Index In SQL 2005
Mar 21, 2007how do you create an index in SQL over the Student table to lookup for example by last name and what is the syntax for the SQL lookup statement.
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Difference Between Index Seek && Index Scan && Index Lookup Operations?
Oct 20, 2006please explain the differences btween this logical & phisicall operations that we can see therir graphical icons in execution plan tab in Management Studio
thank you in advance
Sql Server 2005 Compact Edition 3.1 RDA Synchronization Fails On Table With Index In Sql Server 2005 Database
Jan 21, 2008We have been using Sql Server 2005 Compact Edition 3.1 RDA synchronization method successfully on Sql Server 2000 database. Recently we moved the database to Sql Server 2005, sync doesn't work anymore, it just hangs on one table. On further investigation, we found out that it's the index on that table that causes this. We removed the index, it works fine. We are wondering the root cause, removing the index is not a solution for us. Any thoughts?. Thanks.
View 1 Replies View RelatedSql 2005 - Optimization - Cannot Use Index
Jan 26, 2007I have a very very strange situation with a particular application and sqlserver 2005 enterprise.This application combines numerical data from multiple tables. User can makequery over this kind of tables, can build queries with "group by" "order by"and "join", "sum, count(*) ecc. on many many columns.I cannot know the query that application is going to build, so I do not knowhow to create indexes.I cant make indexes on all the columns of course, so I'm creating some indexover columns that should be statistically used in the join, but when thereis a group by on a column chosen from the user, I realize that the planbecome non efficient with the famigerate "TABLE SCAN".Can somebody, give me an idea, to optimize this situation.ThanxMassimo
View 4 Replies View RelatedUnique Index, SQL 2005
Jan 30, 2008
Is there a simple way to find properties of an index for a table? Specifically I am looking for the unique property. I currently have code to to do this, however I feel like there must be some easier way.
I am using .net 2005 and SQL 2005 coding in c#. Thanks for any help!
Code Snippet
_conn.Open();
SqlCommand cmd = new SqlCommand("sp_helpindex", _conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@objname", "TABLENAME"));
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(results);
foreach (DataRow row in results.Tables[0].Rows)
{
ArrayList names = new ArrayList();
DataTable dtUnique = new DataTable();
SqlCommand cmd2 = this._conn.CreateCommand();
cmd2.CommandText = String.Format("SELECT INDEXPROPERTY(OBJECT_ID('TABLENAME'), 'INDEXNAME', 'IsUnique') AS isUnique");
dtUnique.Load(cmd2.ExecuteReader());
bool unique = Convert.ToBoolean(dtUnique.Rows[0]["isUnique"]);
if (unique)
names.Add(tableName);
}
_conn.Close();
2005 Index Maintenance Information
Jul 24, 2006Hi,
Does anyone here know of any on-line references on how to optimize index maintenance in sql 2005? Also do you know of any good DBA books that will explain database maintenance and or best practices?
Thanks.
:D
Interpreting Index Statistics On SQL 2005
Nov 28, 2006I ran the DBCC SHOW_STATISTICS command for all of my indexes; I was told that high density numbers are bad, low numbers good. I have some questions about my results, though; I'm not sure how to interpret them.
Of 48 indexes, 14 have a density of 0. Does this mean that the indexes are not selective enough? Does it mean they're garbage and I should toss them?
6 have a density of NULL. They are all primary keys. I suppose this just means that they're never used because these tables are rarely queried. Would this assumption be correct?
13 have a density of 1. I have no idea what this means.
The others have densities ranging from 0.01210491 to 0.5841165. I was told that the lower this number is, the more selective and thus more useful an index is. I think 0.5841165 is too high a number. Would this be correct?
Thanks in advance.
SQL 2005 JOB Contains Rebuild Index Failing
Dec 4, 2007SQL Server 2005 version: 2153
I created a maintplan for system and user databases includes rebuild index, maint cleanup tasks.
Job is failing for user databases
It includes rebuild index task( online index enabled) and maintenance cleanup task, scheduled at every sunday 1 AM.
