He had to know the right outer join using...
He had to know the right outer join using...
For example: first query left outer join for the emp table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the E.DEPTNO = D.DEPTNO)
Second query left outer join for the Dept table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the D.DEPTNO = E.DEPTNO)
In the example above I just Exchange where condition condition to get an outer join of two table with a left outer join itself. Wat is use right outer join, instead, I can swap the status of table name for the result. Please suggest...
Hello
chan001 wrote:
He had to know the right outer join using...
For example: first query left outer join for the emp table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the E.DEPTNO = D.DEPTNO)
Second query left outer join for the Dept table: SELECT EMPNO, ENAME, D.DEPTNO FROM EMP E, Department D WHERE the D.DEPTNO = E.DEPTNO)
In the example above I just Exchange where condition condition to get an outer join of two table with a left outer join itself. Wat is use right outer join, instead, I can swap the status of table name for the result. Please suggest...
The two examples above use the old syntax outer join of Oracle. (I guess there should be a sign inside the parentheses, e.g.. +)
... WHERE E.DEPTNO = D.DEPTNO (+)
)
The LEFT OUTER JOIN and RIGHT OUTER JOIN terms apply only to the ANSI join syntax, e. g.
.
.. FROM EMP E
DEPT LEFT OUTER JOIN D ON E.DEPTNO = D.DEPTNO
As Blushadow said above, there's no real point in having LEFT OUTER JOIN and RIGHT OUTER JOIN; What you can do with one (or a combination of both) can be done with the other. Most people use LEFT OUTER JOIN systematically and never use RIGHT OUTER JOIN.
There are situations where using a combination of the two would mean a little less striking, but only a little less and this kind of situation is very common, and one may wonder if the somewhat shorter code is more specific. I suggest that forget you RIGHT OUTER JOIN.
Tags: Database
Similar Questions
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Full table on the right outer join scan
Hello, I need help. Here's my query-
SELECT / * + first_rows (100) * /.
a.custom_gr_id, a.custom_gr_name AS customgroupname,
a.custom_gr_type_id AS customtypeid, b.workspace_id, b.NAME, a.itime,
a.is_shared_org AS est_partagee
OF custom_group_pa one
RIGHT OUTER JOIN
account_workspace_pa b ON (a.workspace_id = b.workspace_id
AND (a.delete_flag IS NULL or a.delete_flag <>1)
AND a.owner_id = '123')
WHERE b.workspace_id <>- 9999
AND b.workspace_type_id = 1
AND b.delete_flag = 0
AND EXISTS (SELECT 1
Of account_workspace_type c
WHERE b.workspace_type_id = c.workspace_type_id)
ITime to ORDER BY DESC;
Account_workspace_pa almost 1 500 483 lines and custom_group_pa had 200 000 lines and account_workspace_type is a very small table of 10 lines.
I always get a full on table account_workspace_pa table scan, while I have clues about workspace_id AND I index on workspace_id, workspace_type_id and delete_flag. The request is expected to produce less than 500 lines.
Here's the plan I make-
Plan
COUNCIL of the SELECT STATEMENT: FIRST_ROWSCost: 3 931 bytes: 405 108 cardinality: 7 502
8 SORTING ORDER BY ORDER BY a.ITIME DESCCost: 3 931 bytes: 405 108 cardinality: 7 502
7 LOOPS IMBRIQUEES EXTERNAL (ACCOUNT_WORKSPACE_TYPE at ACCOUNT_WORKSPACE_PA) in CUSTOM_GROUP_PACost: 3 930 bytes: 405 108 cardinality: 7 502
3 LOOPS IMBRIQUEES ACCOUNT_WORKSPACE_TYPE to ACCOUNT_WORKSPACE_PACost: 2 280 bytes: 210 056 cardinality: 7 502
1 INDEX UNIQUE INDEX (SINGLE) ADR_DEV SCAN. SYS_C0025442 aliased as cCost: cardinality of 0 bytes: 6: 1
TABLE 2 ACCESS FULL TABLE ADR_DEV. ACCOUNT_WORKSPACE_PA alias ADR_DEV_DATA Tablespaceb.WORKSPACE_ID b! = - 9999, b.WORKSPACE_TYPE_ID = 1 b.DELETE_FLAG = 0Cost: 2 280 bytes: 165 044 cardinality: 7 502
VIEW 6 (Embedded SQL) cost: 0 bytes: 26 cardinality: 1
TABLE 5 ACCESS BY INDEX ROWID TABLE ADR_DEV. Aliased as one on ADR_DEV_DATA TablespaceCost CUSTOM_GROUP_PA: 04:00 cardinality: 1
4 INDEX RANGE SCAN INDEX ADR_DEV. IDX_CG_WSID_DF_OWID aliased as aa.delete_flag (+) is NULL, a.delete_flag (+)! = 1, a.owner_id (+) = '123', a.workspace_id (+) = b.workspace_idCost: cardinality 3: 1
If someone can advise, why I always make a full table scan on table account_workspace_pa and what I can do to have a systematic index scan?
