Comparison Of 2 Tables
Jul 13, 2013
I am doing this 2 queries, they get data from the same tables in a very different way. The new way is a lot faster but of course there are problems. There are some discrepancies in the results. Both queries produce results with more than 200.000 rows. Second one has ca. 100 rows less than the first one and some of the results are wrong (most are correct though).
My question is how do I find the differences. I did the left outer join when column a.result != b.result (lines are defined by date and ID so they should be unique).but the join gives me problematic results (some are not different at all, some differences are not in the result).so how do I find the differences between 2 queries, including missing results/rows?
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Jun 20, 2014
This is my scenario. I have two tables
1)FM_SHARE_RO_MOVED (5 COLUMNS)
2)PARSE_FILE INSTANCE (16 COLUMN)
column in FM_SHARE_RO_MOVED
File_name
FG00E3PK.csv
column in PARSE_FILE INSTANCE
File_Location
D:ToParseFLEXSTARPNGFLEXSTAR12FG00E3PK.csv
I want to check if the values in file name in FM_SHARE_RO_MOVED is available in PARSE_FILE_INSTANCE. And if it is available the update a column in FM_SHARE_RO_MOVED
Status
OK
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May 25, 2015
I have a requirement to compare data between two tables in SQL Server.
What is the fastest way to do it using SSIS? There are approx 6~7 millions of records in each table.
My solution: Read both the tables and store the data in Object Type variable. Then run an except query. But I am stuck at except query part. How do I implement it?
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Nov 23, 2000
Dear All
I am new to the topic T-SQL.
I am trying to use T-SQL to merge the content of two tables (table1 and table2) into one table making sure there are no duplication.
I wonder if any body can let me have a simple code.
Best Regards
Saad
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Sep 13, 2007
Hey guys what would be the easiest way to create a report of value changes for particular records from one day to the next..... ?
Any suggestions would be greatly appreciated....
thanks,
Jonathan
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Aug 8, 2006
Hi there! can anyone help me out??? I need to compare a date from the database and the system date which will be coded in a store procedure in SQL... HELP!!!!!
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May 21, 2008
I have a table with a field with a bit datatype. When I execute the stored procedure line if @bitvalue = 1 begin ...
and the value is passes as 0 the statements beneath the begin execute. What am I doing wrong?
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Jun 27, 2000
Hi...
I have a problem comparing dates in SQL Server 7.
I want to find results where date1 = date2.
I am having problems becausing SQL is also trying to compare the time which
is included in the field value e.g. 03/04/00 12:01:32
So even if the dates are equal the time may be different so the results are not shown?
I've tried SUBSTRING, and CONVERT,CAST etc.. and still can't get it to work
Any ideas???
Thanks.
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Oct 3, 2000
Is there a way to compare two similar tables? I'm more interested in finding out if the data content is exactly the same or not between the two tables.
Thanks for your help.
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Aug 19, 2003
We are converting our project into new version. They have done lot of changes in new version including normalization/denormalization. I need to compare the old and new database.
Do you have any standard script or procedure like SQL Compare software?.
Let me know what are the possibilties we need to check.
Your help appreciated.
Thanks,
Ravi
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Oct 23, 2003
Good day,
I am receiving garbage data from my other department as follows.
I want:
'12/05/03' for example.
I get:
'//'
'00/00/00'
And other garbage. All of which crashes the transaction because it cannot be converted to Datetime.
What I would like to do is something like this:
IF @v_date > '01/01/50'
BEGIN <-- statement will crash if bad data)
Something to trigger a Boolean (True/False) validation of the data.
I want to know if it is even a date before I run it through my block.
Any thoughts?
I don't want to add a new IF block for every bizarre thing they send me.
Thanks ahead of time.
PS - I guess I could just raise an exception and handle it in a block that way, but am still curious.
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Dec 11, 1998
Hi friends,
How can I do, in one Trigger, to returns if two columns, one of the Inserted and other of the Deleted, are differents ? I used this example:
If ( select Name from inserted ) !=
( select Name from deleted )
Insert Into Log_System
( Key_Mame, User_Name, Date, Field, Value, Table_Name )
Select 'COD. PROD: ' + Convert( char(10), I.Cod_Prod ),
SUSER_NAME(), GetDate(),
'Name', Convert(Char(255), D.Name ),
Convert(Char(255), I.Name), 'U', 'PRODUCTS'
From Inserted I, Deleted D
But, if one of them is Null, then the comparison result returns FALSE.
Examples:
1 - If in the Table are keeped null and the new value is different of Null
the comparison result returns FALSE.
2 - If in the Table are keeped a value and the new value is null the
comparison result returns FALSE too.
Excuse me, my English is not currently.
Thanks !
Rodney.
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May 15, 2001
Hi,
Assuming a table with a column defined char or varchar.
I have a SQL query like this :
Select * from table1 where column1='Building'
It returns the same result that
Select * from table1 where column1='BUILDING'
It is my understanding SQL Server (verison 7 or 2000, I tried on both) is lower/capital insensitive by default when it is installed. If I want SQL Server to be case-sensitive with my char or varchar columns, where can I set it?
