ABAP Select data from SAP table MEIRCNDVALIDITYX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MEIRCNDVALIDITYX
*  INTO TABLE @DATA(IT_MEIRCNDVALIDITYX2).
*--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_MEIRCNDVALIDITYX INDEX 1 INTO DATA(WA_MEIRCNDVALIDITYX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MEIRCNDVALIDITYX>-CONDITIONRECORDX = 1.
<MEIRCNDVALIDITYX>-CONDITIONVALIDITYENDDATEX = 1.
<MEIRCNDVALIDITYX>-CONDITIONVALIDITYENDDATEOLD = 1.
<MEIRCNDVALIDITYX>-CONDITIONRECORD = 1.
<MEIRCNDVALIDITYX>-CONDITIONVALIDITYENDDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MEIRCNDVALIDITYX-CONDITIONVALIDITYSTARTDATE, sy-vline,
  WA_MEIRCNDVALIDITYX-CONDITIONAPPLICATION, sy-vline,
  WA_MEIRCNDVALIDITYX-CONDITIONTYPE, sy-vline,
  WA_MEIRCNDVALIDITYX-CONDITION, sy-vline,
  WA_MEIRCNDVALIDITYX-PURGDOCORDERQUANTITYUNIT, sy-vline,
  WA_MEIRCNDVALIDITYX-PURCHASINGORGANIZATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MEIRCNDVALIDITYX 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_MEIRCNDVALIDITYX 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_MEIRCNDVALIDITYX INTO WA_MEIRCNDVALIDITYX.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MEIRCNDVALIDITYX_STR, 
CONDITIONRECORDX TYPE STRING,
CONDITIONVALIDITYENDDATEX TYPE STRING,
CONDITIONVALIDITYENDDATEOLD TYPE STRING,
CONDITIONRECORD TYPE STRING,
CONDITIONVALIDITYENDDATE TYPE STRING,
CONDITIONVALIDITYSTARTDATE TYPE STRING,
CONDITIONAPPLICATION TYPE STRING,
CONDITIONTYPE TYPE STRING,
CONDITION TYPE STRING,
PURGDOCORDERQUANTITYUNIT TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGINFORECORDCATEGORY TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
SUPPLIER TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MEIRCNDVALIDITYX_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_MEIRCNDVALIDITYX_STR-CONDITIONRECORDX sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITIONVALIDITYENDDATEX sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITIONVALIDITYENDDATEOLD sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITIONRECORD sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITIONVALIDITYENDDATE sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITIONVALIDITYSTARTDATE sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITIONAPPLICATION sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITIONTYPE sy-vline 
WA_MEIRCNDVALIDITYX_STR-CONDITION sy-vline 
WA_MEIRCNDVALIDITYX_STR-PURGDOCORDERQUANTITYUNIT sy-vline 
WA_MEIRCNDVALIDITYX_STR-PURCHASINGORGANIZATION sy-vline 
WA_MEIRCNDVALIDITYX_STR-PURCHASINGINFORECORDCATEGORY sy-vline 
WA_MEIRCNDVALIDITYX_STR-PURCHASINGINFORECORD sy-vline 
WA_MEIRCNDVALIDITYX_STR-SUPPLIER sy-vline 
WA_MEIRCNDVALIDITYX_STR-MATERIALGROUP sy-vline 
WA_MEIRCNDVALIDITYX_STR-MATERIAL sy-vline 
WA_MEIRCNDVALIDITYX_STR-PLANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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