Drop Unique
Oct 15, 2007How can I drop/delete unique to a column in a table?
tried with alter table table1 drop unique(column1);
but it didnt work out..
:)
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How To Drop UNIQUE CONSTRAINT On Only One Column
May 5, 2014I am very new to sql and I have got this doubt.
CREATE TABLE employee
{ EMP-ID VARCHAR UNIQUE,
DESIG VARCHAR UNIQUE,
SALARY INT };
Probably this is worst table ever created :).Now How to drop UNIQUE constraint on only column lets DESIG.
if i write
ALTER TABLE employee
DROP CONSTRAINT myuniqueconstraint;
will drop constraints on both columns which I dont want.
Any query that remove UNIQUE CONSTRAINT only on DESIGN column.
and one more clarification,
ALTER TABLE employee
MODIFY SALARY INT NOT NULL;
ALTER TABLE employee
ALTER COLUMN SALARY INT NOT NULL;
which of the above two is right query to add NOT NULL constraint to the above employee TABLE?
Reporting Services :: How To Drop Unique Key Column
Jun 9, 2015How to drop the unique key column in sql.
View 2 Replies View RelatedDrop All Indexes In A Table, How To Drop All For User Tables In Database
Oct 9, 2006Hi,I found this SQL in the news group to drop indexs in a table. I need ascript that will drop all indexes in all user tables of a givendatabase:DECLARE @indexName NVARCHAR(128)DECLARE @dropIndexSql NVARCHAR(4000)DECLARE tableIndexes CURSOR FORSELECT name FROM sysindexesWHERE id = OBJECT_ID(N'F_BI_Registration_Tracking_Summary')AND indid 0AND indid < 255AND INDEXPROPERTY(id, name, 'IsStatistics') = 0OPEN tableIndexesFETCH NEXT FROM tableIndexes INTO @indexNameWHILE @@fetch_status = 0BEGINSET @dropIndexSql = N' DROP INDEXF_BI_Registration_Tracking_Summary.' + @indexNameEXEC sp_executesql @dropIndexSqlFETCH NEXT FROM tableIndexes INTO @indexNameENDCLOSE tableIndexesDEALLOCATE tableIndexesTIARob
View 2 Replies View RelatedSQL Server 2012 :: Failing On Update With Unique Index Error (Not Unique)
Jul 5, 2015This index is not unique
ix_report_history_creative_id
Msg 2601, Level 14, State 1, Procedure DFP_report_load, Line 161
Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'.
The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324).
Msg 3621, Level 0, State 0, Procedure DFP_report_load, Line 161
The statement has been terminated.
Exception in Task: Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'. The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324).
The statement has been terminated.
What Is The Difference Between A UNIQUE INDEX And A UNIQUE CONSTRAINT?
Sep 22, 2004A UNIQUE INDEX must inherently impose a unique constraint and a UNIQUE CONSTRAINT is most likely implemented via a UNIQUE INDEX. So what is the difference? When you create in Enterprise Manager you must select one or the other.
View 8 Replies View RelatedUnique Constraint Vs Unique Index In MS SQL 2000
Jul 20, 2005HelloWhat should I use for better perfomance sinceunique constraint always use index ?ThanksKamil
View 5 Replies View RelatedUnique Constraint And Unique Index, What's The Difference?
Jun 24, 2006What's the difference in the effect of the followings:
CREATE UNIQUE NONCLUSTERED INDEX
and
ALTER TABLE dbo.titles ADD CONSTRAINT
titleind UNIQUE NONCLUSTERED
I found there're two settings in Indexs/Keys dialog box of the management studio, Is Unique, and Type. The DDL statements above are generated by setting Is Unique to yes plus Type to Index, and just Type to Unique Key, respectively. What's the difference between them?
Unique Index Vs Unique Constraint
Mar 7, 2001Hi everyone,
I need urgent help to resolve this issue...
As far as the performance goes which one is better..
Unique Index(col1, col2) OR Unique constraint(col1, col2) ?
Unique constraint automatically adds a unique index
and unique index takes care of uniqueness then whats the use of unique constraint ?
