Rda Dropping Primary Key Index
May 2, 2007
I am using RDA to download a tables
I use TrackingOffWithIndexes
the issue is that when I download a small set of data the primary key index is there
when I download a larger set. the index gets dropped (no error) just slowness when querying the table
the max database size is set to 1024mb and the temp database size is set to 1024mb
the actual db size (with the missing index) is 262 mb... lot's of room left!
when I try to create the index manually after the download in sql server management studio I get this error:
Not enough storage is available to complete this operation
I am using 2GB sd cards and nothing else is on the card.
any ideas?
Regards,
eric [at] westgen com
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Aug 24, 2007
Hi all,
I have a huge table with million of rows, which has ONE Clustered index associated with the PRIMARY KEY, and there are some NON_Clustered indexes.
So,now i decided that, i dont need any more indexes ( not even one) on that table, but i need to maintain primary key on that table.
(a) So, how can i accomplish this (i.e.) having primay key but not having indexes on the table.
Thanks.
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Oct 2, 2015
I am trying to drop a primary key on column LID and then create a clustered index on a new identity column ID and then add the primary key back on the LID. I am not able to do so due the table being in replication. here is the error:
Cannot alter the table '' because it is being published for replication.
How do I get past the error and create the Clustered Index on ID column in both publisher and subscriber?
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Dec 7, 1999
Simple heres the syntax Alter Table XX Drop PRIMARY KEY.
This is not working whats up?
Thanks,
Phil
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Apr 9, 2003
I'm changing the collation sequence of a field which is a primary, clustered key field via:
ALTER TABLE [dbo].[clusterAlgorithm] WITH NOCHECK ADD
PRIMARY KEY CLUSTERED
(
[ClusterAlgorithmClassName]
) ON [PRIMARY]
GO
Is there a way to drop the primary key designation before doing an alter table/alter column statement and then recreating the key, or must I drop and recreate the table?
Thanks,
Al
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Jun 22, 2001
I am having trouble dropping constraints(Primary and Foreign Keys). I would like to do so so I can truncate the tables and repopulate them. Any time I use the DROP CONSTRAINT #### on one table, I get an error message saying this is referenced in another table. Any help in how to drop the keys so I can truncate the tables in a database would be appreciated. I must be overlooking something simple. Thanks for the help.
Regards,
Mark
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Oct 30, 2006
The table I am using have a column called Key which is the primary key of the table and a auto number. This primary key is not a foreign key in any other table.
I need to write SQL to drop the current primary key and add a new one Say "RecordId"
as the new primary key and which should be a autonumber too.
any idea.
thanks in advance
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Jan 28, 2008
hai
can anyone give me the syntax to drop a non clustered index
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Apr 4, 2011
I have a copy of this database table and the first thing I noticed was that the Primary Key was pretty much useless and there were no sensible indexes. Every query hitting this table ended up table scanning.So I thought I would try dropping the existing Primary Key constraint and then creating a more natural key that would make data retrieval quicker (hopefully). I understand that creating a clustered index on this table is going to take a long time as ALL the data will need to be reorganised (I estimate this will take at least 1 hour). However, just dropping the existing Primary Key constraint is taking forever.I can see that the server is doing a lot of disk reading/ writing and the wait type in Activity Monitor is PAGEIOLATCH_EX.I would have thought that just dropping a primary key would not change the data in the table, just delete the associated index.
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Sep 26, 2007
Hi,
I get a new payroll data file every two weeks. I have a DTS package that drops the table, creates a new table and then adds an index. The SQL task that checks for the exsistence of an index and then drops and creates a new one is failing. Here is the the SQL for the Execute SQL task
------------------------------------------------------------------------------------------------------------------------------------------
IF EXISTS (SELECT name FROM sysindexes
WHERE name = 'EmpPosTimePerEndDateIndex')
DROP INDEX dbo.EMP_POS_TIME_55_316_TBL.EmpPosTimePerEndDateIndex
GO
CREATE CLUSTERED INDEX EmpPosTimePerEndDateIndex
ON dbo.Payroll_TBL (PER_END_DATE)
GO
----------------------------------------------------------------------------------------------------------------------------------
This task fails and I get the error
Cannot drop the index 'dbo.EMP_POS_TIME_55_316_TBL.EmpPosTimePerEndDateIndex', because it does not exist in the system catalog.
