INNER JOIN Display Issues

Hello,
I am haing troubles displaying the author_name using the
author_id in a testcase table and author table were author_id is
the primary key in the author table and the foreign key in the
author table. Here is my INNER JOIN SQL:
$query_rsListAuthor = "SELECT author_name FROM author INNER
JOIN testcase WHERE author.author_id = testcase.author_id";
$rsListAuthor = mysql_query($query_rsListAuthor, $QA) or
die(mysql_error());
$row_rsListAuthor = mysql_fetch_assoc($rsListAuthor);
$totalRows_rsListAuthor = mysql_num_rows($rsListAuthor);
I can't seem to display the author_name when I use this:
<?php echo $row_rsListAuthor['author_name'];
?></p>
Any thoughts as to what I am doing wrong?
Thanks,
Ron

How many matching records do you actually have between the 2
tables?
Are you seeing only 1 match on the web page or when you hit
test in the recordset dialog window? If it is the web page you may
need to slap a repeat region on it. Also make sure you have the
correct recordset selected in the repeat region from the drop down
menu. If you have multiple recordsets on the page because it always
defaults to the first one in the menu

Similar Messages

Inner Join Subquery data display

I have a query that uses a sub query on a INNER JOIN
SELECT SUM(A.qtyord), A.Item, A.Description, A.Class, B.Forecast,
CASE
WHEN B.Forcast = 0
THEN A.Item
ELSE
CASE
WHEN (SUM(A.ORDQ)/B.Forcase) > 0.20
THEN A.Item
ELSE ''
END
END AS SKU
FROM tableA A
INNER JOIN ((SELECT Item, ( SUM(BBAL) + SUM(RECV) + SUM(ADJU) - SUM(ALOC)) as onhand FROM tableD GROUP BY Item)) D ON A.Item = D.Item
INNER JOIN tableB B ON A.Item=B.Item
INNER JOIN tableC C ON B.Item=C.Item
GROUP BY A.Item, A.Description, A.Class, B.Forecast
ORDER BY A.Class DESC
How do I get the data from the sub query to display.

Hello,
Please check whether the following statement meet your requirment:
;With cte as
SELECT Item, ( SUM(BBAL) + SUM(RECV) + SUM(ADJU) - SUM(ALOC)) as onhand
FROM tableD GROUP BY Item)
SELECT SUM(A.qtyord), A.Item, A.Description, A.Class, B.Forecast, cte.onhand,
CASE
WHEN B.Forcast = 0
THEN A.Item
ELSE
CASE
WHEN (SUM(A.ORDQ)/B.Forcase) > 0.20
THEN A.Item
ELSE ''
END
END AS SKU
FROM tableA A
INNER JOIN cte ON A.Item = cte.Item
INNER JOIN tableB B ON A.Item=B.Item
INNER JOIN tableC C ON B.Item=C.Item
GROUP BY A.Item, A.Description, A.Class, B.Forecast
ORDER BY A.Class DESC
Regards,
Fanny Liu
If you have any feedback on our support, please click here.
Fanny Liu
TechNet Community Support

Issue with the inner join on EKKO and EKPO.

Dear All,
The report using this join takes a long time to execute.
Does this inner join have an issue?
Do i need to code this in a different way for lesser execution time?
Please give me your inputs.
SELECT
        a~ebeln
        b~ebelp
        a~bukrs
        a~bstyp
        a~bsart
        a~ekorg
        a~ekgrp
        a~kdatb
        a~kdate
        FROM ekko AS a JOIN ekpo AS b
        ON aebeln = bebeln
        INTO TABLE t_ekpo
        WHERE
        a~bukrs EQ p_bukrs
        AND a~bstyp EQ c_k
        AND a~bsart IN s_bsart
        AND a~ekorg IN s_ekorg
        AND a~ekgrp IN s_ekgrp
        AND a~kdate GE s_fdate-low
        AND a~loekz EQ space
        AND b~loekz EQ space.
Regards,
SuryaD.

Index EKKO~D consists top-down of BSTYP and BEDAT. BSTYP is already an EQ-condition in your selection, but not very selective (many rows with the same value). So including BEDAT should help in efficiently reducing the data that needs to be scanned for finding the relevant rows. However, just a new optional S_BEDAT select option that can be left empty by the user would not help, you must force a narrow selection (one month, one week, even one day? the less the better).
This is just a quick guess from my side, there might be other options that occur to you once you have analysed the available indexes. Sometimes alternative tables could be the solution, and even less sometimes introducing a new secondary index for a standard table might be the last option (takes up space and adds processing time to insert/update/delete operations).
Thomas

Perfomance issue : inner join on buffered db dable

I have done a inner join between 2 tables . one of the table is fully buffered.
i get a performance error
"(H) SELECT on buffered table in a JOIN"
kindly help

SELECT *
INTO CORRESPONDING FIELDS OF TABLE lt_obj_links <b>BYPASSING BUFFER</b>
FROM rpm_obj_link AS p
INNER JOIN
rpm_obl_obtyp AS f
ON f~object_type = p~object_type
WHERE p~project_guid = lv_item_guid
AND f~application = i_application
AND f~logsys = i_system.
and one more suggestion if you are using into corresponding why can't you select the requirefields rather than selecting all fields..
and specify <b>into table</b>