I receive following errors:
In eventvwr log
sql server scheduled job 'DBMP_RebuildIndex_User'
status: failed-Invoked on 2007-12-02 -1:00 Message: The job failed. The job was invoked by schedule 8 ('DBMP_RebuildIndex_User-Schedule).The last step to run was step1 ('DBMP_RebuildIndex_User')[/red]
In log report:
Failed:(-1073548784) Excuting the query "ALTER INDEX [XPKact_log] ON
[dbo].[act log] REBUILD WITH (PAD_INDEX=OFF,
STATISTICS_NORECOMPUTE=OFF,ALLOW_ROW_LOCKS=ON,ALLOW_PAGE_LOCKS=ON,SORT_IN_TEMPDB=OFF,ONLINE=ON)
"failed with the following error "Online index operation cannot be performed for index 'XPKact_log' because the index contains column 'action_desc' of data type text, ntext.image.varchar(max),varbinary(max) or xml. For non clusterd index the column could be an include column of the index. for clusterd index it could be any column of the table .Incase of drop_existing the cloumn could be part of new or old index. The operation must be performed offline". Possible failure reasons : Problems with the querey .'" Resultset" property not set correctly, parameters not set correctly, or connection not established correctly.
Please anyone help me on this?
I really appriciate
Thnks
SQL 2005: DTA, Recommendation For Non-clustered Index
Apr 2, 2007
I would like to have some clarification about index-related recommendation from Database Tuning Advisor.
Let me describe the scenario first:
There is a table with clustered index defined on ID column of type INT and there are other columns of varchar/int types as well. Now when I run tuning advisor I get recommendations related to creating statistics as well as non-clustered indexes. When I view the syntax for recommended non-clustered index, sometime it explicitly add ID column as well which already has clustered index defined on it. e.g
CREATE NONCLUSTERED INDEX idx_TableName_IndexName ON dbo.TableName
(
ColName1 ASC,
ColName2 ASC,
ID ASC
)
My understanding is that for each non-clustered index, clustered index is automatically a part of it and that is how non-clustered index retrieve the actual data. I have seen it more often than not in DTA's recommendation to include clustered index column somewhere among columns for indexing for so many of my tables.
I can understand if the recommendation was to INCLUDE clustered-index column.
I would appreciate if someone out there could help me to understand what I am missing here.
Index Reported As Corrupt After Upgrading To 2005
Oct 30, 2006After upgrading a server from SQL Server 2000 to 2005,
an index was suddenly being reported as corrupt in the SQL Server log
(probably every time an Insert was done). DBCC CHECKDB / CHECKTABLE
reported no errors, with or without the new WITH DATA_PURITY option.
Anyone else experienced something similar?
How can an index be reported as corrupt when DBCC doesn't report it?
Dropping and re-creating the index solved the problem.
I've restored a backup of the database (made before dropping/re-creating
the index) to try repeating the problem, but no success so far.
Why Does The Index Lock My Updates In SQL Server 2005?
Mar 28, 2006When one process has one record locked in Update-Mode then an other process can't update any other records on that table with some queries, other queries that access the same records (but with a different WHERE statement) will execute.
This problem occurs with SQL Server 2005, but it didn't with SQL Server 2000 (or any other database).
The problem:
-Process 1 locks a record in the table, and keeps it in Update-Mode, because the user is editing it. (Using OLEDB Pessimistic Cursor-locking)
-Process 2 wants to update an other record, buts gets a "Lock timeout" when using one query but not with another.
For example this query will work :
UPDATE gwseqnumber SET nextseqnr = 3 WHERE row_id = 110;
But this qeury will give me a "Lock timeout" :
UPDATE gwseqnumber SET nextseqnr = 3 WHERE name = 'REC_2';
But it is the same record!!
The record with name = 'REC_2' has the row_id = 110, both values are unique in the table.
The data:
The table [gwseqnumber] has the following CREATE statement:
CREATE TABLE GWSEQNUMBER
(
NEXTSEQNR INTEGER,
NAME CHAR (20),
ADMINISTRATIONCODE INTEGER,
FINDHIGHESTNUMBER CHAR (1),
CLOSEDYN CHAR (1),
ROW_ID INT IDENTITY(1,1) NOT NULL
);
CREATE INDEX KEY_1 ON GWSEQNUMBER (NEXTSEQNR);
CREATE UNIQUE KEY_2 ON GWSEQNUMBER (ADMINISTRATIONCODE, NAME, IDENTIFIER);
CREATE UNIQUE INDEX KEY_3 ON GWSEQNUMBER (ROW_ID);
Both KEY_2 and KEY_3 are unique, KEY_1 is not.
