ABAP Select data from SAP table ACGL_HEAD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ACGL_HEAD 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 ACGL_HEAD. 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 ACGL_HEAD 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_ACGL_HEAD TYPE STANDARD TABLE OF ACGL_HEAD,
      WA_ACGL_HEAD TYPE ACGL_HEAD,
      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: <ACGL_HEAD> TYPE ACGL_HEAD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACGL_HEAD
*  INTO TABLE @DATA(IT_ACGL_HEAD2).
*--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_ACGL_HEAD INDEX 1 INTO DATA(WA_ACGL_HEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACGL_HEAD>-MANDT = 1.
<ACGL_HEAD>-BLDAT = 1.
<ACGL_HEAD>-BUDAT = 1.
<ACGL_HEAD>-XBLNR = 1.
<ACGL_HEAD>-BKTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACGL_HEAD-BLART, sy-vline,
  WA_ACGL_HEAD-BUKRS, sy-vline,
  WA_ACGL_HEAD-XINVR_CURV, sy-vline,
  WA_ACGL_HEAD-KURSF, sy-vline,
  WA_ACGL_HEAD-WAERS, sy-vline,
  WA_ACGL_HEAD-WWERT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACGL_HEAD 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_ACGL_HEAD 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_ACGL_HEAD INTO WA_ACGL_HEAD.


*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 EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_ACGL_HEAD-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACGL_HEAD-KURSF.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BELNR_0240
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACGL_HEAD-BELNR_0240
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACGL_HEAD-BELNR_0240.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC172, internal->external for field SUMSOLL
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ACGL_HEAD-SUMSOLL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACGL_HEAD-SUMSOLL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field SUMHABEN
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ACGL_HEAD-SUMHABEN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACGL_HEAD-SUMHABEN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KURSX
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_ACGL_HEAD-KURSX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACGL_HEAD-KURSX.
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_ACGL_HEAD_STR, 
MANDT TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
XBLNR TYPE STRING,
BKTXT TYPE STRING,
BLART TYPE STRING,
BUKRS TYPE STRING,
XINVR_CURV TYPE STRING,
KURSF TYPE STRING,
WAERS TYPE STRING,
WWERT TYPE STRING,
LDGRP TYPE STRING,
BVORG TYPE STRING,
BELNR TYPE STRING,
BELNR_0240 TYPE STRING,
NUMPG TYPE STRING,
MONAT TYPE STRING,
BRNCH TYPE STRING,
BLART_TXT TYPE STRING,
BUKRS_TXT TYPE STRING,
WAERS_TXT TYPE STRING,
XMWST TYPE STRING,
GJAHR TYPE STRING,
SUMSOLL TYPE STRING,
SUMHABEN TYPE STRING,
STRUCT TYPE STRING,
AMPEL TYPE STRING,
PARGB TYPE STRING,
HWAER TYPE STRING,
TCODE TYPE STRING,
USNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
AEDAT TYPE STRING,
FRWEG TYPE STRING,
SUBN1_LVL TYPE STRING,
XWFFR TYPE STRING,
XPRFG TYPE STRING,
XFRGE TYPE STRING,
USCMP TYPE STRING,
VATDATE TYPE STRING,
KURSX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACGL_HEAD_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_ACGL_HEAD_STR-MANDT sy-vline 
WA_ACGL_HEAD_STR-BLDAT sy-vline 
WA_ACGL_HEAD_STR-BUDAT sy-vline 
WA_ACGL_HEAD_STR-XBLNR sy-vline 
WA_ACGL_HEAD_STR-BKTXT sy-vline 
WA_ACGL_HEAD_STR-BLART sy-vline 
WA_ACGL_HEAD_STR-BUKRS sy-vline 
WA_ACGL_HEAD_STR-XINVR_CURV sy-vline 
WA_ACGL_HEAD_STR-KURSF sy-vline 
WA_ACGL_HEAD_STR-WAERS sy-vline 
WA_ACGL_HEAD_STR-WWERT sy-vline 
WA_ACGL_HEAD_STR-LDGRP sy-vline 
WA_ACGL_HEAD_STR-BVORG sy-vline 
WA_ACGL_HEAD_STR-BELNR sy-vline 
WA_ACGL_HEAD_STR-BELNR_0240 sy-vline 
WA_ACGL_HEAD_STR-NUMPG sy-vline 
WA_ACGL_HEAD_STR-MONAT sy-vline 
WA_ACGL_HEAD_STR-BRNCH sy-vline 
WA_ACGL_HEAD_STR-BLART_TXT sy-vline 
WA_ACGL_HEAD_STR-BUKRS_TXT sy-vline 
WA_ACGL_HEAD_STR-WAERS_TXT sy-vline 
WA_ACGL_HEAD_STR-XMWST sy-vline 
WA_ACGL_HEAD_STR-GJAHR sy-vline 
WA_ACGL_HEAD_STR-SUMSOLL sy-vline 
WA_ACGL_HEAD_STR-SUMHABEN sy-vline 
WA_ACGL_HEAD_STR-STRUCT sy-vline 
WA_ACGL_HEAD_STR-AMPEL sy-vline 
WA_ACGL_HEAD_STR-PARGB sy-vline 
WA_ACGL_HEAD_STR-HWAER sy-vline 
WA_ACGL_HEAD_STR-TCODE sy-vline 
WA_ACGL_HEAD_STR-USNAM sy-vline 
WA_ACGL_HEAD_STR-CPUDT sy-vline 
WA_ACGL_HEAD_STR-CPUTM sy-vline 
WA_ACGL_HEAD_STR-AEDAT sy-vline 
WA_ACGL_HEAD_STR-FRWEG sy-vline 
WA_ACGL_HEAD_STR-SUBN1_LVL sy-vline 
WA_ACGL_HEAD_STR-XWFFR sy-vline 
WA_ACGL_HEAD_STR-XPRFG sy-vline 
WA_ACGL_HEAD_STR-XFRGE sy-vline 
WA_ACGL_HEAD_STR-USCMP sy-vline 
WA_ACGL_HEAD_STR-VATDATE sy-vline 
WA_ACGL_HEAD_STR-KURSX sy-vline      INTO ld_text SEPARATED BY SPACE.

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