JOIN over 3 tables with 'null' values?

Hello all,
I would like to join data from 3 tables, whereas from the 3rd table I just wanna join 2 columns, if a condition is met. otherwise those 2 columns should be NULL.
The following statement works, but only shows me the rows where all conditions are met. How do I display the rows from JOIN 1 if the JOIN 2 condition is not met?
SELECT
     a.c_name, a.c_date, a.c_description, a.c_sid,
     b.c_cID, b.type,
     c.name, c.value
FROM
     TABLE_1 a
INNER JOIN
     TABLE_2 b
ON
(b.c_name = a.c_name)
INNER JOIN
     TABLE_3 c
ON
(c.c_name = a.c_name)
AND
(c.comp_cID = b.comp_cID)
Thanks a lot and best regards,
Tom

OUTER JOIN

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Joining 3 tables with null values

Hi,
I have three tables that have varying data in. I want to write a query which will list all three in the result set, but when one of the tables doesn't have a row, write in No Value.
I will be intending on joining the tables with account numbers. What will be the syntax of a join with three tables where I am not sure which table will have null values?
Thanks...

Something like
select nvl(a.id,'No Value'), nvl(b.id, 'No Value'), nvl(C.id, 'No Value')
   from (select id from t1) a,
              (select id from t2) b,
              (select id from t3) c
where a.id = b.id(+)
      and a.id = c.id(+)
Hi,
I have three tables that have varying data in. I want to write a query which will list all three in the result set, but when one of the tables doesn't have a row, write in No Value.
I will be intending on joining the tables with account numbers. What will be the syntax of a join with three tables where I am not sure which table will have null values?
Thanks...

Sql query slowness due to rank and columns with null values:


Sql query slowness due to rank and columns with null values:
I have the following table in database with around 10 millions records:
Declaration:
create table PropertyOwners (
[Key] int not null primary key,
PropertyKey int not null,
BoughtDate DateTime,
OwnerKey int null,
GroupKey int null
go
[Key] is primary key and combination of PropertyKey, BoughtDate, OwnerKey and GroupKey is unique.
With the following index:
CREATE NONCLUSTERED INDEX [IX_PropertyOwners] ON [dbo].[PropertyOwners]
[PropertyKey] ASC,
[BoughtDate] DESC,
[OwnerKey] DESC,
[GroupKey] DESC
go
Description of the case:
For single BoughtDate one property can belong to multiple owners or single group, for single record there can either be OwnerKey or GroupKey but not both so one of them will be null for each record. I am trying to retrieve the data from the table using
following query for the OwnerKey. If there are same property rows for owners and group at the same time than the rows having OwnerKey with be preferred, that is why I am using "OwnerKey desc" in Rank function.
declare @ownerKey int = 40000
select PropertyKey, BoughtDate, OwnerKey, GroupKey
from (
select PropertyKey, BoughtDate, OwnerKey, GroupKey,
RANK() over (partition by PropertyKey order by BoughtDate desc, OwnerKey desc, GroupKey desc) as [Rank]
from PropertyOwners
) as result
where result.[Rank]=1 and result.[OwnerKey]=@ownerKey
It is taking 2-3 seconds to get the records which is too slow, similar time it is taking as I try to get the records using the GroupKey. But when I tried to get the records for the PropertyKey with the same query, it is executing in 10 milliseconds.
May be the slowness is due to as OwnerKey/GroupKey in the table can be null and sql server in unable to index it. I have also tried to use the Indexed view to pre ranked them but I can't use it in my query as Rank function is not supported in indexed
view.
Please note this table is updated once a day and using Sql Server 2008 R2. Any help will be greatly appreciated.

create table #result (PropertyKey int not null, BoughtDate datetime, OwnerKey int null, GroupKey int null, [Rank] int not null)Create index idx ON #result(OwnerKey ,rnk)
insert into #result(PropertyKey, BoughtDate, OwnerKey, GroupKey, [Rank])
select PropertyKey, BoughtDate, OwnerKey, GroupKey,
RANK() over (partition by PropertyKey order by BoughtDate desc, OwnerKey desc, GroupKey desc) as [Rank]
from PropertyOwners
go
declare @ownerKey int = 1
select PropertyKey, BoughtDate, OwnerKey, GroupKey
from #result as result
where result.[Rank]=1
and result.[OwnerKey]=@ownerKey
go
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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Join fact table with higher dimension level

how do i join fact tables with higher dimension levels with discoverer?
fact with detail at level C
measure X
dimension with
D->C->B->A
E->C
level
A B C
1------1------1
2------2------1
3------2------1
join between fact X and dimension level C
X=3*C because of sum(X) in discoverer and 3xC in dimension
is there a way to get correct values for X without creating a dimension like
D->C
E->