Issue when suming the field in Select query using inner join

Hi All,
SELECT A~OI_SHNUM
       A~FORWAGENT
       A~ROUTE
       A~SHTYP
       A~DTSHP_EACT
       A~/BIC/GTCLICENS
       A~/BIC/GTCADD04
       A~COMP_CODE
       SUM( C~GRS_WGT_DL )
       C~UNIT_OF_WT
INTO TABLE I_LAYONE
FROM ( ( /BIC/ANTCD000200 AS A
INNER JOIN /BIC/AGSSD000700 AS B ON BOI_SHNUM = AOI_SHNUM )
INNER JOIN /BIC/AGSSD000600 AS C ON CDELIV_NUMB = BDELIV_NUMB ).
I need to sum the field C~GRS_WGT_DL
While compiling it show the error given below
The field "C~UNIT_OF_WT" from the SELECT list is is missing in the
GROUP BY clause. is missing in the GROUP BY clause. is missing in the
GROUP BY clause. is missing in the GROUP BY clause. is missing in the
GROUP BY clause. is "C~UNIT_OF_W
with regards,
Thambe

Hi,
Try the following SQL statement. Hope it helps you.
SELECT A~OI_SHNUM
A~FORWAGENT
A~ROUTE
A~SHTYP
A~DTSHP_EACT
A~/BIC/GTCLICENS
A~/BIC/GTCADD04
A~COMP_CODE
SUM( C~GRS_WGT_DL )
C~UNIT_OF_WT
INTO TABLE I_LAYONE
FROM ( ( /BIC/ANTCD000200 AS A
INNER JOIN /BIC/AGSSD000700 AS B ON BOI_SHNUM = AOI_SHNUM )
INNER JOIN /BIC/AGSSD000600 AS C ON CDELIV_NUMB = BDELIV_NUMB )
GROUP BY
A~OI_SHNUM
A~FORWAGENT
A~ROUTE
A~SHTYP
A~DTSHP_EACT
A~/BIC/GTCLICENS
A~/BIC/GTCADD04
A~COMP_CODE.
Murthy.

Query Issue with Inner JOIN

I need to create the following SQL query in Toplinks, but cannot figure out how to do it. I just want to get all Contacts that have their InitialEventID set to some integer, or have a mapping in the ContactEvents table set to that integer. The mapping between Contacts and ContactEvents is @OnetoMany.
Select DISTINCT Contacts.* from Contacts JOIN ContactEvents ON (Contacts.ID = ContactEvents.ContactID) WHERE (ContactEvents.EventID = 34 OR Contacts.InitialEventID = 34);
I'm trying the following, but it obviouly doesn't work.
SELECT DISTINCT c FROM Contacts c INNER JOIN c.contactEventsCollection ce WHERE ce.eventID = 34
What should I do?

Other than the query missing the 'or' clause, why isn't the query working, and what SQL gets generated? You can turn TopLink logging to Fine or Finest to get the SQL logged. You might also want to use OUTER JOIN intead since I assume that Contacts with an InitialEventID=34 may or may not have any ContactEvents associated with it:
SELECT DISTINCT c FROM Contacts c OUTER JOIN c.contactEventsCollection ce WHERE ( (ce.eventID = 34) OR (c.InitialEventID = 34) )
Best Regards,
Chris

Inner join-select -primary key in table issue

Hi ,
Iam using FEBKO(header) and FEBEP(item) in inner join select .But the datas fetching by this selct in not correct.The analysis is the is no common primary fields in the both table.
Question 1-> Can i use inner join without common primary key in the both tables, weather it possible to make a select without common primary key in both table. Please kindly let me know.
Question 2-> What is the other possible way to give the selct for both table(better performance)
Regards,
Veera

Hi,
When you use INNER JOIN in this case, link your tables based on KUKEY and ESNUM fields, bcoz there can be many items under a single header. So this will work for you, even from the performance point of view.
Hope this is helpful to you. If you need further information, revert back.
Reward all the helpful answers.
Regards
Nagaraj T

Inner join issue

i was microsft sql 2000 user.
where is use join like this
select max(Date) from Table1 , table2
where table1.field = abc
and table2.field = table1.field.
but in abap it says santax error like comma with select???

HI
here i am giving inner join sample code for if we join 3 tables please check and correct for you question
Select single VbrkBukrs VbrkKunrg    Vbrk~Vbeln
                   VbrkFkdat VbrkBstnk_Vf Vbrk~Zterm
                   Tvzbt~Vtext
                   VbakVbeln VbakBstdk
                   LikpVbeln Likplfdat    Likp~Lfuhr
       into w_vbrk
       from vbrk
      inner join       Tvzbt on TvzbtZterm        = VbrkZterm      and
                                Tvzbt~Spras        = sy-langu
      Inner join       Vbfa as SalesLnk
                             on SalesLnk~vbeln     = pu_vbeln        and
                                SalesLnk~vbtyp_v   = c_order
            inner join Vbak on VbakVbeln           = SalesLnkVbelv
      Inner join       Vbfa as DeliveryLnk
                             on DeliveryLnk~vbeln   = pu_vbeln       and
                                DeliveryLnk~vbtyp_v = c_Delivery
            inner join Likp on LikpVbeln          = DeliveryLnkVbelv
      where vbrk~vbeln = pu_Vbeln.
Thanks and regards
Durga.K

