ABAP Select data from SAP table /BEV1/EMLGBSD1_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV1/EMLGBSD1_S 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 /BEV1/EMLGBSD1_S. 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 /BEV1/EMLGBSD1_S 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_/BEV1/EMLGBSD1_S TYPE STANDARD TABLE OF /BEV1/EMLGBSD1_S,
      WA_/BEV1/EMLGBSD1_S TYPE /BEV1/EMLGBSD1_S,
      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: </BEV1/EMLGBSD1_S> TYPE /BEV1/EMLGBSD1_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV1/EMLGBSD1_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV1/EMLGBSD1_S
  INTO TABLE IT_/BEV1/EMLGBSD1_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV1/EMLGBSD1_S
*  INTO TABLE @DATA(IT_/BEV1/EMLGBSD1_S2).
*--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_/BEV1/EMLGBSD1_S INDEX 1 INTO DATA(WA_/BEV1/EMLGBSD1_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV1/EMLGBSD1_S ASSIGNING </BEV1/EMLGBSD1_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV1/EMLGBSD1_S>-VKORG = 1.
</BEV1/EMLGBSD1_S>-VTWEG = 1.
</BEV1/EMLGBSD1_S>-SPART = 1.
</BEV1/EMLGBSD1_S>-KTOINH = 1.
</BEV1/EMLGBSD1_S>-KUNAG = 1.

ENDLOOP.

LOOP AT IT_/BEV1/EMLGBSD1_S INTO WA_/BEV1/EMLGBSD1_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV1/EMLGBSD1_S-KUNWE, sy-vline,
  WA_/BEV1/EMLGBSD1_S-KUNRE, sy-vline,
  WA_/BEV1/EMLGBSD1_S-KUNRG, sy-vline,
  WA_/BEV1/EMLGBSD1_S-NAME, sy-vline,
  WA_/BEV1/EMLGBSD1_S-PERIODE, sy-vline,
  WA_/BEV1/EMLGBSD1_S-LGGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV1/EMLGBSD1_S 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_/BEV1/EMLGBSD1_S 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_/BEV1/EMLGBSD1_S INTO WA_/BEV1/EMLGBSD1_S.


*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 KTOINH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/EMLGBSD1_S-KTOINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/EMLGBSD1_S-KTOINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/EMLGBSD1_S-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/EMLGBSD1_S-KUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/EMLGBSD1_S-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/EMLGBSD1_S-KUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/EMLGBSD1_S-KUNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/EMLGBSD1_S-KUNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNRG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/EMLGBSD1_S-KUNRG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/EMLGBSD1_S-KUNRG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/EMLGBSD1_S-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/EMLGBSD1_S-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/EMLGBSD1_S-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/EMLGBSD1_S-MEINS.
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_/BEV1/EMLGBSD1_S_STR, 
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KTOINH TYPE STRING,
KUNAG TYPE STRING,
KUNWE TYPE STRING,
KUNRE TYPE STRING,
KUNRG TYPE STRING,
NAME TYPE STRING,
PERIODE TYPE STRING,
LGGRP TYPE STRING,
MGRPTXT TYPE STRING,
MATNR TYPE STRING,
MATXT TYPE STRING,
PFKBET TYPE STRING,
WAERS TYPE STRING,
ARCHIV TYPE STRING,
BOQ1 TYPE STRING,
BOV1 TYPE STRING,
BOQ2 TYPE STRING,
BOV2 TYPE STRING,
BOQ3 TYPE STRING,
BOV3 TYPE STRING,
BOQ4 TYPE STRING,
BOV4 TYPE STRING,
BOQ5 TYPE STRING,
BOV5 TYPE STRING,
TOQ1 TYPE STRING,
TOV1 TYPE STRING,
TOQ2 TYPE STRING,
TOV2 TYPE STRING,
TOQ3 TYPE STRING,
TOV3 TYPE STRING,
TOQ4 TYPE STRING,
TOV4 TYPE STRING,
TOQ5 TYPE STRING,
TOV5 TYPE STRING,
BNQ1 TYPE STRING,
BNV1 TYPE STRING,
BNQ2 TYPE STRING,
BNV2 TYPE STRING,
BNQ3 TYPE STRING,
BNV3 TYPE STRING,
BNQ4 TYPE STRING,
BNV4 TYPE STRING,
BNQ5 TYPE STRING,
BNV5 TYPE STRING,
AEDAT TYPE STRING,
AEZET TYPE STRING,
MEINS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV1/EMLGBSD1_S_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_/BEV1/EMLGBSD1_S_STR-VKORG sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-VTWEG sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-SPART sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-KTOINH sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-KUNAG sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-KUNWE sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-KUNRE sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-KUNRG sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-NAME sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-PERIODE sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-LGGRP sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-MGRPTXT sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-MATNR sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-MATXT sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-PFKBET sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-WAERS sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-ARCHIV sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOQ1 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOV1 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOQ2 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOV2 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOQ3 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOV3 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOQ4 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOV4 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOQ5 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BOV5 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOQ1 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOV1 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOQ2 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOV2 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOQ3 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOV3 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOQ4 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOV4 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOQ5 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-TOV5 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNQ1 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNV1 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNQ2 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNV2 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNQ3 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNV3 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNQ4 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNV4 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNQ5 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-BNV5 sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-AEDAT sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-AEZET sy-vline 
WA_/BEV1/EMLGBSD1_S_STR-MEINS sy-vline      INTO ld_text SEPARATED BY SPACE.

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