Thank you.If you need all the lines then that would be a clue do for you?
You don't necessarily need a full table scan. But if you have need of all ranks, it is certainly more effective to do a full scan (read through all of the blocks table in bulk, once) rather than navigate throu an index and jump from block to block to block (probably one at a time, probably having to hit most of them more than once until the work is done) after the ROWID as they occur in the index.
Also, fully entered null will not appear in the index, so (depending on your data, NOT NULL constraints, etc.) it may be possible that navigate through an index will cause lines to be ignored.
I think you look at that and see a problem, but the answer is: it's really the best way to accomplish what you're asking.
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There are four tables:
Family
Parent
Child
Grandchild
Ideally, they have all documents, such as
F1 - P1 - C1 - G1
F2 - P2 - C2 - G2
F3 - P3 - C3 - G3
But sometimes,.
F1 - P1 - C1 - null
F2 - P2 - null - null
F3 - P3 - null - null
For the case of the latter, maybe I need to right outer join. If it's between two tables, the right outer join is easier. But among the four tables, inner family join parent, child of the outer join, then the big kid outer join. Maybe even this has been done? If an outer join in this case is not relevant, what other options are available?
Thank you
(ORACLE 11.2)Hello
As Salomon, said
FROM p LEFT OUTER JOIN c
means exactly the same thing that
FROM c RIGHT OUTER JOIN p
Everything you do with LEFT OUTER JOIN you could also do with RIGHT OUTER JOIN, and vice versa. If either one did not exist, you may do whatever you want with the other. In practice, it's just what's happening: most of the people always use LEFT OUTER JOIN and never use a RIGHT OUTER JOIN.
You can have a series of outer joins cascading. If I understand your problem, a particular family may or may not have parents that belongs to him. If there are relatives, then you want to show the family with his parents to realteaed, but if there are no parents, so you want to show the family anyway. Similarly, you want to show parents whether or not they have children, and the children or not all my grandchildren are related to them. In general, which is written like this:
... FROM family f LEFT OUTER JOIN parent p ON p.family_id = f.family_id LEFT OUTER JOIN child c ON c.parent_id = p.parent_id LEFT OUTER JOIN grandchild g ON g.child_id = c.child_id
You can have a situation where (for example) a child is related to a family, but the child has no parent? In this case, you can still use LEFT OUTER JOIN, but join conditions would be different.
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Hi gurus,
Left outer join:
-------------------
Select * from A LEFT OUTER JOIN B on A.col = B.col;
by definition, a left outer join brings the rows that match the join condition and lines not corresponding to table A.
My question here is "corresponding to B and no matching rows in A" is that nothing, but... SELECT * FROM A;
can someone pls clarity...
Thank you.
