assessment polynomial vi giving inconsistent results
I'm looking at an easier method to evaluate polynomial, rather than using formulas nodes that I currently use. I found the "polynomial evaluation vi' who would think based on aid would be able to calculate the result of a polynomial Exhibitor multi.
Currently, I would do something like the following in a node of the formula:
float64 D1 = 0.387481063640E - 01;
float64 D2 = 0.332922278800E - 04;
float64 D3 = 0.206182434040E - 06;
float64 D4 = - 0.218822568460E - 08.
float64 D5 = 0.109968809280E - 10;
float64 D6 = - 0.308157587720E - 13;
float64 D7 = 0.454791352900E - 16;
float64 D8 = - 0.275129016730E - 19;
DC = (V * D1) +(D2*V**2) +(D3*V**3) +(D4*V**4) +(D5*V**5) +(D6*V**6) +(D7*V**7) +(D8*V**8).
I tried the same calculation by writing a little VI which used the polymomial assessment vi and get seriously incorrect results. (my vi attached).
Research in the evaluation of the polynomial vi, honestly, I don't know how it is supposed to work, unless he's trying to do something completely different that I do. (With the help of labview 2015)
I'm open to suggestions here. Thank you! Mitch
The first table is the constant term (V ^ 0 = 1), if you need to add an element that is equal to zero in the table of coefficients.
The polynomial is defined as:
DC = D0 + (V * D1) +(D2*V**2) +(D3*V**3) +(D4*V**4) +(D5*V**5) +(D6*V**6) +(D7*V**7) +(D8*V**8)
In your case, D0 = 0, but there still need to be there.
... and are not the constant diagram EXT. As you can see about to constraint, it will be converted in any case to DBL.
Tags: NI Software
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$. pipelineTools.MetadataController.prototype.setMediaStartTimecode = {function (timecode)}
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< / xmpDM:startTimecode >
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< xmpDM:timeFormat > 24Timecode < / xmpDM:timeFormat >
< / xmpDM:altTimecode >
soc020 (qualifications):
< xmpDM:altTimecode rdf:parseType = "Resource" >
< xmpDM:timeValue > 00:00:04:05 < / xmpDM:timeValue >
< / xmpDM:altTimecode >
< xmpDM:startTimecode rdf:parseType = "Resource" >
< xmpDM:timeValue > 00:00:00:00 < / xmpDM:timeValue >
< / xmpDM:startTimecode >
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Thank you.
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To_date gives inconsistent results?
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v_Result: = 't';
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--
Helge mouldingHi, Helge,
Welcome to the forum!
If you run a query like this:
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The optimizer decides which of the conditions to assess the first; Apparently, he thinks that the new condition, using TO_DATE, will restrict the faster search, so he dioes than a first.
The best solution could be to o re is_valid_date - write or write a similar function, which, instead of return 't' or 'F', it returns the DATE when the string can be converted to a DATE, and NULL otherwise. The function will be equally effective; You must call TO_DATE anyway. In this case, it will be actually more efficient, since you only have to call time, inside the function TO_DATE, once again not in the query.
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Without changing the function, you can make sure the conversion is made first, like this:
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or you can compare strings rather than DATEs:
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Check this. I just simplified your query by removing just the other columns in the select list. But the CONNECT BY and are of the join of the table intact.
