To read the column names of an internal table

Hi ,
I want to read the column/field names of an internal table into another internal table.
How can this be done?
Kind Regards,
hgarsht Rungta

Hi ,
you can get the attributes of any internal table into another ..
check the following code ..
DATA : it_mara TYPE STANDARD TABLE OF mara WITH HEADER LINE.
DATA : it_detail TYPE abap_compdescr_tab,
wa_comp TYPE abap_compdescr.
DATA : ref_descr TYPE REF TO cl_abap_structdescr.
ref_descr ?= cl_abap_typedescr=>describe_by_data( it_mara ).
it_detail[] = ref_descr->components .
loop at it_detail into wa_comp.
write:/ wa_comp-name .
endloop.
Regards,
Rajesh Kumar

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How to read the column name of a table from sap system using C#?

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I am using SAP .NET connector and creating a windows application.
Now I wanna read the column name when a table name is given....
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Can anyone help me with the code??

fine!!
So if i give the table name, which the RFC_READ_TABLE function module have, will it run properly? or i wanna change all the codes in order to support RFC_READ_TABLE function module?
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ECCDestinationConfig ECCDestination = new ECCDestinationConfig();
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Message was edited by: Jeswin Rebil

Script task to read the column names dynamically and create a table in database based on excel column structure

Hello,
Can anyone help me out to write a vb.net script.
I need to read the column names from excel and based on that column names I need to create a table in database(I have more than one sheet in excel).
For each sheet columns will be changing and should create a table dynamically for each sheet.
Any help would be appreciated.

Refer the below script to read columns in each sheet.
Dim excelfile As String = Dts.Variables("ExcelPath").Value.ToString
Dim connectionstring As String = "Provider=Microsoft.Jet.OLEDB.4.0;" +
"Data Source=" + excelfile + ";Extended Properties=Excel 8.0"
Dim oledbcon As New OleDb.OleDbConnection(connectionstring)
oledbcon.Open()
Dim dt As DataTable
Dim schemaTable As DataTable
Dim OLEDBCMD As New OleDb.OleDbCommand
Dim oledbdatareader As OleDb.OleDbDataReader
Dim columns As String = ""
dt = oledbcon.GetSchema("Tables")
Dim TABCOMMAND(20) As String
Dim TABCOUNT As Integer = 0
For Each row As DataRow In dt.Rows
TABCOMMAND(TABCOUNT) = "SELECT * FROM [" & row.Item("TABLE_NAME").ToString & "]"
OLEDBCMD.CommandText = TABCOMMAND(TABCOUNT)
OLEDBCMD.Connection = oledbcon
oledbdatareader = OLEDBCMD.ExecuteReader(CommandBehavior.KeyInfo)
schemaTable = oledbdatareader.GetSchemaTable()
For Each myfield As DataRow In schemaTable.Rows
For Each myproperty As DataColumn In schemaTable.Columns
If myproperty.ColumnName = "ColumnName" Then
columns = columns & myfield(myproperty).ToString & ","
MsgBox(myfield(myproperty).ToString)
End If
Next
Next
oledbdatareader.Close()
OLEDBCMD.Dispose()
Next
oledbcon.Close()
Regards, RSingh

How to get the field name of an internal table during runtime?

How to get the field name of an internal table during runtime?

Hi Sudhir,
Declare and Use Get Cursor Field in Your Prm to get the field Name of the Intenal Table
Example Code:
    <b> DATA: v_field(60).                        " Insert this code.
     GET CURSOR FIELD v_field.        " Insert this code.</b>
     <b>CHECK v_field = 'ITAB-KUNNR'.    " Insert this code. (or)
Write: v_field.</b>
Regards,
Ramganesan K.

How to read the column name of the Table.

hi
   I have applied sort functionality to the Table columns. It is working fine but I need to read the table column name before sorting ( On which column user trying to sort ).
   Thank you all,
Rama...

Hi Alex
   Thank you very much for your valid input.
But I am facing one problem here. To get sort functionality I added following logic in WDDOMODIFYVIEW method.
DATA wd_table TYPE REF TO cl_wd_table.
CHECK first_time = abap_true.
wd_table ?= view->get_element( 'TABLE_NAME' ).
wd_this->table_control ?= wd_table->_method_handler.
wd_this->table_control->set_key_attribute_name( 'COL_NAME1' ).
here I hard coded first column name(i.e. COL_NAME1). Is it correct?
and added following code in SORT ACTION of table i.e.
wd_this->table_control->apply_sorting( ).
To get column name I am using the method in SORT ACTION of table which you mentioned but always I am getting COL_NAME1 only....
Please help me how can I rectify this...
Thank you
Rama

Debugging ECC6: how to see the fields name when download internal table?

