Just a quick easy question. If I alter a table (add a column to the table), will it take the table offline during the ALTER process? I am adding the column to the end of the table not in the middle. I know if I add it in the middle it will offline the table.
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Goofed up and ran an update query. It messed up all the data in a single table. I'm trying not to restore the table from a previous backup since the backup is more than 20 GB. It's going to take forever to restore it. Any advice would be much appreciated!
Thanks!
Charles.
System Configuration :
OS : Windows 2003 latest SP
SQL Server : Standard Edition, SP2
Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86)
Feb 9 2007 22:47:07
Copyright (c) 1988-2005 Microsoft Corporation
Standard Edition on Windows NT 5.2 (Build 3790: Service Pack 1)
DownTime : This is not a 24x7 kind of machine. It can have downtime
Reference : http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1198044&SiteID=1
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1026884&SiteID=1
I have been discussing this Service Broker issues in this forum for quite sometimes and sorry to bother u all again€¦ To make things more clearer before implementing in production environment I have few doubts and it should be clarified..
As discussed in the first link we can clear sys.conversation_endpoints by just giving ALTER DATABASE GPx SET NEW_BROKER WITH ROLLBACK IMMEDIATE. But my apprehension is that if we run this command on production server and it truncate this table€¦ what will be the impact and overall overhead on the system€¦ Is it recommended to give this statement on Production Server daily at less traffic times, to clear this table ?€¦ will it have adverse effect. I repeat I have downtime , I can even shutdown this server daily€¦
I also, just want to know why Microsoft has not looked into this aspects€¦ why the system itself is clearing the expired messages.. What is the thought behind this architecture
I have the script to run in batch€¦ but in high-level meetings it is always difficult to convince this architecture/process€¦
Thanks in advance
I have a *.sql script that creates database tables, and I need to modify the database to enable the service broker. In addition, the actual name of the database is not known in advance - it is set per instance of the application.
I know I need to do:
ALTER DATABASE dbname SET ENABLE_BROKER
But I must avoid including the name of the database in the script. I did wonder if this would work:
DECLARE @DB varchar(50)
SELECT @DB = DB_NAME()
ALTER DATABASE @DB SET ENABLE_BROKER
But I just get a syntax error. Presumably this also rules out setting the database name as a parameter to the script (SqlParameter stuff)
The only option I can think of is dynamically creating the statement, either in T-SQL or in the calling .NET environment.
Any thoughts?
Ruth
Hi people,I?m trying to alter a integer field to a decimal(12,4) field in MSACCESS 2K.Example:table : item_nota_fiscal_forn_setor_publicofield : qtd_mercadoria integer NOT NULLALTER TABLE item_nota_fiscal_forn_setor_publicoALTER COLUMN qtd_mercadoria decimal(12,4) NOT NULLBut, It doesn't work. A sintax error rises.I need to change that field in a Visual Basic aplication, dinamically.How can I do it? How can I create a decimal(12,4) field via script in MSACCESS?Thanks,Euler Almeida--Message posted via http://www.sqlmonster.com
View 1 Replies View RelatedHello, everyone:
I want to add a column, INT NOT NULL DEFAULT 0, to a table. There are about 9 mil. records, 57 columns in the table. SQL 2k on Win 2003. What impact maybe bring?
1) Is there a down time on database and server?
2) Is it possible to insert records during adding new column?
3) How long will be taken roughly?
Thanks a lot.
ZYT
Hi All,
I want to know what will be the impact of changing the primarykey on a table which already has a lot of data.
For example, column A is unique, primary key. I want to make column B as unique, primary key.
Can I do that? What will be the impact on database performance?
Thanks
Sri
SQL Server 2000:
Question 1
If you drop / rename a table and then recreate the table with the SAME NAME, what impact does it have on stored procedures that use these tables? From a system perspective, do you have to rebuild / recompile ALL the stored procedures that use this table?
I had a discussion with someone that said that this is a good idea, since the IDs of the tables change in sysobjects and from a SQL SERVER query plan perspective, this needs to be done...
Question 2
If you Truncate a Table as part of a BEGIN TRANSACTION, what happens if an error occurs? Will it Rollback? The theory is that it won't because Truncate doesn't utilize the logs where as Delete From uses the SQL Logs?
Thanks!
What causes SQL Server 2000 to create tables with default column sizes of 8000 for a varchar datatype??
