About string data type

Hi
Maximum number of characters that a string data type accepts in Java.
Thanks..

The next may give a rough test.
public static void main(String[] args) throws Exception{
int factor= Integer.parseInt(args[0]);
char[] data = new char[Integer.MAX_VALUE/factor];// note: integer division
for(int k=0;k<data.length;k++) data[k]=(char)0x30;
String s=new String(data);
System.out.println(Integer.toString(s.length()));
}

Similar Messages

Minus date in string data type

Hi all,
i having one table in database that used to store the borrow_date and return_date, the date is in this format 06/12/2008, when i retrieve the date from the database, and i pass it into String data type, for example as follows:
private String borrow_date = 05/12/2008;
private String return_date = 10/12/2008;
if for example student A return the book on 15/12/2008, which is after the return_date in database, then i want to minus is 15/12/2008 with 10/12/2008, so that i can get the int value of 5 days. Because i want to use this integer 5 for late penalty. One day charge for 20 cent.
e.g: String borrow_date - String return_date = int total_days;
Now my problem is this, i dont know how to use string data type minus with string data type to get the integer type.
I had tried for many methods already, still cannot get it, i can get the total days in int data type if the date is in Date or Calendar data type. The problem now is the date is in String data type. Any idea from you? :)
Regards,
poh_cc

poh_cc wrote:
because in my case, i have to use string data type :)Thinking about this again, it really is stupid. You say you are even storing the dates in the database as Strings and not Dates. It can only lead to a world of hurt.

Dynamic structure of "string" data type. Please help.

ABAPers,
I am calling cl_alv_table_create=>create_dynamic_table method to dynamically create a structure. The input structure definition is as follows:
data: xfc type lvc_s_fcat.
data: ifc type lvc_t_fcat.
* define Fld1
clear xfc.
xfc-fieldname = 'Fld1'.
xfc-datatype = 'string'.
append xfc to ifc.
* define Fld2
clear xfc.
xfc-fieldname = 'Fld2'.
xfc-datatype = 'string'.
append xfc to ifc.
Although the call to create_dynamic_table does not throw any exceptions, it appears Fld1 and Fld2 are not of "string" data type. I don't know of a way to see what type they are. However, they do have a length limit of 10 characters.
After some experimenting, it turns out that the method simply ignores "datatype" value if it doesn't understand it and creates the field with some default data type.
I would appreciate it if someone can show me how to create fields of "string" data type.
Thank you in advance for your help.
Pradeep

That's right, use STRG as the datatype. Please see the example program.
report zrich_0003.
type-pools: slis.
data: new_table type ref to data,
      new_line type ref to data.
data: xfc type lvc_s_fcat,
       ifc type lvc_t_fcat.
field-symbols: <dyn_table> type standard table,
               <dyn_wa>,
               <fs>.
start-of-selection.
clear xfc.
xfc-fieldname = 'Field1' .
xfc-datatype = 'STRG'.
append xfc to ifc .
clear xfc.
xfc-fieldname = 'Field2' .
xfc-datatype = 'STRG'.
append xfc to ifc .
* Create dynamic internal table and assign to FS
call method cl_alv_table_create=>create_dynamic_table
    exporting
      it_fieldcatalog = ifc
    importing
      ep_table        = new_table.
assign new_table->* to <dyn_table>.
* Create dynamic work area and assign to FS
create data new_line like line of <dyn_table>.
assign new_line->* to <dyn_wa>.
assign component 1 of structure <dyn_wa> to <fs>.
<fs> = 'This is string 1'.
assign component 2 of structure <dyn_wa> to <fs>.
<fs> = 'This is string 2'.
append <dyn_wa> to <dyn_table>.
* Write the values of internal table.
loop at <dyn_table> into <dyn_wa>.
    do.
      assign component sy-index of structure <dyn_wa> to <fs>.
      if sy-subrc <> 0.
        exit.
      endif.
      write:/ <fs>.
    enddo.
endloop.
REgards,
Rich Heilman

Building a table with a string data type

I am using the Build Table function and I would like to be able to label my columns on the first iteration with a string data type, which doesn't seem to be an acceptable signal for the Build Table function. However, the express table is located under "text indicators" on the front panel, so it seems like there should be a way to do this..