Update statement with inner join issues

I have searched for the answer on this and not really 100%....so figured I would ask...be nice :)
what have I done wrong? Or am I just going about this the wrong way? I have looked at the oracle docs and I can't find an example showing me this. I do see where you SET values based on the select query results. I want to update the result of a query based on the join with static values....
UPDATE table.a
SET table.a_STATUS=9,table.a.INDEX = 'N'
WHERE (SELECT table.a INNER JOIN table.b ON (table.a.COMPANY = table.b.COMPANY) AND (table.a.PO_NUMBER =table.b.PO_NUMBER) AND (table.a.PO_RELEASE =table.b.PO_RELEASE) AND (table.a.PO_CODE =table.b.PO_CODE) AND (table.a_STATUS=1) AND (table.b.CLOSED_FL = 'Y'));

Hi,
Welcome to the forum!
user11360811 wrote:
I have searched for the answer on this and not really 100%....so figured I would ask...be nice :)
what have I done wrong? Or am I just going about this the wrong way? I have looked at the oracle docs and I can't find an example showing me this. I do see where you SET values based on the select query results. I want to update the result of a query based on the join with static values....
UPDATE table.aThat's updating a table called A in a schema called TABLE (which is not a good name for any user-named object). Are those really your table and schema names? Perhaps you meant to have an underscore instead of a dot:
UPDATE table_ais much, much more reasonable. It means the table name is TABLE_A (a perfectly good name) in the current schema.
SET table.a_STATUS=9,table.a.INDEX = 'N'
WHERE ( ...There's a syntax error. You can't just say
"WHERE (sub-query)"; it has to be
"WHERE EXISTS (sub-suery)" or
"WHERE (sub-query) = some_value" or
"WHERE some_value IN (sub_query)", or something similar. WHERE can never be used without some kind of comparison operator, such as EXISTS, = or IN.
SELECT table.a INNER JOIN table.b ON ...Here are some more syntax errors. The correct syntax for any query is
SELECT column_list
FROM table_name ...If table.a is your (first) table name, then you're missing the list of columns to SELECT, and the mandatory keyword FROM.
(table.a.COMPANY = table.b.COMPANY) AND (table.a.PO_NUMBER =table.b.PO_NUMBER) AND (table.a.PO_RELEASE =table.b.PO_RELEASE) AND (table.a.PO_CODE =table.b.PO_CODE) AND (table.a_STATUS=1) AND (table.b.CLOSED_FL = 'Y'));Some general advice about UPDATE:
If it's not obvious how to use UPDATE to do what you want, then there's a good chance that UPDATE is the wrong tool for the job. MERGE might be much simpler, and more efficient as well. This is especially likely if you need to join the table that's being updated to some other table.
Whenever you have a problem, please post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) from all tables involved. That way, the people who want to help you can re-create the problem and test their ideas.
Also post the results you want from that data, and an explanation of how you get those results from that data, with specific examples.
Simplify the problem as much as possible. Remove all tables and columns that play no role in this problem.
If you're asking about a DML statement, such as UPDATE, the CREATE TABLE and INSERT statements should re-create the tables as they are before the DML, and the results will be the contents of the changed table(s) when everything is finished.
Always say which version of Oracle you're using (for example, 11.2.0.2.0).
See the forum FAQ {message:id=9360002}
Edited by: Frank Kulash on Jan 17, 2013 4:58 PM

Inner Join of 3 tables is correct or not?

Hi Guys ,
             I have a requirement where i have to join 3 tables i dont know whether the inner Join which i wrote for 3 tables is correct or not.I am not getting any Syntax error but whether the logci below which i wrote gets all the records or not.
The Requirement is
"c.     Select the BOL Number entered in the screen and query the table LIKP with the BOL number in the field LIKP-BOLNR. Gather the list of ALL delivery documents (LIKP-VBELN) that is outputted.
d.     Query the list of the delivery documents obtained into the table VBFA in the field VBFA- VBELV. From the output that is displayed, select the Follow-On Document Field (VBFA-VBELN) for that item whose Subsequent Document Category (VBFA- VBTYP_N) is R and the Movement Type (VBFA- BWART) is 641. Get the Follow-On document number for each of the above Delivery Document number.
e.     Query the table EKBE with the Follow On document obtained above in the field Material Document (EKBE- BELNR). Perform this activity for each of the follow on document obtained above. Get the resultant Purchase Order (EKBE-EBELN) and Item Number (EKBE-EBELP) from the query. After querying will all the Follow-On Documents, get the unique list of PO number and Item Number.
The logic which i wrote is
                Begin of t_PoolSTO_out,
              BOLNR type LIKP-BOLNR,
              EBELN type EKBE-EBELN,
              EBELP type EKBE-EBELP,
              VBELN type LIKP-VBELN,
              VBELNV type VBFA-VBELN,
         End of t_PoolSTO_out.
      Data: i_PoolSTO type Standard table of t_PoolSTO_out.
Select
        a~BOLNR
        c~EBELN
        c~EBELP
        a~VBELN
        b~VBELN
        from LIKP as a
        Inner Join VBFA as b on aVBELN = bVBELV
        Inner Join EKBE as c on bVBELN = cBELNR
        into Table i_PoolSTO
        Where a~BOLNR in S_LBLNE and
              b~VBTYP_N = 'R' and
              b~BWART = '641'.
          My doubt is whether the logic works or not i Mean does i getall the rrecords based on the requirement.?
                  If not please tell any alternative logic?
Thanks,
Gopi Anne.

