ABAP Select data from SAP table /SMERP/PM_EQUI_LSET_CL_ESF_STR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SMERP/PM_EQUI_LSET_CL_ESF_STR
*  INTO TABLE @DATA(IT_/SMERP/PM_EQUI_LSET_CL_ESF_STR2).
*--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_/SMERP/PM_EQUI_LSET_CL_ESF_STR INDEX 1 INTO DATA(WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SMERP/PM_EQUI_LSET_CL_ESF_STR>-EQUNR = 1.
</SMERP/PM_EQUI_LSET_CL_ESF_STR>-OBJEK = 1.
</SMERP/PM_EQUI_LSET_CL_ESF_STR>-MAFID = 1.
</SMERP/PM_EQUI_LSET_CL_ESF_STR>-KLART = 1.
</SMERP/PM_EQUI_LSET_CL_ESF_STR>-CLINT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-ADZHL, sy-vline,
  WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-ZAEHL, sy-vline,
  WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-STATU, sy-vline,
  WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-STDCL, sy-vline,
  WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-REKRI, sy-vline,
  WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-AENNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR 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_/SMERP/PM_EQUI_LSET_CL_ESF_STR 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_/SMERP/PM_EQUI_LSET_CL_ESF_STR INTO WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR.


*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 EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR-AENNR.
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_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR, 
EQUNR TYPE STRING,
OBJEK TYPE STRING,
MAFID TYPE STRING,
KLART TYPE STRING,
CLINT TYPE STRING,
ADZHL TYPE STRING,
ZAEHL TYPE STRING,
STATU TYPE STRING,
STDCL TYPE STRING,
REKRI TYPE STRING,
AENNR TYPE STRING,
DATUV TYPE STRING,
LKENZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_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_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-EQUNR sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-OBJEK sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-MAFID sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-KLART sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-CLINT sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-ADZHL sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-ZAEHL sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-STATU sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-STDCL sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-REKRI sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-AENNR sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-DATUV sy-vline 
WA_/SMERP/PM_EQUI_LSET_CL_ESF_STR_STR-LKENZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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