Imagine that you had:
TableA
COLUMN1 COLUMN2
'A' 1
'B' 2
'C' 3
TABLEB
COLUMN1 COLUMN2
'A' 'X1'
'A' 'X2'
'B' 'Y'
'D' 'Z'
SELECT * FROM TABLEA;
A 1
B 2
C 3
Now, if you want to join (first column is either in table A or B, (deuxieme from tableA, third table B)
SELECT * FROM TABLEA A JOIN TABLEB B ON (A.COLUMN1 = B.COLUMN1)
A 1 X 1
A 1 X 2
B 2 Y
SELECT * FROM TABLE LEFT B EXTERNAL ON (A.COLUMN1 = B.COLUMN1) JOIN TABLE
A 1 X 1
A 1 X 2
B 2 Y
C 3 {null}
SELECT * FROM TABLE A TABLE RIGHT OUTER JOIN B (A.COLUMN1 = B.COLUMN1)
A 1 X 1
A 1 X 2
B 2 Y
D {null} Z
SELECT * FROM TABLE A TABLE FULL OUTER JOIN B (A.COLUMN1 = B.COLUMN1)
A 1 X 1
A 1 X 2
B 2 Y
C 3 {null}
D {null} Z
HTH
-
Looking for right outer join help
Hello
Can anyone help me re - write the query using right below outer join (join ansi) instead of using the (+) symbol.
Select cd.sku_id waitm,
Decode (cl.invn_lock_code, NULL, 'OH', cl.invn_lock_code) WLOCN,
Sum (CD.actl_qty) WQOH
cd, a.case_lock cl, a.case_hdr ch, a.item_master im a.case_dtl
where cd.case_nbr = ch.case_nbr
and cl.case_nbr (+) = ch.case_nbr
and cd.sku_id = im.sku_id
and ch.stat_code < = '64'
Cd.sku_id group,
IM.sku_brcd,
Decode (cl.invn_lock_code, NULL, 'OH', cl.invn_lock_code)
order of cd.sku_id
Kind regards
Gannu
Maybe something like this:
of a.case_dtl cd
Join a.case_hdr ch on (cd.case_nbr = ch.case_nbr)
Join a.item_master im on (cd.sku_id = im.sku_id)
join a.case_lock cl left (cl.case_nbr = ch.case_nbr)
where ch.stat_code<=>=>
I know you asked for right outer join, but I tend to write like that. You can certainly change if you wish.
-
Reg: Diff between Right Join and Right Outer Join
Dear all,
Kindly help me to find the difference between the two queries below where the results are the same.
SELECT * FROM emp RIGHT JOIN dept WE emp.deptno = dept.deptno;
SELECT * FROM emp RIGHT OUTER JOIN dept WE emp.deptno = dept.deptno;Thank you
Both are same
-
Difference between Inner join and right outer join...
Which is precisely the difference between an Inner join and right outer join...JOIN INTERNAL:-to return all rows from the two tables where there is a football game. That is to say. the table resulting from all the rows and columns will have values.
AND
RIGHT OUTER JOIN:-Returns all rows in the second table, even if there is no match in the first table.
-
Motorcycle deny non-American owners the right to join the PNM
Like other owners of non-us I HAV been denied the right to join the feedback of Motorola (MFN) network.
This confirms the thought racist and discriminating motorcycle against the owners other than the United States.
-
Get the error invalid identifier in the left outer join
I wrote a query and get the invalid identifier error during execution:
the exact error is: ORA-00904: "D". "" ACCT_NO ": invalid identifier
This query is not able to access the parent table alias in the subquery of the left outer join.
This is the query:
SELECT D.PROD_DESC_TX, BASE. ASSET_NUM, BASE. PROD_ID, BASE.NAME
OF TABLE1 D
LEFT OUTER JOIN
(
SELECT ASSET_NUM, PROD_ID, B.SID
FROM TABLE2 E
JOIN IN-HOUSE TABLE3 HAS IT E.PROD_ID = A.ROW_ID
JOIN INTERNAL TABLE 4 C ON A.PAR_PROD_INT_ID = C.ROW_ID
INTERNAL TABLE5 JOIN B ON C.ROW_ID = B.PAR_ROW_ID
AND B.TYPE = 'VALUE '.
AND B.NAME = 'VALUE '.
WHERE E.ASSET_NUM = ((CASE WHEN LTRIM (RTRIM (D.BANK_NO)) = '021 ' THEN '021' ELSE ' 020' END) |) LTRIM (RTRIM (D.APPL_CD)). LTRIM (RTRIM (D.ACCT_NO)))
) BASE ON ((CASE WHEN LTRIM (RTRIM (D.BANK_NO)) = '021 ' THEN '021' ELSE ' 020' END) |) LTRIM (RTRIM (D.APPL_CD)). LTRIM (RTRIM (D.ACCT_NO))) = BASE. ASSET_NUM
WHERE D.BANK_NO = 'VALUE '.