When we debug a reprot in ECC6 and save to a local file an internal table, the fields are not appearing only the data,
Is there a way to download also the table fields name?

From the new debugger switch to the classic debugger using menu path Debugger->Switch to Classic Debugger. Form the classic debugger you can download internal table data with column name(s).
Regards,
Joy.

Reading the data from field symbol internal table //

Hi,
There are 2 internal tables defined as Fieldsymbols (type any) and I need to retrive data from second internal table based on a field value in first internal table.
Let's assue the name internal table 1 is <it_itab1>, 2nd internal table name is <it_itab2> and the work areas are <wa_itab1> and <wa_itab2>.
The existing logic :
LOOP at <it_itab1> ASSIGNING <wa_itab1>.
ASSIGN COMPONENT 'XYZ' OF STRUCTURE <wa_itab1> TO l_field6.
LOOP AT <it_itab2> ASSIGNING <wa_itab2>.
    ASSIGN COMPONENT 'XYZ' OF STRUCTURE <wa_itab2> TO <p_field7>.
    IF <p_field7> = l_field6.
do the required business.
    ELSE.
      *     do the required business.
    ENDIF.
ENDLOOP.
ENDLOOP.
The requirement of reading second internal table was achieved by putting loop on the internal table but its giving considerable effect on performance !!
Is there any way to use READ statement in my case OR any way of putting WHERE condition on loop statement of second internal table ??
Thank you !!

Use the below Logic.
Loop at Itab1 into wa_itab1.
    Loop at itab2 into wa_itab2 where p_field7 = wa_itab1-xyz or I_field6.
do the required business.
    endloop.
    Loop at itab2 into wa_itab2 where p_field7 <> wa_itab1-xyz or I_field6.
do the required business.
    endloop.
endloop.
Hope it is useful...

Read the last record of an internal table

Hello All,
I need to read the last entry of the internal table? Is it possible to achieve this without using loop - endloop?
In the following example, I need to get the Batch '110776' and store it in a variable.
ITAB:
MATNR|CHARG
010780|110770
010780|110772
010780|110773
010780|110774
010780|110775
010780|110776
Thanks.

Use DESCRIBE to get the number of entires in variable last_entry
and then use read table ....index last_entry

Make the column to row.(internal table)

hi
i have an internal table ITAB
data:begin of itab
        quarters(2),
       end of itab.
   that has contents
Q1
Q2
Q3
Q4
I would like to have a ITAB2 like this
data:begin of itab
        Q1(2),
        Q2(2),
       Q3(2),
       Q4(2)
       end of itab.
Q1 Q2 Q3 Q4 Q5
any ideas guys..........
thanks
raghu.

REPORT z_test.
Transpose itab1 to itab2.
TYPES: BEGIN OF ty_1,
first,
second,
third,
fourth,
END OF ty_1.
TYPES: BEGIN OF ty_2,
first,
second,
third,
END OF ty_2.
FIELD-SYMBOLS: <fs> TYPE ANY,
              <fs2> TYPE ANY.
DATA: itab1 TYPE TABLE OF ty_1 WITH HEADER LINE,
      itab2 TYPE TABLE OF ty_1 WITH HEADER LINE,
      curr_line TYPE sy-tabix.
itab1-first = '1'.
itab1-second = '2'.
itab1-third = '3'.
itab1-fourth = '4'.
APPEND itab1.
itab1-first = '1'.
itab1-second = '2'.
itab1-third = '3'.
itab1-fourth = '4'.
APPEND itab1.
itab1-first = '1'.
itab1-second = '2'.
itab1-third = '3'.
itab1-fourth = '4'.
APPEND itab1.
LOOP AT itab1.
CLEAR itab2.
ASSIGN COMPONENT sy-tabix OF STRUCTURE itab2 TO <fs>.
curr_line = sy-tabix.
DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE itab1 TO <fs2>.
    IF sy-subrc NE 0.
      EXIT.
    ENDIF.
    IF curr_line = 1.
      <fs> = <fs2>.
      APPEND itab2.
    ELSE.
      READ TABLE itab2 INDEX sy-index.
      <fs> = <fs2>.
      MODIFY itab2 INDEX sy-index.
    ENDIF.
ENDDO.
ENDLOOP.
LOOP AT itab2.
WRITE:/ itab2.
ENDLOOP.
Please find the above code for the same.
Regards
Ramesh.

How do you get the column names for a given table from an SQL LocalDB programmatically in Visual Basic.