Hi Gopi,
Your code is Good.
But try to avoid Inner join with more number of Tables ...because this is a performance issue..
try to use..
select (primary key fields mainly,other fields) from LIKP into itab where bolnr in p_bolnr(paramater).
next try to use for all entries option..
select (primary key fields mainly,other fields) from VBFA for all entries in itab where (give the condition)....
simillarly do for the other select ....ok this will try to reduce the performance issue....
<b><REMOVED BY MODERATOR></b>
Message was edited by:
        Alvaro Tejada Galindo

Very Slow Query with CTE inner join

I have 2 tables (heavily simplified here to show relevant columns):
CREATE TABLE tblCharge
(ChargeID int NOT NULL,
ParentChargeID int NULL,
ChargeName varchar(200) NULL)
CREATE TABLE tblChargeShare
(ChargeShareID int NOT NULL,
ChargeID int NOT NULL,
TotalAmount money NOT NULL,
TaxAmount money NULL,
DiscountAmount money NULL,
CustomerID int NOT NULL,
ChargeShareStatusID int NOT NULL)
I have a very basic View to Join them:
CREATE VIEW vwBASEChargeShareRelation as
Select c.ChargeID, ParentChargeID, s.CustomerID, s.TotalAmount, isnull(s.TaxAmount, 0) as TaxAmount, isnull(s.DiscountAmount, 0) as DiscountAmount
from tblCharge c inner join tblChargeShare s
on c.ChargeID = s.ChargeID Where s.ChargeShareStatusID < 3
GO
I then have a view containing a CTE to get the children of the Parent Charge:
ALTER VIEW [vwChargeShareSubCharges] AS
WITH RCTE AS
SELECT ParentChargeId, ChargeID, 1 AS Lvl, ISNULL(TotalAmount, 0) as TotalAmount, ISNULL(TaxAmount, 0) as TaxAmount,
ISNULL(DiscountAmount, 0) as DiscountAmount, CustomerID, ChargeID as MasterChargeID
FROM vwBASEChargeShareRelation Where ParentChargeID is NULL
UNION ALL
SELECT rh.ParentChargeID, rh.ChargeID, Lvl+1 AS Lvl, ISNULL(rh.TotalAmount, 0), ISNULL(rh.TaxAmount, 0), ISNULL(rh.DiscountAmount, 0) , rh.CustomerID
, rc.MasterChargeID
FROM vwBASEChargeShareRelation rh
INNER JOIN RCTE rc ON rh.PArentChargeID = rc.ChargeID and rh.CustomerID = rc.CustomerID
Select MasterChargeID as ChargeID, CustomerID, Sum(TotalAmount) as TotalCharged, Sum(TaxAmount) as TotalTax, Sum(DiscountAmount) as TotalDiscount
from RCTE
Group by MasterChargeID, CustomerID
GO
So far so good, I can query this view and get the total cost for a line item including all children.
The problem occurs when I join this table. The query:
Select t.* from vwChargeShareSubCharges t
inner join
tblChargeShare s
on t.CustomerID = s.CustomerID
and t.MasterChargeID = s.ChargeID
Where s.ChargeID = 1291094
Takes around 30 ms to return a result (tblCharge and Charge Share have around 3.5 million records).
But the query:
Select t.* from vwChargeShareSubCharges t
inner join
tblChargeShare s
on t.CustomerID = s.CustomerID
and t.MasterChargeID = s.ChargeID
Where InvoiceID = 1045854
Takes around 2 minutes to return a result - even though the only charge with that InvoiceID is the same charge as the one used in the previous query.
The same thing occurs if I do the join in the same query that the CTE is defined in.
I ran the execution plan for each query. The first (fast) query looks like this:
The second(slow) query looks like this:
I am at a loss, and my skills at decoding execution plans to resolve this are lacking.
I have separate indexes on tblCharge.ChargeID, tblCharge.ParentChargeID, tblChargeShare.ChargeID, tblChargeShare.InvoiceID, tblChargeShare.ChargeShareStatusID
Any ideas? Tested on SQL 2008R2 and SQL 2012