But, SELECT name FROM sysindexes
WHERE name = 'EmpPosTimePerEndDateIndex' returns one record.???????
Maybe I created the index on a different table, but I don't know which one.
Any suggestions. How come sysindexes doesn't have a field for table to associate the index with?
Mike
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Jun 1, 2008
Hello there,I got a problem when I'm trying to Index a table with PrimaryKeyMy code so far:1 'Create my table2 nonqueryCommand.CommandText = "CREATE TABLE UpdateHistory (id integer IDENTITY(1,1) NOT NULL, version varchar(50) NOT NULL)"3 Console.WriteLine(nonqueryCommand.CommandText)4 Session("Tables") = Session("Tables") + "Number of Rows Affected with table UpdateHistory is: " + nonqueryCommand.ExecuteNonQuery().ToString + "<br />"5 6 'Set column id to Primary Key7 nonqueryCommand.CommandText = "CREATE INDEX idxid ON UpdateHistory (id) With PRIMARY"8 Console.WriteLine(nonqueryCommand.CommandText)9 Session("Tables") = Session("Tables") + "PrimaryKEY - Number of Rows Affected with table UpdateHistory is: " + nonqueryCommand.ExecuteNonQuery().ToString + "<br />"
I do get this error:System.Data.SqlClient.SqlException: Incorrect syntax near the keyword 'PRIMARY'. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at updates_100_2.Page_Init(Object sender, EventArgs e) in http://server//admin/NewSystem/1.0.0/2.aspx.vb:line 163Note: Line 163 is 9 here..
Anyone who can see what I'm doing wrong?
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May 17, 1999
Running SQL 6.5, using ActiveX controls(ADO and Datagrid),NT 4.0. All SP's
are current.
I lose the ability to get distinct values with a client-side cursor
after I set up a primary key. Select distinct works perfect before the
primary key creates an index. Any ideas?
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Dec 9, 2004
By defining a numeric field in table as primary key, will the table be indexed on that particular field?
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Apr 1, 2004
Hi,
I have a table in my SQL 2000 database called utContact, this has a primary called ContactID (int, idenitity), by default this should have a clustered index on it, but when I go to view the indexes on the table it shows the primary key index as non clustered.
How can this be?
SQL server also will not let me change the index to clustered, but I need to as this is causing a lot of table scans in query execution plans.
Any help or advice on this matter would be greatly appreciated.
Cheers
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Oct 28, 2006
Is there any way to change the value of a primary key value?
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Oct 9, 2007
Hi All,
One of my client having 1 million(nearly) records in a table.
I defined the table as below
1) Created table with one col(we can name it as "ID") having IDENTITY
2) Using "alter table", I created CLUSTERED PRIMARY KEY Constraint on Same field (ID)
3) The Primary key having 2 ref with another 2 tables
Now the issue is when we create or define a primary key (With Clustered Option) automatically cluster Index will be created on defined table
As such table having huge data whenever any updation or insertion against that particular table taking huge amount of time, because the cluster Index trying re-paging whole data. Because of re-paging each and every time "Transaction Log also growing in huge" (database is in full recovery mode and client wants in same mode only)
Data partitioning not posible because whole data related and current live data
I tried following options with vain
1) To Clear transaction log I suggested to take regular log backup's
2) I tried to drop cluster index and tried to implement non clustered index
Drop and re-create index is take taking huge amount of time
Even in this process I have to Re_Index remaining Index's also
Pls give me any other solution or suggestion in this regard
with Thanks & Regards
Bhaskara
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Apr 9, 2008
'PXQ_2' table
- Unable to delete index 'PK_PXQ'.
