Re: Fetch_find problem ?
Thanks a lot, it's just a reduced simple sample code
the result only have problem when the filter is in descending order
and if the filter is in ascending order the results have no problem at all
BTW, I have send to alphafive to clarify this problem.
result
XXX()
20130811 9
20130104 451
-----------------------------
20130101 -9
20130102 -9
20130103 -9
20130104 451
20130105 -451
20130106 -451
20130107 -451
20130108 -451
20130809 -451
20130810 -451
20130811 9
20130812 -9
20130813 -9
-----------------------------
20130104 451
20130811 9
-----------------------------
20130101 -451
20130102 -451
20130103 -451
20130104 451
20130105 -9
20130106 -9
20130107 -9
20130108 -9
20130809 -9
20130810 -9
20130811 9
20130812 -9
20130813 -9
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It is highly recommended that a Search be done on your topic before posting, as many questions have been answered in prior posts. As with any search engine, the shorter the search term, the more "hits" will be returned, but the more specific the search term is, the greater the relevance of those "hits". Searching for "table" might well return every message on the board while "tablesum" would greatly restrict the number of messages returned.
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First, make sure you are posting your question in the correct forum. For example, if you post an issue regarding Desktop applications on the Mobile & Browser Applications board , not only will your question not be seen by the appropriate audience, it may also be removed or relocated.
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You may only attach one file to each message. Attachment file size is limited to 2MB. If you need to include several files, you may do so by zipping them into a single archive.
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Fetch_find problem ?
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Re: Fetch_find problem ?
Fred,
In according book,
a negative number corresponding to the record number of the closest matching record is returned.
but the problem is from fetch_find() function that return the un-expected recordLast edited by johnkoh; October 02, 2013, 08:23 AM.
Leave a comment:
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Re: Fetch_find problem ?
thanks for your support, I can do the query_create without any problem even with descending option. as you see from the code, it show the correct date value and recno() value within fetch loop
but the problem is from fetch_find() function that return the un-expected record according to the document for the closest records pointed if find() can't get the extract record.
Thanks
Leave a comment:
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Re: Fetch_find problem ?
Fred
I have tested from AlphaSports. It is fine with sort order.
Code:vCustId ="00000012" vGetAll ="" dim tbl as p tbl = table.open("invoice_header") 'query.filter ="customer_id="+quote(vCustId) query.filter =.t. query.order ="dtos(date)" query.options ="d" qry = tbl.query_create() rcd = qry.records_get() tbl.fetch_first() while .not. tbl.fetch_eof() 'vInvNumb = tbl.Invoice_number 'vInvDate = tbl.Date vGetAll = vGetall+tbl.Invoice_number+" "+tbl.Date+crlf() tbl.fetch_next() end while qry.drop() tbl.close() showvar(vGetall)
How to get record 451 if date is less than "01/04/2013" ?
or do you want to find the Record number 451 with your filter?
Leave a comment:
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Re: Fetch_find problem ?
Seems it's a bug when the order is in "DESCENDING"
-------------------------------------------------------------------------------
FUNCTION XXX AS C ()
abc = table.open("stk_tran")
abcq = abc.query_create("D","STK_CODE="+QUOTE("232-1000IN"),"DTOS(TRAN_DATE)")
ABC.FETCH_FIRST()
while .not. abc.fetch_eof()
? DTOS(ABC.TRAN_DATE)
? STR(ABC.RECNO())
? CRLF()
abc.fetch_next()
end while
? "-----------------------------"+CRLF()
? "20130101 "+ STR(ABC.FETCH_FIND("20130101")) + CRLF()