Is it at database level or server level I can find this setting . What is the setting that control it?
Best Regards,
Alain Gagne, Lead DBA
gagnea@msagroup.com
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Jan 12, 2006
Hello im trying to run a simple query where i compare something simple like BEARING to a field in the database using this query.
Code:
SELECT table1.STK_NO, table1.STK_NO2
FROM table1
WHERE (LEN(CLEANSED_REF)>2)
AND ('BEARING' LIKE '%'+table1.CLEANSED_REF+'%')
Inside the table i can see the CLEANSED_REF field and its value is "000BEARINGBRNG000". When i run the query i get no records returned.
But if i run
Code:
SELECT table1.STK_NO, table1.STK_NO2
FROM table1
WHERE (LEN(CLEANSED_REF)>2)
AND (table1.CLEANSED_REF LIKE '%BEARING%')
The query returns the row i wanted. Can anyone tell me why this wont work the first way, but works the second?
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Aug 13, 2004
Morning!
Folks, i want some links where i could find healthy stuff regarding New Features and Compliance levels, performance comparisons, TPC tests etc about SQL 2000 and Yukon specially.
I've to submit a document regarding Top database features that shall be used for a Medical-Billing Software in plan.
Howdy!
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Dec 28, 2005
I have two tables that I am needing to link by the tables date field. In one table the date field is defined as varchar(23). The time for this field is always zeros.
Example: '2005-12-27 00:00:00.000'
The other table is defined as datetime, and it does have the date and time in this field.
Example: 2005-12-27 08:00:35.000
The problem i am having is
2005-12-27 00:00:00.000 does not = 2005-12-27 08:00:35.000.
Because I will never have more than one record on the same date I would like to be able to only compare the date. Example 2005-12-27 = 2005-12-27
Since the fields are 2 different field types, this is giving me a problem. Could someone please help. I have tried everything I know to do.
What I really need is the a way to format the datetime fields date into a string such as '2005-12-27'.
Hopefully what i have written makes sense.
Thanks
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Oct 4, 2006
I had an application go down yesterday...it was giving a Type Mismatch error and the support team couldn't figure it out.
My suspicion is that a field in the database got populated with a character the vb app didn't like when it renders the information.
I'd like to prove that theory...but the database is large (4gb) and I'm not sure how to do a database comparison to see where the records differ.
Anybody have a script to get me started OR some experience to share?
Thanks,
Alex8675
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Jan 22, 2008
In management studio, is there a way to compare databases side by side?
Or would anyone know of any freeware out there that would do such a task?
:beer:
thanks in advance.
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May 15, 2008
Hi,
I have a table in sql server 2000.I delete some rows in the table.I would like to know the differences before & after deletion. Is it possible?
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Jul 23, 2005
I have an Employee table with 3000 records and an Excel file having themodified data of those emplyoees. Some of the data of Excel may be sameas that of table data but some may differ. EmpId is the unique field.Other than this field, other fields of Excel may have modified data.Ineed to compare the data from SQL Server table with Excel Data.I decided to write a VB Program having two recordsets,one for SQLServer and other for Excel and compare each field's value. If themodified value is found then update that to table. Is there any way tocompare in SQL Server itself?Madhivanan
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Jul 20, 2005
I am looking for some papers/information that compare relationaldatabases such as oracle, mysql, sql server etc. I am particularlyinterested in their features such as locking mechanisms, integrityconstraints, views... Anyone know where I can find the information?Thanks,Susan
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Jul 20, 2005
I'm in need of a sql query that I'm not sure is possible. Here is anexample of how it's laid out.employee ID Job class Last Change Date12345 x 2/1/200412345 y 1/15/200412345 z 1/1/2004We know that this person is in job class 'x' because it's the mostrecent change. Is there a way to write a query that will exclude thelines 'y' and 'z' because they are currently incorrect?I would appreciate any help I could get. Thanks
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Dec 29, 2005
As many of you know I've been hunting down a SQL CE alternative / embedded DB that is easily portable among handhelds.
It turns out, that without paying for some other DB, there really aren't any good ones... Unless you go GPL, and the interpretation of GPL that most are using is that your code too is GPL even though you may only Dynamically Link to their app. I think this is likely wrong, but none the less I'm back here yet again.
What I'm looking for this time is a definition of how SQL Server CE is implemented, how it differs from a full blown DB, etc, so I can more thourally explain "why SQL CE" is an embedded DB, and how it isn't the full blown SQL Server that has a bad reputation with some.
My guess is:
SQL Server CE is implemented via DLL. There aren't sockets etc to allow you to connect, and it operates more like an advanced hash on the file system.
Please correct me if i'm wrong, or... send me a link where I can further research. Also, if you have another embedded DB as a suggestion, that's free of course, please point it my way.
Thanks!
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Mar 7, 2007
How would one go about writing an expression such as:
var not in (a to g, s to z) in the expression builder to be evaluted with and iif statment
iif(var not in (a to g, s to z),var,"not in listed")
I would rather not have to write this in the SQL statement as a case statement.
