T-SQL (SS2K8) :: How To Get Distinct Records From Table

Apr 14, 2014

Suppose I have 2 table

1)Main
2)History

Main table maintain all the records having columns MAIN_SKU,DEDUCTIBLE_AMT,model_id,catagory,ModifiedDate

IF DEDUCTIBLE_AMT is changes it will place entry in history table ,columns are same with history_id

i want to display distinct main_sku from history table(all columns) with last DEDUCTIBLE_AMT changed from history table

table structure
main table
MAIN_SKUDEDUCTIBLE_amtmodel_idcatagory
1100100phone
2150101phone
3200109smartphone
4100202smartphone
History table
History_idMAIN_SKUDEDUCTIBLE_amtmodel_idcatagoryModifiedDate
11150100phone4/14/2014
21200101phone4/13/2014
34109202smartphone4/14/2014
44101202smartphone4/13/2014
52200101phone4/13/2014
63100109smartphone4/12/2014

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T-SQL (SS2K8) :: Renumbering Remaining Records In A Table After Some Records Deleted

Dec 3, 2014

I have a table with about half a million records, each representing a patient in my county.

Each record has a field (RRank) which basically sorts the patients as to how "unwell" they are according to a previously-applied algorithm. The most unwell patient has an RRank of 1, the next-most unwell has RRank=2 etc.

I have just deleted several hundred records (which relate to patients now deceased) from the table, thereby leaving gaps in the RRank sequence. I want to renumber the remaining recs to get rid of the gaps.

I can see what I want to accomplish by using ROW_NUMBER, thus:

SELECT ROW_NUMBER() Over (ORDER BY RRank) as RecNumber, RRank
FROM RPL
ORDER BY RRank

I see the numbers in the RecNumber column falling behind the RRank as I scan down the results

My question is: How to convert this into an UPDATE statement? I had hoped that I could do something like:

UPDATE RISC_PatientList_TEMP
SET RRank = ROW_NUMBER() Over (ORDER BY RRank);

but the system informs that window functions will only work on SELECT (which UPDATE isn't) or ORDER BY (which I can't legally add).

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How To Get Distinct Records In Table

Dec 26, 2013

For examble:

In a table name like

1.Test
2.Test.
3.Test..
4.Test...

How will get the name "Test" using distinct keyword?

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How To Get Distinct Records In Table

Dec 25, 2013

For examble:

In a table name like

1.Test
2.Test.
3.Test..
4.Test...

How will get the name "Test" using distinct keyword?

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How To Copy Distinct Records From One Table To Another Using SQL 2005

Oct 24, 2007

I have a table on an offline database having let say 2000 rows and same table on an online database with let say 3000 rows. Now I want to copy just those records (1000) from online database that are not in the offline database table. Also, both tables have same name, same schema etc.

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Count Distinct In Large Table With 30M Records?

Jul 7, 2015

I have a task to count distinct records in a big table with roughly 30M records, performance is an important factor. Query is to be written to calculate weekly stats, weekly record number could be as high as 1M.

The actual result is like:
ID Policy
350235744Credit Cards
350235744PCI
350235744PCI Audit

So the final number for this particular Policy is 3

I can write the query like:

select count(distinct Incident_id) policy_name
from Reporting_DailyDlpDetail
Where (year(INSERT_DETECT_TS)=2015) and (month(INSERT_DETECT_TS) =6) and (day(INSERT_DETECT_TS) between 2 and 9)
This returns 526254 and costs 11 seconds to complete

or a query like:
Select distinct Incident_id, policy_name
from Reporting_DailyDlpDetail
Where (year(INSERT_DETECT_TS)=2015) and (month(INSERT_DETECT_TS) =6) and (day(INSERT_DETECT_TS) between 2 and 9)
This returns 749687 and costs roughly 1 minute to complete.

Result is different from the two queries, I believe the later gives correct number. How can I count the distinct based on a combo?Considering the size of data, what is the best and most efficient way to run the stats calculation against over 30 different scenarios (different policies and alert types) and not timeout?

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T-SQL (SS2K8) :: Pulling Records From A Table Between Date Ranges In Another Table

Mar 17, 2014

This seems simple enough but for some reason, my brain isn't working.

I have a lookup table:

Table A: basically dates every 30 days

1/1/2014
2/3/2014
3/3/2014
4/3/2014

I have Table b that has records and dates created assocated with each record

I want all records that fall between the 1st 30 days to have an additional column that indicates 30

union

records with additional column indicating 60 days that fall between the 30 and 60 day

union

records with additional column indicating 90days that fall between the 60 and 90 day mark.

