Table Copy Misses Indexes
Sep 9, 2005
Hi,
I simply want to create a duplicate of an existing table with a
different name. I've tried the "select * into newtable from
orgtable", which works great, except that it doesn't mark the primary
key field from orgtable in the newtable. I tried creating the
newtable prior to using this select, but then sql server cries about
the table already existing. I tried creating the index after the
select "CREATE UNIQUE INDEX FieldAIndex ON newtable (FieldA)" - that
didn't give a error, but also failed to mark the field as primary.
Suggestions?
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Feb 4, 2008
Hi,
How can I copy a database table with all its data, indexes and constraints to a new table in the same database in sql server 2005
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May 4, 2001
Does anyone know a quick wat to copy indexes? BAscially I have 3 servers (Production, test and dvlp) and I need to make sure that all 3 are in sync with the indexes. I can manually duplicate them (not preferred) and I don't want to override any table data. I assume there has to be a way to just copy indexes with nothing else. At least I hope. Any assistance or suggestions that anyone has is appreciated
Thanks!
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Nov 13, 2006
The DTS Task Copy Server Objects is PAINFULLY slow.
The Copy Table Wizard is fast but generates an unmanagable DTS and does not bring over the indexes.
Any tips or tricks to copy tables, data and indexes and a reasonable speed?
Thanks,
Carl
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Jul 23, 2005
I would like some advice on a data and query problem I face. I have adata table with a "raw key" value which is not guaranteed to be validat its source. Normally, this value will be 9 numeric digits and map toa "names" table where the entity is given assigned an "official name".My problem is that I'd like to be able to identify data values that are"close" to being "correct". For example, in the case of anine digit number such as 077467881, I'd like to be able to identifyrows with values close to this raw string. That is, ifthere were a row with a value for this column that was "off" by say, atransposed single digit (such as 077647881 in this example)I would like to find a query to locate the "close candidates" in aresult set. If I can find rows having a raw keyvalue that is close to a "good key" then I can allow my user to useother criteria to possibly assign the "close key" asan alternate or alias of the official key. Here is part of my schema:CREATE TABLE MYData (StateCD char (2) NOT NULL ,CountyCD char (3) NOT NULL ,MYID int NULL ,RawNumString varchar(9) NULL ,SaleMnYear datetime NOT NULL ,NumberWidgets int NOT NULL ,)CREATE TABLE MYNames (MYID int IDENTITY (1, 1) NOT NULL ,OfficialName varchar (70) NOT NULL ,CONSTRAINT PK_MYNames PRIMARY KEY CLUSTERED(MYID))CREATE TABLE MYAltID (RawNumString varchar (9) NOT NULL ,MYID int NOT NULL ,CONSTRAINT PK_MYALTID PRIMARY KEY CLUSTERED(RawNumString) ,CONSTRAINT FK_HasName FOREIGN KEY(MYID) REFERENCES MYNames (MYID))So, how to generalize something like:SELECT * FROM MYData WHERE RawNumString = '077467881'OR RawNumString = '077647881'
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Apr 10, 2008
I have a fuzzy lookup task that compares a source list of contacts to a reference list of contacts with the default settings. I did some testing by adding seed data that I knew would produce somewhat high similarity hits. All of the seeded contacts but one came back with the expected high sim values. When I looked for the one that didn't, I noticed another match had come up but it had a very low similarity of .17. I then did some research and discovered the reason was the MaxOutputMatchesPerInput setting which was set to 1. I then set it to 3 and reran the package and sure enough my seeded contact that was missing before now showed up. I thought the best match would show up if the MaxOutputMatches was set to 1? That is not the case in my testing.
For example, Donna Mizeman was in the reference list. I added Don Miseman to the source list to seed it. The only match that came back was something like Dieman Abdul .... So the initial match had a similarity of .17 but when MaxOutputMatchesPerInput is set to 3 the best match (seeded) has a similarity of .72.
Anyone have an explanation for this?
