Data Types - a comprehensive guide

I am new to labview and have been trying to find a comprehensive guide to all the data types labview uses and how to convert between them

Hi,
you must read some PDF files from:
"YourLabVIEWDir\manuals\"
1. datastrg.pdf
This manual describes how LV stores all the possible data types and gives you a lot of info about data formats.
2. lvuser.pdf
General LV user manual. Here you can read a lot about LabVIEW.
Also what you may need is located in following palettes:
1. "Functions->Numeric->Conversion"
2. "Functions->Boolean" includes such functions like "Number to boolean array" and so on.
3. "Functions->String->String/Number Conversion"
4. "Functions->String->String/Array/Path Conversion"
5. "Functions->Array" and "Functions->Clucter" include functions which convert clusters to arrays and back.
6. "Functions->File I/O->Advanced File Functions" includes some string 20 path conversion function
s.
7. "Functions->Advanced->Data Manipulation" includes functions which allow you to change the interpretation of the data, for example they can extract bytes from words, or treat the byte array as a long string and so on.
Good luck.
Oleg Chutko.
5.

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Thanks,
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Hi,
I have been able to get rid of the problem posed in my earlier mail about assigning values from a field symbol to an internal table. Now its back to the same old problem.
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On view1, on click of the button, I have populated internal table I_RANGE2.
DATA: IT_RANGE2 TYPE TABLE OF ZTTRANGE.
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Hi All,
I want to reverse some of the SQL tables in Sunopsis to create the datastores. One column in these SQL tables has GUID data type and when i reverse this table, all other data being properly displayed but the reversed data store is not displaying data under the column.
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For some reason, this sounds like a technical question and not a comment or issue with the documentaiton.
Can you suggest a more appropriate place to ask your question?

What are the corresponding Data Types of some MDM Data Types

Hi Guys,
The MDM ABAP API involves creation of a DDIC structure in SRM. This structure should have the same fields with the MDM table fields. We would like to ask the corresponding ABAP Data Types for the following MDM Data Types.
MDM SRM
1. Look up (flat)
2. Look up (taxonomy)
3. Look up (heirarchy)
4. Look up (qualified flat look up)
Any significant inputs on this?
Thanks and regards,
RE

Hi,
Refer the below link. This is from the MDM Reference guide and contains the sample source code as well for almost all the things like creating repository, creating tables and fields etc. It would be helpful to you.
http://help.sap.com/saphelp_mdm550/helpdata/en/47/5fd3f7cbd75518e10000000a421138/frameset.htm
Regards,
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Table for dates in date-type in transaction

Hi,
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thanks and regards,
PD

Hi Prashant,
Use Table: BAD_APPOINTMENT
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New Effective CAL essay: How do I create an abstract data type in CAL?

How do I create an abstract data type in CAL? An abstract data type is one whose internal representation can be changed without needing to modify the source code of client modules that make use of that type. For software maintainability, it is a good idea to make a type that is subject to change or enhancement into an abstract data type. Another reason to create an abstract data type is to enforce invariants for values of the type that can only be ensured by using constructor functions (i.e. functions that return values of that type). In principle it is simple to create an abstract data type in CAL. For an algebraic data type, make the type constructor public and all data constructors private. For a foreign data type, make the type constructor public and the implementation scope private. If a scope qualifier is omitted, the scope is taken to be private. For example, the Map algebraic data type has the public type constructor Map and the data constructors Tip and Bin are each private, so it is an abstract data type. /** A map from keys (of type {@code k@}) to values (of type {@code a@}). */ data public Map k a = private Tip | private Bin size :: !Int key :: !k value :: a leftMap :: !(Map k a) rightMap :: !(Map k a); There are a number of invariants of this type: the size field represents the number of elements in the map represented by its Bin value. The keys in leftMap are all less than key, which in turn is less than all the keys in rightMap. In particular, non-empty Map values can only be created if the key parameter type is a member of the Ord type class. Values of the Map type can be created outside the Cal.Collections.Map module only by using constructor functions such as insert: insert :: Ord k => k -> a -> Map k a -> Map k a; public insert !key value !map = ... 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Having a private implementation scope means that the Color type can be changed to correspond to a different Java class, or indeed to be an algebraic type, without the risk of breaking client code. In all these three cases there are useful, and different, design reasons to adopt a private implementation scope: For RelativeDate, the Java implementation type int represents a coded Gregorian date value in the date scheme used by Crystal Reports. Not all int values correspond to valid dates, and the algorithm to map an int to a year/month/day equivalent is fairly complicated, taking into account things like Gregorian calendar reform. Thus, it is desirable to hide the implementation of this type. For StringNoCase, the implementation is more straightforward as a java.lang.String. The reason to adopt a private implementation scope is to ensure that all functions involving StringNoCase preserve the semantics of StringNoCase as representing a case-insensitive string value. 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For example, if an algebraic type is public, and all its data constructors are protected, then the data constructors can be accessed in the friend modules of the module in which the type is defined. Effectively this means that the implementation of the semantics of the type stretches over the module in which the type is defined, and all of its friend modules. These must all be checked if the implementation of the type is modified. Given the merits of abstract data types discussed above, it is perhaps surprising that most of the core types defined in the Prelude module are not abstract data types. For example: Boolean, Char, Int, Double, String, List, Maybe, Either, Ordering, JObject, JList, and all record and tuple types are non-abstract types. There are different reasons for this, depending on the particular type involved. 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Char, Int, Double, String, JObject and JList are foreign types where in fact part of the semantics of the type is that we want clients to know that the type is a foreign type. For example, we want clients to know that Prelude.Int is essentially the Java primitive unboxed int type, and has all the semantics you would expect of the Java int type i.e. this is quite different from RelativeDate which is using int as its implementation type in a very tactical way that we may choose to change. One can think of a public foreign type declaration with public implementation scope as simply introducing the Java type into the CAL namespace. One interesting point here is with CAL's naming convention for public foreign types. We prefix a type name by "J" (for "Java") for foreign types with public implementation type such that the underlying Java type is mutable. This is intended as mnemonic that the type is not a pure functional type and thus some caution needs to be taken when using it. 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(by calling Prelude.output, mutating, and then calling Prelude.input). The solution in this case is to not derive Inputable and Outputable instances, but rather to define a custom Inputable and Outputable instance that copies the underlying values.

