SQL Server 2012 :: Search For Maximum Value Of A Specified Index On Dataset
Oct 16, 2014
I have a dataset that I need to search for a maximum value of a specified index.
Example of dataset:
Heat Index Heat # Frame Window
1 584 110 110
1 584 102 109
1 584 95 106
1 584 190 112
2 586 100 100
2 586 150 120
2 586 170 130
2 586 112 126
I need to find the maximum value of Frame for each heat and the maximum value of Window for each heat. As you can see each heat has several data points.
Is there a way I can send the dataset to a function? I could then use a loop to test for the maximum of Frame and the maximum of Window for each heat.
Could I use an array?
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Jul 9, 2014
I have the following script -
SELECTDISTINCTLOC.[place-ref] AS 'Place Ref'
,PLA.address1 AS 'Address1'
,PLA.address2 AS 'Address2'
,PLA.address3 AS 'Address3'
,PLA.address4 AS 'Address4'
,PLA.address5 AS 'Address5'
,PLA.[post-code] AS 'Postcode'
,LOC.[location-sts] AS 'Location Status'
[Code] ....
Above is a small example.
As you can see 13 Alamein Avenue is listed twice. This is because it pulls back the former and the current tenancy. I don't want to exclude former tenancies - so I want to pull back the most recent Tenancy Reference for each Place Reference.
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Jul 14, 2015
I have a code I wrote and I'm required to get Product Name and Quantity with the maximum quantity sold per day. My issue is with the "per day" part, here's my code below.
SELECT
t.SalesOrder
,t.OrderQuantity
,t.OrderTotal
,t.OrderDate
,p.ProductName
FROM Transactions t
INNER JOIN SalesPerson sp
ON t.SalesPersonID = sp.SalesPersonID
INNER JOIN Product p
ON t.ProductID = p.ProductID
WHERE sp.SalesPersonName LIKE 'John%'
Now from this code I need to get only Product Name and Quantity with the maximum quantity sold per day, here's what I tried;
SELECT
SUM(t.OrderQuantity) AS Order_Quantity
,p.ProductName
FROM Transactions t
INNER JOIN Product p
ON t.ProductID = p.ProductID
WHERE sp.SalesPersonName LIKE 'John%'
GROUP BY p.ProductName, t.OrderQuantity
HAVING MAX(t.OrderQuantity)
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Jun 11, 2015
I have Database Library, which has a lot of tables and we need 3 tables for quary:
Table Librarians: field ID, field Surname;
Table StudentCard: field ID, foreign key on table Librarians and other fields, which we don't use
Table TeacherCard: field ID, foreign key on table Librarians and other fields, which we don't use
Query: Select the librarian's surname, which gave the most count of books.
I know, how to resolve, when i took datas only from one table, e. g. TeacherCard
SELECT TOP 1 WITH TIES Librarians.LastName, MAX(Librarians.CountOfBooks) AS Books FROM
(SELECT L.LastName, COUNT(*) AS CountOfBooks FROM Libs L, T_Cards T
WHERE T.Id_Lib IN (SELECT L.Id)
GROUP BY L.LastName) AS Librarians
GROUP BY Librarians.LastName
ORDER BY MAX(Librarians.CountOfBooks) DESC
GO
I dont know, how to use datas from TeacherCard and from StudetnCard at the same time.
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Dec 9, 2014
What is the maximum no.of global temporary tables can create in sql server
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Jun 20, 2007
I am upgrading from Access, where you can only have 10 fields in a primary key or unique index. Is this also the limit in SQL Server? If not, what is the limit?
Thanks for any help on this.