AND D.APPL_CD = 'VALUE '.
AND D.ACCT_NO = 'VALUE '.
Edited by: user648525 13 Sep, 2011 01:21I can easily look at your request at this time (using my iPhone on a train).
But trying out this line in the WHERE (the one with the invalid reference) clause in the main query.
Who is... in the view of inline, use only the logic of the join (the clauses).
Overflow the filtering logic (WHERE clause) to the main request. You may need to select some additional inline view columns to make these references work.
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How to find the right server to use windowsmail to send and receive e-mails?
Who is your current e-mail server? (Which is after the @ in your address).Windows Mail: Setting up an account of end-to-end
http://Windows.Microsoft.com/en-us/Windows-Vista/Windows-mail-setting-up-an-account-from-start-to-finish -
Original title: how to solve this problem:
System error
You have an error in your SQL syntax; consult the manual for your version of the MySQL server for the right syntax to use near ')' at line 5
Hi Roger,
It seems that you have problems with the SQL syntax. The question you have posted is related to encoding and it would be better suited to the MSDN Community. Please report it in the community below.
http://social.msdn.Microsoft.com/forums/SQLServer/en-us/home
Hope this is useful.
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Comparing the same outer join column.
Hello
I have the following query.
The problem I have is with the operator1 columns, I've done outer joins on the Users table that contains all users that will be returned in the tables of the peaks and Replens.SELECT Replens.Date1 AS date1, Replens.USER_ID AS Operator1, Picks.USER_ID AS Operator1, Users.Time AS Logged_in_hours, Replens.Quantity AS Pallet_replened, SUM(Replens.Quantity/Users.Time) AS Replen_rate, Picks.Quantity AS Cases_picked, SUM(Picks.Quantity/Users.Time) AS Pick_rate FROM (SELECT libclientreports.getshift(itl.dstamp) Date1, ITL.USER_ID, COUNT(ITL.tag_id) Quantity FROM INVENTORY_TRANSACTION ITL WHERE ITL.code = 'Replenish' AND TO_CHAR(itl.dstamp, 'DD-Mon-YYYY HH24:MI:SS') >= '01-Mar-2010 06:00:00' AND TO_CHAR(itl.dstamp, 'DD-Mon-YYYY HH24:MI:SS') <= '01-Mar-2010 18:00:00' GROUP BY libclientreports.getshift(itl.dstamp), ITL.USER_ID ORDER BY ITL.USER_ID, libclientreports.getshift(itl.dstamp) ) Replens, (SELECT libclientreports.getshift(itl.dstamp) Date1, ITL.USER_ID, SUM(ITL.update_qty) Quantity FROM INVENTORY_TRANSACTION ITL WHERE ITL.to_loc_id = 'CONTAINER' AND TO_CHAR(itl.dstamp, 'DD-Mon-YYYY HH24:MI:SS') >= '01-Mar-2010 06:00:00' AND TO_CHAR(itl.dstamp, 'DD-Mon-YYYY HH24:MI:SS') <= '01-Mar-2010 18:00:00' GROUP BY libclientreports.getshift(itl.dstamp), ITL.USER_ID ORDER BY ITL.USER_ID, libclientreports.getshift(itl.dstamp) ) Picks, (SELECT USER_ID, SUM(LibClientReports.getLoggedInHours (USER_ID, to_date('01-Mar-2010 06:00:00', 'DD-Mon-YYYY HH24:MI:SS'), to_date('01-Mar-2010 18:00:00', 'DD-Mon-YYYY HH24:MI:SS')) )/60 TIME FROM APPLICATION_USER GROUP BY USER_ID ) Users WHERE Users.Time != '0' AND Users.USER_ID = Picks.USER_ID (+) AND Users.USER_ID = Replens.USER_ID (+) GROUP BY Replens.Date1, Replens.USER_ID, Picks.USER_ID, Users.Time, Picks.Quantity, Replens.Quantity ORDER BY Replens.USER_ID, Replens.Date1
However, I want to merge this operator1 into one column. For example, here is the current data, I have for the two columns of the operator 1;
And here is the data I want to see;Operator1 Operator1_1 D9AGY19 D9AGY19 D9BEELB D9BEELB D9FULOPS (null) D9GAWKOWA D9GAWKOWA D9LIDDING D9LIDDING D9NOWAKS D9NOWAKS (null) D9AGY10 (null) D9AGY13 (null) D9AGY15 (null) D9AGY17
Notice the USER_ID to replace the values (null).Operator1 D9AGY19 D9BEELB D9FULOPS D9GAWKOWA D9LIDDING D9NOWAKS D9AGY10 D9AGY13 D9AGY15 D9AGY17
Could someone please explain to me how to make this happen? If you want more information please let me know.