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]I/O error (bad page ID) detected during read at offset 0x0000000102e000 in file 'D:MSSQL2000MSSQLxxx.mdf'.
I can't drop Primary Key. How to fix this problem?
Hardware(HDD) no error. I test oke?
Please help me.
-= MIB =-
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Jan 28, 2008
Dear All,
i've read one article that with some option, we can avoid creating clustered index on the primary key column. is ti possible?
how can we create a primary key without allowing sql server to create automaticaly a clustered index?
Vinod
Even you learn 1%, Learn it with 100% confidence.
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Dec 11, 2007
Dear all,
I want to keep certain archive data in certain tables. One such table is currently about 190 GB in size. It has a primary key with clustered index and three non-clustered indexes. The type of queries fired are strictly selects (daily) and inserts (only monthly).
Question: Is it advisable to have a non-clustered index on the primary key column?.....I am finding that the insert performance is getting hurt due to presence of clustered index on such a large table (190 GB).
Let me know your views.
Regards,
Chetan
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Sep 5, 2007
Hi
I have a question regarding updating statistics for a primary key.
Background: An update statistics with fullscan is sometimes taking 30 minutes - the table is 80 million rows, with only 4 columns. The table is truncated, and then 80 million rows inserted all in one go.
Now why the update stats is taking that long is another question (I have no idea - any thoughts?), but my question is; Since you can't disable the "not automatically recompute statistics" option for a primary key, and you would think it would be imperitive for the stats to be kept up to date for a PK for inserts.... does this mean the stats would be kept up to date? and an update stat with fullscan isn't required?
Hope someone can help
Thanks
James
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May 30, 2000
I created table and also I define the primary key its okay
but when I generate the SQL script for that table its not
creating the primary key
CREATE TABLE [dbo].[table1] (
[emp_id] [int] NOT NULL ,
[emp_name] [char] (25) NULL ,
[emp_address] [nvarchar] (50) NULL
) ON [PRIMARY]
GO
PS: I want to use emp_id as primary key but its not defined in the sql script
Thankx a lot
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Apr 22, 2003
indid =1 works, is this the correct way
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Feb 23, 2006
my table :
CREATE TABLE [dbo].[users] (
[ID] [int] NOT NULL ,
[A1] [nvarchar] (100) NULL ,
[A2] [nvarchar] (100) NULL ,
[A3] [nvarchar] (100) NULL
) ON [PRIMARY]
i must keep ID columns as primary key
ALTER TABLE [dbo].[users] WITH NOCHECK ADD
CONSTRAINT [PK_users] PRIMARY KEY CLUSTERED
(
[ID]
) ON [PRIMARY]
but now A1+A2 must be unique
how can i do it ?
