Comparing Data In Two Tables To Find Missing Records

Jul 20, 2005

I have two tables of book information. One that has descriptions of the
book in it, and the isbn, and the other that has the book title,
inventory data, prices, the isbn.

Because of some techncal constraints I won't get into now, I can't
combine them both into one table. No problem. Things are going fine as
long as there is a description in the one table to corrispond to the
isbn and other data in the other table.

However, about half of the products are not yet entered into the
descrition table. I'd like to run a sql query that pulls up all the
isbns that don't exist in the other. In other words, I'd like to get a
query that tells me exactly which isbns do not yet have descrition data
in them. I know there is some sql that says to search from one file
where the number does not exist in the other, but it slips my mind. Can
someone help me on this please?

Thank you!



Bill

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Find Missing Records In Identical Tables

Oct 31, 2007



Im wondering if it is possible to write a procedure that check two identical tables for any missing records. The table design is excatly the same, but some records (of the 40,000) have not copied over to the second table.

Any help would be great, cheers.

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How To Find Missing Records From Tables Involving Composite Primary Keys

Nov 23, 2006

Table 1







     Code
    Quarter

500002
26

500002
27

500002
28

500002
28.5

500002
29

 

Table 2







     Code
           Qtr

500002
26

500002
27

 

I have these two identical tables with the columns CODE & Qtr being COMPOSITE PRIMARY KEYS

Can anybody help me with how to compare the two tables to find the records not present in Table 2

That is i need this result







    Code
   Quarter

500002
28

500002
28.5

500002
29

I have come up with this solution

select scrip_cd,Qtr,scrip_cd+Qtr from Table1 where
scrip_cd+Qtr not in (select scrip_cd+qtr as 'con' from Table2)

i need to know if there is some other way of doing the same

Thanks in Advance

Jacx

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Jul 31, 2015

Below is the code for two data sets and I can't seem to get my head around the issue. I need to find the number of 'ER' visits and 'IN' visits, separately, in dbo.VisitData for the 'Active' patients in dbo.PatientStatus. So, consider patient 69. He is Active on 5/5/2014 but becomes Inactive on 9/15/2014. I only want to count the number of visits ER or IN that are between those dates. In addition if patient 69 becomes active again after 9/15/2014, I need to capture that data as well. Patients can change there status multiple times.

create table dbo.PatientStatus
as
(
patient_id varchar(10),
status_type varchar(10),
status_date datetime

[Code] ....

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Jul 20, 2005

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Sep 29, 2015

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Select a.table1
,b.table2
from table1 a, table2 b
where StringDistance (''a.table1,'b.table2') >90

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Comparing Date Records In One Column To Know Missing Date Interval?

Jun 6, 2012

I need to compare the contents of a column.

I have a table with 1 column. Below are the sample contents..

DateInterval
2012-06-01 00:30:00.000
2012-06-01 01:00:00.000
2012-06-01 01:30:00.000
2012-06-01 02:00:00.000
2012-06-01 02:30:00.000

[code]....

as you can see, the records have a 30minutes time interval. i need to create a query to know if there are missing records in the table. so basically the result should be this:

DateInterval
2012-06-01 18:00:00.000
2012-06-01 20:30:00.000

if it is not doable, we can get the nearest record of all missing records like this:

DateInterval
2012-06-01 17:30:00.000
2012-06-01 20:00:00.000

or this:

DateInterval
2012-06-01 18:30:00.000
2012-06-01 21:00:00.000

or this:

DateInterval
2012-06-01 17:30:00.000
2012-06-01 18:30:00.000
2012-06-01 20:00:00.000
2012-06-01 21:00:00.000

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Apr 21, 2015

We are trying to find out the difference between tables in CUSTOMER database and CUSTOMER_coded database. The goal is to find out if there are any columns missing in each table of CUSTOMER_coded database.

We need the list of tables in CUSTOMER_coded database that misses some column compare to its peer in CUSTOMER database (list of columns being missing also).

I googled, but I get only all the columns in tables of database.

I need missing columns of all the tables when we compare these 2 databases( CUSTOMER and CUSTOMER_coded  databases).

