ABAP Select data from SAP table MMRP_MD_POSVARS 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 MMRP_MD_POSVARS 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 MMRP_MD_POSVARS. 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 MMRP_MD_POSVARS 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_MMRP_MD_POSVARS TYPE STANDARD TABLE OF MMRP_MD_POSVARS,
      WA_MMRP_MD_POSVARS TYPE MMRP_MD_POSVARS,
      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: <MMRP_MD_POSVARS> TYPE MMRP_MD_POSVARS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMRP_MD_POSVARS
*  INTO TABLE @DATA(IT_MMRP_MD_POSVARS2).
*--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_MMRP_MD_POSVARS INDEX 1 INTO DATA(WA_MMRP_MD_POSVARS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMRP_MD_POSVARS>-PNODE = 1.
<MMRP_MD_POSVARS>-CLASS = 1.
<MMRP_MD_POSVARS>-KLART = 1.
<MMRP_MD_POSVARS>-POSVAR = 1.
<MMRP_MD_POSVARS>-AENNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMRP_MD_POSVARS-DATEFROM, sy-vline,
  WA_MMRP_MD_POSVARS-DATETO, sy-vline,
  WA_MMRP_MD_POSVARS-VSP_VALUE, sy-vline,
  WA_MMRP_MD_POSVARS-KIND_OF_ENTRY_KONV, sy-vline,
  WA_MMRP_MD_POSVARS-COLOUR_NODE, sy-vline,
  WA_MMRP_MD_POSVARS-IS_PHANTOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMRP_MD_POSVARS 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_MMRP_MD_POSVARS 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_MMRP_MD_POSVARS INTO WA_MMRP_MD_POSVARS.


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

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

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

*Conversion exit CUNIT, internal->external for field KMPME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MMRP_MD_POSVARS-KMPME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMRP_MD_POSVARS-KMPME.
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_MMRP_MD_POSVARS_STR, 
PNODE TYPE STRING,
CLASS TYPE STRING,
KLART TYPE STRING,
POSVAR TYPE STRING,
AENNR TYPE STRING,
DATEFROM TYPE STRING,
DATETO TYPE STRING,
VSP_VALUE TYPE STRING,
KIND_OF_ENTRY_KONV TYPE STRING,
COLOUR_NODE TYPE STRING,
IS_PHANTOM TYPE STRING,
BOM_LEVEL TYPE STRING,
PARENT_POS_NO TYPE STRING,
MATNR TYPE STRING,
LOCNO TYPE STRING,
LINE_NO TYPE STRING,
POS_NO TYPE STRING,
SUBLOC TYPE STRING,
PRVBE TYPE STRING,
KMPMG TYPE STRING,
KMPME TYPE STRING,
TIMESEQ TYPE STRING,
SCHEDMODE TYPE STRING,
TBID TYPE STRING,
HL_FLAG TYPE STRING,
FLG_MAND_PART TYPE STRING,
FLG_STD_PRT TYPE STRING,
EVALSEQUENCE TYPE STRING,
EVAL_SEQ_ACTIVE TYPE STRING,
RESNAME TYPE STRING,
LINE_SEGMENT TYPE STRING,
TIMEOFFSET TYPE STRING,
REPPOINT TYPE STRING,
REPPOINTTYPE TYPE STRING,
EXPLDATEFINDER TYPE STRING,
ALTPATH TYPE STRING,
OFFSET_TAKT TYPE STRING,
SYNC_RP_OFFSET_TAKT TYPE STRING,
SYNCRP TYPE STRING,
SERRP TYPE STRING,
REQ_RELEVANT TYPE STRING,
CUSDATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMRP_MD_POSVARS_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_MMRP_MD_POSVARS_STR-PNODE sy-vline 
WA_MMRP_MD_POSVARS_STR-CLASS sy-vline 
WA_MMRP_MD_POSVARS_STR-KLART sy-vline 
WA_MMRP_MD_POSVARS_STR-POSVAR sy-vline 
WA_MMRP_MD_POSVARS_STR-AENNR sy-vline 
WA_MMRP_MD_POSVARS_STR-DATEFROM sy-vline 
WA_MMRP_MD_POSVARS_STR-DATETO sy-vline 
WA_MMRP_MD_POSVARS_STR-VSP_VALUE sy-vline 
WA_MMRP_MD_POSVARS_STR-KIND_OF_ENTRY_KONV sy-vline 
WA_MMRP_MD_POSVARS_STR-COLOUR_NODE sy-vline 
WA_MMRP_MD_POSVARS_STR-IS_PHANTOM sy-vline 
WA_MMRP_MD_POSVARS_STR-BOM_LEVEL sy-vline 
WA_MMRP_MD_POSVARS_STR-PARENT_POS_NO sy-vline 
WA_MMRP_MD_POSVARS_STR-MATNR sy-vline 
WA_MMRP_MD_POSVARS_STR-LOCNO sy-vline 
WA_MMRP_MD_POSVARS_STR-LINE_NO sy-vline 
WA_MMRP_MD_POSVARS_STR-POS_NO sy-vline 
WA_MMRP_MD_POSVARS_STR-SUBLOC sy-vline 
WA_MMRP_MD_POSVARS_STR-PRVBE sy-vline 
WA_MMRP_MD_POSVARS_STR-KMPMG sy-vline 
WA_MMRP_MD_POSVARS_STR-KMPME sy-vline 
WA_MMRP_MD_POSVARS_STR-TIMESEQ sy-vline 
WA_MMRP_MD_POSVARS_STR-SCHEDMODE sy-vline 
WA_MMRP_MD_POSVARS_STR-TBID sy-vline 
WA_MMRP_MD_POSVARS_STR-HL_FLAG sy-vline 
WA_MMRP_MD_POSVARS_STR-FLG_MAND_PART sy-vline 
WA_MMRP_MD_POSVARS_STR-FLG_STD_PRT sy-vline 
WA_MMRP_MD_POSVARS_STR-EVALSEQUENCE sy-vline 
WA_MMRP_MD_POSVARS_STR-EVAL_SEQ_ACTIVE sy-vline 
WA_MMRP_MD_POSVARS_STR-RESNAME sy-vline 
WA_MMRP_MD_POSVARS_STR-LINE_SEGMENT sy-vline 
WA_MMRP_MD_POSVARS_STR-TIMEOFFSET sy-vline 
WA_MMRP_MD_POSVARS_STR-REPPOINT sy-vline 
WA_MMRP_MD_POSVARS_STR-REPPOINTTYPE sy-vline 
WA_MMRP_MD_POSVARS_STR-EXPLDATEFINDER sy-vline 
WA_MMRP_MD_POSVARS_STR-ALTPATH sy-vline 
WA_MMRP_MD_POSVARS_STR-OFFSET_TAKT sy-vline 
WA_MMRP_MD_POSVARS_STR-SYNC_RP_OFFSET_TAKT sy-vline 
WA_MMRP_MD_POSVARS_STR-SYNCRP sy-vline 
WA_MMRP_MD_POSVARS_STR-SERRP sy-vline 
WA_MMRP_MD_POSVARS_STR-REQ_RELEVANT sy-vline 
WA_MMRP_MD_POSVARS_STR-CUSDATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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