Which one do one use ?
thanks
sonali
Unique Constraint Vs Unique Index
Jan 20, 2006BOL says a unique constraint is preferred over a unique index. It also states that a unique constraint creates a unique index. What then is the difference between the two, and why is a constraint preferred over the index?
View 2 Replies View RelatedUnique Index Vs Unique Constraints
Mar 26, 2008
hi team,
.Can i create umique constraint with out unique index.when i am creating a unique constraint sql creates a unique index (default) can i have only unique constraint ?
How To Select Unique Row When Entire Row Not Unique?
Mar 12, 2008I am having a problem trying to figure out the best way to get the results I need. I have a table of part numbers that is joined with a table of notes. The table of notes is specific to the part number and user. A row in the notes table is only created if the user has entered notes on that part number. I need to create a search that grabs all matches on a keyword and returns the records. The problem is that it currently returns a row from the parts table with no notes and a separate row with the notes included if they had created an entry. It seems like this should be easy but it eludes me today.
Here is the code
Code Snippet
create procedure SearchPartKeyword
(
@Keyword varchar(250) = null,
@Universal_Id varchar(10) = null
)
as
select p.PartNumber, p.Description, p.ServiceOrderable, n.MyNotes, p.LargestAssembly, p.DMM,
p.Legacy, p.Folder, p.Printer
from Parts p inner join notes n on p.PartNumber = n.Identifier
where n.Universal_ID = @Universal_ID and p.Description like @Keyword
union
select p.PartNumber, p.Description, p.ServiceOrderable, '' as MyNotes, p.LargestAssembly,
p.DMM, p.Legacy, p.Folder, p.Printer
from Parts p
where p.Description like @Keyword
and the results:
PartNo Description SO Notes LA DMM Legacy Folder Printer
de90008 MAIN BOARD 1 DGF1 114688 0 0 0
de90008 MAIN BOARD 1 I love this part Really I do DGF1 114688 0 0 0
This could return multiple part numbers and If they have entered notes I want the row with the notes
Thank You
Dominic Mancl
What 's Difference Between Unique Key And Unique Index
Nov 13, 2007What 's difference between Unique key and unique index in SQL server 2005?
View 9 Replies View RelatedA Unique Unique Constraint
May 1, 2008Here is the table I created:
create table Test (
[recId] [int] identity(1, 1) not null,
[code] [varchar](50) not null,
[prime] [bit] not null constraint [DF_Test_prime] default (cast(0 as bit)),
constraint [PK_Test] primary key clustered
(
[recId]
) with fillfactor = 90 on [primary]
) on [primary]
go
insert into Test (code, prime) values ('AVA', cast(1 as bit))
insert into Test (code, prime) values ('BUS', cast(1 as bit))
insert into Test (code, prime) values ('BUS', cast(0 as bit))
insert into Test (code, prime) values ('BUS', cast(0 as bit))
insert into Test (code, prime) values ('CAR', cast(1 as bit))
insert into Test (code, prime) values ('CAR', cast(0 as bit))
insert into Test (code, prime) values ('RLW', cast(1 as bit))
insert into Test (code, prime) values ('RLW', cast(0 as bit))
insert into Test (code, prime) values ('RLW', cast(0 as bit))
select *
from Test
I need to create a constraint on this table that will not allow me to have two rows that are prime for the same code. So the following insert statement should fail:
-- This should fail
insert into Test (code, prime) values ('RLW', cast(1 as bit))
Thanks for you help!
Regards,
Anand
Rollback Will Drop Created Tables And Drop Created Tables In Transaction..?
Dec 28, 1999Hi folks.
Here i have small problem in transactions.I don't know how it is happaning.
Up to my knowldge if you start a transaction in side the transaction if you have DML statements
Those statements only will be effected by rollback or commit but in MS SQL SERVER 7.0 and 6.5
It is rolling back all the commands including DDL witch it shouldn't please let me know on that
If any one can help this please tell me ...........Please............
