Reading a CSV file and producing an array of objects

Hi everybody,
I am writing an application which will read a cvs file and produce an array of objects.
Can any body help me to solve this problem?
Thanks
Finny

Hello,
Have you tried this link?
http://ostermiller.org/utils/CSV.html

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Read a CSV file and dynamically generate the insert

I have a requirement where there are multiple csv's which needs to be exported to a sql table. So far, I am able to read the csv file and generate the insert statement dynamically for selected columns however, the insert statement when passed as a parameter
to the $cmd.CommandText
does not evaluate the values
How to evaluate the string in powershell
Import-Csv -Path $FileName.FullName | % {
# Insert statement.
$insert = "INSERT INTO $Tablename ($ReqColumns) Values ('"
$valCols='';
$DataCols='';
$lists = $ReqColumns.split(",");
foreach($l in $lists)
$valCols= $valCols + '$($_.'+$l+')'','''
#Generate the values statement
$DataCols=($DataCols+$valCols+')').replace(",')","");
$insertStr =@("INSERT INTO $Tablename ($ReqColumns) Values ('$($DataCols))")
#The above statement generate the following insert statement
#INSERT INTO TMP_APPLE_EXPORT (PRODUCT_ID,QTY_SOLD,QTY_AVAILABLE) Values (' $($_.PRODUCT_ID)','$($_.QTY_SOLD)','$($_.QTY_AVAILABLE)' )
$cmd.CommandText = $insertStr #does not evaluate the values
#If the same statement is passed as below then it execute successfully
#$cmd.CommandText = "INSERT INTO TMP_APL_EXPORT (PRODUCT_ID,QTY_SOLD,QTY_AVAILABLE) Values (' $($_.PRODUCT_ID)','$($_.QTY_SOLD)','$($_.QTY_AVAILABLE)' )"
#Execute Query
$cmd.ExecuteNonQuery() | Out-Null
jyeragi

Hi Jyeragi,
To convert the data to the SQL table format, please try this function out-sql:
out-sql Powershell function - export pipeline contents to a new SQL Server table
If I have any misunderstanding, please let me know.
If you have any feedback on our support, please click here.
Best Regards,
Anna
TechNet Community Support

Read a csv file and read the fiscal yr in the 4th pos?

Hello ABAP Experts,
how to write a code for read a csv file and read the fiscal year in the 4th position.
any suggestions or code highly appreciated.
Thanks,
BWer

Hi Bwer,
Declare table itab with the required fields...
Use GUI UPLOAD to get the contents of the file (say abc.csv) in case if the file is on the presentation server...
CALL FUNCTION 'GUI_DOWNLOAD'
EXPORTING
    filename                        = 'c:\abc.csv'
   FILETYPE                        = 'ASC'
    WRITE_FIELD_SEPARATOR           = 'X'
tables
    data_tab                        = itab
EXCEPTIONS
   FILE_WRITE_ERROR                = 1
   NO_BATCH                        = 2
   OTHERS                          = 22
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
Use OPEN DATASET in case if the file is on the application server..
After that USE SPLIT command at comma to get the contents of the 4th field...
Regards,
Tanveer.
<b>Please mark helpful answers</b>

Read from csv file and plot particular columns

Hello,
I`m a new user of Labview and here it comes...my first major problem.
Maybe this has been discussed before. I’ve made a search to solve my problem first but I couldn`t find anything helpful so I `ve decided to post a new message.
So here is my problem:
I`m working in a small semiconductor lab where different types of nitrides are grown using proprietary reactor. The goal is to read the collected csv files from each growth in Labview and plot the acquired data in appropriate graphs.
I have a bunch of csv files and I have to make a Labview program to read them.
The first part of my project I`ve decided to be displaying the csv file (growth log file) under labview (which I think works fine).
The second one is to be able to plot particular columns from the recipe in graphs in Labview (that one actually gives me a lot of trouble):
1. Timestamp vs Temperature /columns B and D/
2. Timestamp vs Gas flow /columns L to S/
3. Timestamp vs Pressure /columns E,K,T,U,V/
I`ve got one more problem. How can I convert the Timestamp shown in csv file to human readable date in labview? This actually is a big problem, because the timestamp is my x axis and I want to know at what time a particular process took place and I also want to be able to see the converted timestamp when displaying csv file at first. I`ve read a lot about time stamping in excel and timestamp in labview but I`m still confused how to convert it in my case.
I don`t have problems displaying csv file under Labview. My problems are with the timestamp and the graphs.
Sorry for my awful English. I hope you can understand my problems since English is not my mother language.
Please find the attached files.
If you have any ideas or suggestions I`ll be more than happy to discuss them.
Thank you in advance.
Have a nice day!
Attachments:
growth log.csv ‏298 KB
Read from growth log.vi ‏33 KB