Hi Pandra801,
When you create a the external content type, please try to add a filter based on your select statement.
http://arsalkhatri.wordpress.com/2012/01/07/external-list-with-bcs-search-filters-finders/
Or, try to create a stored procedure based on your select statement, then create ECT using the SQL stored procedure.
A step by step guide in designing BCS entities by using a SQL stored procedure
http://blogs.msdn.com/b/sharepointdev/archive/2011/02/10/173-a-step-by-step-guide-in-designing-bcs-entities-by-using-a-sql-stored-procedure.aspx
I hope this helps.
Thanks,
Wendy
Wendy Li
TechNet Community Support

How to configure oracle 8.1.6, 8.1.7 for recognizing float data type by ODBC

I know oracle recognizes float data type into the tables, and exists a parameter in the initialization parameters named NLS_NUMERIC_CHARACTER that permits to us change the presentation format. I did it, and into the server pc now it shows me '.' as a decimal point and ',' as a group separator. So, how can i do for the clients recognize the same float data type format. Which file i have to modify, or always i have to execute the instruction: alter session set NLS_NUMERIC_CHARACTERS = ".," in every client machine?
thanks
aldemar

According to the National Language Support Guide, available from <http://tahiti.oracle.com>, you should be able to change the value of NLS_NUMERIC_CHARACTERS in the init.ora file for the database and have that carry across to all sessions.
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Can we change the data type of a field based on the value of the field

HI Gurus,
My Requirement is as below -- Could you please guide me
in the Printable Adobe form -- for ex - as usual for dates fields in the Object Pallette the object type is a date/time field and for quantity/currency fields corresponding fields are taken
now in case the either the date, quantity or currency is initial in place of displaying 0.00 or empty date we need to display N/A (Not Applicable)
for this I would like to change the data type of the field
to put it simply --
we need to change the data type of date field from DATE&TIME to Char type to hold N/A or Quantity field to Char field to hold N/A
how can we realize this in SAP adobe forms
Thanks in Advace
Ramchander Rao.K