Is there an easy way to do this?

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T-SQL (SS2K8) :: Filter Records In Table?

Mar 6, 2014

I have a table that has multiple records as illustrated in the simple list below. The real list is much longer.

MachineA 1/1/2008
MachineA 1/3/2008
MachineB 1/7/2008
MachineB 1/8/2009
MachineB 5/5/2010
MachineA 5/7/2011
MachineA 4/2/2013

I need to query to return a result for each unique machine with the latest date. The example result below would be returned because they have the latest date.

MachineA 5/7/2011
MachineB 5/5/2010

Select Distinct would almost do it, but I need each unique machine that has the latest date.

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T-SQL (SS2K8) :: How To Get One Row On A Table With Multiple Records

Apr 24, 2014

I have a table called TBLCataloghi

I have multiple records with colunms codpro and codcat equal

They differ only by a date called catalog.datfin

I'd like to select all rows but with the same codpro,codcat, obtaining ONLY the row with MIN () field datfin

Field datfin is a date..

Ex. codpro = 'PIPPO'
codcat = 'MK'
DATFIN = 01/01/2010

codpro = 'PIPPO'
codcat = 'MK'
DATFIN = 10/07/2014

I'd like to read both records but in SELECT obtain only the record with datfin MIN (01-10-2010)

I did the query but i was not able to do nothing of good. I obtain all times both records...

SELECT catalog.codpro AS CodProdotto,
catalog.codcat AS CodiceCatalogo,
MIN(catalog.datfin)

FROM pub.catalog

WHERE catalog.codcat = 'MK'

GROUP BY catalog.codpro,catalog.codcat ,catalog.datfin

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T-SQL (SS2K8) :: Delete Table Records With Backup?

May 2, 2014

using below query

DELETE FROM Table_name
WHERE Date_column < GETDATE() - 30

am able to delete old records morethan 30 days, but i want to results to be saved in file.

before deleting i want to a craete a file and save the to be deleted records.

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T-SQL (SS2K8) :: Export Records Of A Table In XML Format

Jun 5, 2014

I need to export the records of a table in xml format.

create table ##prova
( Valuta varchar(2),
Misura float
)
insert into ##prova values ('EU',1000)
insert into ##prova values ('$',2000)

The final result must be something like this:

<root>
<obs id=”0”>
<dim name=”Valuta” value=”EU” />
<dim name=”Misura” value=”1000” />
</obs>
<obs id=”0”>
<dim name=”Valuta” value=”$” />
<dim name=”Misura” value=”2000” />
</obs>
</root>

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T-SQL (SS2K8) :: Only One Record From Table With Multiple Records?

Sep 4, 2015

I have a scenario where ID has three flags.

For example

ID flag1 flag2 flag3
1 0 1 0
2 1 0 0
1 1 0 0
1 0 0 1
2 0 1 0
3 0 1 0

Now I want the records having flag2=1 only.. I.e ID=3 has flag2=1 where as ID = 1 and 2 has flag1 and flag3 =1 along with flag2=1. I don't want ID=1 and 2.

I can't make ID unique or primary. I tried with case when statements but it I am somehow missing the basic logic.

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T-SQL (SS2K8) :: Getting Records In N-Relation Table In One Select Statement?

Jun 9, 2014

I have 2 tables in a 1: n relation. How can i get a select statement that the field in the n-relation with outputs, separated by a semicolon; Example: One person have many Job Titles

Table1 (tblPerson)
Table2 (tblTitles)
1, "John", "Miller", "Employee; Admin; Consultant"
2, "Joan", "Stevens", "Employee, Software Engineer, Consultant"
and so on .... 1 in select statement:

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T-SQL (SS2K8) :: Identifying Potential Duplicate Records In A Given Table?

Oct 8, 2015

any useful SQL Queries that might be used to identify lists of potential duplicate records in a table?

For example I have Client Database that includes a table dbo.Clients. This table contains various columns which could be used to identify possible duplicate records, such as Surname | Forenames | DateOfBirth | NINumber | PostalCode etc. . The data contained in these columns is not always exactly the same due to differences caused by user data entry; so some records may have missing data from some of the columns and there could be spelling differences too. Like the following examples:

1 | Smith | John Raymond | NULL | NI990946B | SW12 8TQ
2 | Smith | John | 06/03/1967 | NULL | SW12 8TQ
3 | Smith | Jon Raymond | 06/03/1967 | NI 99 09 46 B | SW12 8TQ

The problem is that whilst it is easy for a human being to review these 3 entries and conclude that they are most likely the same Client entered in to the database 3 times; I cannot find a reliable way of identifying them using a SQL Query.

