Inserting Nulls Into A Primary Key
Jan 16, 2004The Question is ...Is there a way or work around to inserting a blank values into a primary field PLZ HELP.
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Inserting Nulls In EM
Dec 21, 2005Hi,
I've forgotten how to put a null value in a column of a table where a previous value existed before.
What I mean is if through EM, you look at the data (Open Table -> Return all Rows) and you see a value in a column that is nullable (for example, I want to change a column that has a 'ABC Company' to a NULL value).
How do you that - i've done it in the past ,but cannot remember
Thanks in advance
Inserting Nulls Into The Db
Mar 27, 2002I'm using ADO.NET and have noticed that it is somewhat more difficult to send/receive nulls to/from the database. What are the benefits (if any exist) with storing a null value in the db as opposed to a default value?
In particular, do you save any space by storing a null opposed to a zero or 01/01/1900? Are the nulls faster for searching/comparing when querying the db?
Basically I'm just wondering if storing nulls is really the best practice and why, so that I know whether it's worth the effort in .NET to transform my variables into a null-happy form.
Any facts/opinions are appreciated,
Inge
Replacing NULLS And Inserting!!!
Sep 25, 2007How can I do this in SSIS. Any suggestion please
Insert Into Table1(T1_Col1, T1_Col2)
Select T2_Col1,Isnull( T2_Col2,' ') From Table2
I want to insert from Table 2 into Table1. If the data in T2_Col2 is NULL than I want to replace it with a blank/ Space as Table1 doesnot allow NULLS
I tried to see if Derived Column task is of any help but in vain.
Any suggestion
Inserting Nulls Into A Temp Table
Mar 3, 2008I'm trying to insert any null values into a temp table. I'm storing the ixo_rlt_code as OldRole, and 'Other' as NewRole. I need both the ixo_rlt_code as OldRole and 'Other' as NewRole in the temp talbe in order to run an update I'm writing.
I know a case statement isn't necessary here, but this section is only one small part of a larger script, so I just used it to be consistent, and it will be easier to make any future changes this way. Below is my code and the error message I'm getting...
select
ixo_key,
ixo_title as Title,
ixo_rlt_code as OldRole,
CASEWHEN ixo_title is null
or ixo_title = ''
or ixo_title = ' '
or ixo_title = ' ' THEN 'Other'
END as NewRole
from
co_customer (nolock)
join co_individual_x_organization (nolock) on ixo_key = cst_ixo_key --and ixo_delete_flag = 0
where
cst_delete_flag = 0
and cst_type = 'Individual'
and ixo_rlt_code is null
This is the Error Message I get:
Server: Msg 515, Level 16, State 2, Line 1095
Cannot insert the value NULL into column 'NewRole', table 'tempdb.dbo.#temp_______________________________________________________________________________________________________________00000001698C'; column does not allow nulls. INSERT fails.
The statement has been terminated.
Thanks ahead of time for any help/suggestions
Inserting Nulls? What's Wrong With This Expression?
Jan 9, 2008I have a derived column transformation that inspects two columns for spaces and creates a third column, initialised with either '1' or 'X'.
However the transformation is failing with the error"
Cannot insert the value NULL into column 'TNV-INSERT1'
"
Here's the expression I'm using:
SUBSTRING(rt_tran_inv_text,1,255) != " " ? " X" : SUBSTRING(rt_tnv_narr_cr,1,30) != " " ? " X" : "1"
Neither of the source columns contain nulls. Any idea why it's trying to insert nulls into the new column?
Inserting Data Into Table - Column Does Not Allow Nulls
Sep 26, 2013I'm inserting data from a c# webservice into a table via a stored procedure, but I get a Column does not allow nulls on the @alert_id column/field. It is set as int and allow nulls is not ticked.
Here's the sql:
USE [aren]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [aren1002].[ArenAlertInsert]
[Code] ....
