I am trying to drop the "allow nulls" characteristics on an existing table
column. I know that there are not Nulls currently in this column, nor will
there ever be. How do I get rid of that "allow nulls" checkmark on an
existing table structure? Thanks, Craig.
I have created a table as below mentioned. Then I want to alter the ID column as identity(1,1) without dropping the table as well as losing the data.
create table dbo.IdentityTest
(
id int not null,
descript varchar(255) null,
T_date datetime not null
)
We have a requirement to add a not null column to an existing table.
I created the column with null and updated with single quotes, and then converted the column into not null.
Now, I can see in the publisher, it went fine. but in the subscribers, i'm getting the error as, can not insert null value. I then tried to make column as null to resolve the issue, but still it is holding the same error and not proceeding further.
Now I even dropped the column. still same issue. how can I resolve this issue? I'm using sql server 2008 R2 with SP3. replication type is Merge replication.
Damn! SQLServer2000 can't add a NOT NULL COLUMN even in one emptyexisting table!That is, A is the existing table and it is emtpy, I want to add one NOTNULL COLUMN (col_new) to A using following T-SQL statement, then itwill fail.ALTER TABLE A ADDcol_new varchar(600) NOT NULLGOYou should change it to these statements in SQLServer2000:ALTER TABLE A ADDcol_new varchar(600) NULLALTER TABLE A ALTER COLUMN col_new varchar(600) NOT NULLGOah, ridiculous! right?Fortunately, this stupid behavior is changed in SQLServer2005. Thefirst T-SQL statements works.
View 1 Replies View RelatedHow do i drop/remove the identity property for an existing column in all Tables where the Identity column is a primary key.
The Script below was used to find all the tables that have an Identity Column as a primary key in a database. Now i want to remove the identity property from the Identity Columns that have a primary key in the database.
select pk.table_name, c.column_name,
from information_schema.table_constraints pk
INNER JOIN information_schema.key_column_usage c ON c.TABLE_NAME = pk.TABLE_NAME
and c.constraint_name = pk.constraint_name
where constraint_type = 'PRIMARY KEY'
and COLUMNPROPERTY(object_id(pk.table_name), column_name, 'IsIdentity') = 1
ORDER BY pk.table_name, c.column_name
Can anyone tell me how to change the datatype of a column.
Without dropping and recreating the table...
The table is empty...
THNK YOU VERY MUCH...
I need to add syntax to a stored procedure to check for the existence of a specific indexes on a table before dropping it. If they do not exist I need it to NOT through an error message. Performing this on a table is relatively simple:
if exists (select * from sysobjects where id = object_id(N'[dbo].[TABLENAME]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[TABLENAME]
Since indexes are not represented in sysobjects how can I do this?
I simply need the ability using SQL to add columns in an existing table before (or after) columns that already exist.
The MS SQL implementation of ALTER TABLE doesn't seem to provide the before or after placement criteria I require. How is this done in MS SQL using SQL or is there a stored procedure I can use?
Thanks.
Hi everyone!
I just started with SQL and SQL Server 2005. I cantfind in my books how to add a column to an existing table. It should be a primary key, auto_increment column.
Hope someone can help, many thanks in advance
Greetings from Vienna Austria
landau
I have a table for blog comments I want to add a column that counts the number of comments for each article.
existing table looks like this:
CommentID
ArticleID (FK)
commentAuthor
authorEmail
comment
commentDate (getDate())
I would like to add a column that counts the number of total comments for each article.This will give me what I want using the VS query tool:
"SELECT COUNT(comment) AS Expr1 FROM UserComments WHERE (articleid = @articleid)"
But can I add that to the table somehow so it does it automagically???
I have an existing table (see below).
-----------
[FormCode] [varchar] (4) NULL ,
[FiscalYear] [char] (4) NULL
-----------
I want to add the column below after the [FormCode] when my SPROC runs.
-----------
[FiscalMonth] [char] (2) NULL
-----------
Any ideas would be a big help?
TIF
I receive this message when I try to run any report. The reportserver and reportservertempdb databases were upgraded using backup/restore from SQL2000 to SQL2005 on a separate server which is running RS2005 . Please help. Thanks
View 1 Replies View RelatedSorry I'm pretty new to SQL so I don't know if this is a simple question. I have a table, and I am trying to add a column to the table and populate this column using what would be called an 'IF' function in Excel.
