Need help with a self-join query
HelloI have A table with the following data
OID parent_oid
4 of 10
4 2
2 2
12 6
6 6
parent_oid is the parent of the oid. I would like a query that displays the final parent of the oid. The result must indicate the following
Final parent OID
2 of 10
4 2
2 2
12 6
6 6
I use Oracle 10 g. I am familiar with free joins, but that alone will not do the job. Thank you!
Hello
arizona9952 wrote:
... I am familiar with free joins, but that alone will not do the job.
You are absolutely right!
A self-join 2-way would work for lines have no parent, or lines which are directly related to their final ancestor (such as the oid = 4), but not for what anyone further.
A 3-way self-join would work to a level more away from the last row, but no more. That would be enough with the small set of sample data that you posted, but it won't work if you have added a new rank parent_id = 10.
An N - way self-join would work for up to N + 1 levels, but no more.
You need something that can go to any number of levels, such as CONNECT BY:
SELECT CONNECT_BY_ROOT oid AS oid
, parent_oid AS final_parent
FROM a
WHERE CONNECT_BY_ISLEAF = 1
CONNECT BY oid = PRIOR parent_oid
AND oid != parent_oid
;
Published by: Frank Kulash, February 22, 2010 19:09
On sober reflection, I think that a request from top down, as one below, would be more effective than a motion up and down, like the one above:
SELECT oid
, CONNECT_BY_ROOT parent_oid AS final_parent
FROM a
START WITH parent_oid = oid
CONNECT BY parent_oid = PRIOR oid
AND oid != PRIOR oid
;
Tags: Database
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Hi all -
I need to ask for help with this query:
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Select u.table_name, u.column_name, c.constraint_name
Of user_tab_col_test u
Outer join all_cons_columns_test c left
On (u.table_name = c.table_name
AND U.COLUMN_NAME = C.COLUMN_NAME
AND C.CONSTRAINT_NAME IN ('main'))
order of U.table_name, U.COLUMN_NAME;
TABLE_NAME COLUMN_NAME, CONSTRAINT_NAME
------------------ --------------------- ----------------------------
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Table1 Column2
Table 1 Column3
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(2) is my proper request and this is the best way to return my desired results? For example, I want all of the columns of user_tab_col_test and I want to only display the constraint_name from all_cons_columns_test argument if the argument constraint_name = 'primary '.
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Published by: user703358 on January 11, 2013 20:57
Published by: user703358 on January 11, 2013 21:48Hi, John,.
user703358 wrote:
Hi all -I need to ask for help with this query:
Create table user_tab_col_test (varchar2 (30) from table_name, column_name varchar2 (30), data_type varchar2 (30));
Insert into user_tab_col_test (table_name, column_name, data_type) values ('table1', 'column1', 'varchar2')
Insert into user_tab_col_test (table_name, column_name, data_type) values ('Column2', 'table1', 'varchar2')...Thanks for posting the CREATE TABLE and INSERT.
It is more useful if you post the code that can be run without modification. You did not semicolons after INSERTION instructions.Three questions:
(1) I don't want to return results where table_name = "table1". I can't get this to work.What have you tried? Post your best attempt.
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Basically, this application is very well.
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Do you mean "" * add * one-third * column * to all_cons_columns_test '? "
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Version: 11.1.0.7
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I have the following data samples:
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The query you posted does not require a query of Tahina, so you can say:
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This requires that there is that one node root. ORDER OF brothers and SŒURS means just that: children of a common parent will appear in the order, but the root nodes, which have no parents, may not be in order.
Here's what I meant by using START WITH place WHERE:
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Published by: Frank Kulash, December 9, 2010 14:39
Added version with the START WITH clause -
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Hi friends,
PFB the query and the result. Please ignore where the conditions, they are only about 50% accurate.
SELECT XMLELEMENT ( 'majorLine' XMLATTRIBUTES ( ) d. ) line_id AS "Row Id" ),
xmlforest (d. ) ordered_item as "itemName" ,
d . ordered_quantity as 'quantity' ),
(SELECT XMLAGG (XMLELEMENT ()"Service" XMLATTRIBUTES (e. ))) line_id AS Service ),
