ABAP Select data from SAP table /MERP/PM_NOTIF_HIST_ENTITY_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MERP/PM_NOTIF_HIST_ENTITY_STR 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 /MERP/PM_NOTIF_HIST_ENTITY_STR. 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 /MERP/PM_NOTIF_HIST_ENTITY_STR 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_/MERP/PM_NOTIF_HIST_ENTITY_STR TYPE STANDARD TABLE OF /MERP/PM_NOTIF_HIST_ENTITY_STR,
      WA_/MERP/PM_NOTIF_HIST_ENTITY_STR TYPE /MERP/PM_NOTIF_HIST_ENTITY_STR,
      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: </MERP/PM_NOTIF_HIST_ENTITY_STR> TYPE /MERP/PM_NOTIF_HIST_ENTITY_STR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MERP/PM_NOTIF_HIST_ENTITY_STR
  INTO TABLE IT_/MERP/PM_NOTIF_HIST_ENTITY_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MERP/PM_NOTIF_HIST_ENTITY_STR
*  INTO TABLE @DATA(IT_/MERP/PM_NOTIF_HIST_ENTITY_STR2).
*--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_/MERP/PM_NOTIF_HIST_ENTITY_STR INDEX 1 INTO DATA(WA_/MERP/PM_NOTIF_HIST_ENTITY_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MERP/PM_NOTIF_HIST_ENTITY_STR ASSIGNING </MERP/PM_NOTIF_HIST_ENTITY_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MERP/PM_NOTIF_HIST_ENTITY_STR>-REFQMNUM = 1.
</MERP/PM_NOTIF_HIST_ENTITY_STR>-QMNUM = 1.
</MERP/PM_NOTIF_HIST_ENTITY_STR>-QMART = 1.
</MERP/PM_NOTIF_HIST_ENTITY_STR>-PRIOK = 1.
</MERP/PM_NOTIF_HIST_ENTITY_STR>-QMTXT = 1.

ENDLOOP.

LOOP AT IT_/MERP/PM_NOTIF_HIST_ENTITY_STR INTO WA_/MERP/PM_NOTIF_HIST_ENTITY_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-QMDAB, sy-vline,
  WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-QMZAB, sy-vline,
  WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-MSAUS, sy-vline,
  WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-AUSVN, sy-vline,
  WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-AUZTV, sy-vline,
  WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-AUSBS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MERP/PM_NOTIF_HIST_ENTITY_STR 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_/MERP/PM_NOTIF_HIST_ENTITY_STR 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_/MERP/PM_NOTIF_HIST_ENTITY_STR INTO WA_/MERP/PM_NOTIF_HIST_ENTITY_STR.


*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 REFQMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-REFQMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-REFQMNUM.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MERP/PM_NOTIF_HIST_ENTITY_STR-AUFNR.
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_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR, 
REFQMNUM TYPE STRING,
QMNUM TYPE STRING,
QMART TYPE STRING,
PRIOK TYPE STRING,
QMTXT TYPE STRING,
QMDAB TYPE STRING,
QMZAB TYPE STRING,
MSAUS TYPE STRING,
AUSVN TYPE STRING,
AUZTV TYPE STRING,
AUSBS TYPE STRING,
AUZTB TYPE STRING,
EQUNR TYPE STRING,
TPLNR TYPE STRING,
TPLNR_ELONG TYPE STRING,
STRMN TYPE STRING,
STRUR TYPE STRING,
LTRMN TYPE STRING,
LTRUR TYPE STRING,
PARNR TYPE STRING,
SNAME TYPE STRING,
ENAME TYPE STRING,
OBJNR TYPE STRING,
REFERENCE_TYPE TYPE STRING,
ARTPR TYPE STRING,
TECHOBJ TYPE STRING,
AUFNR TYPE STRING,
ARBPL TYPE STRING,
INGRP TYPE STRING,
IWERK TYPE STRING,
ARBPL_E TYPE STRING,
CROBJTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_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_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-REFQMNUM sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-QMNUM sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-QMART sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-PRIOK sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-QMTXT sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-QMDAB sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-QMZAB sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-MSAUS sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-AUSVN sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-AUZTV sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-AUSBS sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-AUZTB sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-EQUNR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-TPLNR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-TPLNR_ELONG sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-STRMN sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-STRUR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-LTRMN sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-LTRUR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-PARNR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-SNAME sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-ENAME sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-OBJNR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-REFERENCE_TYPE sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-ARTPR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-TECHOBJ sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-AUFNR sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-ARBPL sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-INGRP sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-IWERK sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-ARBPL_E sy-vline 
WA_/MERP/PM_NOTIF_HIST_ENTITY_STR_STR-CROBJTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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