Just new to this and unable to find answers

My solution
    Public Function GetTableColumnNames() As Boolean
        Form1.ListBox1.Items.Clear()
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        Dim cn As New SqlConnection(_sqlConnectionString)
        'put the table name in brackets in case it has spaces in it
        Dim SQLString As String = "SELECT * FROM [" & _TableName & "]"
        Try
            cn.Open()
            Dim cmd As New SqlCommand(SQLString, cn)
            Dim rdr As SqlDataReader =
            cmd.ExecuteReader(CommandBehavior.KeyInfo)
            Dim tbl As DataTable = rdr.GetSchemaTable
            'This shows all of the information you can access about each column.
            For Each col As DataColumn In tbl.Columns
                Form1.ListBox1.Items.Add(col.ColumnName)
                Debug.Print("col name = " & col.ColumnName & ", type = " & col.DataType.ToString)
            Next
            'Get each column.
            For Each row As DataRow In tbl.Rows
                Form1.ListBox1.Items.Add(row("ColumnName"))
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            rdr.Close()
        Catch
            MessageBox.Show("Error opening the connection to the database.")
        Finally
            cn.Close()
        End Try
        Return _Success
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Need help on getting the column names of Tabletype

I have a table Mapping with the following values: This Mapping table contains the table names (in Tabname) and the column names(colname) of various tables and values(ValuesTobeFilled) for the columns.
I have to insert into the tables present in the Tabname field with the values present in the ValuesTobeFilled in the columns present in the Colname field.
Note: The Mapping table need not contain all the columns of the base table. The columns that are not present can be filled with null. And this mapping table is not fixed i.e. rows can be inserted/deleted frequently.
Sample values in mapping table:
Tabname                        Colname        ValuesTobeFilled
sample_items     Eno     Corresponding Expression to get the values from XML input
sample_items     Ename     Corresponding Expression to get the values from XML input
XXX     YYY     Corresponding Expression to get the values from XML input
Before filling in the actual tables, I have to store the entire data temporarily and I have used a tabletype declared as follows:
TYPE T_sample_items IS TABLE OF sample_items%ROWTYPE INDEX BY BINARY_INTEGER;
l_sample_items T_sample_items;
Where the table sample_items have the following columns:
•     Eno
•     Ename
•     Eaddress
•     Eemail
So, the tabletype should be filled as:
Eno     Ename     Eaddress     EEmail
1     XXX     -     -
I have declared a cursor to select the values from mapping table and I need to fill in the ValuesTobeFilled values to the corresponding table.
CURSOR c_xpath (c_tname mapping.TABNAME%type)
IS
select * from mapping where tabname = c_tname;
CURSOR c_tables
IS
SELECT DISTINCT TABNAME FROM mapping;
FOR crsr IN c_tables
LOOP
p_tname := CRSR.TABNAME;
FOR csr IN c_xpath(p_tname)
LOOP
IF l_xml_doc.EXISTSNODE(CSR.XPATH_EXP) = 1
THEN
l_node_value := l_xml_doc.extract(CSR.XPATH_EXP).getStringVal(); -- This is the value to be stored in the corresponding column
ELSE
     l_node_value := NULL;
END IF;
IF CSR.COLUMN_NAME = ‘eno’
THEN
     l_sample_items(1).eno := l_node_value;
ELSIF CSR.COLUMN_NAME = ‘ename’
THEN
     l_sample_items(1).name := l_node_value;
END IF;
END LOOP;
END LOOP;
And I need to eliminate hard coding while comparing the column names (in the following piece of code) as the Mapping table values are subject to insertion/deletion:
IF CSR.COLUMN_NAME = ‘eno’
THEN
     l_sample_items(1).eno := l_node_value;
ELSIF CSR.COLUMN_NAME = ‘ename’
THEN
     l_sample_items(1).ename := l_node_value;
END IF;
I need to insert the values directly into the tabletype without this hardcoding. Please suggest me ways to compare the mapping table values with the field (column) names of the tabletype. If it is not possible using tabletype, please suggest any other ways of fixing the problem.
Many thanks,
Gopi

I take it this isn't going to be a serious production system at the end of the day?
Storing metadata in tables for extraction and insertion of data is just wrong in so many ways. It smells heavily of Entity Attribute Value modelling, which is the most wrong way to use a relational database and is known to have major performance implications and be liable to bugs and issues. The idea that EAV modelling allows for 'generic' databases where new data items can be added flexibly later on without having to change code is usually justified with an excuse of "it means we don't have to update all our tables when we want a new column" which is easily countered with "if you're adding a single column a good relational design wouldn't require you to add it to more than one table anyway in most cases".
Just what exactly are you trying to do and why? There has to be a better way.