Basically 'column A' has numbers in it. I want SQL to look at 'column A' and if the first 5 digits of the number in 'column A' are 00001, then put 'description A' into new column 'column B'. If the first 5 digits of the number in 'column A' are 00002, then put 'description B' into 'column A' etc.
Any ideas?
I want to add new primary key into existing table which already has a primary key. But,I do not want to remove the old primary key, since there are many records and the old primary key also have relationship with other table
When I am using this query:
alter table hem154
add indexNO uniqueidentifier default newid()
alter table hem154
add CONSTRAINT pk_hem154_indexNo PRIMARY KEY (PK_indexNO)
go
Note:
Hem154 ~ Table name
indexNo ~ Column Name
I get this runtime error:
Msg 1779, Level 16, State 0, Line 1
Table 'hem154' already has a primary key defined on it.
Msg 1750, Level 16, State 0, Line 1
Could not create constraint. See previous errors.
I removed all constraints in order to load a bunch of data into a table, now I'm wondering if I can add an identity column to this table which does contain data or if I have to create a new table with the identity column and insert the data into that.
thx
Kat
Dear Friends,
I need a SQL Query to add a identity coloumn for anExisting table. (ie) when i try to alter the table i want to add an identity coloumn.
Thanks in advance.
I am building a data warehouse. I have many columns I want to populate in a fact table using integration services. Sample fields are: companyID, companyName, companyNumberOfAccounts, company, NumberOfUsers.
In the integration services package, I would like to keep this fact table in place and populated with data and to build integration services packages that update each of the existing row's specific columns (e.g. companyNameOfAccounts) one by one. For example, I have a source of data that has companyID and companyNumberOfAccounts data.
Is it possible to use the SQL Server Destination or OLE DB Destination Integration Services elements to import companyID and companyNumberOfAccounts data so that existing records just have their companyNumberOfAccounts column updated?
I am doing a data conversion in which I drop constraints before inserting data and then reapply at the end. I would like to also drop the not null constraints for certain columns, transfer the nulls and then fill them in later before reapplying the constraints. Is there a relatively simple way to drop and reapply the not null constraints?
View 4 Replies View RelatedI am working with a table in SQL server. I have a column that I want to designateas an identity column. I am not able to do this, because the field for "Identity Specification" is not editiable.
What I did was I went to sql server, right clicked and selected "Modify".The column properties dialog box/edit grid is then displayed with attributesthat I can modify.
There are two major nodes in this dialog box. One is named "General" and the otheris named "Table Designer". I expand the "Table Designer" node and then go to the node labeled "Identity Specification" It is here where I would like to edit thevalues.
The values that are listed for edit are listed below. BUT, the problem is thatI can place my cursor in those fields, but I am not able to change/edit them.Can anyone tell me what the problem is here? and how I can fix it?
+Identity Specification (Is Identity) Identity Increment Identity Seed
After i run the sql which adds some columns on one particular table.I am getting this Warning
Warning: The table 'usac499_499A' has been created but its maximum row size (9033) exceeds the maximum number of bytes per row (8060). INSERT or UPDATE of a row in this table will fail if the resulting row length exceeds 8060 bytes.
I got a series of the above warning message , but the coulmn wa created.
How to add a primary key for existing column in the table
View 8 Replies View RelatedWe want to add a new int identity column as a primary key to an already existing table that has a primary key on Guid. Here is the DDL:
CREATE TABLE [dbo].[VRes](
[VResID] [uniqueidentifier] NOT NULL,
[Mes] [varchar](max) NOT NULL,
[PID] [uniqueidentifier] NOT NULL,
[Segt] [int] NOT NULL,
[code]....
Also we currently have 3 million rows on this table. Is having an integer column as identity column and primary key better or shd I consider using BigInt?
how to add identity column into existing table in sql.
View 5 Replies View RelatedHey Guys
i need to add a datetime column to an exisitng table that has like 1.2 million records and its being accessed frequently
but i cant afford to stop the db at all
whenever i do : alter table mytable add Updated_date datetime
it just takes too long and i have to stop executing the query after a couple of mins
I am running sql express 2005 sp2. db size is over 3 gb but still under the 4 gb limit
can u plz advice on how to add this column. its urgent!!
thanks in advance
Need to change the datatype of existing column which has huge data.