-Mike
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Sep 23, 2015
My requirement is to sling a rowset from one place in SQL server into a table in another place in the most performant way. I want this to be parameterizable - I want to provide just a connection string and some SQL for the source and a connection string and a table name for the destination. The package should do the rest.Â
The solution I chose was an 2014 SSIS package with source and destination as ADO.NET connections configured from project variables. The package has a script task to bulk copy the data. For performance I disable the non-clustered indexes first.Â
But this performance precaution causes the bulk copy to timeout after delivering the correct rowcount to the destination table. What I can do to avoid this error?
Here's my script code:
//get hold of the source and a data reader from it
SqlConnection sqlconnSource = new SqlConnection();
sqlconnSource = (SqlConnection)(Dts.Connections["source"].AcquireConnection(Dts.Transaction) as SqlConnection);
SqlCommand sourcesqlCommand = new SqlCommand(SourceSQL, sqlconnSource);
sourcesqlCommand.CommandTimeout = 1500;
[Code] ....
This takes 128 seconds to put 13 million thin rows into my empty destination table and then throws an exception with this message:
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
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Jun 25, 2015
I have a requirement to only rebuild the Clustered Indexes in the table ignoring the non clustered indexes as those are taken care of by the Clustered indexes.
In order to do that, I have taken the records based on the fragmentation %.
But unable to come up with a logic to only consider rebuilding the clustered indexes in the table.
create table #fragmentation
(
FragIndexId BigInt Identity(1,1),
--IDENTITY(int, 1, 1) AS FragIndexId,
DBNAME nvarchar(4000),
TableName nvarchar(4000),
[Code] ....
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Mar 7, 2014
Why the Indexes on table slow down the DML operation on table, what is the exact reason?
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Jan 6, 2004
Hi there,
Can someone tell me if it is possible to add an index to a Table variable that is declare as part of a table valued function ? I've tried the following but I can't get it to work.
ALTER FUNCTION dbo.fnSearch_GetJobsByOccurrence
(
@param1 int,
@param2 int
)
RETURNS @Result TABLE (resultcol1 int, resultcol2 int)
AS
BEGIN
CREATE INDEX resultcol2_ind ON @Result
-- do some other stuff
RETURN
END
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Jan 9, 2008
Hi all,
The following dbo.Tables of Northwind.mdf in my .SQLEXPRESS (SQL Server Management Studio Express) are missing:
dbo.Categories
dbo.CustomerCustomerDemo
dbo.CustomerDemographics
dbo.Customers
dbo.Employees
dbo.EmployeeTerritories
dbo.Order Details
dbo.Orders
dbo.Products
dbo.Regions
dbo.Shippers
dbo.Suppliers
dbo.Territories.
But, I have these dbo.Tables in a different Database "xyzDatabase". How can I copy each of these dbo.Tables to the another blank dbo.Table of Northwind Database?
I right clicked on the dbo.Categories and I saw the following thing:
dbo.Categories
New Table...
Modify
Open Table
Script Table as |> CREATYE To |>
DROP To |>
SELECT To |>
INSERT To |> New Query Editor Window
File....
Clipboard
UPDATE To |>
DELETE to |>
From the above observation,I think it is possible to copy the dbo.Table from the one Database to the Northwind Database that needs to be repaired. Please help and advise me how to do this task or tell me where I can find the Microsoft document that gives the details of this X-copy thing.
Thanks in advance,
Scott Chang
P. S. I am using VB 2005 Express to create a project to learn "Calling Stored Procedures with ADO.NET" (see Paul Kimmel's article in http://www.developer.com/db/article.php/3438221) that needs the dbo.Tables of Northwind Database and my Northwind Database has been screwed up for quite a while and needs a big repair.
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Oct 6, 2006
Hi
I am using SQL Server 2005 Developer Edition.
I want a list of the following things from the database: -
Table Name , FileGroup Table resides on
Table Name, Index Name, FileGroup index resides on
To put it simply, consider the following example:-
Lets say I have a table XYZ in my database created on Filegroup F1. It has a PK PK1 nonclustered index on Filegroup F2.