SQL > select subtree.id
2 usertable,
3 treenames,
subtree 4
5 where upper (usertable.username) = upper ('scott')
6 and treenames.treename_code = usertable.treename_code
7 and subtree.treename_code = treenames.treename_code
8 start
9 with subtree.parent_id is null
10 connect
11 by prior subtree.id = subtree.parent_id;ID
----------
2
1
2SQL > select * from table (dbms_xplan.display_cursor);
PLAN_TABLE_OUTPUT
-------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |
----------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | | | 7 (100) | |
|* 1 | FILTER | | | | | |
|* 2 | CONNECT BY WITH FILTERING | | | | | |
|* 3 | HASH JOIN | | 2. 102. 7 (15) | 00:00:01 |
| 4. THE CARTESIAN MERGE JOIN. | 2. 90. 4 (0) | 00:00:01 |
|* 5 | TABLE ACCESS FULL | SUBTREE. 1. 32. 2 (0) | 00:00:01 |
| 8 2 SORT OF BUFFER. | 2. 26. 2 (0) | 00:00:01 |
| 7. TABLE ACCESS FULL | USERTABLE | 2. 26. 2 (0) | 00:00:01 |
| 3 × TABLE ACCESS FULL | TREENAMES | 1. 8-2-2 (0) | 00:00:01 |
|* 9 | HASH JOIN | | 1. 51. 7 (15) | 00:00:01 |
| 10. THE CARTESIAN MERGE JOIN. | 1. 45. 4 (0) | 00:00:01 |
| * 11 | HASH JOIN | | | | | |
| 12. CONNECT PUMP | | | | | |
| 13. TABLE ACCESS FULL | SUBTREE. 1. 32. 2 (0) | 00:00:01 |
| 14. KIND OF BUFFER. | 2. 26. 2 (0) | 00:00:01 |
| 15. TABLE ACCESS FULL | USERTABLE | 2. 26. 2 (0) | 00:00:01 |
| 16. TABLE ACCESS FULL | TREENAMES | 1. 6. 2 (0) | 00:00:01 |
----------------------------------------------------------------------------------------Information of predicates (identified by the operation identity card):
---------------------------------------------------1 Filter (SUPERIOR ("USERTABLE".) "USER NAME") = "SCOTT") "
2 - access("SUBTREE".") PARENT_ID "= NULL PREREQUISITE)
3 - access("TREENAMES".") TREENAME_CODE '=' USERTABLE '. "" TREENAME_CODE "AND
"SUBTREE". "" TREENAME_CODE "=" TREENAMES. " ("' TREENAME_CODE")
5 - filter("SUBTREE".") (PARENT_ID' IS NULL)
9 - access("TREENAMES".") TREENAME_CODE '=' USERTABLE '. "" TREENAME_CODE "AND
"SUBTREE". "" TREENAME_CODE "=" TREENAMES. " ("' TREENAME_CODE")
11 - access("SUBTREE".") PARENT_ID "= NULL PREREQUISITE)If you see that the filter for the USER name is applied after that CONNECT BY runs. But if I use a view online. then check it
SQL > select id
2 starting at)
3. Select subtree.id
4, subtree.parent_id
5 usertable,
6 treenames,
subtree 7
8 where upper (usertable.username) = upper ('scott')
9 and treenames.treename_code = usertable.treename_code
10 and subtree.treename_code = treenames.treename_code
11 )
Starter 12
13 with parent_id is null
14 connect
15 by parent_id = prior id;ID
----------
1
2SQL > select * from table (dbms_xplan.display_cursor);
PLAN_TABLE_OUTPUT
-------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |
---------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | | | 7 (100) | |
|* 1 | CONNECT BY WITH FILTERING | | | | | |
|* 2 | HASH JOIN | | 1. 51. 7 (15) | 00:00:01 |
| 3. THE CARTESIAN MERGE JOIN. | 1. 45. 4 (0) | 00:00:01 |
|* 4 | TABLE ACCESS FULL | USERTABLE | 1. 13. 2 (0) | 00:00:01 |
| 5. KIND OF BUFFER. | 1. 32. 2 (0) | 00:00:01 |
|* 6 | TABLE ACCESS FULL | SUBTREE. 1. 32. 2 (0) | 00:00:01 |
| 7. TABLE ACCESS FULL | TREENAMES | 1. 6. 2 (0) | 00:00:01 |
|* 8 | HASH JOIN | | 1. 51. 7 (15) | 00:00:01 |
| 9. THE CARTESIAN MERGE JOIN. | 1. 45. 4 (0) | 00:00:01 |
| * 10 | HASH JOIN | | | | | |