Inserting Nulls In To Table Conflicting With Rule
Jan 15, 2007Hi,I basically have two tables with the same structure. One is an archiveof the other (backup). I want to essentially insert the data in to theother.I use:INSERT INTO table ( column, column .... )SELECT * FROM table2Now, table2 has a rule on various columns:@CHARACTER IN ('Y','N')but the column allows nulls, in the design view is says so anyway.When I run this query I get:A column insert or update conflicts with a rule imposed by a previousCREATE RULE statement. The statement was terminated. The conflictoccurred in database 'database', table 'table', column 'column'.The statement has been terminated.Obviously, I've changed the names of everything.The only data in those columns which could possibly conflict with therule is the NULL value. Any ideas why this doesn't work?Thanks.
View 8 Replies View RelatedEfficiency In Inserting Null Values Into Fields Which Allow Nulls.
Aug 9, 2004Hi,
I have fields in my table which allow nulls. Is it efficient to not insert anything (the field automatically shows up as null in this case) and leave or store some value into it. The field is a smallint field?
Thanks
Inserting Records On Primary Key
Feb 16, 2006I'm getting a foreign key error as well as Indentity Insert error when I'm trying to run a stored proc that inserts values from another table..help!!
View 4 Replies View RelatedCheck For Primary Key Before Inserting New Record
May 17, 2005Hi,
Can someone please tell me the best practices for checking the primary key field before inserting a record into my database?
As an example I have created an asp.net page using VB with an SQL server database. The web page will just insert two fields into a table (Name & Surname into the Names table). The primary key or the Names table is "Name". When I click the Submit button I would like to check to ensure there is not a duplicate primary key. If there is return a user friendly message i.e. A record already exisits, if there no duplicate, add the record.
I guess I could use try, catch within the .APSX page or would a stored procedure be better?
Thanks
Brett
Inserting A Record Into The Database ..problem With Primary Key..
Sep 7, 2006hii I have to insert some data into a table from the webpage. For that I need to know the last occurred value in the primary key and increment this by one and then insert the new record into the table. I am working with SQL Server 2005. I am coding in VB and ASP.NET 2.0. How will I go about this?? Is there some easy way for me to knw the last value of the primary key n then insert the record. It would be great if I get the idea more clear with the help of some code... Thanks
View 2 Replies View RelatedColumn Allows Nulls I Want To Change No Nulls Allowed
May 16, 2006When i do a select on my emplee table for rows with null idCompany i dont get any records
I then try to modify the table to not allow a null idCompany and i get this error message:
'Employee (aMgmt)' table
- Unable to modify table.
Cannot insert the value NULL into column 'idCompany', table 'D2.aMgmt.Tmp_Employee'; column does not allow nulls. INSERT fails.
The statement has been terminated.
This sux
Testing Permutations Of Nulls And Not Nulls
Feb 17, 2008is there an elegant way to use one equals sign in a where clause that returns true when both arguments are null, and returns true when neither is null but both are equal and returns false when only one is null?
View 4 Replies View RelatedDo Not Keep NULLS Using SSIS Bulk Insert Task - Insert Empty Strings Instead Of NULLS
May 15, 2008I have two SSIS packages that import from the same flat file into the same SQL 2005 table. I have one flat file connection (to a comma delimited file) and one OLE DB connection (to a SQL 2005 Database). Both packages use these same two Connection Managers. The SQL table allows NULL values for all fields. The flat file has "empty values" (i.e., ,"", ) for certain columns.
The first package uses the Data Flow Task with the "Keep nulls" property of the OLE DB Destination Editor unchecked. The columns in the source and destination are identically named thus the mapping is automatically assigned and is mapped based on ordinal position (which is equivalent to the mapping using Bulk Insert). When this task is executed no null values are inserted into the SQL table for the "empty values" from the flat file. Empty string values are inserted instead of NULL.
The second package uses the Bulk Insert Task with the "KeepNulls" property for the task (shown in the Properties pane when the task in selected in the Control Flow window) set to "False". When the task is executed NULL values are inserted into the SQL table for the "empty values" from the flat file.
So using the Data Flow Task " " (i.e., blank) is inserted. Using the Bulk Insert Task NULL is inserted (i.e., nothing is inserted, the field is skipped, the value for the record is omitted).
I want to have the exact same behavior on my data in the Bulk Insert Task as I do with the Data Flow Task.
Using the Bulk Insert Task, what must I do to have the Empty String values inserted into the SQL table where there is an "empty value" in the flat file? Why & how does this occur automatically in the Data Flow Task?
