ABAP Select data from SAP table ACES_DIS_POSTINGS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ACES_DIS_POSTINGS 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 ACES_DIS_POSTINGS. 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 ACES_DIS_POSTINGS 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_ACES_DIS_POSTINGS TYPE STANDARD TABLE OF ACES_DIS_POSTINGS,
      WA_ACES_DIS_POSTINGS TYPE ACES_DIS_POSTINGS,
      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: <ACES_DIS_POSTINGS> TYPE ACES_DIS_POSTINGS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACES_DIS_POSTINGS
*  INTO TABLE @DATA(IT_ACES_DIS_POSTINGS2).
*--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_ACES_DIS_POSTINGS INDEX 1 INTO DATA(WA_ACES_DIS_POSTINGS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACES_DIS_POSTINGS>-BUKRS = 1.
<ACES_DIS_POSTINGS>-COMP = 1.
<ACES_DIS_POSTINGS>-LOGSYS = 1.
<ACES_DIS_POSTINGS>-REF_KEY = 1.
<ACES_DIS_POSTINGS>-REF_SUBKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACES_DIS_POSTINGS-ITEMTYPE, sy-vline,
  WA_ACES_DIS_POSTINGS-LDGRP, sy-vline,
  WA_ACES_DIS_POSTINGS-RLDNR, sy-vline,
  WA_ACES_DIS_POSTINGS-GJAHR, sy-vline,
  WA_ACES_DIS_POSTINGS-BELNR, sy-vline,
  WA_ACES_DIS_POSTINGS-DOCLN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACES_DIS_POSTINGS 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_ACES_DIS_POSTINGS 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_ACES_DIS_POSTINGS INTO WA_ACES_DIS_POSTINGS.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_POSTINGS-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_POSTINGS-LOGSYS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_POSTINGS-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_POSTINGS-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_POSTINGS-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_POSTINGS-RYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_POSTINGS-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_POSTINGS-RUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_POSTINGS-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_POSTINGS-AWREF.
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_ACES_DIS_POSTINGS_STR, 
BUKRS TYPE STRING,
COMP TYPE STRING,
LOGSYS TYPE STRING,
REF_KEY TYPE STRING,
REF_SUBKEY TYPE STRING,
ITEMTYPE TYPE STRING,
LDGRP TYPE STRING,
RLDNR TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
DOCLN TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
DOCNR_LD TYPE STRING,
RRCTY TYPE STRING,
SLALITTYPE TYPE STRING,
TTYPE TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
AWITGRP TYPE STRING,
BLART TYPE STRING,
ACRVALDAT TYPE STRING,
RWCUR TYPE STRING,
RHCUR TYPE STRING,
RKCUR TYPE STRING,
ROCUR TYPE STRING,
RVCUR TYPE STRING,
RBCUR TYPE STRING,
RCCUR TYPE STRING,
RDCUR TYPE STRING,
RECUR TYPE STRING,
RFCUR TYPE STRING,
RGCUR TYPE STRING,
WSL TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
OSL TYPE STRING,
VSL TYPE STRING,
BSL TYPE STRING,
CSL TYPE STRING,
DSL TYPE STRING,
ESL TYPE STRING,
FSL TYPE STRING,
GSL TYPE STRING,
RUNIT TYPE STRING,
MSL TYPE STRING,
MIG_SOURCE TYPE STRING,
TIMESTAMP TYPE STRING,
AWTYP TYPE STRING,
AWSYS TYPE STRING,
AWORG TYPE STRING,
AWREF TYPE STRING,
RMVCT TYPE STRING,
PEROP_BEG TYPE STRING,
PEROP_END TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACES_DIS_POSTINGS_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_ACES_DIS_POSTINGS_STR-BUKRS sy-vline 
WA_ACES_DIS_POSTINGS_STR-COMP sy-vline 
WA_ACES_DIS_POSTINGS_STR-LOGSYS sy-vline 
WA_ACES_DIS_POSTINGS_STR-REF_KEY sy-vline 
WA_ACES_DIS_POSTINGS_STR-REF_SUBKEY sy-vline 
WA_ACES_DIS_POSTINGS_STR-ITEMTYPE sy-vline 
WA_ACES_DIS_POSTINGS_STR-LDGRP sy-vline 
WA_ACES_DIS_POSTINGS_STR-RLDNR sy-vline 
WA_ACES_DIS_POSTINGS_STR-GJAHR sy-vline 
WA_ACES_DIS_POSTINGS_STR-BELNR sy-vline 
WA_ACES_DIS_POSTINGS_STR-DOCLN sy-vline 
WA_ACES_DIS_POSTINGS_STR-RYEAR sy-vline 
WA_ACES_DIS_POSTINGS_STR-POPER sy-vline 
WA_ACES_DIS_POSTINGS_STR-DOCNR_LD sy-vline 
WA_ACES_DIS_POSTINGS_STR-RRCTY sy-vline 
WA_ACES_DIS_POSTINGS_STR-SLALITTYPE sy-vline 
WA_ACES_DIS_POSTINGS_STR-TTYPE sy-vline 
WA_ACES_DIS_POSTINGS_STR-BLDAT sy-vline 
WA_ACES_DIS_POSTINGS_STR-BUDAT sy-vline 
WA_ACES_DIS_POSTINGS_STR-AWITGRP sy-vline 
WA_ACES_DIS_POSTINGS_STR-BLART sy-vline 
WA_ACES_DIS_POSTINGS_STR-ACRVALDAT sy-vline 
WA_ACES_DIS_POSTINGS_STR-RWCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RHCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RKCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-ROCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RVCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RBCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RCCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RDCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RECUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RFCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-RGCUR sy-vline 
WA_ACES_DIS_POSTINGS_STR-WSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-HSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-KSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-OSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-VSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-BSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-CSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-DSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-ESL sy-vline 
WA_ACES_DIS_POSTINGS_STR-FSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-GSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-RUNIT sy-vline 
WA_ACES_DIS_POSTINGS_STR-MSL sy-vline 
WA_ACES_DIS_POSTINGS_STR-MIG_SOURCE sy-vline 
WA_ACES_DIS_POSTINGS_STR-TIMESTAMP sy-vline 
WA_ACES_DIS_POSTINGS_STR-AWTYP sy-vline 
WA_ACES_DIS_POSTINGS_STR-AWSYS sy-vline 
WA_ACES_DIS_POSTINGS_STR-AWORG sy-vline 
WA_ACES_DIS_POSTINGS_STR-AWREF sy-vline 
WA_ACES_DIS_POSTINGS_STR-RMVCT sy-vline 
WA_ACES_DIS_POSTINGS_STR-PEROP_BEG sy-vline 
WA_ACES_DIS_POSTINGS_STR-PEROP_END sy-vline      INTO ld_text SEPARATED BY SPACE.

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