I encounter some problems that i don't understand with APEX.... Well, let's be specific.
I ve got a select element retrieving a top 50 of most liked url (P11_URL). This is populate by a table view, TOp_Domains.
I create an element called "Context" that have to print all text containing the URL selected by the user from the element select. Those Texts come from another table, let's say "twitter_post".
I create a dynamic action (show only) with this sql/statement:
Select TXT, NB_RT, RANK
from myschema.twitter_post
where TXT like '%:P11_URL%'
group by TXT, NB_RT, RANK
.... and it doesn't work... I think APEX don't like like clause... But i don't know how to do. Let's keep in min an url could have been shared by multiple Tweets, that's why this element "context" is important for me.
I tried to bypass the problem by building a State (in french Statique) and a dynamic action that will refresh the state but it doesn't work neither... bouhououououou
TriX
Right click on the 'P11_URL' and create DA. Event :change, Item:P11_URL. As the true action of the DA, select 'Set Value'. Write your query in the sql stmt area. In the page items to submit, select 'P11_URL' . In the 'Affected Items': select 'Context'.
Query should be :
Select TXT, NB_RT, RANK
from myschema.twitter_post
where TXT like '%' || :P11_URL || '%'
group by TXT, NB_RT, RANK
So
Thanks to #Madona... Their example made me realised my mistake. I wrote the answer here for futher help if somebody encouter the same porblem.
A list select element get as arguments a display value (the one you want to be shown in your screen.... if you want so....^^ ) and a return value (in order, I think to linked dynamic actions). So to solved my problem i had to shape my sql statement as:
select hashtags d, hastags r
from my table
order by 1
[let s say that now in Apex it s an object called P1_HASHTAGS]
First step problem solving.
In fact, the ranking as second value, as i put into my sql statement was making some mitsakens into my 'Where like' clause search... well... Newbie am i!
Second step was to correctly formate the sql statement receiving the datas from my select lov (P1_HASHTAGS) into my interactive report. As shown here:
Select Id, hashtags
from my table
where txt like '%'||:P1_HASHTAGS||'%'
And it works!
Thank you Madona your example helped me figure my mistakes!
Related
I have two queries which are almost identical. The only difference is the format of the fields being joined. One works, the other doesn't.
The query which JOINs two Integer fields works perfectly.
The query which JOINs two Long Text fields produces the following error:
"Cannot join on Memo, OLE, or Hyperlink Object (alarmlogwithstring2.[Tag_Value]=ECLString.[Tag_Value])."
Functional Query:
SELECT alarmlogwithdescs.TableIndex, alarmlogwithdescs.Date_Stamp, alarmlogwithdescs.Time_Stamp, alarmlogwithdescs.Tag_Name, alarmlogwithdescs.Tag_Value, ErrorCodeLookup.ErrorDescription
FROM ErrorCodeLookup INNER JOIN alarmlogwithdescs ON ErrorCodeLookup.[Tag_Value] = alarmlogwithdescs.[Tag_Value]
ORDER BY alarmlogwithdescs.TableIndex;
Nonfunctional Query:
SELECT alarmlogwithstring2.TableIndex, alarmlogwithstring2.Date_Stamp, alarmlogwithstring2.Time_Stamp, alarmlogwithstring2.Tag_Value, ECLString.ErrorDescription
FROM alarmlogwithstring2 INNER JOIN ECLString ON alarmlogwithstring2.[Tag_Value] = ECLString.[Tag_Value]
ORDER BY alarmlogwithstring2.TableIndex;
What I've Tried:
1.) I swapped the table following "FROM" to be ECLString with all necessary changes that should follow. (i.e. Then, after INNER JOIN I changed ECLString to be alarmlogwithstring2, etc...) This makes the two queries more identical, but shouldn't have an effect on the outcome. I did the same for the functional query just to be sure. The functional one still worked and the nonfunctional one still does not...
2.) I tried making my lookup table's Tag_Value field Short Text while keeping the actual data table's Tag_Value field Long Text. No effect.
3.) I tried changing the JOIN type when creating the relationship between the two tables. No effect.
