ABAP Select data from SAP table DETAIL_JOA_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DETAIL_JOA_LIST
*  INTO TABLE @DATA(IT_DETAIL_JOA_LIST2).
*--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_DETAIL_JOA_LIST INDEX 1 INTO DATA(WA_DETAIL_JOA_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DETAIL_JOA_LIST>-COUNTER = 1.
<DETAIL_JOA_LIST>-JOA = 1.
<DETAIL_JOA_LIST>-JTEXT = 1.
<DETAIL_JOA_LIST>-ACLASS = 1.
<DETAIL_JOA_LIST>-CONTRACT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DETAIL_JOA_LIST-CONRULE, sy-vline,
  WA_DETAIL_JOA_LIST-XSETCON, sy-vline,
  WA_DETAIL_JOA_LIST-CATRULE, sy-vline,
  WA_DETAIL_JOA_LIST-XSETCAT, sy-vline,
  WA_DETAIL_JOA_LIST-SEQNUM, sy-vline,
  WA_DETAIL_JOA_LIST-PROJ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DETAIL_JOA_LIST 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_DETAIL_JOA_LIST 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_DETAIL_JOA_LIST INTO WA_DETAIL_JOA_LIST.


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

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

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

*Conversion exit ABPSN, internal->external for field PROJ
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_DETAIL_JOA_LIST-PROJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DETAIL_JOA_LIST-PROJ.
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_DETAIL_JOA_LIST_STR, 
COUNTER TYPE STRING,
JOA TYPE STRING,
JTEXT TYPE STRING,
ACLASS TYPE STRING,
CONTRACT TYPE STRING,
CONRULE TYPE STRING,
XSETCON TYPE STRING,
CATRULE TYPE STRING,
XSETCAT TYPE STRING,
SEQNUM TYPE STRING,
PROJ TYPE STRING,
STEPTYP TYPE STRING,
XSET TYPE STRING,
XSET2 TYPE STRING,
OVRPER TYPE STRING,
OVRRULE TYPE STRING,
PER1 TYPE STRING,
PER2 TYPE STRING,
XPER1 TYPE STRING,
XPER2 TYPE STRING,
PAYSET TYPE STRING,
RATETYPE TYPE STRING,
RATETYPER TYPE STRING,
RATETYTEXT TYPE STRING,
DRSTAT TYPE STRING,
RATE TYPE STRING,
CURRENCY_FOR_RATE TYPE STRING,
DRILL_FRDEPTH TYPE STRING,
DRILL_TODEPTH TYPE STRING,
PRSTAT TYPE STRING,
PRO_FRDEPTH TYPE STRING,
PRO_TODEPTH TYPE STRING,
SEQNUM2 TYPE STRING,
THRESHOLD TYPE STRING,
CURRENCY_TH TYPE STRING,
RATE2 TYPE STRING,
CURRENCY_RATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DETAIL_JOA_LIST_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_DETAIL_JOA_LIST_STR-COUNTER sy-vline 
WA_DETAIL_JOA_LIST_STR-JOA sy-vline 
WA_DETAIL_JOA_LIST_STR-JTEXT sy-vline 
WA_DETAIL_JOA_LIST_STR-ACLASS sy-vline 
WA_DETAIL_JOA_LIST_STR-CONTRACT sy-vline 
WA_DETAIL_JOA_LIST_STR-CONRULE sy-vline 
WA_DETAIL_JOA_LIST_STR-XSETCON sy-vline 
WA_DETAIL_JOA_LIST_STR-CATRULE sy-vline 
WA_DETAIL_JOA_LIST_STR-XSETCAT sy-vline 
WA_DETAIL_JOA_LIST_STR-SEQNUM sy-vline 
WA_DETAIL_JOA_LIST_STR-PROJ sy-vline 
WA_DETAIL_JOA_LIST_STR-STEPTYP sy-vline 
WA_DETAIL_JOA_LIST_STR-XSET sy-vline 
WA_DETAIL_JOA_LIST_STR-XSET2 sy-vline 
WA_DETAIL_JOA_LIST_STR-OVRPER sy-vline 
WA_DETAIL_JOA_LIST_STR-OVRRULE sy-vline 
WA_DETAIL_JOA_LIST_STR-PER1 sy-vline 
WA_DETAIL_JOA_LIST_STR-PER2 sy-vline 
WA_DETAIL_JOA_LIST_STR-XPER1 sy-vline 
WA_DETAIL_JOA_LIST_STR-XPER2 sy-vline 
WA_DETAIL_JOA_LIST_STR-PAYSET sy-vline 
WA_DETAIL_JOA_LIST_STR-RATETYPE sy-vline 
WA_DETAIL_JOA_LIST_STR-RATETYPER sy-vline 
WA_DETAIL_JOA_LIST_STR-RATETYTEXT sy-vline 
WA_DETAIL_JOA_LIST_STR-DRSTAT sy-vline 
WA_DETAIL_JOA_LIST_STR-RATE sy-vline 
WA_DETAIL_JOA_LIST_STR-CURRENCY_FOR_RATE sy-vline 
WA_DETAIL_JOA_LIST_STR-DRILL_FRDEPTH sy-vline 
WA_DETAIL_JOA_LIST_STR-DRILL_TODEPTH sy-vline 
WA_DETAIL_JOA_LIST_STR-PRSTAT sy-vline 
WA_DETAIL_JOA_LIST_STR-PRO_FRDEPTH sy-vline 
WA_DETAIL_JOA_LIST_STR-PRO_TODEPTH sy-vline 
WA_DETAIL_JOA_LIST_STR-SEQNUM2 sy-vline 
WA_DETAIL_JOA_LIST_STR-THRESHOLD sy-vline 
WA_DETAIL_JOA_LIST_STR-CURRENCY_TH sy-vline 
WA_DETAIL_JOA_LIST_STR-RATE2 sy-vline 
WA_DETAIL_JOA_LIST_STR-CURRENCY_RATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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