How to guarantee two tables are in sync both ways on 10gR2?

a table at x database and b table at y database are wanted to be in sync.
if the request was in one way a dblink and a materialized view with refresh on commit would do the trick. but changes wanted to be replicated both ways, so I thought a trigger based solution but wanted to have your opinions if there is any clever trick for this kind of a need.
Thank you.

please correct me if I am wrong, by streams you meand async change data capture from redo logs right? In my opinion this is not easy to configure, and since these are two small parameter tables, so it will be throwing a rock to a frog?

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How do i know if two tables are identical in the data they contain ?

Oais,
If table structure is same or the columns you are interested to compare. You can use following example.
select
       OWNER, OBJECT_NAME, SUBOBJECT_NAME, OBJECT_ID, DATA_OBJECT_ID
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       , TEMPORARY, GENERATED, SECONDARY
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minus
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How to find how/if two tables are related?

Hello Frnds,
If there an FM which can tell if two tables are related so that a join can be performed on them and if yes, it can tell on which field they are related?
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thanks,
Rich, tables will be taken as input from user as parameters and hence will be dynamic. I want to use this logic for the purpose where user wud like to know, for example, which all DEL for SO are created by same user. Now in this case I want to know if there is relation between LIKP, LIPS and VBAK. But if user wants to see which all GR were created by same user who created POs, tables will be MKPF, MSEG and EKKO.
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How to keep two HD's in sync? They both contain my Sample Libraries, one is in my desktop the other in my laptop…essentially they contain the same items, but, the thing is: when I'm working on one I begin to delete, modify and add to the pool, and so the two become out of sync.
It's hard to know what exactly I've changed where. (So, what I usually do is take out things that I edit and re-save them separately, just in case, but this creates vast quantities of unnecessary duplicates).
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Here's what I'm thinking:
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emirium wrote:
It's hard to know what exactly I've changed where.
Here's what I'm thinking:
What if I was to use Carbon Copy Cloner, and just clone one onto the other, back and forth regularly? (Using incremental backup BTW)
If you are very strict about changing just one drive at a time, you can use CCC or ChronoSync and I think it will be fine.
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hi
how to join two tables using inner join if the first table has two primary keys and second table has 3 primary keys