thank you
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Dec 17, 2006
for MS SQL 2000
how can I do this in one time (into the CREATE TABLE)
CREATE TABLE [dbo].[Users] (
[id_Users] [int] NOT NULL ,
[Name] [nvarchar] (100) NULL,
[Serial] [nvarchar] (100) NULL,
) ON [PRIMARY]
ALTER TABLE [dbo].[Users] WITH NOCHECK ADD
CONSTRAINT [PK_Users] PRIMARY KEY CLUSTERED
(
[id_Users]
) ON [PRIMARY]
CREATE UNIQUE INDEX [IX_Users] ON [Users]([Serial]) ON [PRIMARY]
and that one
CREATE TABLE [dbo].[UsersExtra] (
[id_Users] [int] NOT NULL
) ON [PRIMARY]
ALTER TABLE [dbo].[UsersExtra] ADD
CONSTRAINT [FK_UsersExtra_Users] FOREIGN KEY
(
[id_Users]
) REFERENCES [Users] (
[id_Users]
) ON DELETE CASCADE
thank you
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Aug 10, 2007
Hallo,
Following scenario:
Table1 with column: Year char(4), Quarter char(1), ID decimal(10,0), Hits int
PK_table1 on Year,Quarter,Hits
If i do a "Select Year From table1 group by Year", the executionplan looks like
select year from dbo.table1 group by year110NULLNULL1NULL4NULLNULLNULL86,21644NULLNULLSELECT0NULL
|--Stream Aggregate(GROUP BY:([Testdb].[dbo].[Table1].[YEAR]))121Stream AggregateAggregateGROUP BY:([Testdb].[dbo].[Table1].[YEAR])NULL406E-061186,21644[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW01
|--Parallelism(Gather Streams, ORDER BY:([Testdb].[dbo].[Table1].[YEAR] ASC))132ParallelismGather StreamsORDER BY:([Testdb].[dbo].[Table1].[YEAR] ASC)NULL800,028547491186,21643[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW11
|--Stream Aggregate(GROUP BY:([Testdb].[dbo].[Table1].[YEAR]))143Stream AggregateAggregateGROUP BY:([Testdb].[dbo].[Table1].[YEAR])NULL803,6248431186,18788[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW11
|--Clustered Index Scan(OBJECT:([Testdb].[dbo].[Table1].[PK_Table1]), ORDERED FORWARD)154Clustered Index ScanClustered Index ScanOBJECT:([Testdb].[dbo].[Table1].[PK_Table1]), ORDERED FORWARD[Testdb].[dbo].[Table1].[YEAR]1,449936E+0774,588317,9747291182,56304[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW11
Now, with another index IX_Hits on hits and the same sql query, sql server now takes IX_Hits instead of PK_table1. And, it takes more time. Any idea why?
select Year from dbo.table1 group by Year110NULLNULL1NULL4NULLNULLNULL85,54985NULLNULLSELECT0NULL
|--Sort(DISTINCT ORDER BY:([Testdb].[dbo].[Table1].[YEAR] ASC))121SortDistinct SortDISTINCT ORDER BY:([Testdb].[dbo].[Table1].[YEAR] ASC)NULL40,011261260,0001374511185,54985[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW01
|--Parallelism(Gather Streams)132ParallelismGather StreamsNULLNULL800,028507491185,53845[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW11
|--Hash Match(Partial Aggregate, HASH:([Testdb].[dbo].[Table1].[YEAR]), RESIDUAL:([Testdb].[dbo].[Table1].[YEAR] = [Testdb].[dbo].[Table1].[YEAR]))143Hash MatchPartial AggregateHASH:([Testdb].[dbo].[Table1].[YEAR]), RESIDUAL:([Testdb].[dbo].[Table1].[YEAR] = [Testdb].[dbo].[Table1].[YEAR])NULL8049,63581185,50995[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW11
|--Index Scan(OBJECT:([Testdb].[dbo].[Table1].[IX_Table1_Hits]))154Index ScanIndex ScanOBJECT:([Testdb].[dbo].[Table1].[IX_Table1_Hits])[Testdb].[dbo].[Table1].[YEAR]1,449936E+0727,899427,9747291135,87415[Testdb].[dbo].[Table1].[YEAR]NULLPLAN_ROW11
Thank You!!
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Apr 15, 2015
Is index created on only primary key or it can be created on secondary key ?
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Jul 23, 2005
Is that possible on SQL Server 2000 and onwards?
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Jul 18, 2007
Hi,
I have created a very simple table. Here is the script:
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[IndexTable]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[IndexTable]
GO
CREATE TABLE [dbo].[IndexTable] (
[Id] [int] NOT NULL ,
[Code] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
) ON [PRIMARY]
GO
CREATE CLUSTERED INDEX [CusteredOnCode] ON [dbo].[IndexTable]([Id]) ON [PRIMARY]
GO
ALTER TABLE [dbo].[IndexTable] ADD
CONSTRAINT [PrimaryKeyOnId] PRIMARY KEY NONCLUSTERED
(
[Id]
) ON [PRIMARY]
GO
The records that i added are:
Id Code
1 a
2 b
3 aa
4 bb
Now when i query like
Select * from IndexTable
I expect the results as:
Id Code
1 a
3 aa
2 b
4 bb
as i have the clustered index on column Code.