I've considered using some sort of concatenation to a new column, minus white space and then using a "WHERE column_name LIKE pattern" query, but so far I can't get anything to work well enough. Fuzzy Logic maybe?

the results would produce a grid something like this for the example above:

ID | Surname | Forenames | DuplicateID | DupSurname | DupForenames
1 | Smith | John Raymond | 2 | Smith | John
1 | Smith | John Raymond | 3 | Smith | Jon Raymond
9 | Brown | Peter David | 343 | Brown | Pete D
next batch of duplicates etc etc . . . .

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T-SQL (SS2K8) :: Table With 3 Million Plus Records Taking Half A Minute?

Aug 6, 2015

I have a table that I need to do some computations on all the data but first I need to remove the duplicate records and insert the results into a destination table. Here's the example below. My table has 3.1 million rows. I have tried using the DISTINCT and the GROUP BY but both ways to select the data takes about half a minute to run. I'm wondering if there is a way to increase performance. Users are ok with this time since the process runs overnight but improving it won't hurt. I do have a clustered index on these fields but that doesn't seem to improve any.

SELECTDateYear ,
DateMonth ,
Nbr ,
Nbr1 ,
Nbr2 ,
Datafield1 ,
Datafield2,

[code].....

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T-SQL (SS2K8) :: Delete All Rows Satisfying Certain Condition From Table A And Related Records From B And C

Apr 14, 2015

I have around 3 tables having around 20 to 30gb of data. My table A related to table B by a FK and same way table B related to table C by FK. I would like to delete all rows satisfying certain condition from table A and all corresponding related records from table B and C. I have created a query to delete the grandchild first, followed by child table and finally parent. I have used inner join in my delete query. As you all know, inner join delete operations, are going to be extremely resource Intensive especially on bigger tables.

What is the best approach to delete all these rows? There are many constraints, triggers on these tables. Also, there might be some FK relations to other tables as well.

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T-SQL (SS2K8) :: Max With Distinct Two Columns And Corresponding Third Column

Apr 30, 2014

T1
-------
a1
a2
datetime
a4
a5
.....

i need distinct max between a1&a2 which i can get no problem but i cant get that unique datetime that correspond to a1&a2 in 1 query because this is will a subquery in a big query. Creating another temp table etc is not an option for me. for every specific a1 there is many entries of a2 + timedate etc.

create table abc_test (
id int
,runs int
,date1 datetime

[code]....

I can either get distinct ID + latest date or ID + largest #ofRuns, both will do but also need the third column.

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T-SQL (SS2K8) :: Distinct On Varchar Column

May 21, 2015

The below TSQL query takes about 19 minutes to run

SELECT count(distinct SessionID) ) FROM SessionTracker

Sessionid is a varchar(138)

Through SQL profiler - I notice implicit conversion taking place when running distinct option.

Select count(sessionid) from sessiontracker

- runs in milliseconds.

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T-SQL (SS2K8) :: Selecting Distinct From Multiple Tables

Jun 4, 2014

I have 3 tables:

News:

bigint NewId
nvarchar NewTitle
datetime NewDate
nvarchar NewBrief
--------------------------
Category:

int CatId
nvarchar CatName
--------------------------
NewsRelCategory:

bigint Id
int CategoryIdFk
bigint NewsIdFk
--------------------------

I want to select NewId, NewDate and Distinct NewTitle

I tried this but NewTitle doesn't distinct:

SELECT
FROM dbo.Category INNER JOIN
NewsRelCategory ON dbo.Category.CatId = NewsRelCategory.NrcCategoryIdFk INNER JOIN
dbo.News ON NewsRelCategory.NrcNewsIdFk = dbo.News.NewId

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T-SQL (SS2K8) :: Function To List Distinct Pax Name And Ticket Numbers?

Mar 14, 2014

I have data in a table Item_TB that I need to extract in a way that pulls out the distinct pax name and all the ticket numbers associated with the passenger per booking reference.