Hello again,
I`m having problems with converting the first column in the attached above file Growth Log.csv.
I have a code converting xl timestamp to time and using Index Array traying to grab a particular column out of it but the attached file is written in strings so I guess I have to redo it in array but I don`t know how.Would you help me with this one?
Attachments:
Xl Timestamp to Time.vi ‏21 KB

Reading a csv file and bind to a data grid

hi. doing a school project and been searching. the application reads a csv file from c:\stocklist.csv, and then this in a button called btnLoadData, and now need to read in a data control called DmgDisplayData. do i put the code in the button, or in the
data grid. been searching, but cannot seem to find any thing. so, where do i put the code, in the data control, and does any one have an example code how to read into the data fields. also need to have one field, able to edit, the other three or four fields,
read only. can any one help me out. never covered this in the subject, but did do file streams a few years ago in vb, but usin g c#,a dn the help in visual studio, not that helpful, with a blind person using a screen reader, jaws for windows from http://www.freedomscientific.com,
and using visual studio 2013 community edition. can any one help me out, been searching and trawling about 15 to 20 pages so far, and did try a couple of sites, but could not find, any help. thanks. the application is to read a csv file from a button, and
load into a data grid, then have a message box, saying file load successful, then have one field, order on as edit, but the other fields, read only, so do i need the navigator buttons, for next, back, previous, etc, and how do i code that as well. not to do
it for me, want to learn, but maybe some sample code, did do navgiator controls, years ago for a vb project, but need the c # example for that, thanks. then you have a button, Save data, that saves the csv file in the data grid. so can google for that. then
have a toolbar, with a button saying, Sort Items, a tool strip, and when you click on that button, you have a drop down list, of three items, then a sort button, which will then sort the array in the data grid. so, do i need another form, or just do the combo
box as an invisible control, then just refrence, that in the toolbar. so need to use th file class and an array, learnt about single and multi arrays. any ideas. thanks.
http://startrekcafe.stevesdomain.net http://groups.yahoo.com/groups/JawsOz

Hi Marvin,
-->where do i put this, in the data grid click event. or in the form load event. thanks.
You could use this code after you initialize the DataGridView. you could put it in the form load event.
-->what about how get the tool bar and the combo box and another button, then sort from the combo box on the array for the collumns, for to set focus to the first read collumn for the data grid. how do i do that, close the parent form, and have another
form on the toolbar.
Since this is another issue of this thread, I would recommend you posting it with
another thread. We will focus on that thread to help you. Thanks for your
understanding.
BTW, Before you asking questions, I suggest you could learn to make it by yourself. You could begin to learn winforms in MSDN articles:
https://msdn.microsoft.com/en-us/library/dd30h2yb%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396. Or Google it, you will get many answers. In that way, you will learn more from the questions.
Best regards,
Youjun Tang
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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HERE to participate the survey.

Read two CSV files and remove the duplicate values within them.

Hi,
I want to read two CSV files(which contains more than 100 rows and 100 columns) and remove the duplicate values within that two files and merge all the unique values and display it as a single file.
Can anyone help me out.
Thanks in advance.