Hello Ramchander,
     You cannot change the data type of the field at run time in Adobe forms because the type of field you choose at the time of design level is associated with the data type itself.
If you want to achieve your requirement, then your main idea should be to set the data type as CHARACTER itself while designing the field in the adobe form itself. CHAR field will comfortably hold the value of Calculation/amount field, Currency field, Amount, Date, Time HHMMSS, Unit Accuracy, Currency key, Floating point number, Numeric text, Client, Language and many other data types.
After designing the field as TEXT field in Adobe form you have two options.
Option 1:
Select the Date field initially as type TEXT field or CHAR field in Adobe forms.
Suppose the name of the field is TEXTFIELD1, then write the Javascript code on this field in Initialize event as below.
if ( this.rawvalue == null )
     this.rawvalue = "N/A";
If the field is not blank, then it will show the date. Else it will show "N/A".
Option 2:
Select the Date field initially as type TEXT field or CHAR field in Adobe forms. Do the formatting part in ABAP itself. It will increase the performance. Avoid Javascript as much as possible.
Suppose you have a DATE variable l_dats of type DATS. Then take another variable l_date of type CHAR. Then write the below ABAP code.
MOVE l_dats TO l_date.
IF l_date IS INITIAL.
     l_date = 'N/A'.
ENDIF.
Bind the l_date to the TEXT field in the form.
Even in this case, if the field is not blank, then it will show the date. Else it will show "N/A".
But I will suggest you to use Option 2 of keeping the AMOUNT, QUANTITY, DATE, TIME fields etc as CHAR or TEXT fields in Adobe form and do the required formatting in ABAP itself.

How to insert data in a column with uniqueidefier data type

Guys,
I need insert data in a column with uniqueidefier data type, when i am trying to that getting error.
error message says: "Conversion failed when converting from a character string to uniqueidentifier."
I have data in table a col1,col2,col3,col4 - col3,col4 has datatype as varchar and i am updating table b columns col1,col2 with table a col3 and col4.
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Hi,
Not any String can be convert to uniqueidentifier.
1. you have to make sure u use a value which is fir to be uniqueidentifier
2. Use convert or cast in the insert query in order to convert the string into uniqueidentifier
insert X ... convert(uniqueidentifier, 'string which fit to be convert to uniqueidentifier')
Please post DDL+DML for more specific help
DDL = Data Definition Language. In our case that is, CREATE TABLE statements for your tables and other definitions that are needed to understand your tables structure and there for let us to test and reproduce the problem in our server. Without DDL no one
can execute any query.
How to get DDL: Right click on the table in Object Explorer and select script table as CREATE. Post these create table scripts here.
DML = data manipulation language is a family of queries used for manipulating the data it self like: inserting, deleting and updating data. In our case we need some sample data in order to check the query and get result, so we need some indert query for
sample data.
If you post a "create query" for the tables and "insert query" with some sample, then we could help you without Assuming/Guessing. There is a reason that DDL is generally asked for and expected when discussing query problems - it helps
to identify issues, clarify terminology and prevent incorrect assumptions. Sample data also provides a common point of reference for the discussion. A script that can be used to illustrate or reproduce the issue you have, will encourage others to help.
[Personal Site] [Blog] [Facebook]

Data Type issue in XMLA

Hi
In XMLA, I am getting problem in Source datatype for Measures.
Measuregroup getting data from 3 different partition,this 3 partition populating data from 3 different view.One view populating data from base table,remaining 2 we gave default value with cast
ex: Cast (0 as Bigint) as MeasureName.
In DSV for all 3 table data type is System.Int64, but while I am generating deployment script. I am getting Integer as Source datatype for Measure in XMLA.So what might be the problem.
pls guide me,

Can you post exact error you're getting?
Please Mark This As Answer if it solved your issue
Please Mark This As Helpful if it helps to solve your issue
Visakh
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Data Type for Process Flow... PB with Date?

I've got a problem by passing parameters in process flow.
I have a mapping with a parameter DATE_EXEC (data type : DATE) and a default value that is TO_DATE('20/01/2007' , 'dd/mm/yyyy') . My mapping is working good when i launch it.
I have a process flow which contains the mapping. This process has a parameter DATE_EXEC (data type : DATE). I bind the 2 DATE_EXEC. But when i launch my mapping the value is not recognized, I try with :
- TO_DATE('20/01/2007' , 'dd/mm/yyyy')
- 20/01/2007
- 2007.01.20
- 2007-01-20
My question is what are the data type in process flow? They are not ORACLE TYPE.
For example , a parameter in a mapping which is a VARCHAR2 must be input between quotes but if you bind it to a parameter of a process flow which is a STRING (not ORACLE Data type) , you must input it without quotes?
Anybody has some rules about that?
I apologize for my english, i'm a french people.