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Jan 14, 2006
I am developing a Recruitment Agency WebsiteI am using MS SQL Server in which I have a table called CV_Details which stores all the details of different Job Seekers. I have stored all the Word and PDF docs of the Job seekers in a 'mycatalog' using Index Server and stored the path in the CV_Details table along with rest of the cv details. Basically I want to download the cv's which i get after making a search in the doc's. I am able to get the filename, Path, Filesize by using Index Server Query.Is it anyway possible to extract all the CV Details data by matching the path.I want the cv details from the SQL Server of all the Related Paths at the same time not one at a time. Is it possible.I tried alot but i'm going nowhere. I'm giving my code below. Can anyone help me please.Thank you very much in Advance
string strCatalog = "TestCatalog", strsearchstrings=""; string strQuery=""; strsearchstrings = txtsearch.Text;
strQuery = "Select Filename,PATH from Scope() where FREETEXT('" +strsearchstrings+ "')"; // TextBox1.Text is the word that you type in the text box to query by using Indexing Service. string connstring = "Provider=MSIDXS.1;Integrated Security .='';Data Source="+strCatalog;
System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection(connstring); conn.Open(); System.Data.OleDb.OleDbCommand objcmd = new System.Data.OleDb.OleDbCommand(strQuery, conn); System.Data.OleDb.OleDbDataReader objRdr;
objRdr = objcmd.ExecuteReader(); DataGrid1.DataSource=objRdr; DataGrid1.DataBind(); objRdr.Close(); conn.Close();
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May 29, 2008
I'm seeing this error in my application log. Not quite sure how it started happening all of a sudden. I'm not quite sure where to start on this one.
Any suggestions greatly appreciated!
Thanks,
Mike123
Exception information:
Exception type: SqlException
Exception message: Operation failed. The index entry of length 1007 bytes for the index 'tblMessage25' exceeds the maximum length of 900 bytes.
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Oct 31, 2014
Consider following script
create table data_set (id int primary key, col1 varchar(10))
go
insert into data_set values (1,'a'), (2,'b'),(3,'c'),(4,'d'),(5,'a'),(6,'b'),(7,'e'),(8,'f'),(9,'a'),(10,'a')
select * from data_set
I tried this below
Declare @child_ids int
@col_val varchar
@count int
select @child_ids, @col_val, @count, count(col1) as records from data_set
group by col1
order by col1
But I want my output like below .....
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Mar 28, 2014
In our Microsoft Dynamics Nav instance we have a Sales Header Archive table - into which copies of the Sales Header are placed, with 3 items forming the compound key:
Document Number
Version
Occurrence number
so if doc 1 is archived, then the records would be
Doc# | Version | Occurrence #
1 | 1 | 1
When a second copy is archived a new record is added:
Doc# | Version | Occurrence #
1 | 1 | 1
1 | 1 | 2
and then when maybe a 3rd version is archived a 3rd entry added
Doc# | Version | Occurrence #
1 | 1 | 1
1 | 1 | 2
1 | 2 | 2
This is for EACH document and I now need to retrieve the dataset which is the latest version of each document... but I'm drawing a blank!
If I
select [Doc#], max([Version]) as [V], max([Occurrence #]) from (table) group by [Doc#]
then I get the distinct list of docs, but I now need to use this list to select the records which match this criteria, from this table.
How do I select just these?
I thought (wrongly) that I could simply say:
Select * from Invoice Table where
Invoice.[Doc#], Invoice.[V], Invoice.[Occurrence #] in
(select [Doc#], max([Version]) as [V], max([Occurrence #]) from (table) group by [Doc#])
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Mar 25, 2015
I have a table that contains words that will be used to search another table where FullText index has been created on searchable columns. I'm basically trying to run something like this:
SELECT t1.col1, t2.col3
FROM tbl1 t1, tbl2 t2
WHERE CONTAINS (t1.col1, t2.col1)
I know this won't work but is there a way to join these two tables so the words (t2.col1) can be passed as search conditions? There is no common key on both tables so normal join won't work. I'm trying to find a way to pass the search words from one table to another.
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Jan 12, 2008
hi
I have 2 fields in my table by names "usercode" and "pass" and the "usercode" is the primarykey.
I want when the user writes the usercode and leave the textbox, check if there is a usercode like the textbox content return true to the user.
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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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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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Apr 11, 2014
I am new to Full-Text Searches and FileTables. I am working on a resume search system. I created a FileTable and the Share which contains about 51,000 resumes in Word (DOC/DOCX), PDF and TXT formats that were copied over from our main file server. I followed the instructions on adding the Microsoft Filter Pack 2.0, and all searchable file types are listed in sys.fulltext.document_types.
I have a program that searches resumes by First and Last Name and/or E-mail Address. For a while, we thought it was working fine because we were getting hits, but then we noticed some Names and E-mail Addresses we new existed were not showing up in my CONTAINS queries -- but we verified the documents do exist and the Names exist in the File Name and inside the document along with the E-Mail address.
