimeOn] IS NOT NULL AND [TimeOff] IS NOTNULL));The statement appears to run fine, but when I look at my tabledefinition afterwards, it appears that SQL-server ignored theparentheses in my constraint; it shows the constraint expression as:(([TimeOn] IS NULL AND [TimeOff] IS NULL OR [ShiftCode] IS NOT NULL AND[TimeOn] IS NOT NULL AND [TimeOff] IS NOT NULL))My intention is that if there's (non null) data in either of the columnsTimeOn or TimeOff is not null, all three of the columns TimeOn, TimeOffand ShiftCode must have non null data.OK, I realise I could enforce this by altering my table setup in otherways. Right now I'm just trying to figure out if this I'm just upagainst a difference between dialects of SQL in check constraints here.Am I missing something obvious with parentheses?BTW the DDL for the table I'm testing on:CREATE TABLE [dbo].[MyTable]([FNname] [nvarchar](50) NOT NULL,[ShiftDate] [datetime] NOT NULL,[ShiftCode] [nchar](2) NULL,[TimeOn] [nchar](4) NULL,[TimeOff] [nchar](4) NULL);
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Jul 24, 2007
I thought the whole point of 'check constraint' being unticked meant you could whack your data straight in no probs.
How can I insert a bunch of historical information where I want to control the PK, in this case DealID?
I have got 'keep identity' checked.
I check the db, the Id does NOT exist currently.
Error: 0xC0202009 at Data Cleansing, Deal Insert [12194]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "The statement has been terminated.".
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Violation of PRIMARY KEY constraint 'PK_DealID'. Cannot insert duplicate key in object 'dbo.Deal'.".
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Oct 25, 2007
Hi all,
Any advice much appreciated.
I have a table that defines the metadata of some values that will be stored in some generic table somewhere. Here's the table definition:
CREATE TABLE [dbo].[AttributeType]
(
[AttributeTypeID] [int] NOT NULL
, [AttributeTypeName] [nvarchar] (40) NOT NULL
, [AttributeDataType] [nvarchar] (40) NOT NULL CONSTRAINT CK_AttributeDataType_Values CHECK ([AttributeDataType] IN ('NVARCHAR','INT','DECIMAL','DATETIME'))
, [AttributeLength] tinyint NULL
, [AttributePrecision]tinyint NULL
, [AttributeScale] tinyint NULL
, CONSTRAINT CK_AttributeScale_Values CHECK (AttributeScale <= AttributePrecision)
) ON [PRIMARY]
What I want to do is write a constraint (or 4 constraints) that says:
If AttributeDataType = 'nvarchar', AttributeLength cannot be NULL, AttributePrecision must be NULL, AttributeScale must be NULL
If AttributeDataType = 'int', AttributeLength must be NULL, AttributePrecision must be NULL, AttributeScale must be NULL
If AttributeDataType = 'datetime', AttributeLength must be NULL, AttributePrecision must be NULL, AttributeScale must be NULL
If AttributeDataType = 'decimal', AttributeLength must be NULL, AttributePrecision cannot be NULL, AttributeScale cannot be NULL
Is that even possible? I've tried and failed (admittedly not for too long) to fathom a way of doing it.
-Jamie
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May 20, 2008
Hi
I have created a table which contains date periods. It has 3 fields all with DateTime data types. These fields being ID, BeginDate, and EndDate. The ID field will hold a date indicating what month the reord is for, ie 01/03/2007 being March or 05/04/2007 being April. The BeginDate will contain the beginnig date for the financial month and EndDate for the financial month.
I am trying to apply a check constraint on the ID field so that combaination of a month and year can only be entered once, ie. if 01/03/2007 already exists in the table then 03/03/2007 cannot.
Is this possible?
Thanking you in advance!
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