Ah, the "Build Table" Express VI. I hate Express VIs.
That Express VI is nothing more than a really complicated way of creating a 2D array of strings. The Express VI has no inputs for the row and column headers, so you need to add them in yourself. The same would be true for a regular table control/indicator. Here's what you need to do:
Right-click on the table indicator and select Visible Items -> Column Headers.
Right-click on the table indicator and select Create -> Property Node -> Column Header Strings[]. LabVIEW will attach a property node to the cursor and switch to the block diagram. Plop down the property node on the block diagram.
Right-click on the property node on the block diagram and select "Change All to Write".
Right-click on the property node and select "Create -> Constant". This will give you an array of strings, and you can enter the column headers in each array element.
Wire the array to the property node.
Connect the property node to the Build Table Express VI using the error clusters.
Message Edited by smercurio_fc on 07-02-2008 09:25 AM
Attachments:
Example_VI_BD6.png ‏3 KB

SSIS Package : While Extracting Sharepoint Lookup column, getting error 'Cannnot convert between unicode and non-unicode string data types'

Hello,
I am working on one project and there is need to extract Sharepoint list data and import them to SQL Server table. I have few lookup columns in the list.
Steps in my Data Flow :
Sharepoint List Source
Derived Column
its formula : SUBSTRING([BusinessUnit],FINDSTRING([BusinessUnit],"#",1)+1,LEN([BusinessUnit])-FINDSTRING([BusinessUnit],"#",1))
Data Conversion
OLE DB Destination
But I am getting the error of not converting between unicode and non-unicode string data types.
I am not sure what I am missing here.
In Data Conversion, what should be the Data Type for the Look up column?
Please suggest here.
Thank you,
Mittal.

You have a data conversion transformation. Now, in the destination are you assigning the results of the derived column transformation or the data conversion transformation. To avoid this error you need use the data conversion output.
You can eliminate the need for the data conversion with the following in the derived column (creating a new column):
(DT_STR,100,1252)(SUBSTRING([BusinessUnit],FINDSTRING([BusinessUnit],"#",1)+1,LEN([BusinessUnit])-FINDSTRING([BusinessUnit],"#",1)))
The 100 is the length and 1252 is the code page (I almost always use 1252) for interpreting the string.
Russel Loski, MCT, MCSE Data Platform/Business Intelligence. Twitter: @sqlmovers; blog: www.sqlmovers.com

Column "A" cannot convert between unicode and non-unicode string data types

I am following the SSIS overview video-
https://secure.cbtnuggets.com/it-training-videos/series/microsoft-sql-server-2008-business-development/6143?autostart=true
I have a flat file that i want to import the contents onto a SQL database.
I created a Dataflow task, source file and oledb destination.
I am getting the folliwung error -
"column "A" cannot convert between unicode and non-unicode string data types"
in the origin file the data type is coming as string[DT_STR] and in the destination object it is coming as "Unicode string [DT_WSTR]"
I used a data conversion object in between, dosent works very well
Please help what to do

I see this often.
Right Click on FlatFileSource --> Show Advanced Editor --> 'Input and Output Properties' tab --> Expand 'Flat File Source Output' --> Expand 'Output Columns' --> Select your field and set the datatype to DT_WSTR.
Let me know if you still have issues.
Thank You,
Jay

Cannot convert between unicode and non-unicode string data types.

I'm trying to copy the data from 21 tables in a SQL 2005 database to a MS Access database using SSIS. Before converting the SQL database from 2000 to 2005 we had this process set up as a DTS package that ran every month for years with no problem. The only way I can get it to work now is to delete all of the tables from the Access DB and have SSIS create new tables each time. But when I try to create an SSIS package using the SSIS Import and Export Wizard to copy the SQL 2005 data to the same tables that SSIS itself created in Access I get the "cannot convert between unicode and non-unicode string data types" error message. The first few columns I hit this problem on were created by SSIS as the Memo datatype in Access and when I changed them to Text in Access they started to work. The column I'm stuck on now is defined as Text in the SQL 2005 DB and in Access, but it still gives me the "cannot convert" error.