From a SQL Profile Trace comparison of the two methods I do not see where the syntax of the insert command nor the statements for the preceeding captured steps has dictated this change in the behavior of the inserted "" value for the recordset. Please help me understand what is going on here and how to accomplish this using the Bulk Insert Task.
How To Automatically Create New Records In A Foreign Table When Inserting Records In A Primary Table.
Sep 13, 2006Ok, I'm really new at this, but I am looking for a way to automatically insert new records into tables. I have one primary table with a primary key id that is automatically generated on insert and 3 other tables that have foreign keys pointing to the primary key. Is there a way to automatically create new records in the foreign tables that will have the new id? Would this be a job for a trigger, stored procedure? I admit I haven't studied up on those yet--I am learning things as I need them. Thanks.
View 4 Replies View RelatedConvert Composite Primary Key Into Simple Primary Key
Jan 11, 2007Uma 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"
Adding Primary Key To A Table Which Has Already A Primary Key
Aug 28, 2002Hi all,
Can anyone suggest me on Adding primary key to a table which has already a primary key.
Thanks,
Jeyam
Auto Incremented Integer Primary Keys Vs Varchar Primary Keys
Aug 13, 2007Hi,
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
NULLs
Sep 16, 2004Do NULLs take up space on the Database? I mean is room allocated for them?
View 9 Replies View RelatedNulls
Apr 5, 2004Can someone tell me what to do if several NULLS are showing up within tables. Is there an easy step to locate all NULLS and delete them within the table?
Can someone provide detailed infromation on how to delete NULLS within tables. I'm new o the SQL side so I hope I have explained what it is that I'm looking to do. Our in house programmer said that the NULLS maybe causing a problem with the software communicating with the SQL Server software.
Nulls
Apr 12, 2008I have a page with 100 numeric fields. SQL insert crashes lest there is a number in every field. Any way around this?
View 1 Replies View RelatedTwo Nulls
Feb 9, 2007Hi
i have a table t1 and wish to have to fk's now i want to be able to set it up so that only one of them can be null example:
t1
id___________fk1________fk2
1____________6__________NULL
2____________NULL_______3
3____________7__________NULL
4____________NULL_______NULL <<<<<<< This should not be allowed
thanks
james
Nulls
May 21, 2007Hi i am new to SQL, and i have a data base thats got NULLS in it
is there a query i can run, which can take the NULL value out ?
anything will be greatly appreciated.
NULLS And ''
Feb 6, 2007Hi,I don't have any specific details as I do not really understand whythis is happening but we have a customer database that we have beenusing and queries on text fields have begun returning empty stringvalues instead of NULL.So for example:SELECT TAB1.DESCRIPTIONFROM TABLE1 TAB1WHERE TAB1.DESCRIPTION IS NOT NULLORDER BY 1may have returned 50 records in the past (purely an example). It isnow returning an additional record first that appears just to be ''.Now I am not too sure where to begin looking into this. ODBCconnections, collation settings? I just am not sure where to begin.The column will not have had '' inserted into it; therefore it shouldbe NULL.I have posted this mainly so I can see if anybody else has seen thissort of behaviour - I cannot see why this has suddenly happened.The collation setting on our server is different to that of thecustomer DB, but this shouldn't make a difference should it?If anybody has any ideas then I can post some more information.Thanks,Paul
View 12 Replies View RelatedNulls
Mar 20, 2007create table t1(c1 int, c2 varchar(10))insert t1 values(1,'Hello')insert t1 values(2,'')insert t1 values(3,NULL)select *from t1c1c21Hello23NULLselect *from t1where c2 = ' 'c1c22select *from t1where ltrim(rtrim(c2)) is nullc1c23NULLThe last query should have result as following. However sql server2000 does no list row c1 = 2.c1c223NULL
View 6 Replies View RelatedAre Nulls Bad
Jul 20, 2005HiI am probably going to regret asking this because I'm sure you are going totell me my design is bad 8-) ah well we all have to learn....anywayI often use Nulls as a marker to see if certain tasks have been completed.A typical example would be a column say invoice_valuewhen new work is entered and a new record is appended, I leave theinvoice_value column as NULL, so if I want a View for uninvoiced work Icheck for the invoice_value being equal to NULL, and alternatively if I wantinvoiced work, I check for not null. I did it this way to save putting inanother column that needed to be set to TRUE or FALSE. (I do similar thingselsewhere aswell)so far everything seems to work OK but reading some old stuff on Google Iget the feeling that NULLS should be left alone, have I done wrong?many thanksAndy
View 3 Replies View RelatedNULLS
Nov 26, 2007Hello all
I have a colunm - Datatype : nvarchar - Contains: Numeric, characters, strings, date and NULLS
I am getting a the value of each row of this colunm in a variable say @var1
Now I am trying to do some functionalities depending on this variable.