>> The database is linked [sic] to an established app and the column and table names can't be changed. <<
Link? That is a term from pointer chains and network databases, not SQL. I will guess that means the app came back in the old pre-RDBMS days and you are screwed.
>> I am not too worried about the money field [sic], this is used for money and money based calculations so the precision and rounding are acceptable at this level. <<
Field is a COBOL concept; columns are totally different. MONEY is how Sybase mimics the PICTURE clause that puts currency signs, commas, period, etc in a COBOL money field.
Using more than one operation (multiplication or division) on money columns will produce severe rounding errors. A simple way to visualize money arithmetic is to place a ROUND() function calls after
every operation. For example,
Amount = (Portion / total_amt) * gross_amt
can be rewritten using money arithmetic as:
Amount = ROUND(ROUND(Portion/total_amt, 4) *
gross_amt, 4)
Rounding to four decimal places might not seem an
issue, until the numbers you are using are greater
than 10,000.
BEGIN
DECLARE @gross_amt MONEY,
@total_amt MONEY,
@my_part MONEY,
@money_result MONEY,
@float_result FLOAT,
@all_floats FLOAT;
SET @gross_amt = 55294.72;
SET @total_amt = 7328.75;
SET @my_part = 1793.33;
SET @money_result = (@my_part / @total_amt) *
@gross_amt;
SET @float_result = (@my_part / @total_amt) *
@gross_amt;
SET @Retult3 = (CAST(@my_part AS FLOAT)
/ CAST( @total_amt AS FLOAT))
* CAST(FLOAT, @gross_amt AS FLOAT);
SELECT @money_result, @float_result, @all_floats;
END;
@money_result = 13525.09 -- incorrect
@float_result = 13525.0885 -- incorrect
@all_floats = 13530.5038673171 -- correct, with a -
5.42 error
>> The keys are ChargeID(int, identity) and ChargeShareID(int, identity). <<
Sorry, but IDENTITY is not relational and cannot be a key by definition. But it sure works just like a record number in your old COBOL file system.
>> .. these need to be int so that they are assigned by the database and unique. <<
No, the data type of a key is not determined by physical storage, but by logical design. IDENTITY is the number of a parking space in a garage; a VIN is how you identify the automobile.
>> What would you recommend I use as keys? <<
I do not know. I have no specs and without that, I cannot pull a Kabbalah number from the hardware. Your magic numbers can identify Squids, Automobile or Lady Gaga! I would ask the accounting department how they identify a charge.
>> Charge_Share_Status_ID links [sic] to another table which contains the name, formatting [sic] and other information [sic] or a charge share's status, so it is both an Id and a status. <<
More pointer chains! Formatting? Unh? In RDBMS, we use a tiered architecture. That means display formatting is in a presentation layer. A properly created table has cohesion – it does one and only one data element. A status is a state of being that applies
to an entity over a period time (think employment, marriage, etc. status if that is too abstract).
An identifier is based on the Law of Identity from formal logic “To be is to be something in particular” or “A is A” informally. There is no entity here! The Charge_Share_Status table should have the encoded values for a status and perhaps a description if
they are unclear. If the list of values is clear, short and static, then use a CHECK() constraint.
On a scale from 1 to 10, what color is your favorite letter of the alphabet? Yes, this is literally that silly and wrong.
>> I understand what a CTE is; is there a better way to sum all children for a parent hierarchy? <<
There are many ways to represent a tree or hierarchy in SQL. This is called an adjacency list model and it looks like this:
CREATE TABLE OrgChart
(emp_name CHAR(10) NOT NULL PRIMARY KEY,
boss_emp_name CHAR(10) REFERENCES OrgChart(emp_name),
salary_amt DECIMAL(6,2) DEFAULT 100.00 NOT NULL,
<< horrible cycle constraints >>);
OrgChart
emp_name boss_emp_name salary_amt
==============================
'Albert' NULL 1000.00
'Bert' 'Albert' 900.00
'Chuck' 'Albert' 900.00
'Donna' 'Chuck' 800.00
'Eddie' 'Chuck' 700.00
'Fred' 'Chuck' 600.00
This approach will wind up with really ugly code -- CTEs hiding recursive procedures, horrible cycle prevention code, etc. The root of your problem is not knowing that rows are not records, that SQL uses sets and trying to fake pointer chains with some
vague, magical non-relational "id".
This matches the way we did it in old file systems with pointer chains. Non-RDBMS programmers are comfortable with it because it looks familiar -- it looks like records and not rows.
Another way of representing trees is to show them as nested sets.
Since SQL is a set oriented language, this is a better model than the usual adjacency list approach you see in most text books. Let us define a simple OrgChart table like this.
CREATE TABLE OrgChart
(emp_name CHAR(10) NOT NULL PRIMARY KEY,
lft INTEGER NOT NULL UNIQUE CHECK (lft > 0),
rgt INTEGER NOT NULL UNIQUE CHECK (rgt > 1),
CONSTRAINT order_okay CHECK (lft < rgt));
OrgChart
emp_name lft rgt
======================
'Albert' 1 12
'Bert' 2 3
'Chuck' 4 11
'Donna' 5 6
'Eddie' 7 8
'Fred' 9 10
The (lft, rgt) pairs are like tags in a mark-up language, or parens in algebra, BEGIN-END blocks in Algol-family programming languages, etc. -- they bracket a sub-set. This is a set-oriented approach to trees in a set-oriented language.
The organizational chart would look like this as a directed graph:
Albert (1, 12)
Bert (2, 3) Chuck (4, 11)