kirthi wrote:
Can you help me....Yeah, I've just finished... Here's a skeleton of my solution.
The first thing I think you should do is write a line-parser which splits your input data up into fields, and test it.
Then fill out the below parse method, and test it with that debugPrint method.
Then go to work on the print method.
I can help a bit along the way, but if you want to do this then you have to do it yourself. I'm not going to do it for you.
Cheers. Keith.
package forums.kirthi;
import java.util.*;
import java.io.PrintStream;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import krc.utilz.io.ParseException;
import krc.utilz.io.Filez.LineParser;
import krc.utilz.io.Filez.CsvLineParser;
public class DistinctColumnValuesFromCsvFiles
public static void main(String[] args) {
    if (args.length==0) args = new String[] {"input1.csv", "input2.csv"};
    try {
      // data is a Map of ColumnNames to Sets-Of-Values
      Map<String,Set<String>> data = new HashMap<String,Set<String>>();
      // add the contents of each file to the data
      for ( String filename : args ) {
        data.putAll(parse(filename));
      // print the data to output.csv
      print(data);
    } catch (Exception e) {
      e.printStackTrace();
private static Map<String,Set<String>> parse(String filename) throws IOException, ParseException {
    BufferedReader reader = null;
    try {
      reader = new BufferedReader(new FileReader(filename));
      CsvLineParser.squeeze = true; // field.trim().replaceAll("\\s+"," ")
      LineParser<String[]> parser = new CsvLineParser();
      int lineNumber = 1;
      // 1. read the column names (first line of file) into a List
      // 2. read the column values (subsequent lines of file) into a List of Set's of String's
      // 3. build a Map of columnName --> columnValues and return it
    } finally {
      if(reader!=null)reader.close();
private static void debugPrint(Map<String,Set<String>> data) {
    for ( Map.Entry<String,Set<String>> entry : data.entrySet() ) {
      System.out.println("DEBUG: "+entry.getKey()+" "+Arrays.toString(entry.getValue().toArray(new String[0])));
private static void print(Map<String,Set<String>> data) {
    // 1. get the column names from the table.
    // 2. create a List of List's of String's called matrix; logically [COL][ROW]
    // 3. print the column names and add the List<String> for this col to the matrix
    // 4. print the matrix by inerating columns and then rows
}

Read from csv file and graph at certain interval

Hi,
I've been trying all day to modify a labView program so it reads in data from my csv file to graph temperatures from 4 ovens. The temperatures are logged in the csv file at 3s intervals and i wish to display them on 4 graphs. I've written a vi (or modified one i should say) to take in a temperature value from a numeric control. Im just having extreme difficulty with the reading part.
If someone can help me it would be greatly appreciated.
Best regards,
Dawn
Attachments:
Oven temps.csv ‏2 KB
Oven_level_meas.vi ‏58 KB

Hi there,
I have a similar problem here. I see your point that you should read the file at once but I don't seem to be able to manage it. Shouldn't you use some kind of
a buffer to achieve this? Let me tell you what I am trying to do: I have a csv file with several columns that I want to display in several waveform charts. Each column is a wavechart. I should be able to change the speed at which the data is displayed. I am able to do this because I change the wait until (ms) in the for loop. However the application is too slow. I think because I open the csv file in the for loop and display it while I am reading it. I have tried to put it outside the for loop but this doesn't work. I think I need some kind of a buffer in which the data is stored after reading it. And then this buffer should be used in the for loop. I have looked at the producer-consumer structure but I dont fully understand it as I am not that experienced with labview. Any help or changes to my VI would be appreciated. I have attached the VI and the file with meaningless data I am using for testing.
Thanks
Attachments:
read_data_file_dynamically.vi ‏39 KB
test.CSV ‏332 KB

Read a csv file and update sql db

I'm a newbie to C#. I've put together the code below - see two commented lines where the for loop starts. need advise as to the correct approach. you may insert pseudo
code in appropriate places. Thanks in advance.
Below is my code:
public class MailingConfirmationService
private SqlConnection _con = new SqlConnection(ConfigurationManager.AppSettings.Get("ConnectionString"));
public void ProcessFilesForMailingConfirmation()
//Process file(s)
IResource resourceFile = ResourceFactory.GetResourceFile(ResourceList.FileLocation);
DirectoryInfo dataFiles = new DirectoryInfo(resourceFile.GetString("filesourcelocation"));
if (dataFiles.GetFiles().Length > 0)
log.Info("File Processing started");
foreach (FileInfo dataFile in dataFiles.GetFiles("*.csv"))
log.Info("Processing Data File: " + dataFile.Name);
if (dataFile != null && dataFile.Name.Contains("IN"))
foreach (string sLine in File.ReadLines(dataFile))
    _con.Open();
cmd.ExecuteNonQuery();
_con.Close();

The   foreach (string sLine in File.ReadLines(dataFile))
should be  foreach (string sLine in File.ReadLines(dataFile.FullName))
its expecting path as param.
Check also for this example to enumerate files and their lines:
https://msdn.microsoft.com/en-us/library/dd383503%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396
Fouad Roumieh

Reading a text file and producing XML

Is there a tool out there or integrated to JDev where I can take a text file with certain text strings in it and produce XML?
M

You can use the components in the Oracle XDK for Java for this. JDeveloper ships with a version of the Oracle XDK for Java, but the latest release is always at http://otn.oracle.com/tech/xml
Steve Muench
Development Lead, Oracle XSQL Pages Framework
Lead Product Manager for BC4J and Lead XML Evangelist, Oracle Corp
Author, Building Oracle XML Applications
null