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Oct 11, 2015

I want to know one small query..

id Name
1 hi
2 how
3 are
4 you
6 can
7 do
8 not
9 did 
10 to 

I deleted some records now my table have below mentioned rows..

id Name
1 hi
2 how
4 you
6 can
8 not
10 to 

I want to know  the missing records in my table.

OUTPUT IS. 3,7,9

how can  i do that using sql query.

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Mar 6, 2008

I have received some data out of a relational database that is incomplete and I need to find where the holes are. Essentially, I have three tables. One table has a primary key of PID. The other two tables have PID as a foreign key. Each table should have at least one instance of every available PID.

I need to find out which ones are in the second and third table that do not show up in the first one,
which ones are in the first and third but not in the second,
and which ones are in the first and second but not in the third.

I've come up with quite a few ways of working it but they all involve multiple union statements (or dumping to temp tables) that are joining back to the original tables and then unioning and sorting the results. It just seems like there should be a clean elegant way to do this.

Here is an example:



create table TBL1(PID int, info1 varchar(10) )

Create table TBL2(TID int,PID int)

Create table TBL3(XID int,PID int)


insert into TBL1

select '1','Someone' union all

select '2','Will ' union all

select '4','Have' union all

select '7','An' union all

select '8','Answer' union all

select '9','ForMe'





insert into TBL2

select '1','1' union all

select '2','1' union all

select '3','8' union all

select '4','2' union all

select '5','3' union all

select '6','3' union all

select '7','5' union all

select '8','9'


insert into TBL3

select '1','10' union all

select '2','10' union all

select '3','8' union all

select '4','6' union all

select '5','7' union all

select '6','3' union all

select '7','5' union all

select '8','9'

I need to find the PID and the table it is missing from. So the results should look like:








PID
MISSING FROM

1
TBL3

2
TBL3

3
TBL1

4
TBL2

4
TBL3

5
TBL1

6
TBL1

6
TBL2

7
TBL2

10
TBL1

10
TBL2



Thanks all.

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Jun 18, 2007

I have a sql sever 2005 express table with an automatically incremented primary key field. I use a Detailsview to insert new records and on the Detailsview itemInserted event, i send out automated notification emails.
I then received two automated emails(indicating two records have been inserted) but looking at the database, the records are not there. Whats confusing me is that even the tables primary key field had been incremented by two, an indication that indeed the two records should actually be in table.  Recovering these records is not abig deal because i can re-enter them but iam wondering what the possible cause is. How come the id field was even incremented and the records are not there yet iam 100% sure no one deleted them. Its only me who can delete a record.
And then how come i insert new records now and they are all there in the database but now with two id numbers for those missing records skipped. Its not crucial data but for my learning, i feel i deserve understanding why it happened because next time, it might be costly.

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Find Missing Data From Table

Jul 23, 2005

Here is an issue that has me stumped for the past few days. I have atable called MerchTran. Among various columns, the relevant columns forthis issue are:FileDate datetime, SourceTable varchar(25)SQL statement:SELECT DISTINCTFileDate, SourceTableFROMMerchTranORDER BYFileDate, SourceTableData looks like this:FileDate DataSource-----------------------------------2005-02-13 00:00:00.000S12005-02-13 00:00:00.000S22005-02-13 00:00:00.000S32005-02-14 00:00:00.000S12005-02-14 00:00:00.000S22005-02-14 00:00:00.000S32005-02-15 00:00:00.000S22005-02-15 00:00:00.000S32005-02-16 00:00:00.000S12005-02-16 00:00:00.000S22005-02-16 00:00:00.000S32005-02-17 00:00:00.000S12005-02-17 00:00:00.000S22005-02-18 00:00:00.000S12005-02-18 00:00:00.000S22005-02-18 00:00:00.000S32005-02-19 00:00:00.000S12005-02-19 00:00:00.000S3We run a daily process that inserts data in to this table everyday forall 3 sources S1, S2, S3Notice how some data is missing indicating the import process for thatparticular source failed.Example: Missing record2005-02-15 00:00:00.000S12005-02-17 00:00:00.000S32005-02-19 00:00:00.000S2Can someone please help me with a SQL Statement that will return me the3 missing records as above.Thanks in advance for all your help!DBA in distress!Vishal

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Jul 23, 2005

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Jan 15, 2008



I need to compare two tables in two different databases and get data that is only in one table.