The data is:

Branch Folder ID Pax TktNo BookingRef
HQ 123 1 Jim 4444 ABCDE
HQ 123 2 Bob 5555 ABCDE
HQ 123 3 Jim 6666 ABCDE
HQ 123 4 Bob 7777 ABCDE
HQ 124 1 Jenny 8888 FGHIJ
HQ 124 2 Jenny 9999 FGHIJ
HQ 124 3 Jenny 3333 FGHIJ

I somehow need to get a function to pull the data out for each booking ref like so

--BookingRef ABCDE
Jim 4444/
6666
Bob 5555
7777
--BookingRef FGHIJ
Jenny 8888/
9999/
3333

I know I can get a simple function to return the all data, but I do not know how to only include the pax name once.

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T-SQL (SS2K8) :: How To Select Rows Based On One Distinct Column

Apr 18, 2014

--------------------------------------------------
SalesOrder-ItemName-Price-Category
-------------------------------------------------
01-Camera-100-Electronic
01-Memory-4GB-10-Memory
01-Battery-5-Battery
02-Keyboad-10-Accessories
02-Mouse-5-Accessories
03-CPU-300-Hardware
03-Motherboad-400-Hardware

From above rows i would like to select rows based on one distinct column SalesOrder, i want output like below.

-----------------------------------
SalesOrder-ItemName-Price-Category
-----------------------------------
01-Camera-100-Electronic
02-Keyboad-10-Accessories
03-CPU-300-Hardware

CREATE TABLE Table1 (SalesOrder varchar(10), ItemName VARCHAR(100), Price INT, Category VARCHAR(100))

[Code] ......

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Trying To Get Distinct Records

Jan 7, 2008

How do I get distinct TitleID and Titles?  Right now I'm still getting duplicates on them both.  Here's my stored procedure.
select Distinct (Titles.Titleid), Titles.Title as TITLE, classifications.[description]as TOPIC,Titles.descriptions,media.[description] as MEDIA
from  Titlesjoin resources on resources.Titleid = Titles.Titleidjoin media on media.mediaid = resources.mediaidjoin titleclassification on titleclassification.titleid = titles.titleidjoin classifications on classifications.classificationid = titleclassification.classificationid  WHERE Title LIKE 'p' + '%' GROUP BY Titles.titleid, titles.title,classifications.[description],Titles.[descriptions],media.[description] 
Thanks! 
 
 
 

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Distinct Records

May 11, 2008

hi,
i want to ask a simple question,
i have a sql server relational tables named "tbl_Contact" (w/c has a field of ID & ContactName) and "tbl_reviews" (w/c has ID,ContactCode & Reviews).
the tables relationship is one-to-many, now my question is, how can i display a single record per 'ContactCode' from 'tbl_review'??
thanks..
 
 

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Only Get The Non Distinct Records

Oct 1, 2007

I am trying to write a query that will only return the non distinct records

what i have is a bunch of line items that have an order id and a rate

there may be 10 line items with the same orderid, I need to get the orderid and rates for the orderids that have more than one rate

how would i do this?

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Getting Distinct Records

Oct 16, 2007

how do i get an entire record returned when looking for only column to be unique?

basically i have 3 columns

id, tranid, appliedtranid

tranid can have multiple appliedtranids

i need to grab the top 10 distinct tranids but i need the entire record

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Get Top Distinct Records

Jan 31, 2008

hi I am trying to write a query that will return the most recent status of an event

my query is below

SELECT DISTINCT eventname, MIN(Status) AS Expr1, MIN(RecordUpdated) AS Expr2
FROM EventQueue
GROUP BY AuditName

does this query always result with the most recent distinct eventname record?

I need to make sure that the recordupdated is the most recent for the eventname

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Selecting Distinct Records

Sep 1, 2007

Hi,
 I'm just wondering if someone can help me with some SQL syntax stuff.I want to take this sql statement: 
"SELECT TOP 50 tblProfile.chName, tblProfile.intCount FROM tblProfile, tblLinks WHERE (tblLinks.MemberID = tblProfile.MemberID) ORDER BY tblLinks.dtDateAdded DESC;"
 and select only unique "chName's" records 

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Select Distinct Records

Oct 10, 2007

 Hello, I have the following tables: declare @B table (Bid int identity, description varchar(50)) declare @P table (Pid int identity, Bid int, description varchar(50)) declare @T table (Tid int identity, description varchar(50)) declare @TinP table (TinPid int identity, Tid int, Pid int) insert into @B (description) select 'B1' insert into @B (description) select 'B2' insert into @P (description, Bid) select 'P1', 1 insert into @P (description, Bid) select 'P2', 1 insert into @P (description, Bid) select 'P3', 2 insert into @T (description) select 'T1' insert into @T (description) select 'T2' insert into @T (description) select 'T3' insert into @TinP (Tid, Pid) select 1, 2 insert into @TinP (Tid, Pid) select 2, 2 insert into @TinP (Tid, Pid) select 3, 3 select * from @B select * from @P select * from @T select * from @TinP I need to get all records in T (Tid and description) which are related to a given BId So for @Bi = 1 I would get: Tid   Description 1     T1 2     T2 So I need the distinct values. How to solve this? Thanks, Miguel

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Display Distinct Records?