The requirement is if this variable is not null I need to do some stuff.
So I write simple query:
IF (@var1 IS NOT NULL)
BEGIN
......
END
when i am doing this I get an Error:
Error converting data type nvarchar to numeric.
realizing this I change the condition to
IF ( LEN (@Var1) > 1)
then
IF (LEN (@Var1) <> 0)
but no use. I get the same error.
I even use cast
I get the error
Conversion failed when converting the nvarchar value 'null' to data type int.
IF(CAST (@OldValue AS INT)IS NOT NULL)
OR
IF(LEN (CAST (@OldValue AS INT)) <> 0)
Can somebody help in guiding the best practice to do this?
Column Does Not Allow Nulls
Nov 4, 2007 Hi,This should be straight forward, but I've searched high and low on the net.I have a FORM which allows me to INSERT data, SQL Server 2005 backend. I populate the all the mandatory fields. But when I click on the Insert button, it won't let me save and says:Column 'PERSONAL_ID' does not allow nullsI'm
using tableadapters, business logic layers etc. and pausing clearly
shows that the values from the form are being passed to the procedure
that I have created "AddNewRecord". And PERSONAL_ID is definitely not
NULL! It fails on Line 971: Me.Rows.Add(row)PERSONAL_ID
is a primary key which I generate. The pause also shows that for
PERSONAL_ID it says " {"Conversion from type 'DBNull' to type 'String'
is not valid."}Function AddNewRecord looks like this:<System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Insert, True)> _
Public Function AddNewRecord(ByVal PERSONAL_ID As String, ByVal SURNAME
As String, ByVal CHRISTIAN_NAME As String, ByVal SEX As String, _
ByVal FAMILY_POSITION As String, ByVal FAMILY_ID As String, ByVal
ADDRESS_1 As String, ByVal ADDRESS_2 As String, _ ByVal ADDRESS_3
As String, ByVal ADDRESS_4 As String, ByVal ADDRESS_5 As String, ByVal
ADDRESS_6 As String, ByVal POSTCODE As String, ByVal COUNTRY As String,
ByVal ORG_ID As String) As Boolean ' create a new details row instance Dim details As New smDetails.smTbl_DetailsIDDataTable Dim detail As smDetails.smTbl_DetailsIDRow = details.NewsmTbl_DetailsIDRow details.AddsmTbl_DetailsIDRow(detail)...my formview code is this: <InsertItemTemplate> PERSONAL_ID: <asp:TextBox ID="PERSONAL_IDTextBox" runat="server" Text='<%# Bind("PERSONAL_ID") %>' AutoPostBack="True" /> <br /> SURNAME: <asp:TextBox ID="SURNAMETextBox" runat="server" Text='<%# Bind("SURNAME") %>' AutoPostBack="True" /> <br /> CHRISTIAN_NAME: <asp:TextBox ID="CHRISTIAN_NAMETextBox" runat="server" Text='<%# Bind("CHRISTIAN_NAME") %>' /> <br /> SEX: <asp:TextBox ID="SEXTextBox" runat="server" Text='<%# Bind("SEX") %>' /> <br /> FAMILY_POSITION: <asp:TextBox ID="FAMILY_POSITIONTextBox" runat="server" Text='<%# Bind("FAMILY_POSITION") %>' /> <br /> FAMILY_ID: <asp:TextBox ID="FAMILY_IDTextBox" runat="server" Text='<%# Bind("FAMILY_ID") %>' /> <br /> ADDRESS_1: <asp:TextBox ID="ADDRESS_1TextBox" runat="server" Text='<%# Bind("ADDRESS_1") %>' /> <br /> ADDRESS_2: <asp:TextBox ID="ADDRESS_2TextBox" runat="server" Text='<%# Bind("ADDRESS_2") %>' /> <br /> ADDRESS_3: <asp:TextBox ID="ADDRESS_3TextBox" runat="server" Text='<%# Bind("ADDRESS_3") %>' /> <br /> ADDRESS_4: <asp:TextBox ID="ADDRESS_4TextBox" runat="server" Text='<%# Bind("ADDRESS_4") %>' /> <br /> ADDRESS_5: <asp:TextBox