ABAP Select data from SAP table RLACSTHDDIA into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RLACSTHDDIA
*  INTO TABLE @DATA(IT_RLACSTHDDIA2).
*--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_RLACSTHDDIA INDEX 1 INTO DATA(WA_RLACSTHDDIA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RLACSTHDDIA>-MANDT = 1.
<RLACSTHDDIA>-ACSTNO = 1.
<RLACSTHDDIA>-CHNGTYPE = 1.
<RLACSTHDDIA>-TRMNO_INT = 1.
<RLACSTHDDIA>-PARTNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RLACSTHDDIA-CUSTNO_PR, sy-vline,
  WA_RLACSTHDDIA-SUPPNO_PR, sy-vline,
  WA_RLACSTHDDIA-MATCUSTNO, sy-vline,
  WA_RLACSTHDDIA-MATSUPPNO, sy-vline,
  WA_RLACSTHDDIA-MATGR, sy-vline,
  WA_RLACSTHDDIA-BALDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RLACSTHDDIA 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_RLACSTHDDIA 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_RLACSTHDDIA INTO WA_RLACSTHDDIA.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field TRMNO_EXT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RLACSTHDDIA-TRMNO_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLACSTHDDIA-TRMNO_EXT.
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_RLACSTHDDIA_STR, 
MANDT TYPE STRING,
ACSTNO TYPE STRING,
CHNGTYPE TYPE STRING,
TRMNO_INT TYPE STRING,
PARTNO TYPE STRING,
CUSTNO_PR TYPE STRING,
SUPPNO_PR TYPE STRING,
MATCUSTNO TYPE STRING,
MATSUPPNO TYPE STRING,
MATGR TYPE STRING,
BALDATE TYPE STRING,
BAL TYPE STRING,
ACSTUM TYPE STRING,
BALDATE_OLD TYPE STRING,
BAL_OLD TYPE STRING,
ACCTNO TYPE STRING,
ACCTNO_S TYPE STRING,
CPSTATEHD TYPE STRING,
ACCTBAL TYPE STRING,
ACCTME TYPE STRING,
MEINS TYPE STRING,
BUKRS TYPE STRING,
RET_MATNR TYPE STRING,
MAKTX TYPE STRING,
TRMNO_EXT TYPE STRING,
PARTYP TYPE STRING,
PARNO TYPE STRING,
ACMAN TYPE STRING,
ACMANTY TYPE STRING,
ACHOL TYPE STRING,
ACHOLTY TYPE STRING,
ACMAN_NAME1 TYPE STRING,
ACMAN_ORT01 TYPE STRING,
ACHOL_NAME1 TYPE STRING,
ACHOL_ORT01 TYPE STRING,
LIGHTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RLACSTHDDIA_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_RLACSTHDDIA_STR-MANDT sy-vline 
WA_RLACSTHDDIA_STR-ACSTNO sy-vline 
WA_RLACSTHDDIA_STR-CHNGTYPE sy-vline 
WA_RLACSTHDDIA_STR-TRMNO_INT sy-vline 
WA_RLACSTHDDIA_STR-PARTNO sy-vline 
WA_RLACSTHDDIA_STR-CUSTNO_PR sy-vline 
WA_RLACSTHDDIA_STR-SUPPNO_PR sy-vline 
WA_RLACSTHDDIA_STR-MATCUSTNO sy-vline 
WA_RLACSTHDDIA_STR-MATSUPPNO sy-vline 
WA_RLACSTHDDIA_STR-MATGR sy-vline 
WA_RLACSTHDDIA_STR-BALDATE sy-vline 
WA_RLACSTHDDIA_STR-BAL sy-vline 
WA_RLACSTHDDIA_STR-ACSTUM sy-vline 
WA_RLACSTHDDIA_STR-BALDATE_OLD sy-vline 
WA_RLACSTHDDIA_STR-BAL_OLD sy-vline 
WA_RLACSTHDDIA_STR-ACCTNO sy-vline 
WA_RLACSTHDDIA_STR-ACCTNO_S sy-vline 
WA_RLACSTHDDIA_STR-CPSTATEHD sy-vline 
WA_RLACSTHDDIA_STR-ACCTBAL sy-vline 
WA_RLACSTHDDIA_STR-ACCTME sy-vline 
WA_RLACSTHDDIA_STR-MEINS sy-vline 
WA_RLACSTHDDIA_STR-BUKRS sy-vline 
WA_RLACSTHDDIA_STR-RET_MATNR sy-vline 
WA_RLACSTHDDIA_STR-MAKTX sy-vline 
WA_RLACSTHDDIA_STR-TRMNO_EXT sy-vline 
WA_RLACSTHDDIA_STR-PARTYP sy-vline 
WA_RLACSTHDDIA_STR-PARNO sy-vline 
WA_RLACSTHDDIA_STR-ACMAN sy-vline 
WA_RLACSTHDDIA_STR-ACMANTY sy-vline 
WA_RLACSTHDDIA_STR-ACHOL sy-vline 
WA_RLACSTHDDIA_STR-ACHOLTY sy-vline 
WA_RLACSTHDDIA_STR-ACMAN_NAME1 sy-vline 
WA_RLACSTHDDIA_STR-ACMAN_ORT01 sy-vline 
WA_RLACSTHDDIA_STR-ACHOL_NAME1 sy-vline 
WA_RLACSTHDDIA_STR-ACHOL_ORT01 sy-vline 
WA_RLACSTHDDIA_STR-LIGHTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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