ABAP Select data from SAP table MCLIPSWWS into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MCLIPSWWS 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 MCLIPSWWS. 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 MCLIPSWWS 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_MCLIPSWWS TYPE STANDARD TABLE OF MCLIPSWWS,
      WA_MCLIPSWWS TYPE MCLIPSWWS,
      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: <MCLIPSWWS> TYPE MCLIPSWWS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCLIPSWWS
*  INTO TABLE @DATA(IT_MCLIPSWWS2).
*--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_MCLIPSWWS INDEX 1 INTO DATA(WA_MCLIPSWWS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCLIPSWWS>-EKORG = 1.
<MCLIPSWWS>-EKSGB = 1.
<MCLIPSWWS>-EKGRP = 1.
<MCLIPSWWS>-DISPO = 1.
<MCLIPSWWS>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCLIPSWWS-LTSNR, sy-vline,
  WA_MCLIPSWWS-BTRKZ, sy-vline,
  WA_MCLIPSWWS-WGRU2, sy-vline,
  WA_MCLIPSWWS-WGRU1, sy-vline,
  WA_MCLIPSWWS-SATNR, sy-vline,
  WA_MCLIPSWWS-MERK1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCLIPSWWS 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_MCLIPSWWS 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_MCLIPSWWS INTO WA_MCLIPSWWS.


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

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-SATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field SAISJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-SAISJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-SAISJ.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ATINN, internal->external for field ATINM1
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-ATINM1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-ATINM1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINM2
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-ATINM2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-ATINM2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINM3
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-ATINM3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-ATINM3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field STRNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-STRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-STRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field SEAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-SEAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-SEAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WKUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCLIPSWWS-WKUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCLIPSWWS-WKUNNR.
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_MCLIPSWWS_STR, 
EKORG TYPE STRING,
EKSGB TYPE STRING,
EKGRP TYPE STRING,
DISPO TYPE STRING,
LIFNR TYPE STRING,
LTSNR TYPE STRING,
BTRKZ TYPE STRING,
WGRU2 TYPE STRING,
WGRU1 TYPE STRING,
SATNR TYPE STRING,
MERK1 TYPE STRING,
MERK2 TYPE STRING,
MERK3 TYPE STRING,
AKTYP TYPE STRING,
AKTHE TYPE STRING,
PLGTP TYPE STRING,
SAISO TYPE STRING,
SAISJ TYPE STRING,
BWVOR TYPE STRING,
BWSCL TYPE STRING,
SERVG TYPE STRING,
PRDHA TYPE STRING,
LAND1 TYPE STRING,
WRKGR2 TYPE STRING,
WRKGR1 TYPE STRING,
ASCAR TYPE STRING,
SVKORG TYPE STRING,
SVTWEG TYPE STRING,
SBZIRK TYPE STRING,
SMATKL TYPE STRING,
SABTNR TYPE STRING,
IDNLF TYPE STRING,
KOLIF TYPE STRING,
WMAKG TYPE STRING,
ATINM1 TYPE STRING,
ATINM2 TYPE STRING,
ATINM3 TYPE STRING,
STRNR TYPE STRING,
ATTYP TYPE STRING,
SEAN11 TYPE STRING,
LIFMNG TYPE STRING,
LIFGEW TYPE STRING,
LIFVOL TYPE STRING,
WKUNNR TYPE STRING,
RPLREL TYPE STRING,
BIWMVE TYPE STRING,
BIWMNG TYPE STRING,
BWVORG TYPE STRING,
HSUPKZ TYPE STRING,
HERZET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCLIPSWWS_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_MCLIPSWWS_STR-EKORG sy-vline 
WA_MCLIPSWWS_STR-EKSGB sy-vline 
WA_MCLIPSWWS_STR-EKGRP sy-vline 
WA_MCLIPSWWS_STR-DISPO sy-vline 
WA_MCLIPSWWS_STR-LIFNR sy-vline 
WA_MCLIPSWWS_STR-LTSNR sy-vline 
WA_MCLIPSWWS_STR-BTRKZ sy-vline 
WA_MCLIPSWWS_STR-WGRU2 sy-vline 
WA_MCLIPSWWS_STR-WGRU1 sy-vline 
WA_MCLIPSWWS_STR-SATNR sy-vline 
WA_MCLIPSWWS_STR-MERK1 sy-vline 
WA_MCLIPSWWS_STR-MERK2 sy-vline 
WA_MCLIPSWWS_STR-MERK3 sy-vline 
WA_MCLIPSWWS_STR-AKTYP sy-vline 
WA_MCLIPSWWS_STR-AKTHE sy-vline 
WA_MCLIPSWWS_STR-PLGTP sy-vline 
WA_MCLIPSWWS_STR-SAISO sy-vline 
WA_MCLIPSWWS_STR-SAISJ sy-vline 
WA_MCLIPSWWS_STR-BWVOR sy-vline 
WA_MCLIPSWWS_STR-BWSCL sy-vline 
WA_MCLIPSWWS_STR-SERVG sy-vline 
WA_MCLIPSWWS_STR-PRDHA sy-vline 
WA_MCLIPSWWS_STR-LAND1 sy-vline 
WA_MCLIPSWWS_STR-WRKGR2 sy-vline 
WA_MCLIPSWWS_STR-WRKGR1 sy-vline 
WA_MCLIPSWWS_STR-ASCAR sy-vline 
WA_MCLIPSWWS_STR-SVKORG sy-vline 
WA_MCLIPSWWS_STR-SVTWEG sy-vline 
WA_MCLIPSWWS_STR-SBZIRK sy-vline 
WA_MCLIPSWWS_STR-SMATKL sy-vline 
WA_MCLIPSWWS_STR-SABTNR sy-vline 
WA_MCLIPSWWS_STR-IDNLF sy-vline 
WA_MCLIPSWWS_STR-KOLIF sy-vline 
WA_MCLIPSWWS_STR-WMAKG sy-vline 
WA_MCLIPSWWS_STR-ATINM1 sy-vline 
WA_MCLIPSWWS_STR-ATINM2 sy-vline 
WA_MCLIPSWWS_STR-ATINM3 sy-vline 
WA_MCLIPSWWS_STR-STRNR sy-vline 
WA_MCLIPSWWS_STR-ATTYP sy-vline 
WA_MCLIPSWWS_STR-SEAN11 sy-vline 
WA_MCLIPSWWS_STR-LIFMNG sy-vline 
WA_MCLIPSWWS_STR-LIFGEW sy-vline 
WA_MCLIPSWWS_STR-LIFVOL sy-vline 
WA_MCLIPSWWS_STR-WKUNNR sy-vline 
WA_MCLIPSWWS_STR-RPLREL sy-vline 
WA_MCLIPSWWS_STR-BIWMVE sy-vline 
WA_MCLIPSWWS_STR-BIWMNG sy-vline 
WA_MCLIPSWWS_STR-BWVORG sy-vline 
WA_MCLIPSWWS_STR-HSUPKZ sy-vline 
WA_MCLIPSWWS_STR-HERZET sy-vline      INTO ld_text SEPARATED BY SPACE.

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