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Aug 24, 2007
Hi guys,
I'm trying to do a comparison of 2 data sets. Basically what I want is: 'where event date from event number -24 is earlier than the event date for event number -13'
To get the eventdate for the eventno's, I have the following 2 queries:
select eventdate
from caseevent, cases
where eventno = -24
select eventdate
from caseevent, cases
where eventno = -13
So what i'm trying to say is: I want it so that the value of the first query is compared to be LESS than the value of the second query...
Any help please????
Thank you!
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May 31, 2007
I am having a problem with the following expression
=IIf(Fields!client_short_name.Value Like "Capital% ", 1,0)
I am wanting to get a value of 1 if the field has any of the valid values that begin with Capital but it always returns 0. Any ideas?
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Sep 27, 2007
Hi,
I have table with four fields ID, Date1, Date2,Date3,Date4. Dates are in numeric farmat like 20070927. How can i get largest date (from date1 to date4) on each row. Please suggest query.
Thanks
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Aug 31, 2007
Not sure if possible but I need to produce a monthly TOP 10 Ticket Category report which I retrieve with:
SELECT TOP (10) Category, COUNT(Category) AS Count
FROM table
WHERE (DATEDIFF(mm, open_date, GETDATE()) = 1)
GROUP BY Category
ORDER BY Count DESC
Now I need to know how many tickets there were for those same categories in the previous month so I want my
result set to look somewhere along the lines of:
Catagory - Count Month - Count Previous Month
Is this possible?
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Jul 23, 2007
i have 2 tables
table1
id name salary
2 sas 2000
3 jsh 2220
table2
id name
1 sas
2 jsh
how can we copmpare string like
name=name
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Apr 9, 2008
I have 2 CLR Functions, both do the same thing, and they seem to perform the same based on testing. I am working on building examples for the web, and considered putting both up but I think the use of the Regular Expression is more of a best practice. Any thoughts on this?
Code Snippet
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
public partial class UserDefinedFunctions
{
[Microsoft.SqlServer.Server.SqlFunction]
public static SqlBoolean IsValidIP(string IPAddress)
{
int i;
string[] ipParts;
if (IPaddress == string.Empty)
{
return false;
}
else
{
ipParts = IPaddress.Split('.');
for (i = ipParts.Length - 1; i >= 0; i--)
{
try
{
int i = int.Parse(ipParts[i]);
if (i > 255)
return false;
}
catch
{
return false;
}
}
return true;
}
}
};
Regular Expression Function:
Code Snippet
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
using System.Text.RegularExpressions;
public partial class UserDefinedFunctions
{
[Microsoft.SqlServer.Server.SqlFunction]
public static SqlBoolean IsIP(string IPAddress)
{
// IP Address must be 4 part with each part 3 digits and less than 255.
Regex regex = new Regex(@"^((2[0-4]d|25[0-5]|[01]?dd?).){3}(2[0-4]d|25[0-5]|[01]?dd?)");
return (SqlBoolean)regex.Match(IPAddress).Success;
}
};
My only beef with the Regular Expression function is that Regular Expressions are often over the head of many people. I could provide both examples, and cross link them, but I am not sure about that. Any opinions?
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Dec 8, 2006
Hi,i need a column in a SELECT statement which returns always "true" (As a boolean value, not as a string)so I first tried SELECT field1, field2, true AS field3but this is not working. If I use "0 AS field3" this returns fine the 0, but this is not a boolean but a int.I also tried to make something like     "0 = 0 AS field"but also errors. In that context I discoverd that I could not compare values in the select field - I can use +,-+,* ... for having something like "2 * field1 AS field3" but I'm not clever enough to figure out how I would have a field "field1 < 12 AS field3" (ok I would use CASE, but I need the boolean return value...)Any ideas?Thanks in advance, Klaushow could I write something
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Dec 26, 2006
I have StratDateTime and EndDateTime fields in the table. I need to compare this two datetime fields and find seconds. I can use DateDiff but there are the following exceptions:
1. Exclude seconds coming from the date which are Saturday and Sunday
2. Exclude seconds coming from time range between 7:01pm and 6:59am
3. Exclude seconds coming from Jan 1st and Jul 4th.
How can I do this?
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Aug 25, 2007
I remember at some point I had some problem with this issue and I couldn't find something that suites a newbie.
The point that I was missing was that I couldn't pass the string representation of the date value to a query string. The key is to convert the string date to its equivalent datetime or smalldate .
For example imagine you'd like to select all Employees who where born on a specific date stored in a variable called myDate:
the BirthDay column in our Employee table has type smalldatetime
----------------------------------------------
string myDate = @"06/06/1978";
....
SqlCommand comm = new SqlCommand("SELECT * FROM EMPLOYEE WHERE [BirthDay] = Convert(smalldatetime,'" + myDate + "', 103))";
....
----------------------------------------------
Make suer that you don't miss single quotes around value of myDate in your query string.
For more info regrading the Convert function look at:
http://msdn2.microsoft.com/en-us/library/ms187928.aspx
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