I was getting same error while tranfering data from SQL 2005 to Excel , but using following method i was able to tranfer data. Hopefully it may also help you.
1) Using Data Conversion transformation
data types you need to select is DT_WSTR (unicode in terms of SQL: 2005)
2) derived coloumn transformation
expression you need to use is :
(DT_WSTR, 20) (note : 20 can be replace by your character size)
Note:
Above teo method create replica of your esting coloumn (default name will be copy of <coloumn name>).
while mapping data do not map actual coloumn to the destination but select the coloumn that were created by any of above data transformer (replicated coloumn).

How to fix "cannot convert between unicode and non-unicode string data types" :/

Environment: SQL Server 2008 R2
Introduction:Staging_table is a table where data is being stored from source file. Individual and ind_subject_scores are destination tables.
Purpose: To load the data from a source file .csv while SSIS define table fields with 50 varchar, I can still transfer the data to the entity table/ destination and keeping the table definition.
I'm getting validation error "Cannot convert between a unicode and a non-unicode string data types" for all the columns.
Please help

Hi ,
NVARCHAR = DT_WSTR
VARCHAR = DT_STR
Try below links:
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/ed1caf36-7a62-44c8-9b67-127cb4a7b747/error-on-package-can-not-convert-from-unicode-to-non-unicode-string-type?forum=sqlintegrationservices
http://social.msdn.microsoft.com/Forums/en-US/eb0d1519-4be3-427d-bd30-ae4004ea9e8d/data-conversion-error-how-to-fix-this
http://technet.microsoft.com/en-us/library/aa337316(v=sql.105).aspx
http://social.technet.microsoft.com/wiki/contents/articles/19612.ssis-import-excel-to-table-cannot-convert-between-unicode-and-non-unicode-string-data-types.aspx
sathya - www.allaboutmssql.com ** Mark as answered if my post solved your problem and Vote as helpful if my post was useful **.

Unicode and non-unicode string data types Issue with 2008 SSIS Package

Hi All,
I am converting a 2005 SSIS Package to 2008. I have a task which has SQL Server as the source and Oracle as the destination. I copy the data from a SQL server view with a field nvarchar(10) to a field of a oracle table varchar(10). The package executes fine
on my local when i use the data transformation task to convert to DT_STR. But when I deploy the dtsx file on the server and try to run from an SQL Job Agent it gives me the unicode and non-unicode string data types error for the field. I have checked the registry
settings and its the same in my local and the server. Tried both the data conversion task and Derived Column task but with no luck. Pls suggest me what changes are required in my package to run it from the SQL Agent Job.
Thanks.