? "20130102 "+ STR(ABC.FETCH_FIND("20130102")) + CRLF()
? "20130103 "+ STR(ABC.FETCH_FIND("20130103"))+ CRLF()
? "20130104 "+ STR(ABC.FETCH_FIND("20130104"))+ CRLF()
? "20130105 "+ STR(ABC.FETCH_FIND("20130105"))+ CRLF()
? "20130106 "+ STR(ABC.FETCH_FIND("20130106"))+ CRLF()
? "20130107 "+ STR(ABC.FETCH_FIND("20130107"))+ CRLF()
? "20130108 "+ STR(ABC.FETCH_FIND("20130108"))+ CRLF()
? "20130809 "+ STR(ABC.FETCH_FIND("20130809"))+ CRLF()
? "20130810 "+ STR(ABC.FETCH_FIND("20130810"))+ CRLF()
? "20130811 "+ STR(ABC.FETCH_FIND("20130811"))+ CRLF()
? "20130812 "+ STR(ABC.FETCH_FIND("20130812"))+ CRLF()
? "20130813 "+ STR(ABC.FETCH_FIND("20130813"))+ CRLF()
? "-----------------------------"+CRLF()
abcq = abc.query_create("","STK_CODE="+QUOTE("232-1000IN"),"DTOS(TRAN_DATE)")
ABC.FETCH_FIRST()
WHILE .NOT. abc.fetch_eof()
? DTOS(ABC.TRAN_DATE)
? STR(ABC.RECNO())
? CRLF()
ABC.FETCH_NEXT()
END WHILE
? "-----------------------------"+CRLF()
? "20130101 "+ STR(ABC.FETCH_FIND("20130101")) + CRLF()
? "20130102 "+ STR(ABC.FETCH_FIND("20130102")) + CRLF()
? "20130103 "+ STR(ABC.FETCH_FIND("20130103"))+ CRLF()
? "20130104 "+ STR(ABC.FETCH_FIND("20130104"))+ CRLF()
? "20130105 "+ STR(ABC.FETCH_FIND("20130105"))+ CRLF()
? "20130106 "+ STR(ABC.FETCH_FIND("20130106"))+ CRLF()
? "20130107 "+ STR(ABC.FETCH_FIND("20130107"))+ CRLF()
? "20130108 "+ STR(ABC.FETCH_FIND("20130108"))+ CRLF()
? "20130809 "+ STR(ABC.FETCH_FIND("20130809"))+ CRLF()
? "20130810 "+ STR(ABC.FETCH_FIND("20130810"))+ CRLF()
? "20130811 "+ STR(ABC.FETCH_FIND("20130811"))+ CRLF()
? "20130812 "+ STR(ABC.FETCH_FIND("20130812"))+ CRLF()
? "20130813 "+ STR(ABC.FETCH_FIND("20130813"))+ CRLF()
END FUNCTION
result
XXX()
20130811 9
20130104 451
-----------------------------
20130101 -9
20130102 -9
20130103 -9
20130104 451
20130105 -451
20130106 -451
20130107 -451
20130108 -451
20130809 -451
20130810 -451
20130811 9
20130812 -9
20130813 -9
-----------------------------
20130104 451
20130811 9
-----------------------------
20130101 -451
20130102 -451
20130103 -451
20130104 451
20130105 -9
20130106 -9
20130107 -9
20130108 -9
20130809 -9
20130810 -9
20130811 9
20130812 -9
20130813 -9
Leave a comment:
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Re: Fetch_find problem ?
Sorry, the syntex of tbl.fetch_find is not using filter expression, but Matching_expression)
Extract from Documentation
==========================================
Record_Number as N = <TBL>.FETCH_FIND( Matching_Expression as A )
dim tbl_product as P
dim indx_1 as P
tbl_product = table.open("c:\data\product.dbf")
indx_1 = tbl_product.index_primary_put("id_index")
rec = tbl_product.fetch_find(inv_item->product_id)
if (rec > 0) then
on_hand = tbl_product.qty_stock
else
ui_msg_box("Record not found", "The closest match is record number " + abs(rec)")
end if
tbl_product.close()
Leave a comment:
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Re: Fetch_find problem ?
Fred,
from Help,If <TBL>.FETCH_FIND()is successful, the found record is retrieved and its Record_Number is returned. If no exact match is found, a negative number corresponding to the record number of the closest matching record is returned.
Leave a comment:
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Fetch_find problem ?
Dear Experts,
order by descending of dtos(x_date)
recno, x_date,
9, "08/11/2013"
451, "01/04/2013"
tbl.index_get("dtos_tag")
tbl.fetch_find(dtos('01/02/2013')) = -9 < ------ why the closest record is 9 ?
tbl.fetch_find(dtos('01/03/2013')) = -9 < ------
tbl.fetch_find(dtos('01/04/2013')) = 451
tbl.fetch_find(dtos('01/05/2013')) = -451
tbl.fetch_find(dtos('01/06/2013')) = -451
tbl.fetch_find(dtos('08/10/2013')) = -451
tbl.fetch_find(dtos('08/11/2013')) = 9
tbl.fetch_find(dtos('08/12/2013')) = -9
tbl.fetch_find(dtos('08/13/2013')) = -9
query.find() also got the same result
How to get record 451 if date is less than "01/04/2013" ?
ThanksLast edited by fredc; October 01, 2013, 02:16 AM.Tags: None
Leave a comment: