ABAP Select data from SAP table ACMTESTRND1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ACMTESTRND1 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 ACMTESTRND1. 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 ACMTESTRND1 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_ACMTESTRND1 TYPE STANDARD TABLE OF ACMTESTRND1,
      WA_ACMTESTRND1 TYPE ACMTESTRND1,
      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: <ACMTESTRND1> TYPE ACMTESTRND1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ACMTESTRND1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ACMTESTRND1
  INTO TABLE IT_ACMTESTRND1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACMTESTRND1
*  INTO TABLE @DATA(IT_ACMTESTRND12).
*--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_ACMTESTRND1 INDEX 1 INTO DATA(WA_ACMTESTRND12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ACMTESTRND1 ASSIGNING <ACMTESTRND1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACMTESTRND1>-ID = 1.
<ACMTESTRND1>-CHAR10 = 1.
<ACMTESTRND1>-INT1 = 1.
<ACMTESTRND1>-INT4 = 1.
<ACMTESTRND1>-SSTRING10 = 1.

ENDLOOP.

LOOP AT IT_ACMTESTRND1 INTO WA_ACMTESTRND1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACMTESTRND1-SSTRING1333, sy-vline,
  WA_ACMTESTRND1-DEC_5_2, sy-vline,
  WA_ACMTESTRND1-D16N, sy-vline,
  WA_ACMTESTRND1-D34N, sy-vline,
  WA_ACMTESTRND1-DATS, sy-vline,
  WA_ACMTESTRND1-FLTPFIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACMTESTRND1 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_ACMTESTRND1 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_ACMTESTRND1 INTO WA_ACMTESTRND1.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_ACMTESTRND1_STR, 
ID TYPE STRING,
CHAR10 TYPE STRING,
INT1 TYPE STRING,
INT4 TYPE STRING,
SSTRING10 TYPE STRING,
SSTRING1333 TYPE STRING,
DEC_5_2 TYPE STRING,
D16N TYPE STRING,
D34N TYPE STRING,
DATS TYPE STRING,
FLTPFIELD TYPE STRING,
UTCLONG TYPE STRING,
DATN TYPE STRING,
TIMN TYPE STRING,
USERNAME TYPE STRING,
GUID TYPE STRING,
E2_ID TYPE STRING,
E3_ID TYPE STRING,
E4_ID TYPE STRING,
IN1OUT2IN3OUT4 TYPE STRING,
ACMCHAR6 TYPE STRING,
ACMCHAR4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACMTESTRND1_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_ACMTESTRND1_STR-ID sy-vline 
WA_ACMTESTRND1_STR-CHAR10 sy-vline 
WA_ACMTESTRND1_STR-INT1 sy-vline 
WA_ACMTESTRND1_STR-INT4 sy-vline 
WA_ACMTESTRND1_STR-SSTRING10 sy-vline 
WA_ACMTESTRND1_STR-SSTRING1333 sy-vline 
WA_ACMTESTRND1_STR-DEC_5_2 sy-vline 
WA_ACMTESTRND1_STR-D16N sy-vline 
WA_ACMTESTRND1_STR-D34N sy-vline 
WA_ACMTESTRND1_STR-DATS sy-vline 
WA_ACMTESTRND1_STR-FLTPFIELD sy-vline 
WA_ACMTESTRND1_STR-UTCLONG sy-vline 
WA_ACMTESTRND1_STR-DATN sy-vline 
WA_ACMTESTRND1_STR-TIMN sy-vline 
WA_ACMTESTRND1_STR-USERNAME sy-vline 
WA_ACMTESTRND1_STR-GUID sy-vline 
WA_ACMTESTRND1_STR-E2_ID sy-vline 
WA_ACMTESTRND1_STR-E3_ID sy-vline 
WA_ACMTESTRND1_STR-E4_ID sy-vline 
WA_ACMTESTRND1_STR-IN1OUT2IN3OUT4 sy-vline 
WA_ACMTESTRND1_STR-ACMCHAR6 sy-vline 
WA_ACMTESTRND1_STR-ACMCHAR4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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