For Example
begin transaction t1
create table t1
drop table t2
then execute bellow statements
select * from t1
this query gives you table with out data
select * from t2
you will recieve an error that there is no object
but if you rollback
T1 willn't be there in the database
droped table t2 will come back please explain how it can happand.....................
Email Address:
myself@ramkistuff.8m.com
How To Drop PK?
Sep 5, 2001How can I drop Primary Key? If I do/don't have data in the table.Thanks!
Ravi.
Cant Drop
Apr 26, 2007Why can't I drop the database? Is this query correct Drop database databasename?
View 1 Replies View RelatedNeed Help In Drop UDD
Jul 28, 2007Dear Friends,
i want to drop UDD.which i have used in 1000 of sps and tables. it is impossible to drop all objects and create.so please give any sugessions.
Drop Last Bit
Sep 7, 2007Hi,
I have an sql script, which updates some values by using BIT operations..
ex:
UPDATE table1
SET myValue = myValue & ~mask | (availability - mask)...
Problem is, this returns a value, when written to binary, it's one bit too long!
ex:
0
1
1
1
1
1
(= 62)
which should be:
0
1
1
1
1
0
(=31)
How can I "drop" this last BIT?
(Keep in mind that I store these values as LONGINT's)...
Been fighting with this one all day..
Drop FK Constraints
Apr 30, 2000Hi folks,
Wonder if I'm onto something....everything I've read says that to drop foreign key constraints, you have to drop/recreate the table.
I've been able to dynamically create the ALTER TABLE statements for all FK constraints in a database. The way I did was a little convoluted (Access 97 linked tables and pass-through queries, cut/paste from the debug window to SQL7 QA), but it does work. More importantly, it saves the hassle of dropping/recreating tables....Someone with more expertise than I in using nested cursors could probably convert it to pure T-SQL pretty easily.
Just curious...opinions? Be glad to post the code here if that's appropriate.
Dan
DROP COLUMN
Feb 14, 2000Does anyone know why this does not work?
ALTER TABLE deal DROP COLUMN TestField
Server: Msg 170, Level 15, State 1, Line 1
Line 1: Incorrect syntax near 'TestField'.
Thanks,
Paul
Cannot Drop Object,,,,,,,,,,,help
Mar 2, 2000I am trying to drop some tables, but keep getting the message:
Msg 3702, Level 16, State 1
Cannot drop the table 'TABLE' because it is currently in use. But it is NOT IN USE. I tried to do an sp_who, and I'm the only one. Please help. Thank you.
Trying To Drop A Database
Aug 31, 2000I am trying to delete a database that is labeled suspect. Is there a way to force a drop of a database? It is shows it is marked inaccessible when trying to delete.
Thanks, Steve
How To Drop A Filegroup
Oct 19, 1999I am managing 120 gb SQL7 database. The 120 GB is in a RAID5 (Hardware RAID). At begining, I think I should create a user defined filegroup besides Primary filegroup, as BOL suggested.
After I read some discussions here, It appears I cannot gain any performance by adding second filegroups. Now I want to drop the filegroup I created. The Question is How?. If I do alter database, move all files from userdefined filegroup, does this mean my userdefined filegroup has gone?
Someone can help me on this!
Thanks a lot.
How To Drop The Daabase?
Jan 3, 2006I am trying to drop the database through the application designed using vb.net. Through login form i am logging into the database from the application. There is an option for the user to take the backup and restore the database using the application. I am able to take the backup of the database. To restore the database, i am dropping the existing database. I am unable to drop the database as an error message is being displayed saying that "Cannot drop the database, as it is currently in use". I tried to drop the database even by changing the database names in the connection string.
But i am unable to drop the database. If any one finds the solution for this please help me. Its very urgent.
Thanks and Regards,
sashirekha
How To Drop A Column?
Aug 30, 2006Hi:
'Unfortunately', there is still a SQL6.5 sp4 server that I need to handle.
I need to drop a coulmn xyz from an important table tblABC.
But neither Enterprise manager could do it nor
'alter table tblABC drop column xyz' could run.
