How to find difference in two tables

Hi all,
I am having 2 tables (Table1 and Table2 ) same structure.
1. Table1 is having some data.
2. Now, i got data in CSV file, which was loaded into Table2.
This data contains....
A. Data of Table1
B. Some colum values are different compare to Table1 column values.
(Pkey is same, but column values are different in Table1 and Table2)
C. Additional rows are there compared to Table1.
Now, what i want is......
I want to select the data from Table2,
1. The rows in which column values are different from the Table1
2. New records added from CSV file (i.e. Those records that are not
there in Table1).
Thanks in advance,
Pal

Thanks for your solution. It is working, but my problem is
Table1
COL1     COL2     COL3     COL4
1     col2     col3     col4
2     col2     col3     col4
3     col2     col3     col4
4     col2     col3     col4
Table2
COL1     COL2     COL3     COL4
5     col2     col3     col4 -- New row
6     col2     col3     col4 -- New row
1     col2     col3     col44 -- Different column value
2     col2     col3     col4
3     col2     col33     col4 -- Different column value
4     col2     col3     col4
select * from test2
minus
select * from test1
COL1     COL2     COL3     COL4
1     col2     col3     col44 --- needs to be update
3     col2     col33     col4 --- needs to be update
5     col2     col3     col4 --- needs to be insert
6     col2     col3     col4 --- needs to be insert
Actually, I need to update and insert those records through LIVE UPDATE in the remote database. In this case, Table1 data is in the remote database. The output of MINUS statement needs to be implimented in Table1, which is in remote database.
Any suggestion will be appreciated. Thanks,
Pal

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Find Differences between two tables at column level

Hi,
I have 2 tables one live table and the other History table..
If i have to find differences between live table and the latest version in the History table and also find which column got chaanged
How would i do that for a table which has many columns and i need each column for which the value has changed for a id
for ex:
Table 1 (LIve) Table 2 (History)
ID col1 col2 Version ID col1 col2 Version
1 ABC 123 V1 1 ABCD 123 v2
2 NBS 1234 V1 2 NBS 123 V2
Result set should be
Result Set:
ID col which changed
1 col1
2 col2
Because the values for that column had been changed
Except gives me all the differences not just the column level ..

The dynamic version using schema views... :D
--Build a coulple OF testing tables to play with
CREATE TABLE dbo.Table1 (
ID INT IDENTITY(1,1) PRIMARY KEY,
Col1 INT,
Col2 INT,
Col3 INT
CREATE TABLE dbo.Table2 (
ID INT IDENTITY(1,1) PRIMARY KEY,
Col1 INT,
Col2 INT,
Col3 INT
INSERT dbo.Table1 (Col1,Col2,Col3) VALUES
(123,456,789),
(111,222,333),
(444,555,666),
(777,888,999),
(321,345,769),
(179,753,758),
(362,362,236),
(856,874,896),
(821,729,324)
INSERT dbo.Table2 (Col1,Col2,Col3) VALUES
(123,456,789),
(111,999,333), --col2 diff
(444,555,666),
(777,888,999),
(321,345,123), --col3 diff
(179,753,758),
(362,362,236),
(234,874,896), --col1 diff
(821,729,324)
And then the actual solution...
DECLARE
@t1 VARCHAR(10) = 'Table1',
@t2 VARCHAR(10) = 'Table2'
IF OBJECT_ID('tempdb..#temp') IS NOT NULL DROP TABLE #temp
SELECT
c.TABLE_SCHEMA,
c.TABLE_NAME,
c.COLUMN_NAME,
c.ORDINAL_POSITION,
CASE WHEN u.COLUMN_NAME IS NOT NULL THEN 1 ELSE 0 END AS PK
INTO #temp
FROM
INFORMATION_SCHEMA.COLUMNS c
JOIN INFORMATION_SCHEMA.TABLES t
ON c.TABLE_NAME = t.TABLE_NAME
AND c.TABLE_SCHEMA = t.TABLE_SCHEMA
LEFT JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE u
ON c.COLUMN_NAME = u.COLUMN_NAME
AND c.TABLE_NAME = u.TABLE_NAME
AND c.TABLE_SCHEMA = u.TABLE_SCHEMA
AND OBJECTPROPERTY(OBJECT_ID(constraint_name), 'IsPrimaryKey') = 1
WHERE 1 = 1
AND t.TABLE_TYPE = 'BASE TABLE'
AND c.TABLE_NAME IN (@t1,@t2)
ORDER BY
c.TABLE_SCHEMA, c.TABLE_NAME, c.ORDINAL_POSITION
DECLARE @select VARCHAR(MAX)
SELECT @select = COALESCE(@select + ', ', '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME + '.' + t.COLUMN_NAME
FROM #temp AS t
ORDER BY t.TABLE_NAME, t.ORDINAL_POSITION
DECLARE @from VARCHAR(MAX)
SELECT @from = COALESCE(@from + ' FULL JOIN ', '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME
FROM #temp AS t
WHERE t.PK = 1
ORDER BY t.TABLE_NAME
DECLARE @on VARCHAR(MAX)
SELECT @on = COALESCE(@on + ' = ', '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME + '.' + t.COLUMN_NAME
FROM #temp AS t
WHERE t.PK = 1
ORDER BY t.TABLE_NAME, t.ORDINAL_POSITION
DECLARE @where VARCHAR(MAX)
SELECT @where = COALESCE(@where + CASE WHEN t.TABLE_NAME = @t1 THEN ' OR ' ELSE ' <> ' END, '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME + '.' + t.COLUMN_NAME
FROM #temp AS t
WHERE t.PK = 0
ORDER BY t.ORDINAL_POSITION, t.TABLE_NAME
DECLARE @sql VARCHAR(MAX) = '
SELECT ' + @select + '
FROM ' + @from + '
ON ' + @on + '
WHERE ' + @where
EXEC (@sql)
HTH,
Jason