What is Unicode and non Unicode data formats
Unicode :
A Unicode character takes more bytes to store the data in the database. As we all know, many global industries wants to increase their business worldwide and grow at the same time, they would want to widen their business by providing
services to the customers worldwide by supporting different languages like Chinese, Japanese, Korean and Arabic. Many websites these days are supporting international languages to do their business and to attract more and more customers and that makes life
easier for both the parties.
To store the customer data into the database the database must support a mechanism to store the international characters, storing these characters is not easy, and many database vendors have to revised their strategies and come
up with new mechanisms to support or to store these international characters in the database. Some of the big vendors like Oracle, Microsoft, IBM and other database vendors started providing the international character support so that the data can be stored
and retrieved accordingly to avoid any hiccups while doing business with the international customers.
The difference in storing character data between Unicode and non-Unicode depends on whether non-Unicode data is stored by using double-byte character sets. All non-East Asian languages and the Thai language store non-Unicode characters
in single bytes. Therefore, storing these languages as Unicode uses two times the space that is used specifying a non-Unicode code page. On the other hand, the non-Unicode code pages of many other Asian languages specify character storage in double-byte character
sets (DBCS). Therefore, for these languages, there is almost no difference in storage between non-Unicode and Unicode.
Encoding Formats:
Some of the common encoding formats for Unicode are UCS-2, UTF-8, UTF-16, UTF-32 have been made available by database vendors to their customers. For SQL Server 7.0 and higher versions Microsoft uses the encoding format UCS-2 to store the UTF-8 data. Under
this mechanism, all Unicode characters are stored by using 2 bytes.
Unicode data can be encoded in many different ways. UCS-2 and UTF-8 are two common ways to store bit patterns that represent Unicode characters. Microsoft Windows NT, SQL Server, Java, COM, and the SQL Server ODBC driver and OLEDB
provider all internally represent Unicode data as UCS-2.
The options for using SQL Server 7.0 or SQL Server 2000 as a backend server for an application that sends and receives Unicode data that is encoded as UTF-8 include:
For example, if your business is using a website supporting ASP pages, then this is what happens:
If your application uses Active Server Pages (ASP) and you are using Internet Information Server (IIS) 5.0 and Microsoft Windows 2000, you can add "<% Session.Codepage=65001 %>" to your server-side ASP script.
This instructs IIS to convert all dynamically generated strings (example: Response.Write) from UCS-2 to UTF-8 automatically before sending them to the client.
If you do not want to enable sessions, you can alternatively use the server-side directive "<%@ CodePage=65001 %>".
Any UTF-8 data sent from the client to the server via GET or POST is also converted to UCS-2 automatically. The Session.Codepage property is the recommended method to handle UTF-8 data within a web application. This Codepage
setting is not available on IIS 4.0 and Windows NT 4.0.
Sorting and other operations :
The effect of Unicode data on performance is complicated by a variety of factors that include the following:
1. The difference between Unicode sorting rules and non-Unicode sorting rules
2. The difference between sorting double-byte and single-byte characters
3. Code page conversion between client and server
Performing operations like >, <, ORDER BY are resource intensive and will be difficult to get correct results if the codepage conversion between client and server is not available.
Sorting lots of Unicode data can be slower than non-Unicode data, because the data is stored in double bytes. On the other hand, sorting Asian characters in Unicode is faster than sorting Asian DBCS data in a specific code page,
because DBCS data is actually a mixture of single-byte and double-byte widths, while Unicode characters are fixed-width.
Non-Unicode :
Non Unicode is exactly opposite to Unicode. Using non Unicode it is easy to store languages like ‘English’ but not other Asian languages that need more bits to store correctly otherwise truncation will occur.
Now, let’s see some of the advantages of not storing the data in Unicode format:
1. It takes less space to store the data in the database hence we will save lot of hard disk space.
2. Moving of database files from one server to other takes less time.
3. Backup and restore of the database makes huge impact and it is good for DBA’s that it takes less time
Non-Unicode vs. Unicode Data Types: Comparison Chart
The primary difference between unicode and non-Unicode data types is the ability of Unicode to easily handle the storage of foreign language characters which also requires more storage space.
Non-Unicode
Unicode
(char, varchar, text)
(nchar, nvarchar, ntext)
Stores data in fixed or variable length
Same as non-Unicode
char: data is padded with blanks to fill the field size. For example, if a char(10) field contains 5 characters the system will pad it with 5 blanks
nchar: same as char
varchar: stores actual value and does not pad with blanks
nvarchar: same as varchar
requires 1 byte of storage
requires 2 bytes of storage
char and varchar: can store up to 8000 characters
nchar and nvarchar: can store up to 4000 characters
Best suited for US English: "One problem with data types that use 1 byte to encode each character is that the data type can only represent 256 different characters. This forces multiple
encoding specifications (or code pages) for different alphabets such as European alphabets, which are relatively small. It is also impossible to handle systems such as the Japanese Kanji or Korean Hangul alphabets that have thousands of characters."<sup>1</sup>
Best suited for systems that need to support at least one foreign language: "The Unicode specification defines a single encoding scheme for most characters widely used in businesses around the world.
All computers consistently translate the bit patterns in Unicode data into characters using the single Unicode specification. This ensures that the same bit pattern is always converted to the same character on all computers. Data can be freely transferred
from one database or computer to another without concern that the receiving system will translate the bit patterns into characters incorrectly.
https://irfansworld.wordpress.com/2011/01/25/what-is-unicode-and-non-unicode-data-formats/
Thanks Shiven:) If Answer is Helpful, Please Vote