ID="ADDRESS_5TextBox" runat="server" Text='<%# Bind("ADDRESS_5") %>' /> <br /> ADDRESS_6: <asp:TextBox ID="ADDRESS_6TextBox" runat="server" Text='<%# Bind("ADDRESS_6") %>' /> <br /> POSTCODE: <asp:TextBox ID="POSTCODETextBox" runat="server" Text='<%# Bind("POSTCODE") %>' /> <br /> COUNTRY: <asp:TextBox ID="COUNTRYTextBox" runat="server" Text='<%# Bind("COUNTRY") %>' /> <br /> ORG_ID: <asp:TextBox ID="ORG_IDTextBox" runat="server" Text='<%# Bind("ORG_ID") %>' /> <br /> <asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert" Text="Insert" /> <asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" /> </InsertItemTemplate> Any pointers in the right direction would be appreciated. Thanks in advanceTushar
Need To Get NULLs Into The Action..
Mar 11, 2008I have the following query:
SELECT tblArticleCategory.ACategoryID, IsNull(ParentCategory, '') + IsNull( ' > ' + ACategoryName, '') AS Category from tblArticlecategory
RIGHT OUTER JOIN (SELECT ACategoryName as ParentCategory, ACategoryID from tblArticleCategory WHERE AParentID is null AND aActive=1) AS Parent
on parent.ACategoryID = tblArticleCategory.AParentID
WHERE tblArticleCategory.AActive=1ORDER BY Category
This produces an ordered list of the parent categories and subcategories from the table as long as there is a subcateogry directly below one of the parent categories. If there isn't one directly below the parent category, the parent category is dropped from the list. None of the parents with the NULLS back to back are in the list.
6 Arts & Entertainment > Dance2 Arts & Entertainment > Movies13 Computers > E-Learning4 Computers > Hardware14 Computers > Java16 Computers > Link Popularity17 Computers > Microsoft.net15 Computers > RSS5 Computers > Software8 Real Estate > Finance
How do I fix the query so that Automotive, Business, Cancer and Communications are included in the list?
Allow Nulls Cannot Be Changed
Apr 9, 2003I have a table as part of a replicated database where i need to change the allow nulls value (set it to not allow nulls) but when i try to save the table i get this error.
'CONTACTS' table
- Unable to modify table.
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot drop the table 'dbo.CONTACTS' because it is being used for replication.
will i have to stop replication to make the change or is it worse and i have to delete the publication and start all over again?
How To Sort NULLs?
Jul 13, 2004Hi All,
I have a table with 3 columns. Product, Location and Value. The data looks like this:
NULL NULL 100
Atlanta NULL 50
Atlanta Cookie1 30
Atlanta Cookie2 20
Dallas NULL 120
Dallas Cookie1 80
Dallas Cookie2 40
This table gets filled with a Groupby with Rollup option. The NULLS show subtotals/total. Is there a way to build a query that returns the results with NULLs at the bottom of each section like:
Atlanta Cookie1 30
Atlanta Cookie2 20
Atlanta NULL 50
Dallas Cookie1 80
Dallas Cookie2 40
Dallas NULL 120
NULL NULL 100
Thanks,
Shab
Space That Nulls Take
Mar 10, 1999We have compare two table with populated with the same data and with the same definition except, one table allows nulls
and the other table does not. All the fields are defined as integer. The table that allows nulls takes much more data space.
Why is that? I could not find an explaination in BOL.