( ) SELECT XMLAGG (XMLELEMENT ( "ServiceName" ))
XMLATTRIBUTES (of. ) ordered_item AS "ItemName" ),
xmlforest (of. ) ordered_item as "itemName" ,
de . ordered_quantity as 'quantity' )))
DE oe_order_lines_all of
OÙ de . line_id = e. line_id et de . link_to_line_id is null )))
DE oe_order_lines_all e
OÙ e. line_id = 143424538 ),
(SELECT XMLAGG (XMLELEMENT ()"minorLine" XMLATTRIBUTES (e. ))) line_id AS minorLine ),
( ) SELECT XMLAGG (XMLELEMENT ( "itemName" ))
XMLATTRIBUTES (of. ) ordered_item AS "ItemName" ),
xmlforest (of. ) ordered_item as "itemName" ,
de . ordered_quantity as 'quantity' )))
DE oe_order_lines_all of
OÙ de . line_id = e. line_id )))
DE oe_order_lines_all e
OÙ ( e. line_id = 143424538 ), (SELECT XMLAGG (XMLELEMENT ()"service" XMLATTRIBUTES (e. ))) line_id AS Service ),
( ) SELECT XMLAGG (XMLELEMENT ( "serviceName" ))
XMLATTRIBUTES (of. ) ordered_item AS "itemName" ),
xmlforest (of. ) ordered_item as "itemName" ,
de . ordered_quantity as 'quantity' )))
DE oe_order_lines_all of
OÙ de . line_id = e. line_id et de . link_to_line_id is null )))
DE oe_order_lines_all e
OÙ ( e. line_id = 143424538 ( )
( ) YOU "dept_list"
DE oe_order_lines_all d où d . line_id = 143424538 ;
The output is:
< majorLine Line Id='143424538'>
< itemName > 15454-TCC3-K9 = </ itemName >
< quantity > 10 < / quantity >
< Service SERVICE='143424538'>
< ServiceName ItemName'15454-TCC3-K9 ='=>
< itemName > 15454-TCC3-K9 = </ itemName >
< quantity > 10 < / quantity >
</ ServiceName >
</ Service >
< minorLine MINORLINE='143424538'>
< itemName ItemName'15454-TCC3-K9 ='=>
< itemName > 15454-TCC3-K9 = </ itemName >
< quantity > 10 < / quantity >
</ itemName >
</ minorLine >
< service SERVICE='143424538'>
< serviceName itemName'15454-TCC3-K9 ='=>
< itemName > 15454-TCC3-K9 = </ itemName >
< quantity > 10 < / quantity >
</ serviceName >
</ service >
</ majorLine >
But the production expected as below
< majorLine Line Id="143">
< itemName > 15454-K = </ itemName >
< quantity > 10 < / quantity >
< Service >
< lineId >143424538 < / lineId >
< itemName > 15454-9 = </ itemName >
< quantity > 10 < / quantity >
</ Service >
< minorLine MINORLINE='143424538'>
< itemName > 1549 = </ itemName >
< quantity > 10 < / quantity >
</ minorLine >
< service >
< lineId >143424538 < / lineId >
< itemName > 159= </ itemName >
< quantity > 10 < / quantity >
</ service >
</ majorLine >
So the exact structure of XML output will be like that. In the example above, I didn't add the service of minors and several minor lines.
I need to change the code above in the format below.
< majorLine = "123456" LineID >-> there will be only one line of Major
< itemNamme > MajorLineItem < / itemName >
< quantity > 2 < / quantity >
< service > -> there may be more than one service or no service of this major axis
< > < lineId > 123456 lineId
< itemNamme > serviceOfmajor < / itemName >
< quantity > 2 < / quantity >
< / service >
< minorLine LineID '456789' = > -> there are several minor this major line lines
< itemNamme > first_MinorlineItem < / itemName >
< quantity > 7 < / quantity >
< service >-> there may be more than one or NONE of the lines of service for one minor line
< > < lineId > 11212 lineId
< itemNamme > First_serivceOfMinor < / itemName >
< quantity > 2 < / quantity >
< / service >
< service >-> it may be more than one service lines for a line of minor
< > 1347657 < lineId > lineId
< itemNamme > second_serivceOfMinor < / itemName >
< quantity > 2 < / quantity >
< / service >
< minorLine LineID = "477838" > -> there are several minor this major line lines
< itemNamme > second_MinorlineItem < / itemName >
< quantity > 3 < / quantity >
< / majorLine >
Please help me to re - write the code. I used the approach of DOM node, its very long, I'm trying to replace it. Help, please. Let me know if you have any questions.
Thank you and best regards,
Arun Thomas T
Not a Constructive Question.
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I have absolutely no idea where to even start looking for something to improve.SQL> show parameter optimizer NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ optimizer_dynamic_sampling integer 2 optimizer_features_enable string 10.2.0.1 optimizer_index_caching integer 0 optimizer_index_cost_adj integer 100 optimizer_mode string ALL_ROWS optimizer_secure_view_merging boolean TRUE SQL> SQL> show parameter db_file_multi NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_file_multiblock_read_count integer 128 SQL> SQL> show parameter db_block_size NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_block_size integer 8192 SQL> SQL> show parameter cursor_sharing NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ cursor_sharing string EXACT SQL> SQL> column sname format a20 SQL> column