hello friends!...
I am always workign in Query Analyzer..
I hav a created a table with a primary key set to its first column..
Now i want to remove the key from the column..
Is there any query to remove the key that has been already set to a column???
Hello Guys,
I need some help with a question I've been struggling to solve all day. I'm new to Transact-SQL and thus tried to solve my little problem by reading the language reference, but I didn't find what I was looking for.
Here's the scenario: I want to remove a table's primary key and replace it with a new one. Removing the pk is usually done with:
1) ALTER TABLE tablename DROP CONSTRAINT constraint_name; GO
Unfortunatley, I don't know constraint_name and the simple MySQL command
ALTER TABLE tablename DROP PRIMARY KEY
doesn't seem to work. To get constraint_name I made a query:
2) SELECT name from sys.key_constraints where parent_object_id = (select object_id from sys.tables where name = 'tablename')
Now, here's the core of my problem: I need to link statements 1) and 2) and tried
ALTER TABLE tablename DROP CONSTRAINT (SELECT name from sys.key_constraints where parent_object_id = (select object_id from sys.tables where name = 'tablename'))
but that doesn't, I get a syntax error.
Do you have a clue? I'm sure its a simple problem for an experienced programmer, but I don't get it. Or do you know another way of removing the primary key without having to state constraint_name explicitely?
Any help is appreciated!
Thanks a bunch,
adunak
I have a table that was set up with a primary key - that i need to change. The problem is that the database is being replicated to a remote location, and will not allow me to remove or change the primary key on a published database.
Due to the size of the database and bandwith limitations it is not an option to re-initialise the published database.
Is there any to do this without breaking replication
Hi all,
I tried to remove AdventureWorksDB in the "Add or Remove Programs" of Contol Panel and I got the following errors: (1) AdventureWorksDB Error 1326: Error getting file security: CProgram FilesMicrosoft SQL ServerMSSQL1MSSQLGetLastError: 5. |OK| and (2) Add or Remove Programs Fatal Error during installation (after I clicked the |OK| button). Please help and tell me how I can solve this problem.
Thanks in advance,
Scott Chang
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Thanks
deebeez1
I need help,
I am having a hard time removing my SQL instance inside the Add/Remove program. After i select the SQL Instance name and then I tried to remove it but it won't allow me to delete it. There isn't any error message or whatsoever. Actually, when i try to log it in my SQL Management studio, that certain sql instance name is not existing according to the message box. Is there any way to remove the Sql Instance in my system?
I appreciate your help, Thanks
IS Support
Uma 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"
Hi all,
Can anyone suggest me on Adding primary key to a table which has already a primary key.
Thanks,
Jeyam
Hi,
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
We have a table, which has one clustered index and one non clustered index(primary key). I want to drop the existing clustered index and make the primary key as clustered. Is there any easy way to do that. Will Drop_Existing support on this matter?
View 2 Replies View RelatedHi all
I have the following table
CREATE TABLE [dbo].[property_instance] (
[property_instance_id] [int] IDENTITY (1, 1) NOT NULL ,
[application_id] [int] NOT NULL ,
[owner_id] [nvarchar] (100) NOT NULL ,
[property_id] [int] NOT NULL ,
[owner_type_id] [int] NOT NULL ,
[property_value] [ntext] NOT NULL ,
[date_created] [datetime] NOT NULL ,
[date_modified] [datetime] NULL
)
I have created an 'artificial' primary key, property_instance_id. The 'true' primary key is application_id, owner_id, property_id and owner_type_id
In this specific instance
- property_instance_id will never be a foreign key into another table
- queries will generally use application_id, owner_id, property_id and owner_type_id in the WHERE clause when searching for a particular row
- Once inserted, none of the application_id, owner_id, property_id or owner_type_id columns will ever be modified
I generally like to create artificial primary keys whenever the primary key would otherwise consist of more than 2 columns.
What do people think the advantages and disadvantages of each technique are? Do you recommend I go with the existing model, or should I remove the artificial primary key column and just go with a 4 column primary key for this table?
Thanks Matt
In one of the column which i import , all records have the
This means the enter button on that line... how to replace or remove
Eg ::
Month @ 7:30 p.m. Location: ass nue Westmont
Hi all
In my table one of the column consists the values like this
Krishna"
Rama"
- - - - -
I want to remove ". I started with instr to findout the occurence. Its giving the message that
'InStr' is not a recognized built-in function name.. How to solve it.
Waiting for valuable replies
Thank u
Baba
Please help to remove (-)
The EM_TERMINATION_DATE column have records with no data.
I am using the following below script to format the dates.
The problem is : the format with (-) between yyyy-mm-dd retrive NULL records with (-) see the output. How to fix it?