/ | \
/ | \
/ | \
/ | \
Donna (5, 6) Eddie (7, 8) Fred (9, 10)
The adjacency list table is denormalized in several ways. We are modeling both the Personnel and the Organizational chart in one table. But for the sake of saving space, pretend that the names are job titles and that we have another table which describes the
Personnel that hold those positions.
Another problem with the adjacency list model is that the boss_emp_name and employee columns are the same kind of thing (i.e. identifiers of personnel), and therefore should be shown in only one column in a normalized table. To prove that this is not
normalized, assume that "Chuck" changes his name to "Charles"; you have to change his name in both columns and several places. The defining characteristic of a normalized table is that you have one fact, one place, one time.
The final problem is that the adjacency list model does not model subordination. Authority flows downhill in a hierarchy, but If I fire Chuck, I disconnect all of his subordinates from Albert. There are situations (i.e. water pipes) where this is true, but
that is not the expected situation in this case.
To show a tree as nested sets, replace the nodes with ovals, and then nest subordinate ovals inside each other. The root will be the largest oval and will contain every other node. The leaf nodes will be the innermost ovals with nothing else inside them
and the nesting will show the hierarchical relationship. The (lft, rgt) columns (I cannot use the reserved words LEFT and RIGHT in SQL) are what show the nesting. This is like XML, HTML or parentheses.
At this point, the boss_emp_name column is both redundant and denormalized, so it can be dropped. Also, note that the tree structure can be kept in one table and all the information about a node can be put in a second table and they can be joined on employee
number for queries.
To convert the graph into a nested sets model think of a little worm crawling along the tree. The worm starts at the top, the root, makes a complete trip around the tree. When he comes to a node, he puts a number in the cell on the side that he is visiting
and increments his counter. Each node will get two numbers, one of the right side and one for the left. Computer Science majors will recognize this as a modified preorder tree traversal algorithm. Finally, drop the unneeded OrgChart.boss_emp_name column
which used to represent the edges of a graph.
This has some predictable results that we can use for building queries. The root is always (left = 1, right = 2 * (SELECT COUNT(*) FROM TreeTable)); leaf nodes always have (left + 1 = right); subtrees are defined by the BETWEEN predicate; etc. Here are
two common queries which can be used to build others:
1. An employee and all their Supervisors, no matter how deep the tree.
SELECT O2.*
FROM OrgChart AS O1, OrgChart AS O2
WHERE O1.lft BETWEEN O2.lft AND O2.rgt
AND O1.emp_name = :in_emp_name;
2. The employee and all their subordinates. There is a nice symmetry here.
SELECT O1.*
FROM OrgChart AS O1, OrgChart AS O2
WHERE O1.lft BETWEEN O2.lft AND O2.rgt
AND O2.emp_name = :in_emp_name;
3. Add a GROUP BY and aggregate functions to these basic queries and you have hierarchical reports. For example, the total salaries which each employee controls:
SELECT O2.emp_name, SUM(S1.salary_amt)
FROM OrgChart AS O1, OrgChart AS O2,
Salaries AS S1
WHERE O1.lft BETWEEN O2.lft AND O2.rgt
AND S1.emp_name = O2.emp_name
GROUP BY O2.emp_name;
4. To find the level and the size of the subtree rooted at each emp_name, so you can print the tree as an indented listing.
SELECT O1.emp_name,
SUM(CASE WHEN O2.lft BETWEEN O1.lft AND O1.rgt
THEN O2.sale_amt ELSE 0.00 END) AS sale_amt_tot,
SUM(CASE WHEN O2.lft BETWEEN O1.lft AND O1.rgt
THEN 1 ELSE 0 END) AS subtree_size,
SUM(CASE WHEN O1.lft BETWEEN O2.lft AND O2.rgt
THEN 1 ELSE 0 END) AS lvl
FROM OrgChart AS O1, OrgChart AS O2
GROUP BY O1.emp_name;
5. The nested set model has an implied ordering of siblings which the adjacency list model does not. To insert a new node, G1, under part G. We can insert one node at a time like this:
BEGIN ATOMIC
DECLARE rightmost_spread INTEGER;
SET rightmost_spread
= (SELECT rgt
FROM Frammis
WHERE part = 'G');
UPDATE Frammis
SET lft = CASE WHEN lft > rightmost_spread
THEN lft + 2
ELSE lft END,
rgt = CASE WHEN rgt >= rightmost_spread
THEN rgt + 2
ELSE rgt END
WHERE rgt >= rightmost_spread;
INSERT INTO Frammis (part, lft, rgt)
VALUES ('G1', rightmost_spread, (rightmost_spread + 1));
COMMIT WORK;
END;
The idea is to spread the (lft, rgt) numbers after the youngest child of the parent, G in this case, over by two to make room for the new addition, G1. This procedure will add the new node to the rightmost child position, which helps to preserve the idea
of an age order among the siblings.
6. To convert a nested sets model into an adjacency list model:
SELECT B.emp_name AS boss_emp_name, E.emp_name
FROM OrgChart AS E
LEFT OUTER JOIN
OrgChart AS B
ON B.lft
= (SELECT MAX(lft)
FROM OrgChart AS S
WHERE E.lft > S.lft
AND E.lft < S.rgt);
7. To find the immediate parent of a node:
SELECT MAX(P2.lft), MIN(P2.rgt)
FROM Personnel AS P1, Personnel AS P2
WHERE P1.lft BETWEEN P2.lft AND P2.rgt
AND P1.emp_name = @my_emp_name;
I have a book on TREES & HIERARCHIES IN SQL which you can get at Amazon.com right now. It has a lot of other programming idioms for nested sets, like levels, structural comparisons, re-arrangement procedures, etc.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