pname format a20 SQL> column pval2 format a20 SQL> SQL> select 2 sname 3 , pname 4 , pval1 5 , pval2 6 from 7 sys.aux_stats$; SNAME PNAME PVAL1 PVAL2 -------------------- -------------------- ----------- -------------------- SYSSTATS_INFO STATUS COMPLETED SYSSTATS_INFO DSTART 02-07-2006 22:54 SYSSTATS_INFO DSTOP 02-07-2006 22:54 SYSSTATS_INFO FLAGS 1.000 SYSSTATS_MAIN CPUSPEEDNW 500.790 SYSSTATS_MAIN IOSEEKTIM 10.000 SYSSTATS_MAIN IOTFRSPEED 4,096.000 SYSSTATS_MAIN SREADTIM SYSSTATS_MAIN MREADTIM SYSSTATS_MAIN CPUSPEED SYSSTATS_MAIN MBRC SYSSTATS_MAIN MAXTHR SYSSTATS_MAIN SLAVETHR 13 rows selected. Elapsed: 00:00:00.03 SQL> explain plan into plan_table for 2 SELECT CONNECT_BY_ROOT b.parent_part AS part_nbr 3 , b.parent_part 4 , b.child_part 5 , eval_number ('1' || SYS_CONNECT_BY_PATH (b.qty_per, '*')) AS qty 6 FROM ( 7 SELECT doc_nbr AS parent_part 8 , comp_part AS child_part 9 , line_nbr 10 , qty_per 11 FROM bill@DB8I 12 WHERE lst_code IN ('G','M') 13 AND begn_eff <= SYSDATE 14 AND end_eff > SYSDATE 15 AND component_type = 'R' 16 AND doc_type = 'BILL' 17 AND status = 'RL' 18 ) b 19 , part@DB8I p 20 , dual 21 WHERE b.child_part = p.part_nbr 22 START WITH b.parent_part = 'MYPARTNBR' 23 CONNECT BY b.parent_part = PRIOR b.child_part 24 AND PRIOR p.part_type = 'M' 25 ; Explained. Elapsed: 00:00:00.23 SQL> select * from table(dbms_xplan.display); PLAN_TABLE_OUTPUT ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Plan hash value: 2565617462 -------------------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Inst |IN-OUT| -------------------------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | 299 | 519 (14)| 00:00:07 | | | |* 1 | CONNECT BY WITH FILTERING| | | | | | | | |* 2 | FILTER | | | | | | | | | 3 | COUNT | | | | | | | | | 4 | NESTED LOOPS | | 1 | 299 | 519 (14)| 00:00:07 | | | | 5 | NESTED LOOPS | | 1 | 217 | 517 (14)| 00:00:07 | | | | 6 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 | | | | 7 | REMOTE | BILL | 1 | 217 | 515 (14)| 00:00:07 | DB8I | R->S | | 8 | REMOTE | PART | 1 | 82 | 2 (0)| 00:00:01 | DB8I | R->S | |* 9 | HASH JOIN | | | | | | | | | 10 | CONNECT BY PUMP | | | | | | | | | 11 | COUNT | | | | | | | | | 12 | NESTED LOOPS | | 1 | 299 | 519 (14)| 00:00:07 | | | | 13 | NESTED LOOPS | | 1 | 217 | 517 (14)| 00:00:07 | | | | 14 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 | | | | 15 | REMOTE | BILL | 1 | 217 | 515 (14)| 00:00:07 | DB8I | R->S | | 16 | REMOTE | PART | 1 | 82 | 2 (0)| 00:00:01 | DB8I | R->S | | 17 | COUNT | | | | | | | | | 18 | NESTED LOOPS | | 1 | 299 | 519 (14)| 00:00:07 | | | | 19 | NESTED LOOPS | | 1 | 217 | 517 (14)| 00:00:07 | | | | 20 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 | | | | 21 | REMOTE | BILL | 1 | 217 | 515 (14)| 00:00:07 | DB8I | R->S | | 22 | REMOTE | PART | 1 | 82 | 2 (0)| 00:00:01 | DB8I | R->S | -------------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 1 - filter("DOC_NBR"='MYPARTNBR') 2 - filter("DOC_NBR"='MYPARTNBR') 9 - access("DOC_NBR"=NULL AND NULL='M') Remote SQL Information (identified by operation id): ---------------------------------------------------- 7 - SELECT "DOC_NBR","BEGN_EFF","END_EFF","LST_CODE","COMP_PART_NBR","QTY_PE R","COMPONENT_TYPE","DOC_TYPE","STATUS" FROM "BILL" "BILL" WHERE "COMPONENT_TYPE"='R' AND "DOC_TYPE"='BILL' AND "STATUS"='RL' AND ("LST_CODE"='G' OR "LST_CODE"='M') AND "END_EFF">:1 AND "BEGN_EFF"<=:2 (accessing 'DB8I ' ) 8 - SELECT "PART_NBR","PART_TYPE" FROM "PART" "P" WHERE :1="PART_NBR" (accessing 'DB8I ' ) 15 - SELECT "DOC_NBR","BEGN_EFF","END_EFF","LST_CODE","COMP_PART_NBR","QTY_PE R","COMPONENT_TYPE","DOC_TYPE","STATUS" FROM "BILL" "BILL" WHERE "COMPONENT_TYPE"='R' AND "DOC_TYPE"='BILL' AND "STATUS"='RL' AND ("LST_CODE"='G' OR "LST_CODE"='M') AND "END_EFF">:1 AND "BEGN_EFF"<=:2 (accessing 'DB8I ' ) 16 - SELECT "PART_NBR","PART_TYPE" FROM "PART" "P" WHERE :1="PART_NBR" (accessing 'DB8I ' ) 21 - SELECT "DOC_NBR","BEGN_EFF","END_EFF","LST_CODE","COMP_PART_NBR","QTY_PE R","COMPONENT_TYPE","DOC_TYPE","STATUS" FROM "BILL" "BILL" WHERE "COMPONENT_TYPE"='R' AND "DOC_TYPE"='BILL' AND "STATUS"='RL' AND ("LST_CODE"='G' OR "LST_CODE"='M') AND "END_EFF">:1 AND "BEGN_EFF"<=:2 (accessing 'DB8I ' ) 22 - SELECT "PART_NBR","PART_TYPE" FROM "PART" "P" WHERE :1="PART_NBR" (accessing 'DB8I ' ) ... ... ... Predicate Information (identified by operation id): --------------------------------------------------- 1 - filter("DOC_NBR"='MYPARTNBR') 2 - filter("DOC_NBR"='MYPARTNBR') 9 - access("DOC_NBR"=NULL AND NULL='M') Remote SQL Information (identified by operation id): ---------------------------------------------------- 7 - SELECT "DOC_NBR","BEGN_EFF","END_EFF","LST_CODE","COMP_PART_NBR","QTY_PE R","COMPONENT_TYPE","DOC_TYPE","STATUS" FROM "BILL" "BILL" WHERE "COMPONENT_TYPE"='R' AND "DOC_TYPE"='BILL' AND "STATUS"='RL' AND ("LST_CODE"='G' OR "LST_CODE"='M') AND "END_EFF">:1 AND "BEGN_EFF"<=:2 (accessing 'DB8I ' ) 8 - SELECT "PART_NBR","PART_TYPE" FROM "PART" "P" WHERE :1="PART_NBR" (accessing 'DB8I ' ) 15 - SELECT "DOC_NBR","BEGN_EFF","END_EFF","LST_CODE","COMP_PART_NBR","QTY_PE R","COMPONENT_TYPE","DOC_TYPE","STATUS" FROM "BILL" "BILL" WHERE "COMPONENT_TYPE"='R' AND "DOC_TYPE"='BILL' AND "STATUS"='RL' AND ("LST_CODE"='G' OR "LST_CODE"='M') AND "END_EFF">:1 AND "BEGN_EFF"<=:2 (accessing 'DB8I ' ) 16 - SELECT "PART_NBR","PART_TYPE" FROM "PART" "P" WHERE :1="PART_NBR" (accessing 'DB8I ' ) 21 - SELECT "DOC_NBR","BEGN_EFF","END_EFF","LST_CODE","COMP_PART_NBR","QTY_PE R","COMPONENT_TYPE","DOC_TYPE","STATUS" FROM "BILL" "BILL" WHERE "COMPONENT_TYPE"='R' AND "DOC_TYPE"='BILL' AND "STATUS"='RL' AND ("LST_CODE"='G' OR "LST_CODE"='M') AND "END_EFF">:1 AND "BEGN_EFF"<=:2 (accessing 'DB8I ' ) 22 - SELECT "PART_NBR","PART_TYPE" FROM "PART" "P" WHERE :1="PART_NBR" (accessing 'DB8I ' ) Statistics ---------------------------------------------------------- 381 recursive calls 1 db block gets 0 consistent gets 0 physical reads 304 redo size 15558 bytes sent via SQL*Net to client 417 bytes received via SQL*Net from client 5 SQL*Net roundtrips to/from client 6 sorts (memory) 0 sorts (disk) 379 rows processed SQL> disconnect Disconnected from Oracle Database 10g Express Edition Release 10.2.0.1.0 - ProductionPerformance would be much better if the whole query would be executed on the remote side, but the query uses the local function eval_number as well as parts of the query are executed on the remote side and results are brought alongside local and then only filtering is performed. Try the following:
SELECT part_nbr, parent_part, child_part, eval_number ('1' || path) qty FROM ( SELECT CONNECT_BY_ROOT b.parent_part part_nbr, b.parent_part, b.child_part, SYS_CONNECT_BY_PATH(b.qty_per, '*') path FROM ( SELECT doc_nbr parent_part, comp_part child_part, line_nbr qty_per FROM bill@DB8I WHERE lst_code IN ('G','M') AND begn_eff <= SYSDATE AND end_eff > SYSDATE AND component_type = 'R' AND doc_type = 'BILL' AND status = 'RL' ) b, part@DB8I p WHERE b.child_part = p.part_nbr START WITH b.parent_part = 'MYPARTNBR' CONNECT BY b.parent_part = PRIOR b.child_part AND PRIOR p.part_type = 'M' ) /SY.
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[8i] need help with hierarchical (connection by) query
First of all, I work in 8i.
My problem is, I get the error ORA-01437 message: cannot have join with CONNECT BY.
And the reason why I get this error because one of the criteria that I use to cut a few branches with is in another table... Is anyway to circumvent this? I tried a view online (but got the same error). I thought to use the connection by query views online and filtering off the coast of what I don't want in this way, but I don't know how to filter an entire branch...
Simplified data examples:
It's the questioning of base (with no pruning of branches):CREATE TABLE bom_test ( parent CHAR(25) , component CHAR(25) , qty_per NUMBER(9,5) ); INSERT INTO bom_test VALUES ('ABC-1','101-34',10); INSERT INTO bom_test VALUES ('ABC-1','A-109-347',2); INSERT INTO bom_test VALUES ('ABC-1','ABC-100G',1); INSERT INTO bom_test VALUES ('ABC-1','1A247G01',2); INSERT INTO bom_test VALUES ('ABC-100G','70052',18); INSERT INTO bom_test VALUES ('ABC-100G','M9532-278',5); INSERT INTO bom_test VALUES ('1A247G01','X525-101',2); INSERT INTO bom_test VALUES ('1A247G01','1062-324',2); INSERT INTO bom_test VALUES ('X525-101','R245-9010',2); CREATE TABLE part_test ( part_nbr CHAR(25) , part_type CHAR(1) ); INSERT INTO part_test VALUES ('ABC-1','M'); INSERT INTO part_test VALUES ('101-34','P'); INSERT INTO part_test VALUES ('A-109-347','P'); INSERT INTO part_test VALUES ('ABC-100G','M'); INSERT INTO part_test VALUES ('1A247G01','P'); INSERT INTO part_test VALUES ('70052','P'); INSERT INTO part_test VALUES ('M9532-278','P'); INSERT INTO part_test VALUES ('X525-101','M'); INSERT INTO part_test VALUES ('1062-324','P'); INSERT INTO part_test VALUES ('R245-9010','P');
The above query results:SELECT LEVEL , b.component , b.parent , b.qty_per FROM bom_test b START WITH b.parent = 'ABC-1' CONNECT BY PRIOR b.component = b.parent
.. .but I want to only the branches (children, grandchildren, etc.) the type of part of'm '.LEVEL COMPONENT PARENT QTY_PER ----------- ------------------------- ------------------------- ----------- 1.000 101-34 ABC-1 10.000 1.000 A-109-347 ABC-1 2.000 1.000 ABC-100G ABC-1 1.000 2.000 70052 ABC-100G 18.000 2.000 M9532-278 ABC-100G 5.000 1.000 1A247G01 ABC-1 2.000 2.000 X525-101 1A247G01 2.000 3.000 R245-9010 X525-101 2.000 2.000 1062-324 1A247G01 2.000 9 rows selected.