4.) Changed alarmlogwithstring2.[Tag_Value]=ECLString.[Tag_Value]
to CAST(alarmlogwithstring2.[Tag_Value] AS varchar(max)) = CAST(ECLString.[Tag_Value] AS varchar(max)) and get the following error:
"Syntax error (missing operator) in query expression CAST(alarmlogwithstring2.[Tag_Value] AS varchar(max)) = CAST(ECLString.[Tag_Value] AS varchar(max))."
For whatever reason, after clicking "Ok" to close the error message the comma following SELECT alarmlogwithstring2.TableIndex, is highlighted, suggesting the missing operator is there. Okay?
Any help would be greatly appreciated. Thank you for your time!
Got it! Works for my situation, at least. Any other method for doing this would still be appreciated.
This works for me because my Tag_Value field contains text such as "Error0, Error1, Error2," etc...
So, I used the following code:
SELECT alarmlogwithstring2.TableIndex, alarmlogwithstring2.Date_Stamp, alarmlogwithstring2.Time_Stamp, alarmlogwithstring2.Tag_Value, ECLString.ErrorDescription
FROM alarmlogwithstring2 INNER JOIN ECLString ON Right( alarmlogwithstring2.[Tag_Value] , 1) = Right(ECLString.[Tag_Value], 1)
ORDER BY alarmlogwithstring2.TableIndex;
This works because of the integer on the end of my Tag_Value text. Using the Right(string,length) function causes only the integers within each value to be compared as they're all on the right-side of the value.
If your situation is similar to mine, then the code above is fine; however, if your number of error codes (or whatever) gets into the double digits, be sure to reflect this in the fields of both tables. (i.e. Make Error0 => Error00, make Error1 => Error01, etc...) within both tables and use Right(string,2) instead of Right(string,1). [Seems obvious, but may not be for everyone.]
However, this will NOT always be the case for me and everyone else. Someone may have pure text, for example. Thus, again, if you know of another, more general, solution, please, do let me know and I'll make your answer the answer for this question.
Thanks!
Got it. See below for general solution. It uses StrComp(string1,string2)=0 to match strings.
SELECT alarmlogwithstring2.TableIndex, alarmlogwithstring2.Date_Stamp, alarmlogwithstring2.Time_Stamp, alarmlogwithstring2.Tag_Name, alarmlogwithstring2.Tag_Value, ECLString.ErrorDescription
FROM alarmlogwithstring2 INNER JOIN ECLString ON StrComp(alarmlogwithstring2.[Tag_Value], ECLString.[Tag_Value]) = 0
ORDER BY alarmlogwithstring2.TableIndex;
I have a textbox named "Search" and code that filters a customer out by name. I also want to display the whole table if the textbox is empty but don't know how to do it.
NOTE : I am using Microsoft Access.
Here is my code :
SELECT * FROM Customers
WHERE Forms.[Form1].[Text4] = Forms.[Form1].[Text4] AND FirstName=Forms.[Form1].[Text4];
Thank you for any help.
You need validate if text is empty or filter to another rules, this can be something like this:
SELECT * FROM Customers WHERE Forms.[Form1].[Text4] IS NULL OR FirstName = Forms.[Form1].[Text4];
My example list:
How can I store the results in the Input Field "Your Choose" as comma-separate values (in this example: ALABAMA, ARIZONA).
Would APEX_UTIL.TABLE_TO_STRING be suitable?
You need to be more specific while asking questions.
I assume that you have page with
item PX_MULTISELECT.
process Before Header that loads data from DB to the input PX_MULTISELECT
And basing on this I assume you are asking how to get data separated with : from DB.
In process that loads data you should fetch data from db using listagg function
begin
select
listagg(COLUMN, ':') within group (order by 1)
into
:PX_MULTISELECT
from
...
where
...
end;
LISTAGG documentation
I'm looking for a db2 function that does a text contain search. At present I am running the following query against the data below....
SELECT distinct
s.search_id,
s.search_heading,
s.search_url
FROM repman.search s, repman.search_tags st
WHERE s.search_id = st.search_id
AND ( UPPER(s.search_heading) LIKE (cast('%REPORT%' AS VARGRAPHIC(32)))
OR (UPPER(st.search_tag) LIKE cast('%REPORT%' AS VARGRAPHIC(32)))
)
ORDER BY s.search_heading;
Which returns...