But i m getting the results as:
Id Code
1 a
2 b
3 aa
4 bb
as per the primary key order that is a non clustered index.
Can anyone explain why it is happening?
Thanks
Nitin
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Oct 8, 2007
Question: I have a test table like this
CREATE TABLE [dbo].[Test](
[name] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[addr] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
CONSTRAINT [PK_Test] PRIMARY KEY CLUSTERED
(
[name] ASC
)WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
But when I tried to input my data like
'abc', '123 abc'
'abc ','123 abc'
SQL server won't recognize 'abc' and 'abc ' is a different value if the last character is a space. Is there a way to make it as a different value? I tried to drop the primary and input the data. When I ran a group by the name column, 'abc' show 2 instead of 1. Seems SQL server is trying to ignore the space at the end too.
I also noticed unique index have the same problem too. Please help.
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Aug 10, 2015
What is the difference between the Index and the Primary Key?
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May 12, 2008
I'm working with a legacy database whose structure I cannot change. I'm building a web-based editor for one of the DB's tables. This table has a Primary Key called "Master_Idx" that is an Identity (autonumber) field.To start, I query the DB and populate a data table which is cached. This is used to "feed" the web form. Any additions, changes, and deletions are reflected in this cached table.The user then has the flexibility to press Save at any time, which ensures that the database is modified accordingly.Here's my question:When new records are added, I assign them a Master_Idx value, the first of which was calculated to be 1 + the Max(Master_Idx) value when the editing session started. But when I insert these records back into the database it's possible that another user might have also been doing similar editing (of different records from the same table), so there's no guarantee that the Master_Idx values in the data table will be identical to those in the DB. When I insert a record from the cached table back into the DB, what technique can I use to check what value was assigned to the Master_Idx? If it's not the same as in the cached table then I need to update it locally in a few places.I hope all of this makes sense but if it doesn't then let me know and I'll explain it in another way.Robert W.
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May 27, 2002
Hi,
I am making a program in Visual Basic .NET with SQL Server 2000.
I have a table "MyTable" with a primary key named "Id". The primary key is 'Create Unique' checked and 'Index' selected. When I insert all the fields required, except "Id" of course, I need the new record's "Id" in my VisualBasic program, but I don't know how...
I must do one of them, but don't know how either of them:
-Create a trigger on insertion that will send to the user that sended the insert command the "Id" of the record just created.
or
-get the command in Visual Basic that will send the Insert command with a return field ("Id")
Thanks in advance,
Sebastien Anselmo
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Mar 20, 2014
just i see a database and a table 'tbl_OutBox_MT' where there is now primary key and have index (non unique, non cluster). and it store almost 3000000 data per everyday. and wipe out data from their and archive all data to other location and broadcast this table 'tbl_OutBox_MT' by mobile operator everyday from morning to evening. but when it perform broadcast it to mobile operator it takes huge time. because this table gather data from different sources (tables) by using complex query and INSER INTO statement and insert into this table.
I need to perform first, my observation is there is no primary key. when i run any complex query into this table it takes huge time and sometimes shows transaction deadlock error.
CREATE TABLE [dbo].[tbl_OutBox_MT](
[TRAN_ID] [varchar](36) NOT NULL,
[OUT_MSG_ID] [int] IDENTITY(1,1) NOT NULL,
[OUT_MSG_ID_TELCO] AS (CONVERT([bigint],((((CONVERT([varchar](4),datepart(year,[PROCESS_TIME]),(0))+case len(CONVERT([varchar](2),datepart(month,[PROCESS_TIME]),(0))) when (1) then '0' else '' end)
[code]....
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