Table 1 in DB1 and Table A in DB_A

I need all distinct IDs in Table 1 in DB1 that are NOT in Table A in DB_A
and copy those IDs into Table A.

Is the sql below correct in obtaining data?
Can I add the copy part also to this?



select ID

from DB1.dbo.Table1 aaa

where not exists ( select empID


from DB_A.dbo.TableA bbb
where aaa.ID = bbb.empID)

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May 13, 2008

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Rationale:
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Jun 4, 2008

Hi everyone,

I have recently converted my DTS packages to SSIS and deployed them to the new server. I have the 2000 and 2005 server running concurrently, all that is left for me to do is compare the the tables generated by the DTS and SSIS packages to see if they are the same.


How do I go about comparing the tables, which are from two different servers using SQL server 2005?



Thank you inadvance:)

Comparing data and integrity between two tables

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Sep 30, 2007

It seems that there should be a solution for my situation, but for the life of me I can't seem to figure it out.

I need to compare two "like" tables, containing similar data. Tbl 1 is "BOOKED" (which is a snapshot of inventory) and tbl 2 is "CURRENT" (the live - working inventory table). If I write my query as follows the the subsequent result is "duplicate" data.




Code Block
SELECT booked.item, booked.bin, booked.quantity, current.bin, current.quantity
FROM BOOKED
LEFT JOIN
CURRENT
ON booked.item = current.item







No matter what type of join I use, there is duplicate data displayed for each table. For example, if there are more bins in the BOOKED table that contain a certain product then the CURRENT table will repeat data and vica versa.

As follows:







Item
Bin
Quantity
Bin
Quantity

12345
A01
500
A01
7680

12345
B01
6
A01
7680

12345
C01
20
A01
7680

54321
G10
1032
E15
1163

54321
G10
1032
F20
523

54321
G10
1032
H30
750

98765
Z20
7000
Z20
8500

98765
Y15
2500
Y15
3000

98765
X10
1200
Y15
3000

What I would like to do is display Bin and Quantity only once and the repeating values as NULL or [BLANK]. Or, to display all of the bins from both tables and only the quantities from each table in relation to the bin found in that table, returning a "0" if no quantity exists.

This is what I'm after:







Item
Bin
Quantity
Bin
Quantity

12345
A01
500
A01
7680

12345
B01
6
B01
0

12345
C01
20
C01
0

54321
G10
1032
E15
1163

54321
F20
0
F20
523

54321
H30
0
H30
750

98765
Z20
7000
Z20
8500

98765
Y15
2500
Y15
3000

98765
X10
1200
X10
0



Is this possible? If so, how?

I also might add that it is ok for each table to contain multiple entries for any given item. This is basically being requested as an inventory variance report - inventory before physical count and immediatly after physical count - and will only be run once a year.

-----------------------------------------------
Just thinking out loud here:
What if I created three subqueries, the first containing only BOOKED information, the second containing only CURRENT information and the third being a UNION of both tables? Something like this:




Code Block
SELECT q3.bin, q1.item, ISNULL(q1.quantity, 0) as QTY_BEFORE, ISNULL(q2.quantity, 0) as QTY_AFTER

FROM

(select item, bin, quantity
from BOOKED)q1
Left Join

(select item, bin, quantity
from CURRENT)q2
on q1.item = q2.item
Left Join

(select bin, item
from BOOKED
UNION
CURRENT)q3
on q1.item = q3.item

Order By q1.item





I don't know if I wrote the UNION statement correctly, but I will have to try this when I get back to work...


Any suggestions?

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I would really appreciate your prompt response. I would also like to thank you very much in advance for your time/help.

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Jul 3, 2001

Thanks for your help...
I have two databases in two different servers, I am running this script which shows customers not in the second server. I am getting an error shown below. any idea of how to solve this issue.
Ali

CREATE view v_show_customers_not_in_GP as
select customer_id,company_name,contact_fname,contact_lna me,phone,alt_phone,fax,email,street_1,street_2,cit y,c.name,s.code as state,zip_code
FROM customer v,country c, state s
WHERE v.country_id =c.country_id
and v.state_id = s.state_id
and convert(char(15),customer_id ) NOT IN (select custnmbr from servername.dbname.dbo.RM00101 )


Server: Msg 18452, Level 14, State 1, Line 1
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.