List1
-------
XYZ F1
List2
---------
XYZ PK1 F2
Please do not tell me of sp_help <table> option
Regards
Imtiaz
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Jan 26, 2006
Just wondering if there is an easy transact statement to copy table 1 to table 2, appending the data in table 2.with SQL2000, thanks.
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Feb 18, 2007
I'm looking for information on how to add indexes to a table in a SQL Server 2000 Database, why add them etc? Any source of good information on the web regarding this?
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Sep 20, 2005
is there a way to drop all the indexes on a table other than listing them out separately in a drop index statement?
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Jul 1, 2014
I'm working to improve performance on a database I've inherited, and there are several thousand indexes. I've got a list of ones which should definitely exist within the database, and I'm looking to strip out all the others and start fresh, though this list is still quite large (1000 or so).
Is there a way I can remove all the indexes that are not in my list without too much trouble? I.e. without having to manually go through them all individually. The list is currently in a csv file.
I'm looking to either automate the removal of indexes not in the list, or possibly to generate the Create statements for the indexes on the list and simply remove all indexes and then run these statements.
As an aside, when trying to list all indexes in the database, I've found various scripts to do this, but found they all seem to produce differing results. What is the best script to list all indexes?
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Jun 8, 2004
Hello again,
Two Short questions this time,
I have a table with several indexes, currently most of them are very narrow (one column), and the question is, when I modify the table by updating a record, does all the indexes are calculated again?? Even if the modified field isn't indexed??? Or the server is smart and knows what indexes to calculate if any.
Second question, can I give to a query a low priority(In dynamic SQL), for example when I don't want my query to exploit too many system resources so it won't interfere the main system ?
Inon.
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Sep 1, 2006
How can I list indexes with a (SQL) query ?
Thanks
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Feb 8, 2007
Hi ALL,
Somehow one of tables in my database with clustered index got tempered and the pageid are not in proper order. I tried the checkdb command with repair_rebuild option but it is giving the following error.
Table error: Object ID 1984530649, index ID 1. Page (1:254682) is missing a reference from previous page (1:254681). Possible chain linkage problem.
Server: Msg 8936, Level 16, State 1, Line 1
Table error: Object ID 1984530649, index ID 1. B-tree chain linkage mismatch. (1:254680)->next = (1:256198), but (1:256198)->Prev = (1:256197).
Not able to reindex the index of table. I can not even export the data to any other table with same structure.
Please help me...........
Thanks,
Pracheer
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Jul 27, 2006
Hi,
Regarding to my previous post at http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=553652&SiteID=1, just wondering if there's a way to detect any changes which is made on the existing indexes in a published table so that the device can determine whether reinitialization of subscrption is needed before every synchronization.
Cheers,
Justin
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May 26, 2006
I used the option "Script Table" --> "Create to" in SQL Server Management Studio Express for a table with secondary index (like IX_IndexName), but in the .sql script file there is only the instruction for the primary key and not for the secondary (I expected something like CREATE INDEX). What can I do?
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Jun 27, 2007
In our environment we have a very high insert intensive OLTP table, this has 60 million rows. From some of our applications we are very rarely getting timeouts when inserting data into this table. We are expecting that this table would soon run into billion rows and continue to grow. below is the table description and indexes. What indexes should we keep/remove on this table?