One example I'm working on now cannot find the First/Last Name with CONTAINS(name,"lastname") in a Word DOC file, but I can find the document using LEFT(name,5) = 'Smith'. It's a Word DOC file. For testing purposes, I opened the DOC file in Word, then used Save As to create a TXT and DOCX file within the same folder. Now, both of those are showing up in the CONTAINS but not the original DOC file.
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Aug 11, 2014
I'm standardizing street addresses and i think full text search, maybe, work fine with my problem. My problem is that I have 2 millon of errors and using "LIKE" dont work correctly. This is what i have now:
UPDATE addresses
SET standarAddress = REPLACE (addresses.streetAddress, errors.streetAddress, corrects.streetAddress)
FROM corrects
INNER JOIN errors
ON corrects.id = errors.idCorrects
[Code] ....
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Oct 6, 2015
IF OBJECT_ID('tempdb..#test') IS NOT NULL
DROP TABLE #test
CREATE TABLE #test (TestID CHAR(5) NOT NULL PRIMARY KEY)
INSERT INTO #test
SELECT '1'
[code]....
i am trying to build a dynamic where "or" clause finding difficulties.
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Dec 1, 2014
I have a query which is primarily a victim of blocking and a blocker itself for other queries. I studied the plan for this and it shows a 42% cost on CI insert operation. The insert is happening on a table (Table A) that has a PK. This PK is not a running number. It is also a business key (primary key) in another master table (Table B).
My understanding is that the cost is heavy because -
1, this PK is not an incremental number. It could be any number not in a sequence.
2. while inserting into CI, there must be a scan happening to find out the location where the index will be inserted.
How can I reduce the cost?
1. Should I go for partitioning of this table Table A? I am trying to do this but I am not able to find any suitable partition key looking at the JOINS and filter clauses where this table is being used in the applicaiton.
2. Should I introduce a surrogate key (running number) as a primary key so that CI is faster ?
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Mar 20, 2015
I am trying to create a unique index on a table such that the combination of 2 columns is unique. How do I go about that?
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Feb 8, 2014
Is there a way to make full text search which supports search terms for words with symbols, like C#, C++ etc.?
I see that even this forum, if I try search for C++, it returns everything where letter c exists. So, it's not possible I guess?
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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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Apr 6, 2015
This is running on sql server 2012, we have seup the databases on Availability group. The strange behavior i have been seeing the past few weeks is task manager has been blocked from index Re-org but have not found that what that task manager doing.. it won't shows the statement that running but shows as command type= 'Task manager'. Index is so big and i have been stopping this because of triple thread blocking.
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Jun 10, 2015
Can we use a sql function() in create index as below is giving error , what would be work around if cannt use the function in below scenario
CREATE NONCLUSTERED INDEX [X_ADDRESS_ADDR1_UPPER] ON [dbo].[ADDRESS]
(
UPPER([ADDR_LINE_1]) ASC
)
WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]
GO
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Aug 8, 2015
I have a view that joins a dozen tables with a million rows added per year by an application. I want to materialize it. The view is always filtered by date first on reports, then there are a few key transaction keys, but then many other fields required to make each row unique. I don't want to add these columns since they are large, many, not used for sorting or filtering, and may not define uniqueness in a future application design. I need a uniqueifier that is application agnostic. I prefer a bigint. So to store the materialized view ideally for reporting, I want to add the following clustered index to materialize the view:
CREATE unique CLUSTERED INDEX idx1
ON [dbo].[myview](myDate, key1, key2, key3, id bigint identity(1,1) NOT NULL)
And I get this error:
Msg 102, Level 15, State 1, Line 3
Incorrect syntax near 'bigint'.
Can I do what I want? If so, how?
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Mar 17, 2014
How many nodes can you have in a cluster with SQL 2012 alwaysOn.
I understand that availability groups are limited to 5 nodes but if you had a 10 node cluster and decided to create multiple availability groups using various nodes within the 10 nodes but never exceeding 5, is that possible?
Or is there a counter or some validation from SQL AlwaysOn that actually hard limits to a grand total of 5 nodes in a cluster?