How to read a CSV file and Insert data into an Oracle Table

Hi All,
I have a Clob file as a in parameter in my PROC. . File is comma separated.need procedure that would parse this CLOB variable and populate in oracle table .
Please let me some suggestions on this.
Thanks,
Chandra R

jeneesh wrote:
And, please don't "hijack" 5 year old thread..Better start a new one..I've just split it off to a thread of it's own. ;)
@OP,
I have a Clob file as a in parameter in my PROC. . File is comma separated.need procedure that would parse this CLOB variable and populate in oracle table .You don't have a "clob file" as there's no such thing. CLOB is a datatype for storing large character based objects. A file is something on the operating system's filesystem.
So, why have you stored comma seperated data in a CLOB?
Where did this data come from? If it came from a file, why didn't you use SQL*Loader or, even better, External Tables to read and parse the data into structured format when populating the database with it?
If you really do have to parse a CLOB of data to pull out the comma seperated values, then you're going to have to write something yourself to do that, reading "lines" by looking for the newline character(s), and then breaking up the "lines" into the component data by looking for commas within it, using normal string functions such as INSTR and SUBSTR or, if necessary, REGEXP_INSTR and REGEXP_SUBSTR. If you have string data that contains commas but uses double quotes around the string, then you'll also have the added complexity of ignoring commas within such string data.
Like I say... it's much easier with SQL*Loader of External Tables as these are designed to parse such CSV type data.

VBScript to read the content of a .csv file and delete old files mentioned in the .csv

I have a Windows 2003 file server.
I have generated a report in .csv format, about the files which are older than 1 year.
I need a VBScript to read the .csv file and delete the files which are enlisted there.
Can someone please help me with this?

Look into the "Learn" link above. There are resources and instructions on how to write VBScript code. Look into how to use the FileSystemObject.
¯\_(ツ)_/¯

Read a csv file, fill a dynamic table and insert into a standard table

Hi everybody,
I have a problem here and I need your help:
I have to read a csv file and insert the data of it into a standard table.
1 - On the parameter scrreen I have to indicate the standard table and the csv file.
2 - I need to create a dynamic table. The same type of the one I choose at parameter screen.
3 - Then I need to read the csv and put the data into this dynamic table.
4 - Later I need to insert the data from the dynamic table into the standard table (the one on the parameter screen).
How do I do this job? Do you have an example? Thanks.

Here is an example table which shows how to upload a csv file from the frontend to a dynamic internal table. You can of course modify this to update your database table.
report zrich_0002.
type-pools: slis.
field-symbols: <dyn_table> type standard table,
               <dyn_wa>,
               <dyn_field>.
data: it_fldcat type lvc_t_fcat,
      wa_it_fldcat type lvc_s_fcat.
type-pools : abap.
data: new_table type ref to data,
      new_line type ref to data.
data: xcel type table of alsmex_tabline with header line.
selection-screen begin of block b1 with frame title text .
parameters: p_file type rlgrap-filename default 'c:Test.csv'.
parameters: p_flds type i.
selection-screen end of block b1.
start-of-selection.
* Add X number of fields to the dynamic itab cataelog
do p_flds times.
    clear wa_it_fldcat.
    wa_it_fldcat-fieldname = sy-index.
    wa_it_fldcat-datatype = 'C'.
    wa_it_fldcat-inttype = 'C'.
    wa_it_fldcat-intlen = 10.
    append wa_it_fldcat to it_fldcat .
enddo.
* Create dynamic internal table and assign to FS
call method cl_alv_table_create=>create_dynamic_table
               exporting
                  it_fieldcatalog = it_fldcat
               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>.
* Upload the excel
call function 'ALSM_EXCEL_TO_INTERNAL_TABLE'
       exporting
            filename                = p_file
            i_begin_col             = '1'
            i_begin_row             = '1'
            i_end_col               = '200'
            i_end_row               = '5000'
       tables
            intern                  = xcel
       exceptions
            inconsistent_parameters = 1
            upload_ole              = 2
            others                  = 3.
* Reformt to dynamic internal table
loop at xcel.
    assign component xcel-col of structure <dyn_wa> to <dyn_field>.
    if sy-subrc = 0.
     <dyn_field> = xcel-value.
    endif.
    at end of row.
      append <dyn_wa> to <dyn_table>.
      clear <dyn_wa>.
    endat.
endloop.
* Write out data from table.
loop at <dyn_table> into <dyn_wa>.
    do.
      assign component sy-index of structure <dyn_wa> to <dyn_field>.
      if sy-subrc <> 0.
        exit.
      endif.
      if sy-index = 1.
        write:/ <dyn_field>.
      else.
        write: <dyn_field>.
      endif.
    enddo.
endloop.
REgards,
RIch Heilman