Column Name Datatype computed Length Precision Scale Nullable
Col1 int no 4 10 0 no
Col2 smallint no 2 5 0 no
Col3 smallint no 2 5 0 yes
Col4 int no 4 10 0 yes
Col5 int no 4 10 0 yes
Col6 int no 4 10 0 yes
Col7 char no 10 yes
Col8 int no 4 10 0 yes
Col9 uniqueidentifier no 16 yes
Col10 datetime no 8 yes
Col11 smallint no 2 5 0 yes
Col12 varchar no 15 yes
Col13 varchar no 30 yes
Col14 varchar no 50 yes
Col15 int no 4 10 0 yes
Col16 int no 4 10 0 yes
Col17 varchar no 12 yes
Col18 smallint no 2 5 0 yes
Col19 smallint no 2 5 0 yes
Col20 int no 4 10 0 yes
Col21 bit no 1 no
Col22 int no 4 10 0 yes
Col23 bit no 1 no
Col24 bit no 1 no
Col25 datetime no 8 no
Col26 char no 6 yes
Col27 char no 6 yes
Col28 smallint no 2 5 0 yes
Col29 char no 2 yes
Col30 int no 4 10 0 yes
Col31 smallint no 2 5 0 yes
Col32 smallint no 2 5 0 yes
Col33 bit no 1 yes
Index1 nonclustered, stats no recompute located on FileGroup2 Col9, Col10, Col12
Index2 nonclustered, stats no recompute located on FileGroup2 Col9, Col12, Col11, Col10, Col4
Index3 nonclustered, stats no recompute located on FileGroup2 Col6
Index4 nonclustered, stats no recompute located on FileGroup2 Col6, Col4
Index5 nonclustered, stats no recompute located on FileGroup2 Col5, Col9
Index6 nonclustered, stats no recompute located on FileGroup2 Col4, Col9
Index7 nonclustered, stats no recompute located on FileGroup2 Col29
Index8 nonclustered, stats no recompute located on FileGroup2 Col9
Index9 nonclustered, stats no recompute located on FileGroup2 Col6, Col9
Index10 nonclustered, stats no recompute located on FileGroup2 Col7
Index11 nonclustered, stats no recompute located on FileGroup2 Col12
Index12 clustered, unique, primary key, stats no recompute located on FileGroup3 Col1
Any links to MS best practises on indexes for sqlserver 2000 appreciated.
thanks a lot in advance.
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Oct 1, 2001
How do I copy a column(or colums) from a table in one database to another table in a different database
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Jan 15, 2015
How to find if there is a query that can be written on DMV's which will be able to retrieve the indexes that are not being used in a table.
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May 26, 2015
I use Indexes Fundamentals of Microsoft SQL Server - Lesson 30: Indexes in the website of URL... to learn the basic things of Indexes. In my SQL Server 2012 Management Studio (SSMS2012), I executed the following code..
-- scFTX_CreateTableEmployees.sql
-- saved in C:/Documents/SQLServerIndexes_downloadCode
-- 26 May 2015 10:52 AM
USE ScottChangDB;
GO
CREATE TABLE Employees
[code]....
Where the SCHEMA and the index 'IX_Employees are located in the Object Explorer of the database "ScottChangDB" of my SSMS2012.Â
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Nov 23, 2007
Hi All,
I have 2 tables People & PeopleCosts.
PeopleID in People Table is the primarykey and foreign Key in PeopleCosts Table. PeopleID is an autonumber
The major fields in People Table are PeopleID | MajorVersion | SubVersion. I want to create a new copy of data for existing subversion (say from sub version 1 to 2) in the same table. when the new data is copied my PeopleID is getting incremented and how to copy the related data in the other table (PeopleCosts Table) with the new set of PeopleIDs..
Kindly help. thanks in advance.
Myl
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Aug 9, 2014
how to take backup of indexes for a particular table.
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Aug 9, 2014
How to take backup of indexes for a particular table.
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Sep 29, 2015
IS there a way to remove all indexes from a table with one single command ( without having to know what the index name is ) ;
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Mar 5, 2008
Dear all,
I'm using SQL Server 2005 Standard Edetion.
I have the following stored procedure that is executed against two tables (RecrodedCalls) and (RecordedCallsTags)
The table RecordedCalls has more than 10000000 Records and RecordedCallsTags is about 7500000 Records
Now the lines marked in baby blue are dynamic (Dynamic where statement) that varies every time this stored procedure is executed, may it contains 7 columns in condetion statement or may it contains 10 columns, or 2 coulmns.....etc
Now I want to create non-clustered indexes on the columns used in the where statement, THE DTA suggests different indexing whenever the where statement changes.
