SAP MAO_APP_DFLT ABAP Select data from SAP table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MAO_APP_DFLT
*  INTO TABLE @DATA(IT_MAO_APP_DFLT2).
*--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_MAO_APP_DFLT INDEX 1 INTO DATA(WA_MAO_APP_DFLT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MAO_APP_DFLT>-MANDT = 1.
<MAO_APP_DFLT>-MOBILE_APP = 1.
<MAO_APP_DFLT>-AUART = 1.
<MAO_APP_DFLT>-QMART = 1.
<MAO_APP_DFLT>-IWERK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MAO_APP_DFLT-INGRP, sy-vline,
  WA_MAO_APP_DFLT-GEWRK, sy-vline,
  WA_MAO_APP_DFLT-WERKS, sy-vline,
  WA_MAO_APP_DFLT-KOSTL, sy-vline,
  WA_MAO_APP_DFLT-KOKRS, sy-vline,
  WA_MAO_APP_DFLT-MATKL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MAO_APP_DFLT 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_MAO_APP_DFLT 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_MAO_APP_DFLT INTO WA_MAO_APP_DFLT.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAO_APP_DFLT-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAO_APP_DFLT-KOSTL.
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_MAO_APP_DFLT_STR, 
MANDT TYPE STRING,
MOBILE_APP TYPE STRING,
AUART TYPE STRING,
QMART TYPE STRING,
IWERK TYPE STRING,
INGRP TYPE STRING,
GEWRK TYPE STRING,
WERKS TYPE STRING,
KOSTL TYPE STRING,
KOKRS TYPE STRING,
MATKL TYPE STRING,
MPOINT_ONLY TYPE STRING,
MDOC_HIST TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_TS TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_TS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MAO_APP_DFLT_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_MAO_APP_DFLT_STR-MANDT sy-vline 
WA_MAO_APP_DFLT_STR-MOBILE_APP sy-vline 
WA_MAO_APP_DFLT_STR-AUART sy-vline 
WA_MAO_APP_DFLT_STR-QMART sy-vline 
WA_MAO_APP_DFLT_STR-IWERK sy-vline 
WA_MAO_APP_DFLT_STR-INGRP sy-vline 
WA_MAO_APP_DFLT_STR-GEWRK sy-vline 
WA_MAO_APP_DFLT_STR-WERKS sy-vline 
WA_MAO_APP_DFLT_STR-KOSTL sy-vline 
WA_MAO_APP_DFLT_STR-KOKRS sy-vline 
WA_MAO_APP_DFLT_STR-MATKL sy-vline 
WA_MAO_APP_DFLT_STR-MPOINT_ONLY sy-vline 
WA_MAO_APP_DFLT_STR-MDOC_HIST sy-vline 
WA_MAO_APP_DFLT_STR-CREATED_BY sy-vline 
WA_MAO_APP_DFLT_STR-CREATED_TS sy-vline 
WA_MAO_APP_DFLT_STR-CHANGED_BY sy-vline 
WA_MAO_APP_DFLT_STR-CHANGED_TS sy-vline      INTO ld_text SEPARATED BY SPACE.

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

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