ABAP Select data from SAP table GLE_STR_FI_HEADER_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GLE_STR_FI_HEADER_DATA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to GLE_STR_FI_HEADER_DATA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the GLE_STR_FI_HEADER_DATA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_GLE_STR_FI_HEADER_DATA TYPE STANDARD TABLE OF GLE_STR_FI_HEADER_DATA,
      WA_GLE_STR_FI_HEADER_DATA TYPE GLE_STR_FI_HEADER_DATA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <GLE_STR_FI_HEADER_DATA> TYPE GLE_STR_FI_HEADER_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GLE_STR_FI_HEADER_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GLE_STR_FI_HEADER_DATA
  INTO TABLE IT_GLE_STR_FI_HEADER_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLE_STR_FI_HEADER_DATA
*  INTO TABLE @DATA(IT_GLE_STR_FI_HEADER_DATA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_GLE_STR_FI_HEADER_DATA INDEX 1 INTO DATA(WA_GLE_STR_FI_HEADER_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GLE_STR_FI_HEADER_DATA ASSIGNING <GLE_STR_FI_HEADER_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLE_STR_FI_HEADER_DATA>-AWTYP = 1.
<GLE_STR_FI_HEADER_DATA>-AWREF = 1.
<GLE_STR_FI_HEADER_DATA>-AWORG = 1.
<GLE_STR_FI_HEADER_DATA>-AWSYS = 1.
<GLE_STR_FI_HEADER_DATA>-GLVOR = 1.

ENDLOOP.

LOOP AT IT_GLE_STR_FI_HEADER_DATA INTO WA_GLE_STR_FI_HEADER_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLE_STR_FI_HEADER_DATA-PROCESS, sy-vline,
  WA_GLE_STR_FI_HEADER_DATA-SUBSET, sy-vline,
  WA_GLE_STR_FI_HEADER_DATA-USNAM, sy-vline,
  WA_GLE_STR_FI_HEADER_DATA-TCODE, sy-vline,
  WA_GLE_STR_FI_HEADER_DATA-CPUDT, sy-vline,
  WA_GLE_STR_FI_HEADER_DATA-CPUTM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLE_STR_FI_HEADER_DATA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_GLE_STR_FI_HEADER_DATA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_GLE_STR_FI_HEADER_DATA INTO WA_GLE_STR_FI_HEADER_DATA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLE_STR_FI_HEADER_DATA-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_STR_FI_HEADER_DATA-AWREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLE_STR_FI_HEADER_DATA-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_STR_FI_HEADER_DATA-AWSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLE_STR_FI_HEADER_DATA-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_STR_FI_HEADER_DATA-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DBBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLE_STR_FI_HEADER_DATA-DBBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_STR_FI_HEADER_DATA-DBBLG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KURSX
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_STR_FI_HEADER_DATA-KURSX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_STR_FI_HEADER_DATA-KURSX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR2X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_STR_FI_HEADER_DATA-KUR2X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_STR_FI_HEADER_DATA-KUR2X.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR3X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_STR_FI_HEADER_DATA-KUR3X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_STR_FI_HEADER_DATA-KUR3X.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_GLE_STR_FI_HEADER_DATA_STR, 
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
AWSYS TYPE STRING,
GLVOR TYPE STRING,
PROCESS TYPE STRING,
SUBSET TYPE STRING,
USNAM TYPE STRING,
TCODE TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
BKTXT TYPE STRING,
DOCID TYPE STRING,
BARCD TYPE STRING,
KNUMV TYPE STRING,
STATUS_NEW TYPE STRING,
STATUS_OLD TYPE STRING,
GRPID TYPE STRING,
ACC_PRINCIPLE TYPE STRING,
RLDNR TYPE STRING,
LDGRP TYPE STRING,
NOSPLIT TYPE STRING,
GLPROCESS TYPE STRING,
GLPROCVAR TYPE STRING,
EXCLUDE_FLAG TYPE STRING,
DBBLG TYPE STRING,
KURSX TYPE STRING,
KUR2X TYPE STRING,
KUR3X TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLE_STR_FI_HEADER_DATA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_GLE_STR_FI_HEADER_DATA_STR-AWTYP sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-AWREF sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-AWORG sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-AWSYS sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-GLVOR sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-PROCESS sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-SUBSET sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-USNAM sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-TCODE sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-CPUDT sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-CPUTM sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-BKTXT sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-DOCID sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-BARCD sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-KNUMV sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-STATUS_NEW sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-STATUS_OLD sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-GRPID sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-ACC_PRINCIPLE sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-RLDNR sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-LDGRP sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-NOSPLIT sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-GLPROCESS sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-GLPROCVAR sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-EXCLUDE_FLAG sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-DBBLG sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-KURSX sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-KUR2X sy-vline 
WA_GLE_STR_FI_HEADER_DATA_STR-KUR3X sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.