ABAP Select data from SAP table PMGES_MERGE_SPLIT_PERNRS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMGES_MERGE_SPLIT_PERNRS
*  INTO TABLE @DATA(IT_PMGES_MERGE_SPLIT_PERNRS2).
*--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_PMGES_MERGE_SPLIT_PERNRS INDEX 1 INTO DATA(WA_PMGES_MERGE_SPLIT_PERNRS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMGES_MERGE_SPLIT_PERNRS>-PERNR1 = 1.
<PMGES_MERGE_SPLIT_PERNRS>-ANRED1 = 1.
<PMGES_MERGE_SPLIT_PERNRS>-NAME1 = 1.
<PMGES_MERGE_SPLIT_PERNRS>-FNAME1 = 1.
<PMGES_MERGE_SPLIT_PERNRS>-GBDAT1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMGES_MERGE_SPLIT_PERNRS-PERSONID_EX1, sy-vline,
  WA_PMGES_MERGE_SPLIT_PERNRS-CNTXT1, sy-vline,
  WA_PMGES_MERGE_SPLIT_PERNRS-ITXTT1, sy-vline,
  WA_PMGES_MERGE_SPLIT_PERNRS-PERNR2, sy-vline,
  WA_PMGES_MERGE_SPLIT_PERNRS-ANRED2, sy-vline,
  WA_PMGES_MERGE_SPLIT_PERNRS-NAME2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMGES_MERGE_SPLIT_PERNRS 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_PMGES_MERGE_SPLIT_PERNRS 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_PMGES_MERGE_SPLIT_PERNRS INTO WA_PMGES_MERGE_SPLIT_PERNRS.


*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 PDATE, internal->external for field GBDAT1
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PMGES_MERGE_SPLIT_PERNRS-GBDAT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMGES_MERGE_SPLIT_PERNRS-GBDAT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PIDEX, internal->external for field PERSONID_EX1
CALL FUNCTION 'CONVERSION_EXIT_PIDEX_OUTPUT'
  EXPORTING
    input =                      WA_PMGES_MERGE_SPLIT_PERNRS-PERSONID_EX1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMGES_MERGE_SPLIT_PERNRS-PERSONID_EX1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field GBDAT2
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PMGES_MERGE_SPLIT_PERNRS-GBDAT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMGES_MERGE_SPLIT_PERNRS-GBDAT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PIDEX, internal->external for field PERSONID_EX2
CALL FUNCTION 'CONVERSION_EXIT_PIDEX_OUTPUT'
  EXPORTING
    input =                      WA_PMGES_MERGE_SPLIT_PERNRS-PERSONID_EX2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMGES_MERGE_SPLIT_PERNRS-PERSONID_EX2.
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_PMGES_MERGE_SPLIT_PERNRS_STR, 
PERNR1 TYPE STRING,
ANRED1 TYPE STRING,
NAME1 TYPE STRING,
FNAME1 TYPE STRING,
GBDAT1 TYPE STRING,
PERSONID_EX1 TYPE STRING,
CNTXT1 TYPE STRING,
ITXTT1 TYPE STRING,
PERNR2 TYPE STRING,
ANRED2 TYPE STRING,
NAME2 TYPE STRING,
FNAME2 TYPE STRING,
GBDAT2 TYPE STRING,
PERSONID_EX2 TYPE STRING,
CNTXT2 TYPE STRING,
ITXTT2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMGES_MERGE_SPLIT_PERNRS_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_PMGES_MERGE_SPLIT_PERNRS_STR-PERNR1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-ANRED1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-NAME1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-FNAME1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-GBDAT1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-PERSONID_EX1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-CNTXT1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-ITXTT1 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-PERNR2 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-ANRED2 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-NAME2 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-FNAME2 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-GBDAT2 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-PERSONID_EX2 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-CNTXT2 sy-vline 
WA_PMGES_MERGE_SPLIT_PERNRS_STR-ITXTT2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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