I would assume this can cause significant performance problems.
(see attached)
What is the impact on the users to drop an index on a table while in use? I will recreate the index afterwards. The table is used constantly by a three of processes/users at all times.
View 3 Replies View RelatedI would like to add an Identity to an existing column in a table using astored procedure then add records to the table and then remove the identityafter the records have been added or something similar.here is a rough idea of what the stored procedure should do. (I do not knowthe syntax to accomplish this can anyone help or explain this?Thanks much,CBLCREATE proc dbo.pts_ImportJobsas/* add identity to [BarCode Part#] */alter table dbo.ItemTestalter column [BarCode Part#] [int] IDENTITY(1, 1) NOT NULL/* add records from text file here *//* remove identity from BarCode Part#] */alter table dbo.ItemTestalter column [BarCode Part#] [int] NOT NULLreturnGOSET QUOTED_IDENTIFIER OFFGOSET ANSI_NULLS ONGOhere is the original tableCREATE TABLE [ItemTest] ([BarCode Part#] [int] NOT NULL ,[File Number] [nvarchar] (20) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_File Number] DEFAULT (''),[Item Number] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Item Number] DEFAULT (''),[Description] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Description] DEFAULT (''),[Room Number] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Room Number] DEFAULT (''),[Quantity] [int] NULL CONSTRAINT [DF_ItemTest_Quantity] DEFAULT (0),[Label Printed Cnt] [int] NULL CONSTRAINT [DF_ItemTest_Label Printed Cnt]DEFAULT (0),[Rework] [bit] NULL CONSTRAINT [DF_ItemTest_Rework] DEFAULT (0),[Rework Cnt] [int] NULL CONSTRAINT [DF_ItemTest_Rework Cnt] DEFAULT (0),[Assembly Scan Cnt] [int] NULL CONSTRAINT [DF_ItemTest_Assembly Scan Cnt]DEFAULT (0),[BarCode Crate#] [int] NULL CONSTRAINT [DF_ItemTest_BarCode Crate#] DEFAULT(0),[Assembly Group#] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Assembly Group#] DEFAULT (''),[Assembly Name] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Assembly Name] DEFAULT (''),[Import Date] [datetime] NULL CONSTRAINT [DF_ItemTest_Import Date] DEFAULT(getdate()),CONSTRAINT [IX_ItemTest] UNIQUE NONCLUSTERED([BarCode Part#]) ON [PRIMARY]) ON [PRIMARY]GO
View 2 Replies View RelatedI am using sql server ce.I am changing my tables sometimes.how to use 'alter table alter column...'.for example:I have table 'customers', I delete column 'name' and add column 'age'.Now I drop Table 'customers' and create again.but I read something about 'alter table alter column...'.I use thi command but not work.I thing syntax not true,that I use..plaese help me?
my code:
Alter table customers alter column age
Hi guys,
If I have a temporary table called #CTE
With the columns
[Account]
[Name]
[RowID Table Level]
[RowID Data Level]
and I need to change the column type for the columns:
[RowID Table Level]
[RowID Data Level]
to integer, and set the column [RowID Table Level] as Identity (index) starting from 1, incrementing 1 each time.
What will be the right syntax using SQL SERVER 2000?
I am trying to solve the question in the link below:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2093921&SiteID=1
Thanks in advance,
Aldo.
I have tried the code below, but getting syntax error...
ALTER TABLE #CTE
ALTER COLUMN
[RowID Table Level] INT IDENTITY(1,1),
[RowID Data Level] INT;
I have also tried:
ALTER TABLE #CTE
MODIFY
[RowID Table Level] INT IDENTITY(1,1),
[RowID Data Level] INT;
I am using SQL Server 2005 and trying to create a linked server on Oracle 10. I used the commands below:
EXEC sp_addlinkedserver
@server = 'test1',
@srvproduct = 'Oracle',
@provider = 'MSDAORA',
@datasrc = 'testsource'
exec sp_addlinkedsrvlogin
@rmtsrvname = 'test1',
@useself = 'false',
@rmtuser='sp',
@rmtpassword='sp'
When I execute
select * from test1...COUNTRY
I get the error. "The OLE DB provider "MSDAORA" for linked server "...." does not contain the table "COUNTRY". The table either does not exist or the current user does not have permissions on that table."
The 'sp' user I am connecting is the owner of the table. What could be the problem ?