Kind regards
SM.This should do if Op1 and Op1_1 are always the same or one or the other is null. If both are filled and have different values, then it will not work:
nvl(Replens.USER_ID, Picks.User_ID) as AS Operator1
-
Modeling of the left outer join
Hello world
I'm tender hand to you guys for a modeling help
I have a FACT, the customers, the Dim_Date and CUST_ADDRESS of tables to model
Fact and the client are joined through CUST_ID
FACT and DATE are joined through DATE_ID
CUST_ADDRESS must be attached to the top of the model through CUST_ID, DATE_ID and this join must be Left outer because sometimes the address does not exist or is not current, which means DATE_ID could be different between Dim_Date and CUST_ADDRESS
If it were to join internal, model would have been easy, because of the outside left that I am unable to model, it's pretty good.
Application under
Select D.DATE, C.CUST_NAME, CA. ADDRESS, F.AMOUNT
Of
F FACT
JOIN THE
CUSTOMER C
ON C.CUST_ID = F.CUST_ID
JOIN THE
DIM_DATE D
ON F.DATE_ID = D.DATE_ID
LEFT OUTER JOIN
CUST_ADDRESS CA
ON C.CUST_ID = CA. CUST_ID AND C.DATE_ID = D.DATE_IDThanks in advance
When I add the CUSTOMER and in FACT LTS CUST_ADDRESS
Stop it!
Don't add CUSTOMER and CUST_ADDRESS in the FACT of LTS. Why would add you to the LTS DO?
You design a management model: CUSTOMER is a dimension and it has its own logical table this logic table join with a logical join in the activity diagram. Ditto for CUST_ADDRESS.
So the change, I missed earlier is CUST_ADDRESS contains no Cust_ID (ACTUALLY existing), but contains a Cust_NO, and the table to translate Cust_NO in Cust_ID is CUSTOMER?
No problem...
Let's start with a new alias of CUSTOMER (to keep more simple to understand at the moment), call as you want, but this new alias will be the link between the FACT and CUST_ADDRESS.
In LTS of the dimension 'Address', you have CUST_ADDRESS initially, add an inner join on the new alias that you created in the LTS of the CUSTOMER. So now your 'Address' logical dimension contains the Cust_NO and Cust_ID and this will make the join to FACT.
Between CUST_ADDRESS and the CLIENT, you can keep an inner join, because the target is not not for get the address of the customer, but is having the Cust_ID in the address line.
Give it a try at that.
But do not add these tables in the LTS, they are logical dimensions.
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My web site have a blank space in the right side when using chrome
It seems perfectly on Safari, desktop and mobile, but in my android phone, I use chrome and nothing when I get this white ditch on the right. I even test in resizer to google to check it out and it seems fine. I only get this problem when using chrome. Has it to do with the fact that I'm the test catalyst for business?
I think it's a bug. because when I delete some items, it works well and everything seems to be good.
Please help me!
Here is the link to the site
http://bufeteostos02.BusinessCatalyst.com/index.html
Thanks for sharing the file with me.
You have created a black rectangle in the home page to give it a black background. This rectangle is the origin of the problem.
I tried now to get rid of the question.
1 remove the black rectangle of the homepage.
2. go in the master page and fill color of the browser set to black.
3 publish the file and it works perfectly.
I am also you send the file with my changes.
Kind regards
Vivek
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