I have been using an IsEmpty function that I got from this site.
Case (IsEmpty(Field1 & Field2);Field3;IsEmpty(Field1);Field2;Field1)
However, I am now pulling from 5 fields instead of just 3 and I am trying to sort by date of visit.
My database deals with client and pregnancy tests and the fields I'm pulling from are from their exit intention after visit 1, visit 2,...visit 5.
Each visit has a different title (PT, RT, CC...etc). If the come for visit PT, US, FU and I want to pull the intention from FU or if they come in the order of PT,FU, US I'd like to pull the intention from US.
Does anyone have any advice on how to do this?
I think the easiest method is simply to rewrite your function as follows, this should be easier to maintain than you current code:
Case(
not isEmpty(Field1); Field1;
not isEmpty(Field2); Field2;
not isEmpty(Field3); Field3;
not isEmpty(Field4); Field4;
Field5
)
I don't think there is a built-in way to do this type of calculation in Filemaker, if there were many more than variables you could consider writing a custom function looping through these fields until there is a non-empty entry... (provided you had Filemaker Advanced).
Related
I need to automatically generate a 12 character value for my Business Key. Without any user interaction.
8 character -> Today Date (yyyymmdd or ddmmyyyy).
+
4 character -> Sequential Number (0001,0002,0003).
The Sequential Number must reset on each new day.
Is it possible to do this in Microsoft Access 2010+ without any coding involved?
Since you are using Access 2010+ the best way to accomplish your goal would be to use a Before Change data macro like this
To create the Before Change macro, click the "Before Change" button on the "Table" tab of the ribbon when the table is open in Datasheet View:
For more details on Data Macros see
Create a data macro
Good question, thanks for the challenge!
After some search, it seems it's possible to do that.
You can prefix the AutoNuber value by processing like the explanation available here: http://www.databasedev.co.uk/add_prefix.html
You can try to specify in the format of the field a format(now(),"ddmmyyyy").
Check this page for more informations, another user seems to have the same problem and got a solution: http://bytes.com/topic/access/answers/695188-custom-made-autonumber-show-todays-date
Hope it's helping you!
I've searched around the web for a way to achieve this, and found multiple solutions. Most of them had messy code, all of them drawbacks. Some ideas involved setting default values of all the db fields based on a record. Others worked by appending multiple SQLFORMs, which resulted in differences in indentation on the page (because it's 2 HTML tables in 1 form).
I'm looking for a compact and elegant way of providing a read-only representation of a record based on a join on two tables. Surely there must be some simple way to achieve this, right? The Web2py book only contains an example of an insert-form. It's this kind of neat solution I am looking for.
In the future I will probably need multi-table forms that provide update functionality as well, but for now I'll be happy if I can get a simple read-only form for a record.
I would greatly appreciate any suggestions.
This seems to work for me:
def test():
fields = [db.tableA[field] for field in db.tableA.keys() \
if type(db.tableA[field]) == type(db.tableA.some_field)]
fields += [db.tableB[field] for field in db.tableB.keys() \
if type(db.tableB[field]) == type(db.tableB.some_field)]
ff = []
for field in fields:
ff.append(Field(field.name, field.type))
form = SQLFORM.factory(*ff, readonly=True)
return dict(form=form)
You could add in field.required, field.requires validtaors, etc. And also, since you're using SQLFORM.factory, you should be able to validate it and to updates/inserts. Just make sure that the form you are building using this method contains all of the necessary information to validate the form for update -- I believe you can add them easily to the Field instantiation above.
EDIT: Oh yeah, and you need to get the values of the record in question to pre-populate the form based on a record id (after form is defined)... also.. I just realized that instead of those list comprehensions, you can just use SQLFORM.factory and provide the two tables:
def test():
form = SQLFORM.factory(db.tableA, db.tableB, readonly=True)
record = ... (query for your record, probably based on an id in request.args(0))
for field in record.keys():
if (*test if this really is a field*):
form.vars[field] = record[field]
return dict(form=form)
Some tweaking will be required since I only provided psuedo-code for the pre-population... but look at: http://web2py.com/books/default/chapter/29/7#Pre-populating-the-form and the SQLFORM/SQLFORM.factory sections.
I am using code similar to this Support / KB article to return multiple recordsets to my C# program.
But I don't want C# code to be dependant on the physical sequence of the recordsets returned, in order to do it's job.
So my question is, "Is there a way to determine which set of records from a multiplerecordset resultset am I currently processing?"
I know I could probably decipher this indirectly by looking for a unique column name or something per resultset, but I think/hope there is a better way.
P.S. I am using Visual Studio 2008 Pro & SQL Server 2008 Express Edition.
No, because the SqlDataReader is forward only. As far as I know, the best you can do is open the reader with KeyInfo and inspect the schema data table created with the reader's GetSchemaTable method (or just inspect the fields, which is easier, but less reliable).
I spent a couple of days on this. I ended up just living with the physical order dependency. I heavily commented both the code method and the stored procedure with !!!IMPORTANT!!!, and included an #If...#End If to output the result sets when needed to validate the stored procedure output.
The following code snippet may help you.