Here is some information on the literal quote or not quote query and what I think you need to do at the end, hope it helps. Not exactly intuitive...since the flow designer (you) have to know what is a PLSQL object and what is not.
1. Literal = FALSE
When Literal = FALSE is set then the value entered must be a valid PL/SQL expression which is evaluated at the Control Center e.g.
'Hello World!'
22 / 7
2. Literal = TRUE
When Literal = TRUE then the value is dependent on the the type of Activity. If the activity is a PL/SQL object i.e. Mapping or Transformation, then the value is PL/SQL snippet. The critical difference here is that the value is macro substituted into the call for the object. The format of the value is identical to that entered as default value in the Mapping editor. e.g.
'Hello World!'
sysdate()
If the activity type is not a PL/SQL object then the value is language independent. e.g.
Hello World
3.1427571
What you should try......
Check the map activity parameter in your process flow to see if literal is false (an expression), set it to false and then try using your TO_DATE('20/01/2007' , 'dd/mm/yyyy') expression, deploy your flow and execute. Alternatively the user guide defines the DATE type for flow with the format YYYY-MM-DD so you can have the parameter value as '2007-01-20' use literal equal to true and remember and quote your value.
Cheers
David

++Custom Serialization with Complex Data type (Nested Classes)

Hi,
We have a scenario wherein we need to write CUSTOM SERIALIZERS for complex datatypes like INVOICE & ORDER (INVOICE inturn has ADDRESS type among others, ORDER has ADDRESS type, a COLLECTION of type ORDERITEM each of which are Java Classes in themselves)
The example of Custom Serializer given in the SOA AS Dev Guide http://download.oracle.com/docs/cd/B31017_01/web.1013/b28975/custserial.htm#CFHHIBCA)
shows only a simple java type used for serialization and deserialization.
Can anyone please help us out by sharing any example depicting the CUSTOM SERIALIZERs for COMPLEX DATA TYPES?
Thanks in advance,
Pavan.

Hello,
Could you please post the code of your classes in the forum (at least the interfaces) ?
Regards
Tugdual Grall

RAW Data Type mapping to BI infoobject

Dear Experts,
We are trying to extract CRM data into BI, the Datasource have a field type 'RAW' . In BI which data type to consider for this field to info object mapping. Pls let me know.
I've taken infoobject of type CHAR with length 60, still getting error in transformations.
Thanks in advance.
HVR.

Hi,
I am trying to extract data from 0CRM_CLAIMS, GUID field
Thanks
HVR

Want to change data type CHAR32 to CHAR40 in cutomized function module(CRM)

Hi Friends,
I have a requirement to change the data type CHAR32 to char40 .
Pls guide me how to do it.do I need to change it directly or we have do anymore changes?
Thx in Adv.
Baba

Hello Baba,
In my opinion the length of a data field has little to do with the ITS and it's templates. You should be able to change the length for your function module and then the new length should work on the ITS if using the Webgui. If you have custom templates then maybe you will need to recreate the templates or modify the field length, but this is second to actually changing the datatype length in the R/3 system.
Edgar

Mapping SQL data types (especially SMALLINT) to Java classes

I want to know the reason for a certain pair of exceptions in JDBC�s mapping of SQL data types to Java classes.
Sun�s web site ( http://java.sun.com/j2se/1.4.2/docs/guide/jdbc/getstart/mapping.html ), Sybase�s site, and other sites contain mappings from SQL data types to Java primitive data types and/or Java classes. On that Sun web page, Section 9.9.1 maps mostly to Java primitive data types, and Section 9.9.3 maps mostly to Java classes. For the SQL data types that map to both primitive data types and classes, the class is typically the wrapper class of the primitive data type. For example, SQL�s DOUBLE data type maps to both the double primitive data type and its wrapper class (Double). However, Section 9.7 of that Sun web page says that there are exceptions for SQL�s TINYINT and SMALLINT. As expected, they map to the byte and short primitive data types, but they map to the Integer class, not the Byte and Short classes (which are the wrapper classes for byte and short). The web page does not state the reason for this pair of exceptions. It seems to me that SMALLINT data would either work for both short and Short or fail for both short and Short. I don�t see why it would work for short but fail for Short (as the web page implies).
Can anybody think of a reason for the pair of exceptions? Thanks.

ghs wrote:
1) If a DBMS deals with the short and byte primitive data types (as the various web pages imply that it does), then why would it not deal with the Short and Byte wrapper classes?As another guess, because conversions get a little weird in java. Or at least they did in the past. As I recall (with not a lot of clarity) it is possible to do something like pass a perfectly valid string value into a short and get an exception. Whereas using Integer and then converting to Short works.
Keep in mind that these are guesses.
3) What I really want to know is this: If I use wrapper classes of Short and Byte (instead of Integer), what will be the harmful consequences (IF ANY)? So far, I have done some trivial testing with a Short for a SMALLINT column (I have not yet tried any TINYINT columns), and it seems to be working.I considered it risky to not test all target databases and drivers.
Obviously testing will reveal problems.
If you don't want to test then you might want to stick with integers.

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