I'm performing below steps
1. Create new column with correct datatype in the same table
2. copy data into new column
3. drop indexes on column
4. <<<>>>
now the existing column also has many SP dependent and I do not wish to drop them.
5. rename existing column to xxx
6. rename new column to correct column
7. drop old column
8. make required indexes
I have a scenario where I need to add a blank column to a table that is a publisher. This table contains over 100 million records. What is the best way to add the column? In the past where I had to make an update, it breaks replication because the update would take forever as jobs are continuously updating the table so replication can't catch up.
If I alter a table and add a column, would this column automatically get picked up in replication?
Is it possible to partition an existing table on a foreign key (datetime) column? Also would partition switching work?
View 0 Replies View RelatedHello all,I'm using SS2K on W2k.I'v got a table say, humm, "Orders" with two fields in the PK:OrderDate and CustomerID. I would like to add an "ID" column whichwould be auto-increment (and would be the new PK). But, I would reallylike to have orders with the oldest OrderDate having the smallest IDnumber and, for a same OrderDate, I'd to have the smallest CustomerIDfirst. So my question is:How could I add an auto-increment column to a table and make it createits values in a particular order (sort by OrderDate then CustomerIDhere)?In the real situation, the table I want to modify has around 500krecords and the PK has 5 fields and I want to sort on three of them.Thanks for you helpYannick
View 7 Replies View RelatedIn y sql server table has millions of records available. I don't want to drop the tables.
My requirement is I want to change the column order of an existing table. some tables I am able to saving on design window Like Below image.
Even I had generate a script and using that script trying to execute on Management Studio but unable to saving the new column orders. I am getting the Timeout expired error after couple of minutes. How can we save the orders without dropping the table !
Does null column take storage in table ? I created the following table:
drop table [dbo].[TBL_orig]
CREATE TABLE [dbo].[TBL_orig](
[1] [bigint] NOT NULL,
[2] [bigint] NULL,
[3] [bigint] NULL,
[4] [bigint] NULL,
[5] [float] NULL,
[Code] ....
Does null value will take a place even no data insert to this columns and if yes this answer is 4 mb is logical gap ?
Hi,
I'm merge replicating a SQL Server 2005 database (publisher) to SQL Compact databases (subscribers) on mobile devices. I understood that I could add a "not null" column to a replicated table on the server as long as I specified a default value, but it seems this is not possible. I ran the following script on the server database:
ALTER TABLE Activity ADD ActivityRequiresProject bit not null default(0)
which executed OK. When I went to synchronize the db on the mobile device I got the following error:
Alter table only allows columns to be added which can contain null values. The column cannot be added to the table because it does not allow null values.
The SQL statement failed to execute. If this occurred while using merge replication, this is an internal error. If this occurred while using RDA, then the SQL statement is invalid either on the PULL statement or on the SubmitSQL statement. [ SQL statement = alter table "Activity" add "ActivityRequiresProject" bit not NULL constraint "DF__Activity__Activi__4A47DDAE" default ( ( 0 ) ) ]
Does anyone know if this is a valid error? Is is possible to add a not null column with default, and if not how do I update the schema on a replicated database?
Regards,
Greg
I have a excel file which has a column called "Code" and their values are A,B,C,D,E,F,G,H. I want to create a new column called "status" based on the values of "Code".
Code:
A
B
C
D
E
F
G
H
If A,C,E,G then "status" = "Active" else if B,D,F,H then "Status" = "Inactive". I like to do it using "Derived Column".
I'm new to replication and am trying to determine the best approach to add a column (NOT NULL with no DEFAULT) to a replicated table. The only success I have had is if I do the following:
Delete entire Subscription
Delete entire Publication
Add column to table
Create new Publication
Create new Subscription
Run SnapShot
The problem with this approach is that each step affects the entire database and not just the modified table. I think it is inefficient to redo replication for a simple object change. What am I missing? Is there a way to only replicate the changes made to the one table without having to run a SnapShot for the entire publication?
Keep in mind the column must be defined as NOT NULL and cannot have a Default.
Thanks, Dave