| 11. CONNECT PUMP | | | | | |
| 12. TABLE ACCESS FULL | SUBTREE. 1. 32. 2 (0) | 00:00:01 |
| 13. KIND OF BUFFER. | 1. 13. 2 (0) | 00:00:01 |
| * 14 | TABLE ACCESS FULL | USERTABLE | 1. 13. 2 (0) | 00:00:01 |
| 15. TABLE ACCESS FULL | TREENAMES | 1. 6. 2 (0) | 00:00:01 |
---------------------------------------------------------------------------------------Information of predicates (identified by the operation identity card):
---------------------------------------------------1 - access("SUBTREE".") PARENT_ID "= NULL PREREQUISITE)
2 - access("TREENAMES".") TREENAME_CODE '=' USERTABLE '. "" TREENAME_CODE "AND
"SUBTREE". "" TREENAME_CODE "=" TREENAMES. " ("' TREENAME_CODE")
4 filter (SUPERIOR ("USERTABLE".) "USER NAME") = "SCOTT") "
6 - filter("SUBTREE".") (PARENT_ID' IS NULL)
8 - access("TREENAMES".") TREENAME_CODE '=' USERTABLE '. "" TREENAME_CODE "AND
"SUBTREE". "" TREENAME_CODE "=" TREENAMES. " ("' TREENAME_CODE")
10 - access("SUBTREE".") PARENT_ID "= NULL PREREQUISITE)
14 filter (SUPERIOR ("USERTABLE".) "USER NAME") = "SCOTT") "Here, the filter is applied before CONNECT you IS executed. This is the reason why you get the unexpected result in your query. Use the online mode.
-
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Hello
I am a newbie in XML and I try to extract the XMLType column information.
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(
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)
_________________________________________________________________
I am the slot loading XML file in the CUSTDOC column
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< style >
< dataFormat >
< dateFormat / >
< / dataFormat >
< / style >
< / date >
< / Summary >
< style >
< value="vertical-align:top;text-align:left;width:25%"/ CSS >
< / style >
< / tableCell >
< tableCell >
< content >
< pageNumber / >
< / Summary >
< style >
< value="vertical-align:top;text-align:center;width:50%"/ CSS >
< / style >
< / tableCell >
< tableCell >
< content >
< time >
< style >
< dataFormat >
< timeFormat / >
< / dataFormat >
< / style >
< / time >
< / Summary >
< style >
< value="vertical-align:top;text-align:right;width:25%"/ CSS >
< / style >
< / tableCell >
< / tableCells >
< / tableRow >
< / TableRow >
< style >
< defaultStyles >
< defaultStyle = "CT" refStyle / >
< / defaultStyles >
< value="border-collapse:collapse;width:100%"/ CSS >
< / style >
< /table >
< / Summary >
< style >
< defaultStyles >
< defaultStyle = "pf" refStyle / >
< / defaultStyles >
< value = CSS "padding-top: 10px" / >
< / style >
< / pageFooter >
< / print this page >
< / reportPages >
< / page layout >
< / page layout >
< XMLAttributes >
< name XMLAttribute = "RS_CreateExtendedDataItems" value = "true" output = "no" / >
< name XMLAttribute = "listSeparator' value = ',' output ="no"/ >
< / XMLAttributes >
< / report >
____________________________________________________________________________________
I run the query below
SELECT SYS. XMLTYPE. GETCLOBVAL (SYS. XMLTYPE. Extract ("CUSTDOC",'/ Report/Queries/Query/Selection/DataItem/expression / Text () ')) 'CUSTDOC' OF 'PRODUCT '.
and I await the result below
CUSTDOC
---
[ABC]. [XYZ]. [Incident]
but I am NOTHING.
Please help me. Don't know what I'm doing wrong here.
Kind regards
RaviHi Ravi,
Don't know what I'm doing wrong here.