Dec 7, 2011

TableName: Order_Archive
Fields:
orderid
load_date
filename
order_date
dollar

I load a file each week into a table, each file has unique orderid, load_date, filename, order_date and dollar. However the same orderid, order_date and dollar could appear in another file with different load_date and file_name.

File1:
orderid, load_date, file_name, order_date, dollar
'1000', '2011-01-01', 'File1', '2011-01-01', '101'
'1001', '2011-01-01', 'File1', '2011-01-01', '102'
'1002', '2011-01-01', 'File1', '2011-01-01', '103'

File2:
orderid, load_date, file_name, order_date, dollar
'1001', '2011-01-08', 'File2', '2011-01-01', '102'
'1002', '2011-01-08', 'File2', '2011-01-01', '103'
'1003', '2011-01-08', 'File2', '2011-01-01', '104'

Question:
whats is the best way to retrieve the distinct records that has the most recent load_date? expected results below:

Expected Results:
orderid, load_date, file_name, order_date, dollar
'1000', '2011-01-01', 'File1', '2011-01-01', '101'
'1001', '2011-01-08', 'File2', '2011-01-01', '102'
'1002', '2011-01-08', 'File2', '2011-01-01', '103'
'1003', '2011-01-08', 'File2', '2011-01-01', '104'

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Count Distinct Records

May 15, 2008

how can i count in sql the number or records taht would be returned if i did

select distinct site,date from allrecords

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DISTINCT And Number Of Records

Mar 19, 2008

Wondering if there is a way to do this...

I want to select the DISTINCT user name from each record in a table, and then have another field tell me how many records it found..

is there any way to do this with SQL?


SELECT DISTINCT user_Name FROM table ORDER BY user_Name


is what I have now....


need something that will return:

user_Name numRecs
bob 3
fred 6
sam 1
linda 2

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Selecting Distinct Records Through CTE

Jan 11, 2013

I have a table contains information related to sales:

SO number Order Date     Customer SellingPerson
1001          2012/07/02     ABC          Andy
1002          2012/07/02     XYZ           Alan
1003          2012/07/02     EFG          Almelia
1004          2012/07/02     ABC         John
1005          2012/07/02     XYZ          Oliver
1006          2012/07/02     HIJ           Dorthy
1007          2012/07/02     KLM          Andy
1008          2012/07/02     NOP         Rowan
1009          2012/07/02     QRS          David
1010          2012/07/02     ABC          Joey

Now, i want to write a query using CTE that gives me first five distinct customer in result set:

SO number Order Date     Customer SellingPerson
1001          2012/07/02     ABC          Andy
1002          2012/07/02     XYZ           Alan
1003          2012/07/02     EFG          Almelia
1006          2012/07/02     HIJ           Dorthy
1007          2012/07/02     KLM          Andy

I wrote this query :

With t(so_number,order date,customer, SellingPerson)
as
  (select top 5 so_number,order date,customer, SellingPerson from t)
 select distinct billingcontactperson from t order by so_id

And getting this error:

Msg 252, Level 16, State 1, Line 1
Recursive common table expression 't' does not contain a top-level UNION ALL operator.

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How To Select Distinct Records From 3 Or More Tables...?

Jun 1, 2001

Attached is my select query, but it is returning the database values twice.

Can anyone tell me how I tell it to stop! A sub query I guess....

SELECT DISTINCT
dbo.Lead_Entry.Lead_ID, dbo.Lead_Entry.Lead_Source, dbo.Lead_Entry.Lead_Approved, dbo.Lead_Entry.Solution, dbo.Lead_Entry.Lead_Date,
dbo.Customer_Company.Company_Name, dbo.Customer_Contacts.Contact_Name
FROM dbo.Customer_Contacts INNER JOIN
dbo.Customer_Company ON dbo.Customer_Contacts.Company_ID = dbo.Customer_Company.Company_ID CROSS JOIN
dbo.Lead_Entry

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