for example:
Any suggestions?LEVEL COMPONENT PARENT QTY_PER ----------- ------------------------- ------------------------- ----------- 1.000 101-34 ABC-1 10.000 1.000 A-109-347 ABC-1 2.000 1.000 ABC-100G ABC-1 1.000 2.000 70052 ABC-100G 18.000 2.000 M9532-278 ABC-100G 5.000 1.000 1A247G01 ABC-1 2.000Hello
Difficult problem!
Sorry for the false leads I posted last night.
In Oracle 8.1, you can CONNECT BY first of all, in a view online and then to join her, but you can't do the reverse.
We can change the 3 query to get the desired results by replacing the external CONNECTION BY a series of analytical functions to locate all ancestors and finally SELECT a line only if all the ancestors had part_type = am'.It's not pretty, but it works:
SELECT component, parent, qty_per --, r_num, lvl --, SUM (ancestor_ok) FROM ( -- Begin in-line view to calculate ancestor_ok SELECT m.* , CASE WHEN c_num < lvl THEN LAG ( part_ok , r_num - NVL ( a_pos , 0 ) ) OVER ( PARTITION BY c_num ORDER BY r_num ) END AS ancestor_ok FROM ( -- Begin in-line view of 'M' parts in hierarchy SELECT h.component , h.parent , h.qty_per , h.r_num , h.lvl , p.part_ok , c.c_num , MAX ( CASE WHEN lvl = c_num THEN r_num ELSE 0 END ) OVER ( PARTITION BY c_num ORDER BY r_num ROWS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING ) AS a_pos FROM ( -- Begin in-line view h, hierarchy from bom_test SELECT component , parent , qty_per , ROWNUM AS r_num , LEVEL AS lvl FROM bom_test START WITH parent = 'ABC-1' CONNECT BY parent = PRIOR component ) h -- End in-line view h, hierarchy from bom_test , ( -- Begin in-line view p, to get part+_ok from part_test SELECT part_nbr , CASE WHEN part_type = 'M' THEN 1 ELSE 0 END AS part_ok FROM part_test ) p -- End in-line view p, to get part+_ok from part_test , ( -- Begin in-line view c, counter SELECT ROWNUM AS c_num FROM bom_test WHERE ROWNUM <= 10 -- Guess at maximum number of levels, or omit ) c -- End in-line view c, counter WHERE p.part_nbr = h.component AND c.c_num <= h.lvl ) m -- End in-line view of 'M' parts in hierarchy ) -- End in-line view to calculate ancestor_ok GROUP BY component, parent, qty_per , r_num, lvl HAVING lvl = 1 OR lvl = 1 + SUM (ancestor_ok) ORDER BY r_num ;On 11 lines from the bottom, I assumed that the maximum depth of any node would be 10. If you do not higher that it should really be, or if you delete that WHEN the clause, then the query still works, it'll just be less effective.
This works for your sample data and some variations I've tried, including the case where a component has many parents. Sorry, I could not test it very carefully. Try it on some of your actual data, and let me know if there are problems.
I'll try to post a more detailed explanation later.
Basically, it works by capturing the results CONNECT BY in subquery h. Each line is identified solely by r_num, giving its place in CONNECT BY results.
In the subquery m, where most of the work takes place, it calculates the a_pos, the r_num of the ancestor of a node at a given level. That value is used in the LAG later function to see if the ancestor was part_type = am' or not. Only the lines where all the ancestors had part_type = am' are included in the final result set.I did have the time to read the messages you and Dev published today. I'll try to do this and get back to you.
Once more remind the people responsible that the Oracle 8.1 was replaced 9 years ago. Whatever they save by not upgrading is offset by what you have to write and maintain much more complicated code, which in turn runs much, much slower than something on a more recent database.
The following works in Oracle 10 and I think it would work in Oracle 9, too:SELECT b.component, b.parent, b.qty_per FROM bom_test b JOIN part_test p ON b.component = p.part_nbr START WITH b.parent = 'ABC-1' CONNECT BY b.parent = PRIOR b.component AND PRIOR p.part_type = 'M' ;It's 7 lines of code instead of about 65 years it takes to do the same in Oracle 8.1.
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[8i] need help with full outer join combined with a cross join...
I can't understand how to combine a full outer join with a different type of join... is it possible?
