ABAP Select data from SAP table ESLL_PLUS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESLL_PLUS
*  INTO TABLE @DATA(IT_ESLL_PLUS2).
*--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_ESLL_PLUS INDEX 1 INTO DATA(WA_ESLL_PLUS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESLL_PLUS>-SDATE = 1.
<ESLL_PLUS>-BEGTIME = 1.
<ESLL_PLUS>-ENDTIME = 1.
<ESLL_PLUS>-PERSEXT = 1.
<ESLL_PLUS>-CATSCOUNTE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESLL_PLUS-STOKZ, sy-vline,
  WA_ESLL_PLUS-BELNR, sy-vline,
  WA_ESLL_PLUS-FORMELNR, sy-vline,
  WA_ESLL_PLUS-FRMVAL1, sy-vline,
  WA_ESLL_PLUS-FRMVAL2, sy-vline,
  WA_ESLL_PLUS-FRMVAL3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESLL_PLUS 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_ESLL_PLUS 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_ESLL_PLUS INTO WA_ESLL_PLUS.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESLL_PLUS-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESLL_PLUS-BELNR.
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_ESLL_PLUS_STR, 
SDATE TYPE STRING,
BEGTIME TYPE STRING,
ENDTIME TYPE STRING,
PERSEXT TYPE STRING,
CATSCOUNTE TYPE STRING,
STOKZ TYPE STRING,
BELNR TYPE STRING,
FORMELNR TYPE STRING,
FRMVAL1 TYPE STRING,
FRMVAL2 TYPE STRING,
FRMVAL3 TYPE STRING,
FRMVAL4 TYPE STRING,
FRMVAL5 TYPE STRING,
USERF1_NUM TYPE STRING,
USERF2_NUM TYPE STRING,
USERF1_TXT TYPE STRING,
USERF2_TXT TYPE STRING,
KNOBJ TYPE STRING,
CHGTEXT TYPE STRING,
KALNR TYPE STRING,
KLVAR TYPE STRING,
EXTDES TYPE STRING,
BOSINTER TYPE STRING,
BOSGRP TYPE STRING,
BOS_RISK TYPE STRING,
BOS_ECP TYPE STRING,
CHGLTEXT TYPE STRING,
BOSGRUPPENR TYPE STRING,
BOSLFDNR TYPE STRING,
BOSDRUKZ TYPE STRING,
BOSSUPPLENO TYPE STRING,
BOSSUPPLESTATUS TYPE STRING,
/SAPBOQ/OBJTYPE TYPE STRING,
/SAPBOQ/SPOSNR TYPE STRING,
/SAPBOQ/MINTROW TYPE STRING,
/SAPBOQ/QT_REL TYPE STRING,
/SAPBOQ/CK_QTY TYPE STRING,
/SAPBOQ/M_FRATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESLL_PLUS_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_ESLL_PLUS_STR-SDATE sy-vline 
WA_ESLL_PLUS_STR-BEGTIME sy-vline 
WA_ESLL_PLUS_STR-ENDTIME sy-vline 
WA_ESLL_PLUS_STR-PERSEXT sy-vline 
WA_ESLL_PLUS_STR-CATSCOUNTE sy-vline 
WA_ESLL_PLUS_STR-STOKZ sy-vline 
WA_ESLL_PLUS_STR-BELNR sy-vline 
WA_ESLL_PLUS_STR-FORMELNR sy-vline 
WA_ESLL_PLUS_STR-FRMVAL1 sy-vline 
WA_ESLL_PLUS_STR-FRMVAL2 sy-vline 
WA_ESLL_PLUS_STR-FRMVAL3 sy-vline 
WA_ESLL_PLUS_STR-FRMVAL4 sy-vline 
WA_ESLL_PLUS_STR-FRMVAL5 sy-vline 
WA_ESLL_PLUS_STR-USERF1_NUM sy-vline 
WA_ESLL_PLUS_STR-USERF2_NUM sy-vline 
WA_ESLL_PLUS_STR-USERF1_TXT sy-vline 
WA_ESLL_PLUS_STR-USERF2_TXT sy-vline 
WA_ESLL_PLUS_STR-KNOBJ sy-vline 
WA_ESLL_PLUS_STR-CHGTEXT sy-vline 
WA_ESLL_PLUS_STR-KALNR sy-vline 
WA_ESLL_PLUS_STR-KLVAR sy-vline 
WA_ESLL_PLUS_STR-EXTDES sy-vline 
WA_ESLL_PLUS_STR-BOSINTER sy-vline 
WA_ESLL_PLUS_STR-BOSGRP sy-vline 
WA_ESLL_PLUS_STR-BOS_RISK sy-vline 
WA_ESLL_PLUS_STR-BOS_ECP sy-vline 
WA_ESLL_PLUS_STR-CHGLTEXT sy-vline 
WA_ESLL_PLUS_STR-BOSGRUPPENR sy-vline 
WA_ESLL_PLUS_STR-BOSLFDNR sy-vline 
WA_ESLL_PLUS_STR-BOSDRUKZ sy-vline 
WA_ESLL_PLUS_STR-BOSSUPPLENO sy-vline 
WA_ESLL_PLUS_STR-BOSSUPPLESTATUS sy-vline 
WA_ESLL_PLUS_STR-/SAPBOQ/OBJTYPE sy-vline 
WA_ESLL_PLUS_STR-/SAPBOQ/SPOSNR sy-vline 
WA_ESLL_PLUS_STR-/SAPBOQ/MINTROW sy-vline 
WA_ESLL_PLUS_STR-/SAPBOQ/QT_REL sy-vline 
WA_ESLL_PLUS_STR-/SAPBOQ/CK_QTY sy-vline 
WA_ESLL_PLUS_STR-/SAPBOQ/M_FRATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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