CSOM (Javascript) Inner join CAML query on 'User Information List'

I need to pull site user details like (email, display name, phone) from 'User information list' using a 'inner join' on a different list 'SiteOwners' where 'Contact' is a person or group field.
The result object is not returning the details from 'User Information List' though it returns details from 'SiteOwners' list
<script src="/_layouts/15/SP.runtime.js" type="text/javascript"></script>
<script src="/_layouts/15/SP.js" type="text/javascript"></script>
<script type='text/javascript'>
'use strict';
//$(document).ready(function() {
function abc() {
var context = SP.ClientContext.get_current();
var web =context.get_web();
var stownrlist = web.get_lists().getByTitle('SiteOwners');
var camlqry = new SP.CamlQuery();
camlqry.set_viewXml = "<View>" +
"<Query></Query>" +
"<ViewFields>" +
"<FieldRef Name='Title'/>" +
"<FieldRef Name='Contact'/>" +
"<FieldRef Name='UserName'/>" +
"<FieldRef Name='UserEMail'/>" +
"<FieldRef Name='UserMobilePhone'/>" +
"</ViewFields>" +
"<ProjectedFields>" +
"<Field Name='UserName' Type='Lookup' List='User Information List' ShowField='Name' />" +
"<Field Name='UserEMail' Type='Lookup' List='User Information List' ShowField='EMail' />" +
"<Field Name='UserMobilePhone' Type='Lookup' List='User Information List' ShowField='MobilePhone' />" +
"</ProjectedFields>" +
"<Joins>" +
"<Join Type='INNER' ListAlias='User Information List'>" +
"<Eq>" +
"<FieldRef Name='Contact' RefType='Id'/>" +
"<FieldRef List='User Information List' Name='ID'/>" +
"</Eq>" +
"</Join>" +
"</Joins>" +
"</View>";
debugger;
var stownritems = stownrlist.getItems(camlqry);
context.load(stownritems);//, 'Include(Title,Contact,UserName,UserEMail,UserMobilePhone)');
context.executeQueryAsync(
Function.createDelegate(this, function () {
debugger;
var stownenm = stownritems.getEnumerator();
while (stownenm.moveNext()) {
var userid, loginname,email,name,mobilephone;
if (stownenm.get_current().get_item('Contact') != null) {
userid = stownenm.get_current().get_item('Contact').get_lookupId();
loginname = stownenm.get_current().get_item('Contact').get_lookupValue();
email = stownenm.get_current().get_item('ows_UserEMail');
name = stownenm.get_current().get_item('UserName');
mobilephone = stownenm.get_current().get_item('UserMobilePhone');
}), function() {alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());});
</script>
Any suggestions / help please.
Sai

I identified the issue
"camlqry.set_viewXml" is a method (camlqry.set_viewXml()) not a property (as apposed to C#).
The above should be like "camlqry.set_viewXml(querystring)" instead of "camlqry.set_viewXml =qrystring".
Sai

Windows 7 or Windows Server 2008 R2 domain join displays error "Changing the Primary Domain DNS name of this computer to "" failed...."

Hi,
Windows 7 or Windows Server 2008 R2 domain join displays error "Changing the Primary Domain DNS name of this computer to "" failed...."
DC:windows Server 2008 R2
Domain functional level:Windows Server 2003
When Winxp join domain, have no this error message.
I checked http://support.microsoft.com/kb/2018583?wa=wsignin1.0 does't work.
There have 3 suggestion in this article:
1.The "Disable NetBIOS over TCP/IP" checkbox has been disabled in the IPv4 properties of the computer being joined.
Doesnt's work.
2.Connectivity over UDP port 137 is blocked between client and the helper DC servicing the join operation in the target domain.
On my DC, I run netstat -an, reslut as below:
UDP 192.168.20.3:137 *:*
3.The TCP/IPv4 protocol has been disabled so that the client being joined or the DC in the destination domain targeted by the LDAP BIND is running TCP/IPv6 only.
We are not using IPV6.
This server recently updated from Windows Server 2003 to Windows Server 2008 R2. Before upgrade, when Win7 and Win2008 join this domain, also have the same error message.
Please help to check this issue.
Thank you very much.
BR
Guo YingHui

Hi Guo Ying,
I have faced this critical error which makes over-writes the host names in the domain when you join.
For example: Already you had a host name called as PC.domain.com in the domain.com Domain.
When you try to add the another host name called as PC in the domain.com Domain, it doesn't give you the duplicate name error on the network it does over-write the existing host name called as PC.domain.com & it will add the new host name into the domain.
Host name which got over-written will get removed from the domain. I faced this issue in my project. My DPM host name got removed from the Domain & new host name got joined into the domain which halted my backups for one day.
Final Resolution is as follows:
You need to start the dns console on the DC & drop down the domain name.
Select the _msdcs when you click on _msdcs it will show the Name Server's list on the right hand side.
You need to add the Domain Naming Master under the _msdcs or add all the domain controllers which you had.
After you add the Name server's try joining the PC OR Laptop to the domain which is successfully joins it.
Regards
Anand S
Thanks & Regards Anand Sunka MCSA+CCNA+MCTS

Convert SSRS dropdown MDX query to INNER JOIN w/ NONEMPTY? Having hard time with this.