Here are some create table and insert for examples of database:
And, the results that I want to get:CREATE TABLE my_tab1 ( record_id NUMBER NOT NULL , workstation VARCHAR2(4) , my_value NUMBER CONSTRAINT my_tab1_pk PRIMARY KEY (record_id) ); INSERT INTO my_tab1 VALUES(1,'ABCD',10); INSERT INTO my_tab1 VALUES(2,'ABCD',15); INSERT INTO my_tab1 VALUES(3,'ABCD',5); INSERT INTO my_tab1 VALUES(4,'A123',5); INSERT INTO my_tab1 VALUES(5,'A123',10); INSERT INTO my_tab1 VALUES(6,'A123',20); INSERT INTO my_tab1 VALUES(7,'????',5); CREATE TABLE my_tab2 ( workstation VARCHAR2(4) , wkstn_name VARCHAR2(20) CONSTRAINT my_tab2_pk PRIMARY KEY (workstation) ); INSERT INTO my_tab2 VALUES('ABCD','WKSTN 1'); INSERT INTO my_tab2 VALUES('A123','WKSTN 2'); INSERT INTO my_tab2 VALUES('B456','WKSTN 3'); CREATE TABLE my_tab3 ( my_nbr1 NUMBER , my_nbr2 NUMBER ); INSERT INTO my_tab3 VALUES(1,2); INSERT INTO my_tab3 VALUES(2,3); INSERT INTO my_tab3 VALUES(3,4);
I tried a number of different things, google my problem and no luck yet...workstation sum(my_value) wkstn_name my_nbr1 my_nbr2 --------------------------------------------------------------- ABCD 30 WKSTN 1 1 2 ABCD 30 WKSTN 1 2 3 ABCD 30 WKSTN 1 3 4 A123 35 WKSTN 2 1 2 A123 35 WKSTN 2 2 3 A123 35 WKSTN 2 3 4 B456 0 WKSTN 3 1 2 B456 0 WKSTN 3 2 3 B456 0 WKSTN 3 3 4 ???? 5 NULL 1 2 ???? 5 NULL 2 3 ???? 5 NULL 3 4
So, what I want, it's a full outer join of t1 and t2 on workstation and a cross join of one with the t3. I wonder if I can't find examples of it online because it is not possible...SELECT t1.workstation , SUM(t1.my_value) , t2.wkstn_name , t3.my_nbr1 , t3.my_nbr2 FROM my_tab1 t1 , my_tab2 t2 , my_tab3 t3 ...
Note: I'm stuck dealing with Oracle 8i
Thank you!!Hello
The query I posted yesterday is a little more complex that it should be.
My_tab2.workstation is unique, there is no reason to make a separate subquery as mt1. We can join my_tab1 to my_tab2 and get the SUM in a subquery.SELECT foj.workstation , foj.sum_my_value , foj.wkstn_name , mt3.my_nbr1 , mt3.my_nbr2 FROM ( -- Begin in-line view foj for full outer join SELECT mt1.workstation , SUM (mt1.my_value) AS sum_my_value , mt2.wkstn_name FROM my_tab1 mt1 , my_tab2 mt2 WHERE mt1.workstation = mt2.workstation (+) GROUP BY mt1.workstation , mt2.wkstn_name -- UNION ALL -- SELECT workstation , 0 AS sum_my_value , wkstn_name FROM my_tab2 WHERE workstation NOT IN ( -- Begin NOT IN sub-query SELECT workstation FROM my_tab1 WHERE workstation IS NOT NULL ) -- End NOT IN sub-query ) foj -- End in-line view foj for full outer join , my_tab3 mt3 ORDER BY foj.wkstn_name , foj.workstation , mt3.my_nbr1 , mt3.my_nbr2 ;Thanks for posting the CREATE TABLE and INSERT statements, and very clear expected results!
user11033437 wrote:
... So, what I want, it's a full outer join of t1 and t2 on workstation and a cross join of one with the t3.She, exactly!
The trickiest part is when and how get SUM (my_value). You could address the question of exactly what my_tab3 must be attached to a cross that's exactly what should look like the result set of the full outer join between my_tab1 and my_tab2 to. To do this, take your desired results, remove columns that do not come from the outer join complete and delete duplicate rows. You will get:workstation sum(my_value) wkstn_name ----------- ------------- ---------- ABCD 30 WKSTN 1 A123 35 WKSTN 2 B456 0 WKSTN 3 ???? 5 NULLSo the heart of the problem is how to get these results of my_tab1 and my_tab2, which is done in the subquery FOJ above.
I tried to use auto-documenté in my code names. I hope you can understand.
I could spend hours explaining the different parts of this query more in detail, but I don't know that I would lose some of that time, explain things that you already understand. If you want an explanation of the specific element (s), let me know. -
Oracle Version: 11.2.0.2.0
I need assistance with the output of the query. Here is the table.