But if I change the search text to %REPORTS% rather than %REPORT% (which I need to do) the like search does not work and I get zero results.
I read a link that used a function named CONTAINS like below but when trying to use the function I get an error.
SELECT distinct
s.search_id,
s.search_heading,
s.search_url
FROM repman.search s, repman.search_tags st
WHERE s.search_id = st.search_id
AND CONTAINS(s.search_heading, 'REPORTS') = 1
Has anynoe got any suggestions? I'm on db2 version DB2/LINUXPPC 9.1.6.
Thanks
In order to look for a pattern in a string, you can use Regular Expressions. They are built-in DB2 with xQuery since DB2 v9. There are also other ways to do that. I wrote an article in my blog (in Spanish that you can translate) about Regular Expressions in DB2.
xmlcast(xmlquery('fn:matches(\$TEXT,''^[A-Za-z 0-9]*$'')')
SQL query in Ms-Access
INSERT INTO tblTmpEventLog( TrackingNumber, PartNumber, PartNumberChgLvl,
EnteredBy, EventTypeSelected, EventDate )
SELECT DISTINCT tblRevRelLog_Detail.RevRelTrackingNumber,
tblRevRelLog_Detail.PartNumber, tblRevRelLog_Detail.ChangeLevel,
[Forms]![frmEventLog_Input]![EnteredBy] AS EnteredBy,
[Forms]![frmEventLog_Input]![EventTypeSelected] AS EventTypeSelected,
CDate([Forms]![frmEventLog_Input]![EventDate]) AS EventDate
FROM tblRevRelLog_Detail LEFT JOIN tblEventLog
ON (tblEventLog.PartNumber = tblRevRelLog_Detail.PartNumber)
AND (tblEventLog.PartNumberChgLvl = tblRevRelLog_Detail.ChangeLevel)
WHERE ((([tblRevRelLog_Detail]![RevRelTrackingNumber]) =
[Forms]![frmEventLog_Input]![TrackingNumber]))
AND ((tblEventLog.PartNumber) NOT IN
(SELECT tblEventLog.PartNumber FROM tblEventLog
WHERE tblEventLog.EventTypeSelected = 'pn REMOVED From Wrapper'
AND tblEventLog.TrackingNumber =
tblRevRelLog_Detail.RevRelTrackingNumber
AND tblEventLog.PartNumber = tblRevRelLog_Detail.PartNumber
AND tblEventLog.PartNumberChgLvl =
tblRevRelLog_Detail.ChangeLevel
));
DISTINCT keyword for EnteredBy, EventTypeSelected is not working..I mean, data for these columns is not displaying when I use DISTINCT keyword.
EVENTDATE is working fine, but I do not understand why is it not displaying for EneteredBy and EventTypeSelected columns.
Can anyone tell me how to handle this?
It may be that the query can't interpret properly from the form directly as the final data type. However in your date field, you are wrapping it in a function CDATE( ... ). So, the SQL engine knows the result type. I would suggest doing the same for the other fields. Ex: doing a CAST ( ...your form control... as DateTime ) as OtherColumn, etc... I THINK Access allows casting, but not positive. Otherwise, pre-pull the form value into a declared data type variable and use THAT variable in the query AS OtherColumn as you are doing.
Additionally to what #Jack mentioned, you can always go back to your account, look at your historical question, and click on whatever answers actually helped / solve your problems. Some questions never do get answers and that's ok, just give credit to those that DO help.
I have found in the past (I don't remember which old version of Access this was) that if you set the value of a form control in VBA, and then use that control in a query, the query will not see the value you set in VBA. If the user edits the control normally, the query sees the expected value. Perhaps that's what happened here.
To work around that, you can declare a VBA function that returns the desired value. For example, instead of this:
SELECT ..., Forms!MainForm!TextEntry AS TextEntry, ... FROM ...
use this:
SELECT ..., GetTextEntry() AS TextEntry, ... FROM ...
along with this:
Public Function TextEntry() As Variant
TextEntry = Forms!MainForm!TextEntry
End Function