Helpful Code
Dim fContainsNextResult As Boolean
Dim oReader As DbDataReader = Nothing
oReader = Me.SelectCommand.ExecuteReader(CommandBehavior.CloseConnection Or CommandBehavior.KeyInfo)
#If DEBUG_ignore Then
'load method of data table internally advances to the next result set
'therefore, must check to see if reader is closed instead of calling next result
Do
Dim oTable As New DataTable("Table")
oTable.Load(oReader)
oTable.WriteXml("C:\" + Environment.TickCount.ToString + ".xml")
oTable.Dispose()
Loop While oReader.IsClosed = False
'must re-open the connection
Me.SelectCommand.Connection.Open()
'reload data reader
oReader = Me.SelectCommand.ExecuteReader(CommandBehavior.CloseConnection Or CommandBehavior.KeyInfo)
#End If
Do
Dim oSchemaTable As DataTable = oReader.GetSchemaTable
'!!!IMPORTANT!!! PopulateTable expects the result sets in a specific order
' Therefore, if you suddenly start getting exceptions that only a novice would make
' the stored procedure has been changed!
PopulateTable(oReader, oDatabaseTable, _includeHiddenFields)
fContainsNextResult = oReader.NextResult
Loop While fContainsNextResult
Because you're explicitly stating in which order to execute the SQL statements the results will appear in that same order. In any case if you want to programmatically determine which recordset you're processing you still have to identify some columns in the result.
I have been trying to work out what is the best way to search for gather all of the documents in a database that have a certain date.
Originally I was trying to use FTsearch or search to move through a document collection, but I changed over to processing a view and associated documents.
My first question is what is the easiest way to spin through a set of documents and find if a date stored in the documents is greater than or less than a specified date?
So, to continue working I implemented the following code.
If (doc.creationDate(0) > cdat(parm1))
And (doc.creationDate(0) < CDat(parm2)) then
...
end if
but the results are off
Included! Date:3/12/10 11:07:08 P1:3/1/10 P2: 3/5/10
Included! Date:3/13/10 9:15:09 P1:3/1/10 P2: 3/5/10
Included! Date:3/17/10 16:22:07P1:3/1/10 P2: 3/5/10
You can see that the date stored in the doc is not between P1 and P2. BUT! it does limit the documents with a date less than P1 correctly. So I won't get a result for a document with a date less than 3/1/10
If there isn't a better way than the if statement, can someone help me understand why the two examples from above are included?
Hi you can try something like this:
searchStr = {(Form = "yourForm" & ((#Created > [} & parm1 & {]) & (#Created < [} & parm2 & {])))}
Set docCollection = currentDB.Search(searchStr, Nothing, 0)
If(docCollection.Count > 0)Then
'do your stuff with the collection returned
End If
Carlos' response is pretty good.
If you have a lot of documents, you can also use a full-text search which will is much faster. The method call is very similar (db.ftsearch(), online help can be found here).
The standard DB Search method operates in the same way as view index updates, so it can get a little slow if you have thousands of documents to search through.
Just make sure you enable full text index for your database in the database properties, (last tab).
Syntax on this approach is very similar, this link provides a good reference for FTsearch. Using Carlos' syntax, you can substitute FTSearch and searchStr assignment for faster searching.
In Crystal reports, you can define default values for the report parameters.
For example, I might have a date range and set a default start of 12/01/2008 and a default end of 12/31/2008.
Is it possible to modify these defaults at runtime? For example:
1 - Default to the first and last days of the current month?
2 - Default to the first and last days of a proprietary company fiscal calendar? (i.e., look it up in a database)
3 - First & Last days of the current year?
You get the point. Is this possible? I'd even be open to a solution that involved running an external application to reach into the reports and modify them, if anyone knows how to do that.
Edit:
To answer the question posed by Philippe Grondier, most of these reports are run from inside an application. I was hoping for something simpler than manipulating the crystal object at runtime; I have my hands full right now with figuring out other parts of that API. I might take a look in the future, though.
Are you planning to run your crystal report from the crystal reports interface or as an add-in embedded in another program (you can for example use the Crystal Reports ActiveX Designer Runtime Support - craxdrt.dll - in VB code) ? In this last case, it is possible to manipulate every object of the report before launching it. Objects such as parameters can then be updated according to your needs.
As a simple example of such runtime update, my report printing routine will allways check if there is a field named "printedBy" in the report. In case this field is found, its value will be settled to the the domain name of the user that requests the report and will be printed out.
At an higher level, you can even reshape the report SQL string to add specific filters that can be inherited from your code. By doing so you might not even need parameters anymore: let your code add the filtering values 'on the fly'
EDIT: some code examples:
(m_rapport is a CRAXDRT.report object, ActiveSession is my current session object)
If m_rapport.ParameterFields.Count > 0 Then
For i = 1 To m_rapport.ParameterFields.Count
If m_rapport.ParameterFields(i).Name = "{?PUB_DateDebutPeriode}" Then
m_rapport.ParameterFields(i).AddCurrentValue CDate(DateValue(sessionActive.dateDebutPeriode))
End If
If m_rapport.ParameterFields(i).Name = "{?PUB_DateFinPeriode}" Then
m_rapport.ParameterFields(i).AddCurrentValue CDate(DateValue(sessionActive.dateFinPeriode))
End If
If m_rapport.ParameterFields(i).Name = "{?PUB_id_Personne}" Then
m_rapport.ParameterFields(i).AddCurrentValue StringFromGUID(clientActif.id_Personne)
End If
Next i
Endif
I also have another function to change report's datasource at runtime, so that reports can be executed on different servers/locations.
Read my posting Crystal Reports: Named-Date-Range Parameters. Maybe you'll be able to leverage this technique for your purposes.