Two things:
-EXTRACT function is deprecated--> use XMLQuery or XMLTable rather
-You are missing the namespace declarationSee if it works for you:
SQL> SELECT XMLCast( 2 XMLQuery( 3 'declare default element namespace "http://developer.cognos.com/schemas/report/6.0/"; (: :) 4 /report/queries/query/selection/dataItem/expression' 5 passing t.custdoc 6 returning content 7 ) 8 as varchar2(30) 9 ) as expr 10 FROM product t ; EXPR ------------------------------ [ABC].[XYZ].[Incident]
-
sdo_union gives inconsistent results
Hello
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0
We use sdo_union to convert the geometries of the line. Some geometries inserted in our database have sdo_gtype 2006, but can be easily converted in 2002 using a query like:
We note however is you run the query again, he continues to find results! It makes no sense at all...update lines_tb l set shape = case when sdo_geom.sdo_union(l.shape, l.shape, 0.001).sdo_gtype = 2002 then sdo_geom.sdo_union(l.shape, l.shape, 0.001) else l.shape end where l.shape.sdo_gtype = 2006;
Modesty only that I can do, is that sdo_union is not consistent with its findings!
Can someone confirm this behavior?
Thank you
ROPHi Rop,
Then it must be a problem already fixed, because I am using Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - Production, and whenever I run this 2002 returns.
Time to migrate to 11g :)
It seems therefore ;-)
See you soon,.
Stefan -
Complex instruction AMOUNT giving erratic results! WHY!
This part of my request;
Sum (totalSCs) + (totalCalls) + ((TSLdays) * (WCG)) / (5) / (QTCG) AS PerCalls
give me a block erratic result... specifically 24.03 instead de.16
1 + 23 + (1 * 22) / 5) 176 =.16
I write this evil? Any help would be greatly appreciated!
(1 + 23 + (1 * 22 / 5)) 176 = 0.16...
Similarly,.
(SUM (totalSCs) + totalCalls + (TSLdays * WCG/5)) / QTCG AS PerCalls
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Recordset to return inconsistent results
I'm developing a site in php using mysql and apache.
I have finally managed to get a database connection and is trying to create recordsets.
This is where the difficulties lie.
I have 14 tables, with the majority of the drop down menus. -All these (single column) return recordsets without any problem.
The two main relational tables have several columns.
If I select a most simple selected columns, I have no problem, but there are two columns where no recordset is returned. I tried to rename these columns without effect. The sql query looks very good and works with two columns.
Ayone explain this inconsistency?
Is this something to do with the field definition?
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Question about the inconsistent results when you query v$ sqlarea
Good evening
I do an exercise on threads that consume too much CPU to find and why.
I have the following (bad code) running in the session from a client to create a problem to diagnose:
In another session, logged in as SYS, I execute the following query:USER is "SCOTT" SQL> declare 2 l_date date; 3 begin 4 for i in 1..10000000 loop 5 select sysdate into l_date from dual; 6 end loop; 7 end; 8 /
The results I get from the above query vary as shown below:col sid format 9999 col serial# format 9999999 col ospid format a8 col sql_text format a40 col sql_cn format 9999 select s.sid , s.serial# , p.spid ospid , q.sql_text , s.sql_child_number sql_cn from v$process p , v$session s , v$sqlarea q where p.addr = s.paddr and s.sql_id = q.sql_id(+) and p.spid = &os_process_id;
Is: why is it that sometimes the result of the query shows that the "SELECT SYSDATE FROM DUAL" and other times it shows the entire text of PL/SQL? I would have guessed that SQL_TEXT content would remain constant during execution of the block of code - that's a wrong assumption?SQL> @tcpu Enter value for os_process_id: 1104 old 11: and p.spid = &os_process_id new 11: and p.spid = 1104 SID SERIAL# OSPID SQL_TEXT SQL_CN ----- -------- -------- ---------------------------------------- ------ 31 8564 1104 SELECT SYSDATE FROM DUAL 0 SQL> @tcpu Enter value for os_process_id: 1104 old 11: and p.spid = &os_process_id new 11: and p.spid = 1104 SID SERIAL# OSPID SQL_TEXT SQL_CN ----- -------- -------- ---------------------------------------- ------ 31 8564 1104 declare l_date date; begin for i in 0 1..10000000 loop select sysdate int o l_date from dual; end loop; end;
Thank you for your help,
John.Hello
There's a thing in the execution of PL/SQL which is called context switching, your PL/SQL is executed by PL/SQL engine and when there is a SQL in Pl/SQL, it is performed by the SQL engine and it runs separately and as a result some time when you ask, the execution pointer is on your PL/SQL for loop and some times it is the select statement.Salman
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