ABAP Select data from SAP table EHSWAS_MNSELECT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHSWAS_MNSELECT
*  INTO TABLE @DATA(IT_EHSWAS_MNSELECT2).
*--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_EHSWAS_MNSELECT INDEX 1 INTO DATA(WA_EHSWAS_MNSELECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHSWAS_MNSELECT>-MNNOSEL = 1.
<EHSWAS_MNSELECT>-MNINO = 1.
<EHSWAS_MNSELECT>-MNCAT = 1.
<EHSWAS_MNSELECT>-MNSTATUS = 1.
<EHSWAS_MNSELECT>-WABPROLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHSWAS_MNSELECT-PARTNER, sy-vline,
  WA_EHSWAS_MNSELECT-SELDATEDEL, sy-vline,
  WA_EHSWAS_MNSELECT-SELDATEADO, sy-vline,
  WA_EHSWAS_MNSELECT-SELDATEREC, sy-vline,
  WA_EHSWAS_MNSELECT-SELDATEPRN, sy-vline,
  WA_EHSWAS_MNSELECT-SELDATEXP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHSWAS_MNSELECT 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_EHSWAS_MNSELECT 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_EHSWAS_MNSELECT INTO WA_EHSWAS_MNSELECT.


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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field MNMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EHSWAS_MNSELECT-MNMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSWAS_MNSELECT-MNMATNR.
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_EHSWAS_MNSELECT_STR, 
MNNOSEL TYPE STRING,
MNINO TYPE STRING,
MNCAT TYPE STRING,
MNSTATUS TYPE STRING,
WABPROLE TYPE STRING,
PARTNER TYPE STRING,
SELDATEDEL TYPE STRING,
SELDATEADO TYPE STRING,
SELDATEREC TYPE STRING,
SELDATEPRN TYPE STRING,
SELDATEXP TYPE STRING,
SELDATELOW TYPE STRING,
SELDATEHIGH TYPE STRING,
INTAPPNO TYPE STRING,
APPNO TYPE STRING,
APCAT TYPE STRING,
APPSEL TYPE STRING,
RECNMASTER TYPE STRING,
MNKEYPOS TYPE STRING,
RECNWAKEY TYPE STRING,
MNWAKEY TYPE STRING,
MNWAKEYQREL TYPE STRING,
MNARCH TYPE STRING,
MNCAN TYPE STRING,
MNMATNR TYPE STRING,
MNSIGNBPMN TYPE STRING,
MNVHSIGN TYPE STRING,
MNDRIVER TYPE STRING,
MNORDNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHSWAS_MNSELECT_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_EHSWAS_MNSELECT_STR-MNNOSEL sy-vline 
WA_EHSWAS_MNSELECT_STR-MNINO sy-vline 
WA_EHSWAS_MNSELECT_STR-MNCAT sy-vline 
WA_EHSWAS_MNSELECT_STR-MNSTATUS sy-vline 
WA_EHSWAS_MNSELECT_STR-WABPROLE sy-vline 
WA_EHSWAS_MNSELECT_STR-PARTNER sy-vline 
WA_EHSWAS_MNSELECT_STR-SELDATEDEL sy-vline 
WA_EHSWAS_MNSELECT_STR-SELDATEADO sy-vline 
WA_EHSWAS_MNSELECT_STR-SELDATEREC sy-vline 
WA_EHSWAS_MNSELECT_STR-SELDATEPRN sy-vline 
WA_EHSWAS_MNSELECT_STR-SELDATEXP sy-vline 
WA_EHSWAS_MNSELECT_STR-SELDATELOW sy-vline 
WA_EHSWAS_MNSELECT_STR-SELDATEHIGH sy-vline 
WA_EHSWAS_MNSELECT_STR-INTAPPNO sy-vline 
WA_EHSWAS_MNSELECT_STR-APPNO sy-vline 
WA_EHSWAS_MNSELECT_STR-APCAT sy-vline 
WA_EHSWAS_MNSELECT_STR-APPSEL sy-vline 
WA_EHSWAS_MNSELECT_STR-RECNMASTER sy-vline 
WA_EHSWAS_MNSELECT_STR-MNKEYPOS sy-vline 
WA_EHSWAS_MNSELECT_STR-RECNWAKEY sy-vline 
WA_EHSWAS_MNSELECT_STR-MNWAKEY sy-vline 
WA_EHSWAS_MNSELECT_STR-MNWAKEYQREL sy-vline 
WA_EHSWAS_MNSELECT_STR-MNARCH sy-vline 
WA_EHSWAS_MNSELECT_STR-MNCAN sy-vline 
WA_EHSWAS_MNSELECT_STR-MNMATNR sy-vline 
WA_EHSWAS_MNSELECT_STR-MNSIGNBPMN sy-vline 
WA_EHSWAS_MNSELECT_STR-MNVHSIGN sy-vline 
WA_EHSWAS_MNSELECT_STR-MNDRIVER sy-vline 
WA_EHSWAS_MNSELECT_STR-MNORDNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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