Oracle 11g sql to find difference from two table data

I have two tables ACTUAL AND ESTIMATE having unique column(sal_id, gal_id) and amount, tax, date columns.
ACTUAL table
actual_id, sal_id, gal_id, process_flag, amount, tax date
A1 101 201 Y 10 1 27-Aug-12
A2 102 202 Y 20 2 27-Aug-12
A3 102 202 N 30 3 29-Aug-12
A4 302 402 N 40 3 30-Aug-12
ESTIMATE table
estimate_id, sal_id, gal_id, process_flag, amount, tax date
E1 301 401 Y 5 1 19-Aug-12
E2 302 402 Y 45 4 20-Aug-12
E3 302 402 Y 50 5 25-Aug-12
E4 301 403 Y 10 2 27-Aug-12
E5 301 403 N 15 3 28-Aug-12
E6 101 201 Y 12 3 29-Aug-12
Now My FINAL table, 1) Should have record for unprocessed (process_flag='N') from ACTUAL/ESTIMATE table for difference in amount and tax for (sal_id + gal_id) combination. If more than one processed record there, then max (date) should be consider.
FINAL table
actual_id, estimate_id, sal_id, gal_id, amount, tax
A3 null 102 202 10 1 (A3-A2 actual-actual)
A4 null 302 402 -10 -2 (A4-E3 actual-estimate with max date)
null E5 301 403 5 1 (E5-E4 estimate-estimate)
null E6 101 201 2 2 (E6-A1 estimate-actual)
So basically I need a query for (A-A) U (B-B) U (A-B) U (B-A).
I am using Oracle 11g Please help me.
Edited by: Suresh on Aug 31, 2012 7:38 PM
Edited by: Suresh on Aug 31, 2012 7:38 PM
Edited by: Suresh on Aug 31, 2012 10:53 PM

You need to provide better explanation here.A-A is always null.
You might be looking for something like this..
Untested version and also i cannot read your mind
select actual_id, sal_id, gal_id, process_flag,ld_amount,ld_tax,e_date
from(
select actual_id, sal_id, gal_id, process_flag,e_date, amount-lead(amount) over(partition by sal_id, gal_id order by e_date desc) ld_amount,
tax-lead(tax) over(partition by sal_id, gal_id order by e_date desc) ld_tax,
rank() over(partition by sal_id, gal_id order by e_date desc)rnk
from
(select * from actual a union
select * from estmt e)
) where rnk=1

How to find differences between two columns

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Hello ,
I have stucked in program as below scenario:-
I have two tables of huge data of same structure in a same schema.I need to find the difference exact values in tables.
By using MINUS we can find the difference between two table ,i need to find the what exact difference in the there values with colunm and value at that column.
Example TableA
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10 ABC 2001 EE 444 TT
40 XYZ 3002 RR 445 TT3
80 DEF 6005 YY 446 YY8
TableB
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10 ABC 2001 EE 444 TT
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81 DEF 6005 Yu 447 YY8
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I have a sample code for the same,this will compare the two tables for single row in each table .
what r the modification needed for the multiple rows of values in the two tables??
Please suggest!!
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IS
TYPE t_col
IS
TABLE OF VARCHAR2 (30)
INDEX BY PLS_INTEGER;
l_col t_col;
j NUMBER := 0;
l_sql VARCHAR2 (2000);
col1 VARCHAR2 (30);
col2 VARCHAR2 (30);
val1 NUMBER;
val2 NUMBER;
status VARCHAR2 (30);
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IS
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FROM all_tab_columns
WHERE table_name = 'TEST1';
BEGIN
FOR i IN c1
LOOP
j := j + 1;
l_col (j) := i.column_name;
END LOOP;
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THEN
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