So what is the right way to created indexes, to create one index on all the columns once, or to create separate indexes on each columns, sometimes the DTA suggests 5 columns together at one if I€™m using 5 conditions, I can€™t accumulate all the possible indexes hence the where statement always vary from situation to situation, below the SP:
CREATE TABLE #tempLookups (ID int identity(0,1),Code NVARCHAR(100),NameE NVARCHAR(500),NameA NVARCHAR(500))
CREATE TABLE #tempTable (ID int identity(0,1),TypesCount INT,CallsType NVARCHAR(50))
INSERT INTO #tempLookups SELECT Code, NameE, NameA FROM lookups WHERE [Type] = 'CALLTYPES' ORDER BY Ordering ASC
INSERT INTO #tempTable SELECT COUNT(DISTINCT(RecordedCalls.ID)) As TypesCount,RecordedCalls.CallType as CallsType
FROM RecordedCalls LEFT OUTER JOIN RecordedCallsTags ON RecordedCalls.ID = RecordedCallsTags.CallID
WHERE RecordedCalls.ID <= '9369907'
AND (RecordedCalls.CallDate BETWEEN cast ('01 Jan 1910 00:00:00:000' as datetime ) AND cast ( '01 Jan 2210 00:00:00:000' as datetime ))
AND (RecordedCalls.Duration BETWEEN 0 AND 1000000)
AND RecordedCalls.ChannelID NOT IN('62061','62062','62063','62064','64110','64111','64112','64113','64114','69860','69861','69862','69863','69866','69867','69868')
AND RecordedCalls.ServerID NOT IN('2')
AND RecordedCalls.AgentID NOT IN('1000010000')
AND (RecordedCallsTags.TagID is null OR RecordedCallsTags.TagID NOT IN('100','200'))
AND RecordedCalls.IsDeleted='false'
GROUP BY RecordedCalls.CallType
SELECT IsNull(#tempTable.TypesCount, 0) AS TypesCount, CASE('English')
WHEN 'Arabic' THEN #tempLookups.NameA
ELSE #tempLookups.NameE
END AS CallsType FROM
#tempTable RIGHT OUTER JOIN #tempLookups ON #tempTable.CallsType = #tempLookups.Code
DROP TABLE #tempLookups
DROP TABLE #tempTable
Thanks all,
Tayseer
Any suggestions how to create efficient indexes??!!
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Sep 13, 2006
I have a table that is in a one way transactional publication. I need to create a full-text catalog on this table and have that catalog exist on the subscriber as well. I understand simply creating a FTC for an object in a publication will not cause that FTC to be replicated to the subscribers. I have scripted out the command and tried to use sp_addscriptexec to push it to the subscriber. When I do this, I get the following error:
Last 183 characters in 'sqlcmd' output buffer: Changed database context to 'database'.
Msg 574, Level 16, State 1, Server SQLSERVER, Line 2
CREATE FULLTEXT CATALOG statement cannot be used inside a user transaction.
Also, when this script is run directly from the subscriber, it works fine (but since the subscriber is our production machine, I'd prefer to not have to do it that way). I believe I can reinitialize the publication and have the FTC pushed to the subscriber, but this is not ideal either, since some of our databases can be very large and take a long time to initialize.
Is there a better way to accomplishing this other then connecting directly to the subscriber and running the script or by reinitializing the publication? Thanks for your help!
-mike
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Oct 1, 2014
Is there a performance limit on the number of indexes per table / database ? With Filtered indexes there appear to be many more opportunities for more finely defined, and therefore smaller indexes resulting in many more indexes on a single table.
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Jan 20, 2007
Hi allI have two tables in SqlServer with Exactly Same Structure,I want to Copy all Records fromone of them to another one.I came across to "Insert....select..." statement But i have two problem
1) I don't know any thing about Columns name!!! i just know they have same structure and as far as i know , "Insert...select..." need the Column list to operate correctly, am i right?
2) these two table have One Prinary Key column with IDENTITY feature.
Any Help Greatly appriciated.Regards.
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