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Mar 6, 2015
I inherited a table with this structure:
Value a Value b
x date a
x date b
x date c
y date d
z date e
z date e
z date f
Value a fields are one to many. The objective is to obtain the maximum date value for each unique a value.
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Apr 4, 2015
Consider following code:
SELECT e1.EntityIdentity as CompanyID
FROM dbo.Entitye1 --company
JOIN dbo.EntityAssociationea
ON e1.EntityID = ea.EntityID1
JOIN dbo.Entitye2 --user
ON ea.EntityID2 = e2.EntityID
This query occurs as a sub-query in many stored procedures where exists a WHERE clause that includes CompanyID IN (above query).
Since dbo.Entity and dbo.EntityAssociation change infrequently I thought that an indexed view would really improve performance. But I've found one of the seemingly undocumented Microsoft features when trying to create the clustered index and get the following error msg:
Msg 1947, Level 16, State 1, Line 1
Cannot create index on view "ROICore.dbo.vEntityEntityAssociation_CompanyUser". The view contains a self join on "ROICore.dbo.Entity".
I really need to improve performance on this subquery. Entity currently has over 20m rows and EntityAssociation over 35m rows and both are growing.
How to improve performance? Indexes on both tables for the most part give index seeks, but I thought my saviour might be the index view. Obviously this will not work.
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Jun 18, 2015
I have created NONCLUSTERED index on table but my report is taking more time that's why i created columnstore NONCLUSTERED index on the same table but i have one query, if any table have row and column level index(same columns in index) . Which index query will consider.
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Jun 24, 2015
Script they use to generate indexes in SQL 2005.
I have 2 databases on a separate instance. I want to script out all indexes from database1 then execute it on database2.
How to accomplish this task efficiently.
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Sep 18, 2015
We have a table to 100M rows and up until now we were fine with an non clustered index a varchar(4000) because we never went above 900 bytes (yes it is a bad design).We have the need to support international character sets now so the column was updated to nvarchar(4000) and now we have data past the 900 byte limit.
The data is long, seems useless but is needed by the business and they need to be able to search "where bigcolumn like 'test%'". With an index, even with a huge amount of data, it was 'fast'. Now of course without an index it is unusable. The wildcard is always at the end of the search. I made a full text index on the column and basic queries such as: select * from ourtable where contains(bigcolumn, 'AReallyLongStringofTextHere') works fine unless there is a space in the data. We loose thousands of returned rows because of spaces in the data.
I have tried select * from ourtable where contains(bigcolumn, '"AReallyLongStringofTextHere that includes spaces"') but not all of the data is returned. I get 112 rows with the contains statement. The table scanning statement of "select * from ourtable where bigcolumn like 'AReallyLongStringofTextHere that includes spaces%' returns 1939 rows.I understand that a full text index is breaking the long string up since it contains spaces. Is there a way to retain the entire string as 1 index entry or is there a way to fix my query to return all of the rows?
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Aug 18, 2004
Dear Experts
I had created an index on of my table in SQLSERVER 2000 !
and after some time i had added a field on the table for which
i had created index now i want to reindex the table ,
but now i don;t know the name of the indextable which i had made,
I tried to search it on the ENTERPRISE MANAGER
but i can;t get !
Can any one help me to find out the list of all the
TABLE NAME / and the INDEX
With Regards
Manish Kaushik
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May 20, 2015
I have a table which dont any Identity column. The data in the table has duplicate values, some rows are totally identical. I just want to select the row which has maximum Row Id/Row number if I am getting multiple rows in my select statement.
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Apr 19, 2014
I have written this sample query to search a full-text indexed table and return the results. If the word occurs more than once I want it to return as a new record and the results show a short summary of the location. I was using 'like', but the full table scans were really slowing it down. Can performance be improved for the following (The results returned by my query are accurate)
Query
DECLARE @searchString nvarchar(255);
DECLARE @searchStringWild nvarchar(275);
SET @searchString = 'first';
SET @searchStringWild = UPPER('"' +@searchString+ '*"');
SELECT id, '...' + SUBSTRING(searchResults.MatchedCell, searchResults.StartPosition, searchResults.EndPosition - searchResults.StartPosition) + '...' as Result
[Code] ....
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