If I remove the index on the NEXTSEQNR column (the index named KEY_1) then both these queries will work, so it is obviously related to the index.
Altough the index is obsolete and can be removed from this table, it should not result in bogus locking errors.
Even when i removed the index not all the queries will work. (With work i mean not run into a locking error, while the record is not even locked.)
Solutions tried:
- Set the compaitiblity level of the databsae back to 80 (for SQL Server 2000 compatibility).
- I have already tried to disable Page-Locking on all the indexes of this table.
So why does the index lock my updates in SQL Server 2005?
And how do i fix it so my database does not run into these locks?
SQL Server 2005 : Piecemeal Restore With Fulltext Index
Mar 27, 2008Hi,
I have a problem restoring a Read-Only filegroup in a database.
I've restored the Read/Write filegroups first without any problem.
Then, I am able to recover Read-Only filegroups which do not contain fulltext indexes with the command :
RESTORE DATABASE GSM FILEGROUP = 'FG_RO_20080214' WITH RECOVERY
However, for filegroups containing FullText indexes (Fulltext indexes are in the same filegroup as data used for this index), I always get the following error :
Server: Msg 3149, Level 16, State 6, Line 1
The file or filegroup "sysft_CAT_SM_20080127" is not in a valid state for the "Recover Data Only" option to be used. Only secondary files in the OFFLINE or RECOVERY_PENDING state can be processed.
Server: Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
If I'm looking at sys.database_files catalog view, I can see the following
name type_desc state_desc
------------------------ ----------- -----------------
sysft_CAT_MS_20080127 FULLTEXT RECOVERY_PENDING
Does anyone have an idea, please.
Thanks in advance
Patrick
SQL 2005 Index Issue – General Network Error
Jan 2, 2007Info: CE.Net 4.2
CF 2
SQL Server 2005
First of all, sorry for the cross post but i need a quick answer on this.
I am executing a CLR Stored Procedure from a Windows Mobile device and regularly get a general network error.
The stored procedure cycles through up to 70 tables, checking for any records between two dates. The LastUpdate field is in each one of the 70 tables and is indexed.
The mobile device regularly reports general network error, which is due to a timeout. Command timeout is now set to 10 minutes but the timeout still occurs.
The stored procedure appears to get stuck on a particular table. If I rebuild the index on this table, it will get past it but then get stuck on the next table.
I set up a maintenance plan to run every 5 minutes (extreme, I know!) but the indices would appear to corrupt (without any activity on the table) in less than this interval.
However, running the exact same query from SQL Server Management Studio works correctly every time and usually within 10 seconds.
I€™m sure that it has something to do with the indices but cannot seem to resolve the issue. It€™s even more confusing how only the mobile device is affected!
Any help or advice would be greatly appreciated.
SQL 2005: Query Is Not Using Non-clustered Index! Need To Avoid Hints!
Oct 26, 2006Greetings,
I have two tables:
CustomerOrder
----
ID
CustomerID
StatusID
CustomerOrderDetail
----
ID
Order_ID
StockID
Quantity
CustomerOrderDetail table has clustered unique index for ID and non-clustered for Order_ID
SQL Server 2005 is using table scan for CustomerOrderDetail table When I user the following query:
select
cod.*
from CustomerOrder co
inner join CustomerOrderDetail cod ON cod.Order_ID = co.ID
where
co.StatusID = 8 -- Pending
Both of the tables are pretty big, detail table has more than million records, so scanning the table is a bad idea.
When I specify hint to use index then sql seeks, but how do I make SQL server to use index automatically? I don't want to use hints in my queries.
Thanks!
Creating A Full Text Index From Management Studio 2005?
Mar 13, 2008
I know how to create it from the query window:
CREATE FULLTEXT INDEX ON table_name
[(column_name [TYPE COLUMN type_column_name]
[LANGUAGE language_term] [,...n])]
KEY INDEX index_name
[ON fulltext_catalog_name]
[WITH
{CHANGE_TRACKING {MANUAL | AUTO | OFF [, NO POPULATION]}}
]
But where and how can I create it graphically in management Studio for 2005?
