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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/PROMBASE
*  INTO TABLE @DATA(IT_/SAPAPO/PROMBASE2).
*--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/PROMBASE INDEX 1 INTO DATA(WA_/SAPAPO/PROMBASE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/PROMBASE ASSIGNING </SAPAPO/PROMBASE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/PROMBASE>-MANDT = 1.
</SAPAPO/PROMBASE>-PROMBASE = 1.
</SAPAPO/PROMBASE>-PAREAID = 1.
</SAPAPO/PROMBASE>-STARTDATE = 1.
</SAPAPO/PROMBASE>-ENDDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/PROMBASE-PROMKF, sy-vline,
  WA_/SAPAPO/PROMBASE-CHARNAME1, sy-vline,
  WA_/SAPAPO/PROMBASE-CHARNAME2, sy-vline,
  WA_/SAPAPO/PROMBASE-CHARNAME3, sy-vline,
  WA_/SAPAPO/PROMBASE-CHARNAME4, sy-vline,
  WA_/SAPAPO/PROMBASE-CHARNAME5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/PROMBASE 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/PROMBASE 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/PROMBASE INTO WA_/SAPAPO/PROMBASE.


*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 PARE2, internal->external for field PAREAID
CALL FUNCTION 'CONVERSION_EXIT_PARE2_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PROMBASE-PAREAID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PROMBASE-PAREAID.
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_/SAPAPO/PROMBASE_STR, 
MANDT TYPE STRING,
PROMBASE TYPE STRING,
PAREAID TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
PROMKF TYPE STRING,
CHARNAME1 TYPE STRING,
CHARNAME2 TYPE STRING,
CHARNAME3 TYPE STRING,
CHARNAME4 TYPE STRING,
CHARNAME5 TYPE STRING,
CHARNAME6 TYPE STRING,
CHARNAME7 TYPE STRING,
CHARNAME8 TYPE STRING,
CHARNAME9 TYPE STRING,
CHARNAME10 TYPE STRING,
CHARNAME11 TYPE STRING,
CHARNAME12 TYPE STRING,
CHARNAME13 TYPE STRING,
CHARNAME14 TYPE STRING,
CHARNAME15 TYPE STRING,
CHARNAME16 TYPE STRING,
CHARNAME17 TYPE STRING,
CHARNAME18 TYPE STRING,
CHARNAME19 TYPE STRING,
CHARNAME20 TYPE STRING,
CDAT TYPE STRING,
CTIME TYPE STRING,
AUTOR TYPE STRING,
UDAT TYPE STRING,
UPNAM TYPE STRING,
UTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/PROMBASE_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/PROMBASE_STR-MANDT sy-vline 
WA_/SAPAPO/PROMBASE_STR-PROMBASE sy-vline 
WA_/SAPAPO/PROMBASE_STR-PAREAID sy-vline 
WA_/SAPAPO/PROMBASE_STR-STARTDATE sy-vline 
WA_/SAPAPO/PROMBASE_STR-ENDDATE sy-vline 
WA_/SAPAPO/PROMBASE_STR-PROMKF sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME1 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME2 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME3 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME4 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME5 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME6 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME7 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME8 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME9 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME10 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME11 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME12 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME13 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME14 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME15 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME16 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME17 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME18 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME19 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CHARNAME20 sy-vline 
WA_/SAPAPO/PROMBASE_STR-CDAT sy-vline 
WA_/SAPAPO/PROMBASE_STR-CTIME sy-vline 
WA_/SAPAPO/PROMBASE_STR-AUTOR sy-vline 
WA_/SAPAPO/PROMBASE_STR-UDAT sy-vline 
WA_/SAPAPO/PROMBASE_STR-UPNAM sy-vline 
WA_/SAPAPO/PROMBASE_STR-UTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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