Thanks a lot.
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 table in our ERP database and we copy data from this table into another "stage"Â table on a nightly basis. is there a way to dynamically alter the schema of the stage table when the source table's structure is changed? in other words, if a new column is added to the source table, i would like to add the column to the stage table during the nightly refresh.
View 4 Replies View RelatedI have contract table which has built in foreign key constrains. How can I alter this table for delete/ update cascade without recreating the table so whenever studentId/ contactId is modified, the change is effected to the contract table.
Thanks
************************************************** ******
Contract table DDL is
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)
);
In SQL Server 2005,here are two tables, created by the following SQL Statements:
CREATE TABLE student(
ID CHAR(6) PRIMARY KEY,
NAME VARCHAR(10),
AGE INT
);
CREATE TABLE score(
ID CHAR(6) PRIMARY KEY,
SCORE INT,
FOREIGN KEY(ID) REFERENCES student(ID)
);
For the length of Column ID is not enough, So I want to alter its length.The alter statement is:
ALTER TABLE student ALTER COLUMN ID CHAR(20)
For the table student is referenced by table score, the alter statement can not alter the column of the table student, and the SQL Server DBMS give the errors.
But, I can manually alter the length of the column ID in SQL SERVER Management Studio. How to alter column length of the master table(student) along with the slave table(score)?
Thanks!
which ALTER TABLE/ALTER COLUMN- Statement has a Recreate Table as result ?
View 2 Replies View RelatedHello!I have an MS SQL-server with an database, that runs replication. In thisdatabase there is an table with an columni want to extend; varchar(50)->varchar(60).But I get this error (using design window of Enterprise Manager): Cannotdrop the table 'MytableName' because it is being used for replication.Thanks for helpBjoern
View 1 Replies View RelatedA customer wants to implement table partitioning on a replicated table.
They want to hold 13 months of data in the table and roll off the earliest/oldest month to an identical archive table. The table has a date field and partitioning by month makes sense all around.
So SWITCH PARTITION is the obvious solution to this, except for the fact that the table is replicated (transactional w/no subscriber updates).
What are his architectural or practical solutions to using table partitioning and replication?
thx
I have some problems getting my SSIS package to run in a transaction, I wonder if anyone can assist.
What I want to do is run one package, which consists of a
- 1) create staging table SQL statement
- 2) read (all) from Access MDB to staging
- 3) copy (only new) from staging table to real table
- 4) drop the staging table
I changed the package to "require" a transactions, and left all containers in it to "supported" (default, I think). I left all the transaction type to default "serializeable".
The package does not work, since the table I created on step one is not "seen" when step 2 wants to insert into it. If I set the package transaction back to "supported" (default) the package works, but an error on step 2 or 3 will not rollback changes and not remove the staging tables...
So, my question really is: How do I make step 1 results visible to step 2 in the same transaction? Or do I need to take a completly different approach for this?
Stupid question I think, but I seem to not be able to find the right way to handle this situation...
Thanks for reading!
Ralf
Hi there,
I have decided to move all my transaction handling from asp.net to stored procedures in a SQL Server 2000 database. I know the database is capable of rolling back the transactions just like myTransaction.Rollback() in asp.net. But what about exceptions? In asp.net, I am used to doing the following:
<code>Try 'execute commands myTransaction.Commit()Catch ex As Exception Response.Write(ex.Message) myTransaction.Rollback()End Try</code>Will the database inform me of any exceptions (and their messages)? Do I need to put anything explicit in my stored procedure other than rollback transaction?
Any help is greatly appreciated
Is there a way to add a column to an existing table and do it all in C#If my query string is as follows how do I execute the query?ALTER TABLE interests ADD COLUMN Swim VARCHAR(1) NOT NULL DEFAULT('n')ThanksMoonWa
View 2 Replies View RelatedI think I have blown a gasket..... a elementary simple sp that will not work but I am unable to find an explanation as to why..... please help.
CREATE PROCEDUREbrsp_table_alteration
@var_1 varchar(45)
,@var_2varchar(45)
,@var_3varchar(30)
AS
ALTER TABLE @var_1
ADD@var_2@var_3NULL
Thanks.
I have a table tblABC which exists in 800 databases. I want to run a cursor to turn off the pk field ID indentity permannetly and then to "insert tblABC select * from tblXYZ".