Thanks for any help or information.
SQL Server 2005; Unique Constraint, Covering Index Question
Aug 9, 2006Hi,
When I create a unique constraint, SQL Server automatically creates an index on this constraint. So when I run the following...
ALTER TABLE PersonsProjects
WITH NOCHECK ADD CONSTRAINT NoDupes UNIQUE NONCLUSTERED (PersonID, ProjectID)
...SQL Server will create a composite index on PersonsProjects called NoDupes on PersonIDand ProjectID. Thing is, I need this index to include a third column Status since most queries use this column in conjunction with PersonID and ProjectID. If there was no index on this table, I would have created it as follows:
CREATE UNIQUE INDEX NoDupes ON PersonsProjects (PersonID, ProjectID) INCLUDE (Status) WITH IGNORE_DUP_KEY
But this won't enforce the unique constraint on PersonID and ProjectID when performing inserts and updates. Is there any way of creating a unique constraint with an included column?
I would rather not have two indexes...
NoDupes: PersonID,ProjectID
New Index: PersonID,ProjectID INCLUDE Status
...so I'm trying to determine what other options that might be available...please advise.
Thanks much.
How Do I Set Access 2002 Upsizing Wizard To Create Clustered-index On SQL 2005
Jun 3, 2006Here is an extract from the Acc2Sql2.doc >>
By default, the Upsizing Wizard
transfers all indexes as nonclustered indexes. You can modify the Upsizing
Wizard to transfer the primary key index to a clustered index. To make this
change, start Microsoft Access and open the upsizing wizard library database.
For Microsoft Access 95, the filename is Wzcs.mda. For Microsoft Access 97, the
filename is Wzcs97.mda. When the database is open, click the Modules tab and open the
UT_ModUserConstants module. Search down to the UT_CLUSTERED constant. Change
the default value from False to True.
<<< end quote
Question: I am using ACCESS 2002 upsize wizard, I searched my computer for *.mda and could not find any wzcs*.mda. How do I set it so that it creates clustered-index instead of non-clustered-index?
Can I Enable Full Text Index On A Database From Within Visual Studio 2005?
Nov 18, 2007Hi,
I have visual studio 2005 with the sql server express edition that is installed by default when installing vs2005.
I am used to work from within vs when I want to create and work with databases for my web sites (I dont have visual manager installed).
I would like to enable full text search on a table's column.
Is there an easy way to do that from within vs or is it necessary to install another copy of sql server express with advanced services as well as sql server managment studio express?
How can I know if full text search is enabled?
Thanx in advance!
Converting DB2 Timestamp Data To SQL Server 2005 - Problems With Unique Index
May 24, 2007I am attempting to move a timestamp data column from DB2 to SQL Server 2005. Normally not a big deal but the column is part of unique index.
The DB2 timestamp has seconds of ss.ssssss but SQL Server only has ss.sss.
Most all the times entered into this column are a from an automated process so they are really close together timewise.
Here is what I have come up with so far:
1. Fast Load OLEDB with a batch of 10,000 records at a time
2. On the fail of the batch redirect rows to a regular table load OLEDB insert task
3. On the fail of the single insert redirect rows to script that ups the seconds one tick.
4. Attempt one last insert of the modified rows
5. If fail, then store the record off to a delimited text file
I am hoping to get the number of records that wind up in the delimited text file to be a very small number and not in the 1,000+.
Any help would be appreciated.
Language Error When Creating FULLTEXT INDEX By Using SQL Server 2005 Management Express!
Apr 12, 2007Hello..
When I used Microsoft SQL Server 2005 Management Studio Express to Create FULL TEXT INDEX by this code:
CREATE FULLTEXT INDEX ON txtfilestbl(txtfile) KEY INDEX PK_txtfilestbl ON ForumsArchiveLibCtlg WITH CHANGE_TRACKING AUTO
It returns this ERR MSG:
Informational: No full-text supported languages found.
Informational: No full-text supported languages found.