Read .csv File and Update DB

I have a .csv file with about 11 columns and multiple rows.
I need to read this file and from each row extract the first
4 columns and update my local database.
If the value if 1st column (unique#) is already in DB do an
Update else do an Insert.
How do I read this .csv file and accomplish this goal?

You read the file with <cffile>
It then becomes nested lists. For the outer list, your
delimiter is chr(10). Each list item is a row from your file. For
your inner list, the delimiter is a comma.
That should get you started. Details list functions and
<cffile> are in the cfml reference manual. If you don't have
one, the internet does.

Read a CSV file into Flex

Hi all,
I'm new to flex and have been asked to provide a small widget
that will display the contents of a csv in a list. Can I use the
HTTPService to open a csv file and then create an actionscript 3
function to parse it? If so can anyone point me to a tutorial on
how to parse a csv file please.
Thanks in advance

Hello Sir,
I am new to flex and want to read a csv file and using below code but does not seems to be working. Can you please help?
i use below code but did not work
var file:File = evt.currentTarget as File;
         file = file.resolvePath(file.nativePath);
         var fileStream:FileStream = new FileStream();
         fileStream.open(file, FileMode.READ);
         var fileData:String = fileStream.readUTFBytes(fileStream.bytesAvailable);
         var endings:Array = [File.lineEnding, "\n", "\r"];
but for some reason it return "ÐÏ ࡱá" funny value. Any idea why don't i get the correct data from file.
belwo is the csv file i am trying to open.
Title
Given_Name
Surname
Gong
Salutation
Position
Organisation
Address_Line_1
Address_Line_2
Address_Line_3
Suburb
State
Postcode
Country
Home_Phone
Fax
Other_Phone
User_Field_1
User_Field_2
User_Field_3
User_Field_4
Mobile_Phone
Second_Address
Second_Address_Line_1
Second_Address_Line_2
Second_Address_Line_3
Second_Suburb
Second_State
Second_Country
Second_Postcode
Langcode
Website
Mr.
Jeff
Alexander
Retention Marketing
Monday, April 13th, 2009
Mr.
Anthony
Demaso
Retention Marketing
Monday, April 13th, 2009
Sally
Swinamer
Yield
Monday, April 13th, 2009
Chris
Torbay
Yield
Monday, April 13th, 2009
Annette
Warring
Genesis Vizeum
Monday, April 13th, 2009
Mr.
Mark
Khoury
Genesis Vizeum
Monday, April 13th, 2009
Mr.
Andy
Thorndyke
Thorsons
Monday, April 13th, 2009
Shannon
Rutherford
Central Reproductions
Monday, April 13th, 2009
Mr.
Rob
Greenwood
Central Reproductions
Monday, April 13th, 2009
Lisa
Marchese
Des Rosiers
Monday, April 13th, 2009
Mr.
Michael
Whitcombe
McMillan LLP
Monday, April 13th, 2009
Thanks,
Gill

Importing CSV file and parsing it

First of all I am very new to writing powershell code. Therefore, my question could be very rudimentary, but I cannot find an answer, so please help.
I'm trying to read a CSV file and parse it. I cannot figure out how to access nth element without hardcoding its name.
$data = Import-Csv $file #import CSV file
# read column headers (manually read the first row of the data file, or import it from other source, or ...)
$file_dump = Get-Content $file #OK, I'm sure there is another way to get just the first line, but that's not relevant
$name_list = $file_dump[0].split(",")
# access element
$temp = $data[$i].Name # works - but that's HARDCODING the column name into the script - what if someone changes it?
#but what I want to do is
$temp = $data[$i].$name_list[0]
How do I do this in PowerShell?

So you're asking how to get the first data point from the first column, no matter what the header is?
Why won't you know what your input file looks like?
You can always drop the first line of the file to remove the existing headers and then use the -Header parameter of Import-Csv to give yourself known headers to reference (this will only work if you know how many columns to expect, etc etc etc).
http://ss64.com/ps/import-csv.html
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Reading a CSV file and producing an array of objects

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