What is the size of a string data type

Hello,
What is the size of a string data type. Also what is the maximum size upto which a text file can grow?
Thanks in advance
cooldude

Hi cooldude,
the size of a string is given back by the function "String size". Strings are dynamically managed in LabView.
The max filesize is limited by the used filesystem. FAT-based systems are limited to 4GB (or was it 2GB?), other filesystems may allow more...
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

Convert from String data type to Character data type

Hi...,
I'm a beginner. I try to make a program. But I don't know how to convert from string to data type. I try to make a calculator with GUI window. And when somebody put "+" to one of the window, I just want to convert it to Character instead of String.
Sorry of my bad english..
Please help me....
Thanks

String s = "a+b";
char theplus = s.charAt(1);

About Number Data type

Hi All,
I have few issues with "Number" data type
1) trying to convert string "0.0000007" to Number i am getting value with exponential (1e-7). This is only when we have more than 5 0's after decimal.
2) If i try to do below calculation, i am not getting exact value:
ex: 999999.999999+999999999999=1000000999999-999999999999 = 1000000(expected should be:999999.999999)
0.3*6=1.79999998 (exact value: 1.8)
Please let me know what might be the issue......
Thanks in advance to all....

That's standard behavior for floating point. If you search the forum for
past discussions of floating point and Number you'll see explanations why.
To get displayable strings, use toPrecision or toFixed

Convert/Cast string data type from file to DT_GUID into table

Hi to all
is there anyone who help me please?!?
I'm not able to resolve the following problem.
I have a .csv file with a string field A and its values are GUID.
I must export this .csv file into SQL Server Table which have a uniqueidentifier (GUID) field B.
I must map string field A to GUID field B of table.
But I get an error like this: "Error at Data Flow Task [Derived Column [xxx]]: Error code 0x800401F3 occurred attempting to convert from data type DT_WSTR to data type DT_GUID.".
I read other posts like this in this forum and i also tried the solution suggested in those posts.
The proposed solution had suggested of insert in the expression field of "Derived Column" Transformation this expression (DT_GUID) ("{" + [YourGuid] + "}") in place of (DT_GUID) [YourGuid].
But i get always the same error.
is there anyone who help me please to resolve this issue?!?

The derived column expression should work if the yourGuid column contains a real guid.
Does the source looks something like: 25892e17-80f6-415f-9c65-7395632f0223
And are all rows filled with a correct value or are there also empty strings or null values?
Please mark the post as answered if it answers your question | My SSIS Blog:
http://microsoft-ssis.blogspot.com |
Twitter

String data type

Hi
Is there a built-in function/method to perform substring on an input
string?
If there is no such method, what is the quick and easy way to do
substring on a string?
Thanks
Anthony
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

Predefined Subtypes of Character Data Types
>
The CHAR data type has one predefined subtype, CHARACTER. The VARCHAR2 data type has two predefined subtypes, VARCHAR and STRING. Each of these subtypes has the same range of values as its base type, and can be used instead of its base type for compatibility with ANSI/ISO and IBM types.

Re: String data type

the string scalar type doesn't have that functionality, but if you use a
TextData it has the methods you are looking for.
Anthony N wrote:
>
Hi
Is there a built-in function/method to perform substring on an input
string?
If there is no such method, what is the quick and easy way to do
substring on a string?
Thanks
Anthony
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>--
Paul Monax
Senior Consultant
Sage IT Partners
303.779.3309 x204
[email protected]
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

There is a Std FM RFC_GET_TABLE_ENTRIES available to read the entries using the RFC destination. This FM returns the output in the flat structure. You need to transform this flat structure to your specific structure.
You mentioned:
PS: I know I could transform each DB field into a String, transfer it via RFC, and then re-transform this String back into the original data type. However, I would like to avoid this data transformation if possible.
What are the reasons you want to avoid this?
Regards,
Naimesh Patel

About string data type

Similar Messages

Maybe you are looking for