Msg 7680, Level 16, State 1, Line 1
Default full-text index language is not a language supported by full-text search.
I Use same this code to create FULL TEXT INDEX by using Microsoft SQL Server 2005 Management Studio, and it was working properly.
What I have to do?
SQL 2012 :: Full Text Index How To Make It NOT To Index Embedded Or Attached Documents
Sep 30, 2015I 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.
Clustered Index On Client_ID+ORderNO+OrdersubNo, If I Create 3 Noncluster Index On Said Column Will It Imporve Performance
Dec 5, 2007
Dear All.
We had Teradata 4700 SMP. We have moved data from TD to MS_SQL SERVER 2003. records are 19.65 Millions.
table is >> Order_Dtl
Columns are:-
Client_ID varchar 10
Order_ID varchar 50
Order_Sub_ID decimal
.....
...
..
.
Pk is (ClientID+OrderId+OrderSubID)
Web Base application or PDA devices use to initiate the order from all over the country. The issue is this table is not Partioned but good HP with 30 GB RAM is installed. this is main table that receive 18,0000 hits or more. All brokers and users are using this table to see the status of their order.
The always search by OrderID, or ClientID or order_SubNo, or enter any two like (Client_ID+Order_Sub_ID) or any combination.
Query takes to much time when ever server receive more querys. some orther indexes are also created on the same table like (OrderDate, OrdCreate Date and Status)
My Question are:-
Q1. IF Person "A" query to DB on Client_ID, then what Index will use ? (If any one do Query on any two combination like Client_ID+Order_ID, So what index will be uesd.? How does MS-SQL SERVER deal with these kind of issues.?
Q2. If i create 3 more indexes on ClientID, ORderID and OrdersubID. will this improve the performance of query.if person "A" search record on orderNo so what index will be used. (Mind it their would be 3 seprate indexes for Each PK columns) and composite-Clustered index is also available.?
Q3. I want to check what indexes has been used? on what search?
Q4. How can i check what table was populated when, or last date of update (DML)?
My Limitation is i Dont Create a Partioned table. I dont have permission to do it.
In Teradata we had more than 4 tb record of CRM data with no issue. i am not new baby in db line but not expert in sql server 2003.
I am thank u to all who read or reply.
Arshad
Manager Database
Esoulconsultancy.com
(Teradata Master)
10g OCP
Integration Services :: Rebuild Index / Refresh Index And Stats Improves Ssis Package Performance
Oct 28, 2015My SSIS package is running very slow taking so much time to execute, One task is taking 2hr for inserting 100k records, i have disabled unused index still it is taking time.I am rebuilding/Refreshing indexes and stats once in month if i try to execute on daily basis will it improve my SSIS Package performance?Â
View 2 Replies View RelatedIndex Was Out Of Range. Must Be Non-negative And Less Than The Size Of The Collection. Parameter Name: Index
Jan 22, 2006Keep getting this error when positioning to the last page of a report.
Using Server 2003...SqlRpt Svcs 2000 sp2
Detail error msg:
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown. (rrRenderingError) Get Online Help
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown.
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Anyone have any suggestions? Any way to find out what collection is blowing?...or where parameter name: index comes from?
SQL 2005 Bug? Cannot Create Full Text Index For VARBINARY Column That's Populated With Converted NVARCHAR Values
Jul 11, 2007Hi, I was wondering if any SQL Server gurus out there could help me...I have a table I'm trying to apply a full text catalog to, however no results are ever returned due to the text column being cataloged being of varbinary(max) that's being populated from a converted nvarchar(max) value - I've narrowed it down to this specifically, populating with non nvarchar text seems to work fine.To re-create the problem quickly...If I populate the column viaCONVERT(varbinary(max), 'test text')then there is no problem, I get results as expected.However if I populate the column viaCONVERT(varbinary(max), CAST('test text' as nvarchar(max)))no results are ever returned.Is this a bug with SQL Server 2005 Full Text Indexing? I'm happily creating full text catalogs when an nvarchar is not getting converted into a varbinary.I'm setting the Document Type column to '.html' (I've tried changing this to '.txt' in case it was a fault with the html ifilter but the problem persists so I believe I can rule this out).The reason I need to convert an nvarchar to varbinary is that the table holds multi-lingual text and I'm adding a html meta tag <META NAME="MS.LOCALE" CONTENT="ES"> to the beginning in order for the full text indexing word breaker to select the correct language to catalog the text with. The aim being to provide more relevant searches in users native languages (I've read a few articles that describe this technique, but it's the first time I've tried to apply it).Any pointers / suggestions would be greatly appreciated. Cheers,Gavin.
