ABAP Select data from SAP table /SAPAPO/MC01_REF_STRUC into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/MC01_REF_STRUC 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 /SAPAPO/MC01_REF_STRUC. 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 /SAPAPO/MC01_REF_STRUC 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_/SAPAPO/MC01_REF_STRUC TYPE STANDARD TABLE OF /SAPAPO/MC01_REF_STRUC,
      WA_/SAPAPO/MC01_REF_STRUC TYPE /SAPAPO/MC01_REF_STRUC,
      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: </SAPAPO/MC01_REF_STRUC> TYPE /SAPAPO/MC01_REF_STRUC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPAPO/MC01_REF_STRUC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/MC01_REF_STRUC
  INTO TABLE IT_/SAPAPO/MC01_REF_STRUC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/MC01_REF_STRUC
*  INTO TABLE @DATA(IT_/SAPAPO/MC01_REF_STRUC2).
*--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_/SAPAPO/MC01_REF_STRUC INDEX 1 INTO DATA(WA_/SAPAPO/MC01_REF_STRUC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/MC01_REF_STRUC ASSIGNING </SAPAPO/MC01_REF_STRUC>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/MC01_REF_STRUC>-NUMERIC_15_3 = 1.
</SAPAPO/MC01_REF_STRUC>-CHAR01 = 1.
</SAPAPO/MC01_REF_STRUC>-CHAR02 = 1.
</SAPAPO/MC01_REF_STRUC>-CHAR03 = 1.
</SAPAPO/MC01_REF_STRUC>-CHAR04 = 1.
ENDLOOP.

LOOP AT IT_/SAPAPO/MC01_REF_STRUC INTO WA_/SAPAPO/MC01_REF_STRUC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/MC01_REF_STRUC-CHAR05, sy-vline,
WA_/SAPAPO/MC01_REF_STRUC-CHAR06, sy-vline,
WA_/SAPAPO/MC01_REF_STRUC-CHAR07, sy-vline,
WA_/SAPAPO/MC01_REF_STRUC-CHAR08, sy-vline,
WA_/SAPAPO/MC01_REF_STRUC-CHAR08C, sy-vline,
WA_/SAPAPO/MC01_REF_STRUC-CHAR09, sy-vline.
ENDLOOP. *Add any further fields from structure WA_/SAPAPO/MC01_REF_STRUC 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_/SAPAPO/MC01_REF_STRUC 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_/SAPAPO/MC01_REF_STRUC INTO WA_/SAPAPO/MC01_REF_STRUC. *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_/SAPAPO/MC01_REF_STRUC_STR,
NUMERIC_15_3 TYPE STRING,
CHAR01 TYPE STRING,
CHAR02 TYPE STRING,
CHAR03 TYPE STRING,
CHAR04 TYPE STRING,
CHAR05 TYPE STRING,
CHAR06 TYPE STRING,
CHAR07 TYPE STRING,
CHAR08 TYPE STRING,
CHAR08C TYPE STRING,
CHAR09 TYPE STRING,
CHAR10 TYPE STRING,
CHAR11 TYPE STRING,
CHAR12 TYPE STRING,
CHAR13 TYPE STRING,
CHAR14 TYPE STRING,
CHAR15 TYPE STRING,
CHAR16 TYPE STRING,
CHAR17 TYPE STRING,
CHAR18 TYPE STRING,
CHAR19 TYPE STRING,
CHAR20 TYPE STRING,
CHAR21 TYPE STRING,
CHAR22 TYPE STRING,
CHAR23 TYPE STRING,
CHAR24 TYPE STRING,
CHAR25 TYPE STRING,
CHAR26 TYPE STRING,
CHAR27 TYPE STRING,
CHAR28 TYPE STRING,
CHAR29 TYPE STRING,
CHAR30 TYPE STRING,
CHAR31 TYPE STRING,
CHAR32 TYPE STRING,
CHAR33 TYPE STRING,
CHAR34 TYPE STRING,
CHAR35 TYPE STRING,
CHAR36 TYPE STRING,
CHAR37 TYPE STRING,
CHAR38 TYPE STRING,
CHAR39 TYPE STRING,
CHAR40 TYPE STRING,
CHAR48 TYPE STRING,
DATE_REF TYPE STRING,
TIME_REF TYPE STRING,END OF T_EKKO_STR. DATA: WA_/SAPAPO/MC01_REF_STRUC_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_/SAPAPO/MC01_REF_STRUC_STR-NUMERIC_15_3 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR01 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR02 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR03 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR04 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR05 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR06 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR07 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR08 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR08C sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR09 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR10 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR11 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR12 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR13 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR14 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR15 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR16 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR17 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR18 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR19 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR20 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR21 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR22 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR23 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR24 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR25 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR26 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR27 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR28 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR29 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR30 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR31 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR32 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR33 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR34 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR35 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR36 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR37 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR38 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR39 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR40 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-CHAR48 sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-DATE_REF sy-vline
WA_/SAPAPO/MC01_REF_STRUC_STR-TIME_REF sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.