I have tried the "set indentity_insert tblABC on" statement and failed on insert tblABC select * from tblXYZ.
Is there any alter table related t-sql could permannetly turn off the identity?
thanks
David
Is there anyway to Insert a new column between two existing columns without creating a new table?
Thanks
Hi,
is it possible to override the system when adjusting
columns. i.e. a system override setting.
For instance if I've got a column that is indexed and I
want to adjust it from varchar(50) to varchar(51) it lets
me. But if I then try and adjust the column to varchar
(49) I get the error below:
Server: Msg 5074, Level 16, State 8, Line 1
The index 'LastName' is dependent on column 'lastname'.
Server: Msg 4922, Level 16, State 1, Line 1
ALTER TABLE ALTER COLUMN lastname failed because one or
more objects access this column.
I asked this question on another Forum and was told I had to drop the index first. Just thought I'd ask for a second opinion.
Thanks for the help.
Steve
Hi to all!
I have a silly problem, but I'm not able to solve it!
I know how to add a field in a table via Enterprise manager and I know also via ALTER TABLE command.
...But the problem is: I want to add a field NOT in the last position, but on the middle (for istance)
So, this is possible via Enterprise Manager but with the ALTER TABLE command? How can I add a field without put it in the last position?
...Thanks a lot!
Sergio
p.s.: Sorry for my poor english..I hope you understand my question!
hello,
i am trying to add a column to every table in a database, if it (doesn't already exist), with the following code:
declare @name varchar(50)
declare c cursor for select name from sys.tables
open c
fetch next from c into @name
while @@FETCH_STATUS = 0
begin
if( (select count(*) from sys.columns
WHERE object_id IN (SELECT object_id FROM sys.tables WHERE name = @name )
and name='ins_id') = 0 )
begin
alter table @name add ins_id int
end
fetch next from c into @name
end
close c
deallocate c
and when i run the script i get the error message
Incorrect syntax near '@name'.
reffering to the alter table statement
So, my question is, how can i actually perform the alter table in this case?
thank you
Pramod writes "I want to change the primary key field of my database to Identity seed. the table is with data. data should be secured
this is the structure
'=================================
CREATE TABLE [tblStock] (
[StockId] [numeric](18, 0) NOT NULL ,
[ItemID] [numeric](18, 0) NULL ,
[Batch] [varchar] (50) NULL ,
[Qty] [float] NULL ,
[Prate] [float] NULL ,
[SRate] [float] NULL ,
[Mrp] [float] NULL ,
[PTR] [float] NULL ,
[batchid] [numeric](18, 0) NULL ,
[BatchCode] [varchar] (50) NULL ,
CONSTRAINT [PK_tblStock] PRIMARY KEY NONCLUSTERED
(
[StockId]
) ON [PRIMARY] ,
CONSTRAINT [IX_tblStock] UNIQUE NONCLUSTERED
(
[ItemID],
[Batch],
[Prate]
) ON [PRIMARY]
) ON [PRIMARY]
===================================
How do i use alter table with identity seed
ALTER TABLE tblStock alter column StockID Numeric IDENTITY (1, 1)
how the p[rimary key affects
Please help me"
How to alter a table name by using Query Analyser
i tried like this..
ALTER TABLE of_info_grp
RENAME TO stp_info_grp_map
It is giving an error like this
Server: Msg 156, Level 15, State 1, Line 4
Incorrect syntax near the keyword 'TO'.
Some one help on this
Hi,I'm trying to write a function check if a column exists on a table, andcreates it if it doesn't. The line that the query analyzer is citingis noted. It seems unhappy taking variables in the ALTER TABLEcommand. I can think of a hack around this, but I'm hoping there's abetter way? Muchas gracias in advance :)-DJCode followsCREATE FUNCTION fieldCreator(@TableName varchar(20),@FieldName varchar(20))RETURNS BITASBEGINif (EXISTS (SELECT count (objname)FROM ::fn_listextendedproperty (NULL, 'user', 'dbo', 'table',@TableName, 'column', @FieldName)GROUP BY objname))BEGINALTER TABLE @TableName ADD @FieldName int DEFAULT 4 --ERRORS HERE!!!EXEC sp_addextendedproperty 'caption', 'Created by script foranalysis', 'user', dbo, 'table', @TableName, 'column', @FieldNamereturn 1ENDreturn 0ENDGO
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