View 14 Replies View RelatedSQL 2005 Bug? Cannot Create Full Text Index For Varbinary Column That's Populated From Converted Nvarchar Values
Jul 11, 2007Hi, I was wondering if any SQL Server gurus out there could help me...
I have a table I'm trying to apply a full text catalog to, however no results are ever returned due to the text column being cataloged being of varbinary(max) that's being populated from a converted nvarchar(max) value.
To re-create the problem quickly...
If I populate the column via
CONVERT(varbinary(max), 'test text')
then there is no problem, I get results as expected.
However if I populate the column via
CONVERT(varbinary(max), CAST('test text' as nvarchar(max)))
no results are ever returned.
Is this a bug with SQL Server 2005 Full Text Indexing? I'm happily creating full text catalogs when an nvarchar is not getting converted into a varbinary.
I'm setting the Document Type column to '.html' (I've tried changing this to '.txt' in case it was a fault with the html ifilter but the problem persists so I believe I can rule this out).
The reason I need to convert an nvarchar to varbinary is that the table holds multi-lingual text and I'm adding a html meta tag <META NAME="MS.LOCALE" CONTENT="ES"> to the beginning in order for the full text indexing word breaker to select the correct language to catalog the text with. The aim being to provide more relevant searches in users native languages (I've read a few articles that describe this technique, but it's the first time I've tried to apply it).
Any pointers / suggestions would be greatly appreciated. Cheers,
Gavin.
UPDATE: Below is a T-SQL script you can run to demonstrate the effect I'm experiencing...
Code Snippet
-- Create test database
CREATE DATABASE FullTextTest
GO
USE FullTextTest
GO
-- Create test data table
CREATE TABLE TestTable
(
pk UNIQUEIDENTIFIER NOT NULL CONSTRAINT tablePK PRIMARY KEY,
varbinarycol VARBINARY(MAX),
documentExtension VARCHAR(5),
)
GO
-- The below single entry WILL BE FOUND (the text source is being entered directly)
INSERT INTO TestTable (pk, varbinarycol, documentExtension) VALUES (NEWID(), CONVERT(VARBINARY(MAX),'<META NAME="MS.LOCALE" CONTENT="EN">test entry 1'), '.html')
-- The bellow two entries below WILL NOT BE FOUND (the text source is taken from an NVARCHAR(MAX) value)
INSERT INTO TestTable (pk, varbinarycol, documentExtension) VALUES (NEWID(), CONVERT(VARBINARY(MAX), CAST('<META NAME="MS.LOCALE" CONTENT="EN">test entry 2' AS NVARCHAR(MAX))), '.html')
INSERT INTO TestTable (pk, varbinarycol, documentExtension) VALUES (NEWID(), CONVERT(VARBINARY(MAX), CAST('<META NAME="MS.LOCALE" CONTENT="EN">test entry 3' AS NVARCHAR(MAX))), '.html')
GO
-- Create the full text catalog
sp_fulltext_database 'enable'
GO
CREATE FULLTEXT CATALOG TEST AS DEFAULT
GO
CREATE FULLTEXT INDEX ON TestTable (varbinarycol TYPE COLUMN documentExtension LANGUAGE 1033)
KEY INDEX tablePK
GO
-- NOTE: You might need to give the catalog a chance to build before running the script below.
-- Now do a search that SHOULD RETURN 3 ROWS of data, but ONLY 1 ROW IS RETURNED
SELECT CAST(varbinarycol AS NVARCHAR(MAX)) FROM TestTable WHERE CONTAINS(varbinarycol, 'test')
Index Table1 And Select For 647.600 Records.. It Is So Slow.. But I Have No Index :)???
