SQL 2012 :: How To Set Primary Key And Index On Live Production Databases
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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Nov 29, 2014
Secondary server is offline due to a hardware issue and the log files are growing on Primary sever for availability databases. The log drive is running out of space. How can I stop the log growth for the primary databases?
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Jan 22, 2006
Do you know of anyone who is running SQL Server Express in a live production web server?
Thanks
WD
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Dec 3, 2007
I have a student who has a 100GB database that we need to have a R/W copy of in a Development environment.
It would be okay for the development system to have yesterday's data.
What would be the easiest solution for replicating the data.
Replication?
Log Shipping?
Backup/Restore?
Other Ideas?
Thanks in adavnce for the help.
Cheers,
Casey
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Jun 6, 2000
Hello everyone,
I have a question about how to efficiently develop on a development version of a database and get those changes over to the production database without loosing live data, etc.?
Here is how we are trying it:
1 Export production database to temp database(exact copy)
2 Delete production database
3 Export development database (definition only, no data) to new database with production database's name
4 Export production (temp) database (data only) over to new production shell
We are having truncate errors due to FK constraints.
Is there a better way?
Thanks for all help
Kevin
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Jul 1, 2015
We are adding 4-5 indexes to one database and dropping 2 unused indexes. I don't have proper testing environment. How to monitor these indexes changes? Do we need to run any baseline but we don't get load all the time same load all the days
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Apr 13, 2007
I have been testing my database application for a while now. As a result i have a lot of records already with their respective identity field values. What i want to do is to reset this field to 0 (zero) before i deploy the aplication. I have tried deleting all the records and entered one to see if the id will be 1 but it still starts from where it was before i deleted the records. Any ideas.
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Apr 30, 2012
I am working in a secured company which doesn't allow live internet connection, therefore I can't install SSDT using Web Platform Installer and we also don't want to install the intire 2012 client tools.
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Sep 30, 2015
I am using Full Text Index to index emails stored in BLOB column in a table. Index process parses stored emails, and, if there is one or more files attached to the email these documents get indexed too. In result when I'm querying the full text index for a word or phrase I am getting reference to the email containing the word of phrase if interest if the word was used in the email body OR if it was used in any document attached to the email.
How to distinguish in a Full Text query that the result came from an embedded document rather than from "main" document? Or if that's not possible how to disable indexing of embedded documents?
My goal is either to give a user an option if he or she wants to search emails (email bodies only) OR emails AND documents attached to them, or at least clearly indicate in the returned result the real source where the word or phrase has been found.
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Mar 5, 2015
I have a clustered index that consists of 3 int columns in this order: DateKey, LocationKey, ItemKey (there are many other columns in this data warehouse table such as quantities, prices, etc.).
Now I want to add a non-clustered index on just one of the other columns, say LocationKey, like this:
CREATE INDEX IX_test on TableName (LocationKey)
I understand that the clustered index keys will also be added as key columns to any NC indexes. So, in this case the NC index will also get the other two columns from the clustered index added as key columns. But, in what order will they be added?
Will the resulting index keys on this new NC index effectively be:
LocationKey, DateKey, ItemKey
OR
LocationKey, ItemKey, DateKey
Do the clustering keys get added to a NC index in the same order as they are defined in the clustered index?
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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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Aug 1, 2007
I currently have a SQL Server cluster setup with a Primary DB Server SERVER1 and the Standby server SERVER2. SERVER1 has been failing more than normal is the past few weeks and its takes upto 5 mins for SERVER2 realize that SERVER1 is down. I am looking for a better way to implement a backup server on production with minimum downtime. Please adivse..
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Jul 2, 2015
So I'm using the 2012 SSMS to connect to a SQL 2008 database, upon which we have code that audits all SQL logins to production and notifies us via email that someone is using logins they shouldn't. Mostly it's to notify us if people other than the DBAs are using these logins from their desktops instead of using their windows accounts.
This morning I opened up SSMS 2012, logged into my production servers in Object Explorer using Windows Auth. An hour later, I had to update an exception table, so I opened a new query with SQL Auth and used a SQL-only login it. Immediately the email pops that someone on my desktop is using a SQL Login. That's okay. That's expected.
What I didn't expect is that after I closed the query window, the email kept popping. The query window isn't even open / connected to production any more, but SQL still thinks I'm logged in using a SQL Login instead of with Windows Authentication (which is what I used on the Object Explorer connection).
Is there a bug with 2012 that causes a new connection type to affect all current connections? I.E., did it change my DB Windows Auth connection to SQL Auth on the other connection?
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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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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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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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Jan 29, 2014
Full Text Searches are working on my test server, but not on my production server. My test scenario is as follows:
CREATE FULLTEXT CATALOG FTC_Test
AS DEFAULT
AUTHORIZATION dbo
CREATE FULLTEXT INDEX ON guest.FtsTest(FullName)
KEY INDEX PK_FtsTest ON FTC_TestI wait briefly and then check to see if the index has been populated:
SELECT * FROM sys.fulltext_indexescrawl_end_date is not null,
So I'm assuming I don't have to wait anymore before I try some FTS searches. Right? I can't get any queries to return anything, though.
The following tells me the full text item count for the table is zero:
DECLARE @TableId INT
SELECT @TableId = id FROM sys.sysobjects WHERE [Name] = 'FtsTest'
SELECT OBJECTPROPERTYEX(@TableId, 'TableFulltextItemCount') AS TableFulltextItemCount
As mentioned, the full text search works on my test server. Both of them are SQL 20012 SP1 (11.0.3000) x64 running on WinServer 2008 R2 SP1.
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Dec 22, 2014
(SQL 2012 Standard)
I have a database with one 320 .mdf file and one 200GB .ndf file.
I would like to reconfigure my database to have four 200GB .mdf files. How do I get from here to there?
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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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