With Tbl_Nm as
(
Select 'ABC1' SYSTEM_ID, REGION 'US', 'CHI' SUB_REGION 4000 BALANCE, to_date('1-JUN-2012 10:45:00 am', 'dd-mon-yyyy hh:mi:ss am') LAST_UPD_TIME, 'A' FLAG of union double all the
Select 'PQR2', 'UK', 'LN', 2000, To_Date('1-JUL-2012 10:46:00 am', 'dd-mon-yyyy hh:mi:ss am'), has ' starting from dual Union All
Select 'ABC1', 'IND","MAMA", 3500, To_Date('1-AUG-2012 11:47:00 am', 'dd-mon-yyyy hh:mi:ss am'), 'A' from dual Union All
Select "LMN3", "US", "NJ", 2500, To_Date('1-SEP-2012 09:49:00 am', 'dd-mon-yyyy hh:mi:ss am'), 'A' from dual Union All
Select "PQR2", "UK", "MC", 2600, To_Date('1-OCT-2012 04:45:00 am', 'dd-mon-yyyy hh:mi:ss am'), 'A' from dual Union All
Select 'ABC1', 'US', 'NY', 3200, To_Date('1-OCT-2012 06:45:00 am', 'dd-mon-yyyy hh:mi:ss am'), has ' starting from dual Union All
Select "LMN3", "UK", "BT", 2400, To_Date('1-NOV-2012 07:45:00 am', 'dd-mon-yyyy hh:mi:ss am'), has ' From Dual
)
Select * from tbl_nm
I need the output below.
PQR2 UK MC 2600 1 OCTOBER 2012 04:45
ABC1 US NY 3500 October 1, 2012 06:45
LMN3 UK BT 2500 November 1, 2012 07:45
The need the disc according to this system_id flagged as "A". But if the last disc of 'd' then it must show that the amount, but the file should be displayed in 'A '.
I've tried a few and got stuck. Help, please. Not able to get a balance '.
This question is a bit similar to needing help with a query result
With Tbl_Nm as
(
Select 'ABC1' System_Id, region 'US', 'CHI' Sub_Region, 4000 balance, To_Date('1-JUN-2012 10:45:00 am', 'dd-mon-yyyy hh:mi:ss am') Last_Upd_Time, 'A' flag of double Union All
Select 'PQR2', 'UK', 'LN', 2000, To_Date('1-JUL-2012 10:46:00 am', 'dd-mon-yyyy hh:mi:ss am'), has ' starting from dual Union All
Select 'ABC1', 'IND","MAMA", 3500, To_Date('1-AUG-2012 11:47:00 am', 'dd-mon-yyyy hh:mi:ss am'), 'A' from dual Union All
Select "LMN3", "US", "NJ", 2500, To_Date('1-SEP-2012 09:49:00 am', 'dd-mon-yyyy hh:mi:ss am'), 'A' from dual Union All
Select "PQR2", "UK", "MC", 2600, To_Date('1-OCT-2012 04:45:00 am', 'dd-mon-yyyy hh:mi:ss am'), 'A' from dual Union All
Select 'ABC1', 'US', 'NY', 3200, To_Date('1-OCT-2012 06:45:00 am', 'dd-mon-yyyy hh:mi:ss am'), has ' starting from dual Union All
Select "LMN3", "UK", "BT", 2400, To_Date('1-NOV-2012 07:45:00 am', 'dd-mon-yyyy hh:mi:ss am'), has ' From Dual
)
Select System_Id, region, Sub_Region, Balance, Last_Upd_Time of Tbl_Nm T1
where t1. Last_Upd_Time = (select max (Last_Upd_Time) in the Tbl_Nm T2 where T1.) SYSTEM_ID = T2. SYSTEM_ID)
So maybe you'd then
ORDER BY DECODE(flag,'D',9,1) ASC...
to get the Ds at the end of the list.
or
ORDER BY CASE WHAT flag = has ' (your other filters) AND then 9 or 1 end CSA,...
HTH
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Hello
I have a data in table (raj_table) with columns (char11) raj_id, raj_number (varchar2 (15)), raj_format (NUMBER), Primary_ID (identity with the values of the primary key column)
Primary_ID raj_id Raj_number Raj_format
1 raj rajvend 1
2 raj rajvend 1
3 raj rajvendor1 2
4 raj rajvendor1 2
5 raj rajvendor1 2
6 raj rajvendor2 3
I used under SQL to get query output as below, but has not achieved the required result:
Select client_id vendor_number, vendor_format, primary_id, row_number() on sl_no (client_id partition, primary_id, vendor_format order of client_id primary_id, vendor_format, vendor_number, vendor_number)
from raj_table by sl_no asc
SL_NO raj_id raj_number raj_format primary_id
1 1 raj rajvendor 1
1 2 raj rajvendor 1
2 3 raj rajvendor1 2
2 4 raj rajvendor1 2
2 5 raj rajvendor1 2
3 6 raj rajvendor2 3
I need help with a SQL query to get the result as above without using the group by clause. I want to bring together the combination of separate line of the three columns (raj_id, raj_number, raj_format) and add a unique serial number for each online game (SL_NO column below). So, above there are 3 unique set of (raj_id, raj_number, raj_format) I can get in a group by clause, but I can not add prmiary_id, SL_NO values if I group by clause. I used the analytical functions like row_number() but no luck. Need solution for this.
with t as)
Select 'raj' raj_id, 'rajvend' raj_number, 1 raj_format, 1 primary_id Union double all the
Select option 2, 'raj', 'rajvend', 1 double Union all
Select 3, 'raj', 'rajvendor1', 2 double Union all
Select 4, 'raj', 'rajvendor1', 2 double Union all
Select 5, 'raj', 'rajvendor1', 2 double Union all
Select 6, 'raj', 'rajvendor2', 3 double
)
Select dense_rank() over (order of raj_id, raj_number, raj_format) sl_no,
t.*
t
order by primary_id
/
PRIMARY_ID RAJ RAJ_NUMBER RAJ_FORMAT SL_NO
---------- ---------- --- ---------- ----------
1 1 raj rajvend 1
1 2 raj rajvend 1
2 3 raj rajvendor1 2
2 4 raj rajvendor1 2
2 5 raj rajvendor1 2
3 6 raj rajvendor2 36 selected lines.