Jun 20, 2008hello friends
i have table1 and 200 coulumn of table1 :) i have 647.600 records. i entered my records to table1 with for step to code lines in one day :)
i select category1 category2 and category3 with select code but i have just one index.. it is productnumber and it is primarykey..So my select code lines is so slow.. it is 7-9 second.. how can i select in 0.1 second ? Should i create index for category1 and category2 and category3 ? But i dont know create index.. My select code lines is below.. Could you learn me and show me index for it ?? or Could you learn me and show me fast Select code lines and index or etc ??? Also my search code line have a dangerous releated to attaching table1 with hackers :)
cheersi send 3 value of treview1 node and childnode and child.childnode to below page.aspx :)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
If Request("TextBox1") IsNot Nothing ThenTextBox1.Text = Request("TextBox1")
End If
If Request("TextBox2") IsNot Nothing ThenTextBox2.Text = Request("TextBox2")
End If
If Request("TextBox3") IsNot Nothing ThenTextBox3.Text = Request("TextBox3")
End If
End If
Dim searchword As String
If Request("TextBox3") = "" And Request("TextBox2") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "'"
End If
If Request("TextBox3") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "'"
End If
If Request("TextBox3") <> "" And Request("TextBox2") <> "" And Request("TextBox1") <> "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "' and kategori2= '" & Request("TextBox3") & "'"
End If
SqlDataSource1.SelectCommand = searchword
End Sub
The Index Entry For Row ID Was Not Found In Index ID 3, Of Table 357576312
Jul 9, 2004Hi,
I'm running a merge replication on a sql2k machine to 6 sql2k subscribers.
Since a few day's only one of the merge agents fail's with the following error:
The merge process could not retrieve generation information at the 'Subscriber'.
The index entry for row ID was not found in index ID 3, of table 357576312, in database 'PBB006'.
All DBCC CHECKDB command's return 0 errors :confused:
I'm not sure if the table that's referred to in the message is on the distribution side or the subscribers side? A select * from sysobjects where id=357576312 gives different results on both sides . .
Any ideas as to what is causing this error?
Advantages Of Using Nonclustered Index After Using Clustered Index On One Table
Jul 3, 2006Hi everyone,
When we create a clustered index firstly, and then is it advantageous to create another index which is nonclustered ??
In my opinion, yes it is. Because, since we use clustered index first, our rows are sorted and so while using nonclustered index on this data file, finding adress of the record on this sorted data is really easier than finding adress of the record on unsorted data, is not it ??
Thanks
SQL 2012 :: Clustered Index Key Order In NC Index
Mar 5, 2015I 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?
Clustered Index Vs. Full Text Index
Jun 18, 2008Quick question about the primary purpose of Full Text Index vs. Clustered Index.
The Full Text Index has the purpose of being accessible outside of the database so users can query the tables and columns it needs while being linked to other databases and tables within the SQL Server instance.
Is the Full Text Index similar to the global variable in programming where the scope lies outside of the tables and database itself?
I understand the clustered index is created for each table and most likely accessed within the user schema who have access to the database.
Is this correct?
I am kind of confused on why you would use full text index as opposed to clustered index.
Thank you
Goldmember
Index/performance Index For SELECT.... IN Statement
Sep 10, 2007
Hi All,
I 'm working to improve some sql performance.
One of the major syntax inside the SELECT statment is ..
WHERE FIELDA IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='A') AND
WHERE FIELDB IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='B') AND
WHERE FIELDC IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='C') AND
WHERE FIELDD IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='D') AND
WHERE FIELDE IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='E') AND
WHERE FIELDF IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='F')
(It's to compare the field content with some user input parameter inside a parameter table... )
I think properly is that the SELECT ... IN is causing much slowness in the sql statement. I have indexed FIELDA , FIELDB, FILEDC etc and those PARAVALUE and PARATYPE in the PARATABLE table. But perfromance is still slow and execution takes >20 seconds for 200000 rows of records.
Do any one know if still any chance to improvide the performance like this?
Much Thanks,
Andy
Index Internals - Last Time Index Was Rebuilt?
Apr 17, 2007I'm trying to find whether there is a dmv or system view that can help me see the last time an index was rebuilt or created. Assuming I rebuilt an index using tsql commands (not a job with a history), is there a way to find out the last time that index was rebuilt?
Thanks much.