I'm having an incredibly hard time with this, mostly because I'm very new with MDX.
I created a simple report (with AdventureWorksDW) whose datasource is an SSAS cube. I select a datekey from the dropdown menu, and the report displays [Measures].[Order Quantity] for that day.
The problem is that the dropdown displays every single value from the dimdate dimension. DimDate goes from 20050101 to 20201231, so the dropdown is very long.
How can I alter the SSRS-generated MDX so that it does an INNER JOIN with Fact table and only the dates shown in the dropdown are the ones where there's data in the Fact table?
Currently, the fact table only has 2 days of data (20141015, 20141016), which means that the dropdown should only display those two dates. I'm including the generated code MDX that populates the dropdown menu:
WITH MEMBER [Measures].[ParameterCaption] AS
[Dim Date].[Date Key].CURRENTMEMBER.MEMBER_CAPTION
MEMBER [Measures].[ParameterValue] AS
[Dim Date].[Date Key].CURRENTMEMBER.UNIQUENAME
MEMBER [Measures].[ParameterLevel] AS
[Dim Date].[Date Key].CURRENTMEMBER.LEVEL.ORDINAL
SELECT {[Measures].[ParameterCaption],
[Measures].[ParameterValue], [Measures].[ParameterLevel]}
ON COLUMNS , [Dim Date].[Date Key].ALLMEMBERS ON ROWS
FROM [Adventure Works cube]
Any help is appreciated.
VM

Hi vmhatup,
you can get rid of blank data using nonempty function and get rid of negative values using filter function nonempty should be inside of filter so it applies first, otherwise it is too slow.
Your statement could look like this
WITH MEMBER [Measures].[ParameterCaption] AS
[Dim Date].[Date Key].CURRENTMEMBER.MEMBER_CAPTION
MEMBER [Measures].[ParameterValue] AS
[Dim Date].[Date Key].CURRENTMEMBER.UNIQUENAME
MEMBER [Measures].[ParameterLevel] AS
[Dim Date].[Date Key].CURRENTMEMBER.LEVEL.ORDINAL
SELECT {[Measures].[ParameterCaption],
[Measures].[ParameterValue], [Measures].[ParameterLevel]}
ON COLUMNS
, filter(
nonempty([Dim Date].[Date Key].[Date Key],measures.measureName)
,measure.measurename >0
ON ROWS
FROM [Adventure Works cube]
Jiri Neoral

Problem with a query inner-join

Hello;
I'm trying to innerjoin these 2 tables in my query for a page that will allow you to add / edit records. Right now, it's telling me I have a data mismatch. I don't see where I went wrong. Can someone help me out?
This is my code:
<cfparam name="url.CategoryID" type="integer" default="0">
<cfparam name="subID" type="integer" default="#url.CategoryID#">
<cfparam name="subName" default="">
<cfparam name="CategoryID" default="">
<cfparam name="Name" default="">
<cfif url.CategoryID GT 0>
<cfquery name="categRec" dataSource="#APPLICATION.dataSource#">
SELECT merchSubCat.subName, merchSubCat.subID, Categories.CategoryID, Categories.Name
FROM merchSubCat
INNER JOIN Categories
    ON merchSubCat.CategoryID = Categories.CategoryID
WHERE merchSubCat.subID = <cfqueryparam value="#url.CategoryID#" cfsqltype="cf_sql_integer">
</cfquery>

<cfif categRec.RecordCount EQ 1>
<cfset CategoryID = categRec.subID>
<cfset subName = categRec.subName>
<cfset CategoryID = categRec.CategoryID>
<cfset Name = categRec.Name>
</cfif>
</cfif>
this is my error:
Error Executing Database Query.
[Macromedia][SequeLink JDBC Driver][ODBC Socket][Microsoft][ODBC Microsoft Access Driver] Type mismatch in expression.
The error occurred in C:\Websites\187914kg3\admin\cms\merchant\merchSub-edit.cfm: line 16
14 : INNER JOIN Categories
15 :     ON merchSubCat.CategoryID = Categories.CategoryID
16 : WHERE merchSubCat.subID = <cfqueryparam value="#url.CategoryID#" cfsqltype="cf_sql_integer">
17 : </cfquery>
18 :
I don't see what I did wrong, can another pair of eyes see where I missed something?
Thank you

I changed it to number, and it works now.
I have one other problem.. I'm trying to use a drop down menu in this form to edit a record. I want the drop down to show what is being used in the database when you go to edit a record. It runs on one query, to populate the select, but it pulls info from another and this isn't working. Actually, it's the innerjoin I just made.. can you help me?

<cfquery name="catList" datasource="#APPLICATION.dataSource#">
SELECT DISTINCT merchCategory.CategoryID, merchCategory.CatName AS cat_name
FROM merchCategory
ORDER BY CatName
</cfquery>
<cfselect enabled="No" name="CategoryID" size="1" class="smallText" multiple="no" query="catList" value="CategoryID" display="cat_name" queryPosition="below" selected="#categRec.Name#">
                  <option value="">--Select a Category--</option>
              </cfselect>
As you see, in the selected part of the tag, I'm trying to pull info from the other query we just fixed. I know this is wrong, how do I do this?

INNER JOIN Display Issues

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