Getting field names of an internal table

Hi all,
Does anyone know if exists a statement, function module or method that gets the field names of an internal table ?
Thanks in advance,
David

Hi,
See this
REPORT typedescr_test.
TYPES:
BEGIN OF my_struct,
comp_a type i,
comp_b type f,
END OF my_struct.
DATA:
my_data TYPE my_struct,
descr_ref TYPE ref to cl_abap_structdescr.
FIELD-SYMBOLS:
<comp_wa> TYPE abap_compdescr.
START-OF-SELECTION.
descr_ref ?= cl_abap_typedescr=>describe_by_data( my_data ).
WRITE: / 'Typename :', descr_ref->absolute_name.
WRITE: / 'Kind :', descr_ref->type_kind.
WRITE: / 'Length :', descr_ref->length.
WRITE: / 'Decimals :', descr_ref->decimals.
WRITE: / 'Struct Kind :', descr_ref->struct_kind.
WRITE: / 'Components'.
WRITE: / 'Name Kind Length Decimals'.
LOOP AT descr_ref->components ASSIGNING <comp_wa>.
WRITE: / <comp_wa>-name, <comp_wa>-type_kind,
<comp_wa>-length, <comp_wa>-decimals.
ENDLOOP.

Getting Column names (header) of a table dynamically

Dear Experts,
Greetings.
I have a requirement in which I need to get the column name (header) of a table when the user clicks on a column.
Kindly suggest me the possible ways.
Thanks in advance.
Regards
Sathya

Hi,
use one of the following based on your requirement
Bind the header text to a context attribute and access this attribute from code when clicked on the column.
Or use parameter mapping.
Regards
Ayyapparaj

How To Know The Column Name Of The Internal Table

HI ,
        i have an internal table .
f1          f2           f 3         f4            f5
matnr   mbrsh    mtart     meins       minbe
i want to know the column name which depending on the value i.e . if it is matnr then f1 , if mbrsh it is f2 ..so on
Thanks.

Hi ,
      thanks for your replies . i am elaborating my query .
        I have an internal table with 80 fields i.e.f1,f2,f3......f80 . In the first index i will be having the fieldnames
i.e.matnr , mbrsh , meins , mtart ..... . From second index onwards i will be having the corresponding data for the field name. i need to display a particular field in a table control . Here i will be knowing the fieldname. If i can get to know the column name i.e whether f1 or f2 or ... .i Can populate the data into the table control.
Wht i have done is taken a field symbol and used the following code.
read table i_upload index 1 assigning <lv_upload>.
here i will get the initial first record i.e
F1                                             MATNR
F2                                             MBRSH
F3                                             MTART
F4                                             WERKS
F5                                             LGORT
F6                                             VKORG
F7                                             VTWEG
F8                                             MAKTX
F9                                             MEINS
F10                                             MATKL
F11                                             BISMT
F12                                             BRGEW
F13                                             GEWEI
F14                                             NTGEW
F15                                             GROES
F16                                             KLART
F17                                             CLASS
F18                                             SPART
F19                                             VRKME
F20                                             UMREN
now i want to the field name .
Hope it is clear this time .
Thanks.

Reading csv file how to get the Column name

Hi,
I am trying to read a csv file and then save the data to Oracle.
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection c = DriverManager.getConnection("jdbc:odbc:;Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq=.;Extensions=csv,txn");
Statement stmt = c.createStatement();
ResultSet rs = stmt.executeQuery("select * from filename.csv");
while(rs.next())
System.out.println(rs.getString("Num"));
My csv file looks like this:
"CHAM-23","COMPANY NAME","Test","12",20031213,15,16
Number,Environ,Envel,Date,Time
"1","2",3,"4",5
"6","7",8,"9",9
Now is there anyway using the above code I start processing the file from the second row that holds the names of the columns and skip the first row. And also can I get the name of the column using ResultSet something like:
if columnName.equals("Number")
Because I may have a csv file that could have more columns:
"CHAM-24","COMPANY NAME","Test","12",20031213,16,76
Number,Environ,Envel,Date,Time,Total,Count
"1","2","3","4","5",3,9
"6","7","8","9",9",,2
So I want to get the column name and then based on that column I do some other processing.
Once I read the value of each row I want to save the data to an Oracle Table. How do I connect to Oracle from my Application. As the database is on the server. Any help is really appreciated. Thanks

The only thing I could think of (and this is a cluj) would be to attempt to parse the first element of each row as a number. If it fails, you do not have a column name row. You are counting on the fact that you will never have a column name that is a number in the first position.
However, I agree that not always placing the headers in the same location is asking for trouble. If you have control over the file, format it how you want. If someone else has control over the file, find out why they are doing it that way. Maybe there is a "magic" number in the first row telling you where to jump.
Also, I would not use ODBC to simply parse a CSV file. If the file is formatted identically to Microsoft's format (headers in first row, all subsequent rows have same number of columns), then it's fine to take a shortcut and not write your own parser. But if the file is not adhering to that format, don't both using the M$ ODBC driver.
- Saish
"My karma ran over your dogma." - Anon

To read the column names of an internal table

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