Without the hastle of makin a tblABCcopy and copy all data from tblABC except column xyz and re-do all fks; is there another way to drop the column?
thanks
-D
Drop Down Menu
Jul 15, 2004How do you create a php or html page with a drop down menu from a table a database? Please show any code or helpful links,
Thanks!
Drop Indexes
Feb 14, 2006I have a database with many PK and FK constraints. Is there any script I can use to drop all indexes and rebuild them taking care of PK and dependencies? I am unable to drop them by tablename order. This is on MSSQLServer-2000 SP3. Any help is appreciated.
View 4 Replies View RelatedDrop The End Of An Ip Address
Mar 7, 2006does anyone know how to drop the last part of an ip address? I've been searching various sites for string functions and havn't come up with anything that works. What I want is something that will "find the third occurance of a "." and then return everything to the left of it"
I've tried various types of InStr and even found a SUBSTRING_INDEX function, but apparently it's only for mysql.
i'm using sql server and linking tables thru access
fisk
Can't Drop Constraint...?
Aug 30, 2006Hello, I have hit the wall here...can't make sense of this one.
I have a script that creates a PRIMARY KEY constraint called PK_tblDRG
CODE:
ALTER TABLE [dbo].[tblDRG]
ALTER COLUMN [record_id] Uniqueidentifier NOT NULL
Go
ALTER TABLE [dbo].[tblDRG]
WITH NOCHECK ADD PK_tblDRG PRIMARY KEY CLUSTERED
(
[record_id]
) WITH FILLFACTOR = 90 ON [PRIMARY]
All is fine with that. I run this to verify:
EXEC sp_pkeys @table_name = 'tblDRG'
,@table_owner = 'dbo' ,@table_qualifier = 'Relational_05Q3'
which returns this:
TABLE_QUALIFIERTABLE_OWNERTABLE_NAMECOLUMN_NAMEKEY_SEQPK_NAME
Relational_05Q3dbotblDRGrecord_id1PK_tblDRG
Now I want to drop the constriant if it exists:
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[PK__tblDRG]') and OBJECTPROPERTY(id, N'IsPrimaryKey') = 1)
ALTER TABLE [dbo].[tblDRG] DROP CONSTRAINT PK__tblDRG
AND I get this in return:
The command(s) completed successfully.
So, lets double check:
EXEC sp_pkeys @table_name = 'tblDRG'
,@table_owner = 'dbo' ,@table_qualifier = 'Relational_05Q3'
AND I STILL GET THIS:
TABLE_QUALIFIERTABLE_OWNERTABLE_NAMECOLUMN_NAMEKEY_SEQPK_NAME
Relational_05Q3dbotblDRGrecord_id1PK_tblDRG
Hmmmmm. Looks like the IF statement didn't do it's job. Ok fine. I'll just kill it myself:
ALTER TABLE [dbo].[tblDRG] DROP CONSTRAINT PK__tblDRG
AND I GET THIS?!?!?!?!
Server: Msg 3728, Level 16, State 1, Line 1
'PK__tblDRG' is not a constraint.
What am I not getting here? Is it me...I can take If I am a bone head here.
Any help would be appreciated. Thanks!
Drop Subscription
Dec 28, 2006is there anyone know how to drop subscription from the publisher database without a connection to the subscriber(because the subscriber server is formated)
View 3 Replies View RelatedDrop Down Lists
May 27, 2004I'm want to be able to choose(including multiple selections) names from a drop down list that are fetched from the database(from table "Employees") and add them to table "Biotechnology".
Employees(ID,FirstName,LastName)
Biotechnology(ID,EmployeeID)
**assuming that EmployeeID in "Biotechnology" is the ID from "Employees" table
Example: We add Employees.ID(23, 33) to Biotechnology.EmployeeID
would be
Biotechnology:
[ID] [EmployeeID]
01 - 23
02 - 33
Drag And Drop
Apr 10, 2008Hi,
I am using SQL Server 2005, trying to drag and drop a sql-query but it is not possible. This was possible before, what might be the cause?
Now, I have to open file, browse to the query and then it works but that is very time consuming. Would appreciate any suggestion.