Would describe type of joins in ABAP, which might differ with other joins.
The join syntax represents a recursively nestable join expression. A join expression consists of a left-hand and a right- hand side, which are joined either by means of INNER JOIN or LEFT OUTER JOIN. Depending on the type of join, a join expression can be either an inner (INNER) or an outer (LEFT OUTER) join. Every join expression can be enclosed in round brackets. If a join expression is used, the SELECT command circumvents SAP buffering.
On the left-hand side, either a single database table, a view dbtab_left, or a join expression join can be specified. On the right-hand side, a single database table or a view dbtab_right as well as join conditions join_cond can be specified after ON. In this way, a maximum of 24 join expressions that join 25 database tables or views with each other can be specified after FROM.
AS can be used to specify an alternative table name tabalias for each of the specified database table names or for every view. A database table or a view can occur multiple times within a join expression and, in this case, have various alternative names.
The syntax of the join conditions join_cond is the same as that of the sql_cond conditions after the addition WHERE, with the following differences:
At least one comparison must be specified after ON.
Individual comparisons may be joined using AND only.
All comparisons must contain a column in the database table or the view dbtab_right on the right-hand side as an operand.
The following additions not be used: NOT, LIKE, IN.
No sub-queries may be used.
For outer joins, only equality comparisons (=, EQ) are possible.
If an outer join occurs after FROM, the join condition of every join expression must contain at least one comparison between columns on the left-hand and the right-hand side.
In outer joins, all comparisons that contain columns as operands in the database table or the view dbtab_right on the right-hand side must be specified in the corresponding join condition. In the WHERE condition of the same SELECT command, these columns are not allowed as operands.
Resulting set for inner join
The inner join joins the columns of every selected line on the left- hand side with the columns of all lines on the right-hand side that jointly fulfil the join_cond condition. A line in the resulting set is created for every such line on the right-hand side. The content of the column on the left-hand side may be duplicated in this case. If none of the lines on the right-hand side fulfils the join_cond condition, no line is created in the resulting set.
Resulting set for outer join
The outer join basically creates the same resulting set as the inner join, with the difference that at least one line is created in the resulting set for every selected line on the left-hand side, even if no line on the right-hand side fulfils the join_cond condition. The columns on the right-hand side that do not fulfil the join_cond condition are filled with null values.
Note
If the same column name occurs in several database tables in a join expression, they have to be identified in all remaining additions of the SELECT statement by using the column selector ~.
Example
Join the columns carrname, connid, fldate of the database tables scarr, spfli and sflight by means of two inner joins. A list is created of the flights from p_cityfr to p_cityto. Alternative names are used for every table.
PARAMETERS: p_cityfr TYPE spfli-cityfrom,
p_cityto TYPE spfli-cityto.
DATA: BEGIN OF wa,
fldate TYPE sflight-fldate,
carrname TYPE scarr-carrname,
connid TYPE spfli-connid,
END OF wa.
DATA itab LIKE SORTED TABLE OF wa
WITH UNIQUE KEY fldate carrname connid.
SELECT ccarrname pconnid f~fldate
INTO CORRESPONDING FIELDS OF TABLE itab
FROM ( ( scarr AS c
INNER JOIN spfli AS p ON pcarrid = ccarrid
AND p~cityfrom = p_cityfr
AND p~cityto = p_cityto )
INNER JOIN sflight AS f ON fcarrid = pcarrid
AND fconnid = pconnid ).
LOOP AT itab INTO wa.
WRITE: / wa-fldate, wa-carrname, wa-connid.
ENDLOOP.
Example
Join the columns carrid, carrname and connid of the database tables scarr and spfli using an outer join. The column connid is set to the null value for all flights that do not fly from p_cityfr. This null value is then converted to the appropriate initial value when it is transferred to the assigned data object. The LOOP returns all airlines that do not fly from p_cityfr.
PARAMETERS p_cityfr TYPE spfli-cityfrom.
DATA: BEGIN OF wa,
carrid TYPE scarr-carrid,
carrname TYPE scarr-carrname,
connid TYPE spfli-connid,
END OF wa,
itab LIKE SORTED TABLE OF wa
WITH NON-UNIQUE KEY carrid.
SELECT scarrid scarrname p~connid
INTO CORRESPONDING FIELDS OF TABLE itab
FROM scarr AS s
LEFT OUTER JOIN spfli AS p ON scarrid = pcarrid
AND p~cityfrom = p_cityfr.
LOOP AT itab INTO wa.
IF wa-connid = '0000'.
WRITE: / wa-carrid, wa-carrname.
ENDIF.
ENDLOOP.

How to print two tables adjacent to each other?

Hi,
Scenario
I have a form with a body page and two tables. The property of the body page is set to 'Flowed', 'top to bottom' as flow direction and the check box for page break is set.
Requirement
The two tables need to be printed adjacent to each other.
Approach followed until now
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Dear Andres,
I tried as per you suggestion and it works fine. Thanks a lot.
Now adding to this, I am trying to print the 'formatted text'. The tables have two columns. the first column is a normal field and the second column is table having the 'formatted text'.
As per your suggestion, I concatenated the two tables in one table. So the final table has 2 normal fields and 2 tables.
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Settings maintained:
I have set the 'Body' row of the table to 'Flowed' with direction as 'Western text' (Top to bottom does not help ).
The settings for Column 2 & 4 (tables) are maintained as:
1. The Table is set to 'Flowed' with direction 'Top to Bottom'.
2. The body row is 'Flowed' with direction 'Western Text'
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The sample data has around 10 entries in the (final) table. When I try to print the form, if column2(table) is initial, the data in Column3 and 4 are shifted towards Left hand side.
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Regards
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How to comapare two tables data difference

Hi all,
Can any one tell me how to compare two tables data of two different data bases .
Table names are same in both databases.
Thanks You
Regards,
P Prakash

833560 wrote:
I don't have privilege to create data base link ,If the database has no link so that you can query the the data, you have two options.
Find someone with the privilege to create the link and write a query like this
Re: Efficient way to comapre two tables.
Which as I mention may not be quick,
Kindly tell me some other way .But will be quicker than your other option which is to dump the data into two spreadsheets and start reading.

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MI number;
(2)ASIA_P
ID number;
When I insert a new value into the asia.MI ,I also can
insert the same value into the asia_p.id field.
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create or replace trigger MI_TRG
before insert on asia
for each row
declare
seq number;
begin
select MI_SEQ.Nextval into seq from dual;
:new.MI:=seq;
insert into ASIA_PRO(MI_ID)
values
(seq);
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thanks
zzm

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hsaprd@706447>
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We keep stock so this can not be MOT (made to order) system.
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ref order
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available qty
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How to guarantee two tables are in sync both ways on 10gR2?

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