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I need to compare records where these fields are matched:

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We always only one Compare 0 records in my table, so all compare 1 columns will compare with only one row per ID

My tables look like

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Insert Into @tab1 values ('101','2015-07-01',0)
Insert Into @tab1 values ('101','2015-07-02',1)
Insert Into @tab1 values ('101','2015-07-03',1)
Insert Into @tab1 values ('101','2015-07-01',1)
Insert Into @tab1 values ('101','2015-06-30',1)

Insert Into @tab1 values ('102','2015-07-01',0)
Insert Into @tab1 values ('102','2015-07-02',1)
Insert Into @tab1 values ('102','2015-07-01',1)

select * from @tab1

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My expected result set should be like ....

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Jun 2, 2015

I'm trying to avoid a large amount of manual data manipulation.

Here's the background: Legacy system that has (well let's call apples apples) pretty much no method of enforcing data integrity, which has caused a fairly decent amount of garbage data to be inserted in some tables. Pulling one of the [Individuals] table from within this Legacy system and inserting it into a production system, into the Table schema currently in place to track [Individuals] in this Production system.

Problem: Inserting the information is easy, how to deduplicate the records that exist within the staging table that the legacy [Individuals] table has been dumped into in production, prior to insertion. (Wanting to do this programmatically with SQL or SSIS preferably, so that I can alter it later to allow for updating existing/inserting new)

Staging Table Schema:

;
CREATE TABLE [dbo].[stage_Individuals](
[SysID] [int] NULL, --Unique, though it's not an index intended to identify the [Individuals]
[JJISID] [nvarchar](10) NULL,
[NameLast] [nvarchar](30) NULL,
[NameFirst] [nvarchar](30) NULL,
[NameMiddle] [nvarchar](30) NULL,

[code]....

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Currently I am running the following SQL just to get a list of the records that have a duplicate JJISID (I have other's that partition by Name/DOB/etc and will adapt whatever I come up with to be used for those as well):

;
select j.*
from (select ROW_NUMBER() OVER (PARTITION BY JJISID ORDER BY JJISID) as RowNum, stage_Individuals.*, COUNT(*) OVER (partition by jjisid) as cnt from stage_Individuals) as j
where cnt > 1 and j.JJISID is not nullNow, with SQL Server 2012 or later I could use LAG and LEAD w/ the RowNum value to do my data manipulation...but that won't work because we are on SQL Server 2008 in this environment.

[URL]

With, the following as a potential solution:

GSquared (3/16/2010)Here's a query that seems to do what you need. Try it, let me know if it works.

Performance on it will be a problem, but I can't fine tune that. You'll need to look at various method for getting this kind of data from the table and work out which variation will be best for your data. Without access to the actual table, I can't do that.

;
WITH CTE
AS (SELECT master_id,
MIN(ID) AS first_id,
MAX(Account_Expiry) AS latest_expiry
FROM #People
GROUP BY master_id)
SELECT P1.master_id,

[code].....

Unfortunately, I don't think that will accomplish what I'm looking for - I have some records that are duplicated 6 times, and I'm wanting to keep the values within these that aren't NULL.

Basically what I'm looking for, is to update any column with a NULL value to the corresponding Duplicate [Individuals] record value for that column.

**EDIT - Example, Record 1 has a JJISID with NULL NameFirst & NameLast BUT Record 2 has the same JJISID and values for NameFirst & NameLast. I'm wanting to propogate the NameFirst & NameLast from Record2 into Record1

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Hi ,
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Hi everyone,

I have 2 seperate databases and I need to check for rows that are different from each other in a table.

I used access to link the tables in a database and am using queries to check the tables. However, I am having trouble formulating the SQL. What I want to do is not just check for the ID field to see if it exists, but to make sure the whole row exists. How can I form an SQL statement for this?

I tried something like:

Select * from table1 where Column1 NOT IN (Select Column1 from Table2) AND Column2 NOT IN (Select Column2 from Table2). However, I do not think this is correct. I want to make sure that the rows are compared, not individual values.

Any help would be appreciated.

Thanks,
Pankaj

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