SQL >
SY.
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Need help with query Cumulative difference
Hi all
I need help with a query and my requirement is as below
{code}
ROWNO ORDERS VALUE 1 10 900 2 11 700 3 12 500 4 13 400 {/ code}
I have need to query which will display the cumulative difference for example I value tell 10000 numbers opening
now I need for each of the lines of cumulative difference
{code}
ROWNO ORDERS DIFF
1 10 10000 - 900 = 9100
2 11 9100 - 700 = 8400
3 12 8400 - 500 = 7900
4 13 7900 - 400 = 7500
{/ code}
WITH commands LIKE (10 SELECT order_id, 900 double UNION ALL val
11. SELECT, 700 FROM dual UNION ALL
SELECT 12, 500 FROM dual UNION ALL
Select 13, 400 double)SELECT row_number() over (ORDER BY order_id ASC) AS rowno
order_id
sum (val) 10000 - OVER (ORDER BY order_id ASC) AS diff
orders/
HTH
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Need help with query between 2 dates
Hello
I did not SEE in a long time and need help with a simple query.
I have a table of DB access with 3 fields, name, date and number
What I want is to create a query to retrieve all the names between 2 dates
When I ask the date field, the results are showing in this formats 2013-07-12 00:00:00
Here's my query
< cfquery datasource = 'mydb' name = 'test' >
SELECT name from myTable
where edate between ' 2011-01-01 00:00:00 ' AND ' 2013-01-01 00:00:00 '
< / cfquery >
< cfoutput query = 'test' >
#name #.
< / cfoutput >
What I get is this error
ODBC = 22005 (assignment error) error code
[Microsoft] [ODBC Microsoft Access driver] Type mismatch of data in the expression of the criteria.
Don't know what I'm doing wrong here.
Please let me know.
Thank you
SELECT ename
FROM MyTable
WHERE edate BETWEEN
AND
#ename #.
-
Need help with PL/SQL query complex
I need help with a query that need access to data from 3 tables. That's what I did
I created 3 tables
CREATE TABLE post_table
(
post_id varchar (20),
datepost DATE,
KEY (post_id) elementary SCHOOL
) ;
CREATE TABLE topic
(
TOPIC_ID varchar (20),
name varchar (20),
PRIMARY KEY (topic_id)
);
CREATE TABLE blogpost_table
(
TOPIC_ID varchar (20),
post_id varchar (20),
PRIMARY KEY (topic_id, post_id);
FOREIGN KEY (topic_id) REFERENCES topic (topic_id) ON DELETE CASCADE,
FOREIGN KEY (post_id) REFERENCES post_table (post_id) ON DELETE CASCADE
);
Now, I inserted a few values in these tables as
INSERT INTO post_table VALUES ('p1', to_date ('2009-09-14 18:00 "," MM/DD/YYYY mi:ss'));))
INSERT INTO post_table VALUES ('p2', to_date ('2009-07-18 18:00 "," MM/DD/YYYY mi:ss'));))
INSERT INTO post_table VALUES ('p3', to_date ('2009-07-11 18:00 "," MM/DD/YYYY mi:ss'));))
INSERT INTO post_table VALUES ('p4', to_date ('2009-03-11 18:00 "," MM/DD/YYYY mi:ss'));))
INSERT INTO post_table VALUES ('p5', to_date ('2009-07-13 18:00 "," MM/DD/YYYY mi:ss'));))
INSERT INTO post_table VALUES ('p6', to_date ('2009-06-12 18:00 "," MM/DD/YYYY mi:ss'));))
INSERT INTO post_table VALUES ('p7', to_date ('2009-07-11 18:00 "," MM/DD/YYYY mi:ss'));))
INSERT INTO VALUES subject ("t1", "baseball");
INSERT INTO category VALUES ('t2', 'football');
INSERT INTO blogpost_table VALUES ("t1", "p1");
INSERT INTO blogpost_table VALUES ('t1', 'p3');
INSERT INTO blogpost_table VALUES ("t1", "p4");
INSERT INTO blogpost_table VALUES ('t1', 'p5');
INSERT INTO blogpost_table VALUES ('t2', 'p2');
INSERT INTO blogpost_table VALUES ('t2', 'p6');
INSERT INTO blogpost_table VALUES ("t2", "p7");
I'm launching SQL queries on the table in this topic.
I want to write a SQL query that returns me the name of a topic (s) and the number of blog_post (s) associated with the topic in descending order of the number of blog posts created in July.
Can someone please help me to write this query?
Thank you
Published by: user11994430 on October 9, 2009 07:24Thanks for the test of the configuration!
SQL>SELECT t.NAME, COUNT(*) 2 FROM topic t, blogpost_table b, post_table p 3 WHERE b.topic_id = t.topic_id 4 AND p.post_id = b.post_id 5 AND p.datepost >= DATE '2009-07-01' 6 AND p.datepost < DATE '2009-08-01' 7 GROUP BY t.NAME 8 ORDER BY COUNT(*) desc; NAME COUNT(*) -------------------- ---------- baseball 2 soccer 2HTH, Urs
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