Here is my ouput:
EM_TERMINATION_DATE
2006-03-15
- -
- -
- -
- -
Here is my script:
select
cast(left(EM_TERMINATION_DATE, 4) as varchar(4))
+ '-' +
Cast(right(EM_TERMINATION_DATE, 4) as varchar(2))
+ '-' +
Cast(left(Right(EM_TERMINATION_DATE,2), 2) as varchar(2))as TERM_DT
FROM EMF
Hi,
I don't need sql express, never use it and I would like to remove it. Is it possible without loosing important functionalities in VWD? Is that true that cannot compile the applications (ctrl+f5) anymore?
I had sqlcachedependancy installed. But now I cannot uninstall it?
1. I unregistered:
C:WINDOWSMicrosoft.NETFrameworkv2.0.50727>aspnet_regsql.exe -E -S localhost-d DNN1 -dd
2. I remove the Dependencry.Start() from my application_start
' System.Data.SqlClient.SqlDependency.Start(ConfigurationManager.ConnectionStrings("SiteSqlServer").ConnectionString)
3. I removed the cache section from my web.config
4. I removed the outputcache statements from my aspx pages.
<!--<%@ OutputCache Duration="1" VaryByParam="*" SqlDependency="CommandNotification" %>-->
However, I still get the next error:
File
Error
When using SqlDependency without providing an options value, SqlDependency.Start() must be called prior to execution of a command added to the SqlDependency instance.
What to do?
Any help or advice is appreciated.
Jelle
Would someone mind helping me with formatting a string please??
I have a column DECIMAL(4,2). In a stored proc I am selecting this field and converting it to varchar so I can append certain characters to it (this is really irrelevant to my question). However, before appending the characters, I need to remove zeros after the decimal point.
Examples:
3.00 should be 3
3.20 should be 3.2
3.05 should be 3.05
etc
Hi
Can anyone tell me how I can remove a foreign key in a SQL database?
Thanks in advance
here is what i have
SELECT FName, LName, CONVERT(VARCHAR(40),Birth,110)
FROM members
WHERE DatePart(month,Birth) = DatePart(month,getDate())
i would like to remove the year from the date. is their a way i can do that.
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ALTER DATABASE MyDBName
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<Forgive me if it is a simple BOL answer, but I'm having trouble finding it>
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Hi, all.
I have two server(Svr01, Svr02) that are replicated each other (Merge replication).
Svr01 must be Publisher distributor.. but, by mistake Svr02 is set to distributor, publisher. (Publisher/distributor are on the same comp..)
I want to fix this..
How?
I think I have to remove replication on both side and Reset from the first.
but, I don't know how to remove replication either..
Please reply with any thougt....
I have an asset schema problem which I'm not too sure how to resolve....
I have an asset table which stores values common to all asset types. I have created seperate asset type tables(VehicleAssetDetail, PropertyAssetDetail, InvestmentAssetDetail) to store their specific details.
This in turn creates 1:1 relationships between "Asset" table and the respective detail tables.
If I were to store all the details in the "Asset" table it would cause a lot of redundancy bearing in my mind there are about four other asset type details I have excluded from the schema.
Are the 1:1 relationships bad? If they are, how do I resolve them without throwing all the columns from the asset details tables into the Asset table?
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Thanks.
The issue being we have a category field that has Business;Client;Stuff. I would like to remove just the Business and leave the other stuff. Ive tried the link below and it removes everything..
update dbo.TBL_CONTACT
set CATEGORY = REPLACE(CATEGORY, 'Business', NULL)
HI All,
I want to remove duplicate records from my table based on nic number. I try to put primray key constraint. But there are many many duplicates so cannot do it can I have a query to remove duplicates..
Thnx
;)
Shani
TableA
Col1
----
13.4
13.4 a
13..4
13,.4
Result for Table A needed:
Col1 ColCalculated
--------------------------
13.4 13.4
13.4 a null
13..4 null
13,.4 null
how can I achieve it.
how to remove always on in sql 2012 ?
View 3 Replies View Relatedi need to do patching of the application servers, some of the databases are configured in availability group .as part of this need to remove the database from availability and rejoin the db after doing patching .
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How do u remove timestamp using select statement. Here is the list of records in my sql table
Datesent:
1:2008-01-18 00:00:19.000
2:2008-01-18 00:00:21.000
3:2008-01-18 00:00:24.000
I need to count these record and group them- If count and group them I will have three records for one count each for the date 2008-01-18. But I need to have one records with three count.
here is my sql.
SELECT datesent, COUNT(datesent) AS COUNT_RECORDS
from MyTable
Josephine
Hi Everyone,
Can you help me on my problem, I have a data 'ABC0000000000000027', i want to change it. i want to will become 'ABC27'. what I want is remove all the '0'. how to write the query to remove the '0'?
thanks in advance
andriancruz