another way of asking this is whether you can create a summary table in Discoverer at a higher level than a dimension's fundamental grain. In other words - the summary examples in the documentation all describe leaving out one or more of your dimensions... they are either left in or completely taken out. But, some of the most effective summarization occurs when you summarize daily data to a monthly level. Assuming that I have a sales table (at a daily level, and a key value sales_date), and a table date_dim (primary key sales_date), I would like to create a summary sales_month_summary where the sales are grouped on month_year (which is a field in the sales_date table).
How is this done? I suspect that we can't use the date_dim table with the summary (due to the problems noted by the poster above). Do we have to create another table "month_dim"? Do we have to fold all of the desired date attributes (month, quarter, year) into the summary? Obviously we'd like to re-use all of the pertinent already existing date items (quarter, month, year, etc.), not recreate them over again, which would result in essentially two sets of items in the EUL. [One used for this month summary, and another used for the detail.]
I searched the forum - someone asked this same question back in 2000 - there was no answer provided.
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JDBC MS Access--- cannot extract entry with null value with data type Meta

I'm trying to extract a data entry with null value by using JDBC. The database is MS Access.
The question is how to extract null entry with data type memo? The following code works when the label has data type Text, but it throws sqlException when the data type is memo.
Any advice will be appreciated! thanks!
Following are the table description and JDBC code:
test table has the following attributes:
Field name Data Type
name Text
label Memo
table contents:
name label
me null
you gates
Code:
String query = "SELECT name, label FROM test where name like 'me' ";
ResultSet rs = stmt.executeQuery(query);
while (rs.next())
String name = rs.getString("name");
rs.getString("val");
String label = rs.getString("label");
System.out.println("\t"+name+"\t"+label);
catch (SQLException ex)
System.out.println(ex.getSQLState());
System.out.println(ex.getErrorCode());
System.out.println("in sqlexception");
output:
C:\Temp\SEFormExtractor>java DBTest
yet SELECT name, label FROM test
null
0
in sqlexception

The question is how to extract null entry with data type memo?Okay, what you need to do is this:
if (rs.getString("val") == null)
// do something
}This way, when it's a null value, you can check it first, and then handle it how you want, rather than getting an exception.

Joining a table with all_tab_columns

How is it possible to join a table with the tab_columns?
The query im trying to establish is that in my table they are 12 columns with months names. So under an input variable im trying to return the required values with the selected months. The only way i could think of to get the months to connect with the tab_columns table.
Any suggestion is really appreciated
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Sum(jan) JAN,
Sum(feb) FEB,
Sum(mar) MAR,
Sum(apr) APR,
Sum(may) MAY,
Sum(jun) JUN,
Sum(jul) JUL,
Sum(aug) AUG,
Sum(sep) SEP,
Sum(oct) OCT,
Sum(nov) NOV,
Sum(DEC) DECC
FROM budget a,all_tab_columns b
WHERE vsl_code = 4602
AND code = 1
AND year=2013
AND account_code='30'
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AND b.column_name IN
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                      FROM (SELECT Column_name, ROWNUM r
                                    FROM all_tab_columns b
                                    WHERE table_name = 'BUDGET'
                                    AND Column_id BETWEEN 3 AND 14
                                    ORDER BY column_id)
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group by bust;

Sorry, I don't understand what you're trying to do or why you think you need to join to all_tab_columns. Perhaps you could post the definition of the budget table, some sample data, and the results you're hoping to see.
Without that, I don't see why you can't just do this:
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Sum(jan) JAN,
Sum(feb) FEB,
Sum(mar) MAR,
Sum(apr) APR,
Sum(may) MAY,
Sum(jun) JUN,
Sum(jul) JUL,
Sum(aug) AUG,
Sum(sep) SEP,
Sum(oct) OCT,
Sum(nov) NOV,
Sum(DEC) DECC
FROM budget a
WHERE vsl_code = 4602
AND code = 1
AND year=2013
AND account_code='30'
group by bust;

Range interval partitioning with null value

Hello,
I have question, how can I create table with partition and after that I will insert null value in the partition key like this kind of
range interval partitioning with null value.
I have Oracle 11g.
Thanks
Mohammed

user13777053 wrote:
Thank you, but my question is about range interval not for range?http://docs.oracle.com/cd/E11882_01/server.112/e25523/partition.htm#VLDBG00220
A MAXVALUE literal can be defined for the highest partition. MAXVALUE represents a virtual infinite value that sorts higher than any other possible value for the partitioning key, *including the NULL value.*
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Joining 3 tables with similar structure

Hello all,
I'm executing sql queries in oracle 10g.
I want to join 3 tables into a single new table containing all the records from the 3 individual tables. The balance should be Summed up whereever the reg_id is duplicated between the 3 tables, such that there is just one entry per reg_id with the summed balance in my new table.
Sample data ( similar tables, with different values ) . tables : temp1, temp2, temp3
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92603013     183.77
92611902     419.46
92766121     77.04
93527720     24.84
93581368     120.09
93684684     89.88
92611902     113.66
93898873     52.19
93911192     53.93
93939027     89.88
93684684     152.58
Appreciate if someone can help me with the syntax.
thanks in advance

Hi,
Maybe this is what you want:
CREATE TABLE temp123 AS
WITH union_of_all_3 AS
    SELECT reg_id
    ,       balance
    FROM    temp1
UNION ALL
    SELECT reg_id
    ,       balance
    FROM    temp2
UNION ALL
    SELECT reg_id
    ,       balance
    FROM    temp3
SELECT    reg_id
,         SUM (balance) AS balance
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How to transfer database table contain null values, primary key, and foreign key to the another database in same server. using INSERT method.

how to transfer database table contain null values, primary key, and foreign key to the another database in same server. using INSERT method. thanks

INSERT targetdb.dbo.tbl (col1, col2, col3, ...)
SELECT col1, col2, col3, ...
FROM sourcedb.dbo.tbl
Or what is your question really about? Since you talke about foreign keys etc, I suspect that you want to transfer the entire table definition, but you cannot do that with an INSERT statement.
Erland Sommarskog, SQL Server MVP, [email protected]

To overcome column with null value-urgent

hai all,
when i query i get column with null value.
how to solve it?
thank in advance.
rcs
SQL> DESC SCOTT.CB1;
Name Null? Type
ID NUMBER
SUPCODE NUMBER
SUPLNAME VARCHAR2(100)
NAME VARCHAR2(100)
ITEMCODE VARCHAR2(10)
RECDOC NUMBER
RECDATE VARCHAR2(10)
TOTVALUE NUMBER
QTY NUMBER
CB_IPNO NUMBER
CB_VNNO NUMBER
CB_VDT VARCHAR2(10)
CB_AMT NUMBER
RECDOC_GR VARCHAR2(30)
RECDATE_GR DATE
SUPCODE_GR VARCHAR2(10)
TABLE LOOK LIKE THIS (NOT ALL DATA IN SAME ROW, BECUSE I INSERTED LAST 3 COLUMN VALUES):
ID     SUPCODE     SUPLNAME     NAME     ITEMCODE     RECDOC     RECDATE     TOTVALUE     QTY     CB_IPNO     CB_VNNO     CB_VDT     CB_AMT     RECDOC_GR     RECDATE_GR     SUPCODE_GR
2015               AAAA                04117     9083          10545.6     78
2016               BBBB                    04609     9087          25200     3600
2017               GGGG                    04609     9088          28175     4025
2018                                   36591371.64     2565017.27
                                                                 00001/07-08     02/04/2007     14020362
                                                                 00002/07-08     02/04/2007     14020362
                                                                 00003/07-08     02/04/2007     14010254
                                                                 00004/07-08     02/04/2007     14010254
                                                                 00005/07-08     02/04/2007     14021458
SQL> SELECT DISTINCT ID, SUPCODE_GR, NAME, ITEMCODE, RECDOC, RECDATE_GR, TOTVALUE, QTY FROM SCOTT.CB
1;
ID SUPCODE_GR
NAME
ITEMCODE RECDOC RECDATE_G TOTVALUE QTY
1
PRO.AT.ALU.POWDER UNCOATED
04609 15 51975 7425
2
PEN, GEL PEN
07969 17 154 11
ID SUPCODE_GR
I NEED RESULT AS FOLLOWS (ALL RESPECTIVE DDATA IN ONE LINE NOW NOT LIKE THAT):
ID     SUPCODE     SUPLNAME     NAME     ITEMCODE     RECDOC     RECDATE     TOTVALUE     QTY     CB_IPNO     CB_VNNO     CB_VDT     CB_AMT     RECDOC_GR     RECDATE_GR     SUPCODE_GR
2015               AAAA                04117     9083          10545.6     78                         00001/07-08     02/04/2007     14020362
============

Even accounting for the formatting, I'm not sure I even understand the question. It could be any number of different problems or non-problems.

Pro*C & SQLDA with NULL value for predicate column

Hi: I am using a C program to update a table via a dynamic sql (method 4) and SQLDA. In the update statement predicate, I have place holders (as in TBLCOL=:C000). One of the columns in the predicate contains null values, so I set L[n] = 0, V[n] = pData (which pData[0] = '\0'), *(I[n]) = -1, and T[n] = 5 (for text). I cannot find the row that I know is there.
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ExpiryTime
to make sure you get a fuller picture of the audit record.
Your selection does not cover all events and descriptions
br,
Chris

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Hello everybody,
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Sastry

How to create a dimension object in SAP BW Unv with Null value

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Hi Thilo,
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Left outer join 3 tables with where-statement

Hi folks,
I hope you can understand (and maybe solve) my problem.
Generally I try to left outer join three tables. The third table is used for a WHERE-statement.
The three table structures are the following:
table 1 (user)
user1 | key
table 2 (detail)
key | ID
table 3 (header)
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|-----|----
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I tried this coding:
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Regards
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Regards,
Freek

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Hi,
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Pavin

JOIN over 3 tables with 'null' values?

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