ABAP Select data from SAP table PMEI4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PMEI4 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 PMEI4. 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 PMEI4 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_PMEI4 TYPE STANDARD TABLE OF PMEI4,
      WA_PMEI4 TYPE PMEI4,
      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: <PMEI4> TYPE PMEI4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PMEI4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PMEI4
  INTO TABLE IT_PMEI4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMEI4
*  INTO TABLE @DATA(IT_PMEI42).
*--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_PMEI4 INDEX 1 INTO DATA(WA_PMEI42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PMEI4 ASSIGNING <PMEI4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMEI4>-WERKS = 1.
<PMEI4>-BTRTL = 1.
<PMEI4>-PERSG = 1.
<PMEI4>-PERSK = 1.
<PMEI4>-ABKRS = 1.

ENDLOOP.

LOOP AT IT_PMEI4 INTO WA_PMEI4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMEI4-TRFAR, sy-vline,
  WA_PMEI4-TRFGB, sy-vline,
  WA_PMEI4-TRFGR, sy-vline,
  WA_PMEI4-TRFST, sy-vline,
  WA_PMEI4-CTTYP, sy-vline,
  WA_PMEI4-AWART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMEI4 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_PMEI4 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_PMEI4 INTO WA_PMEI4.


*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_PMEI4_STR, 
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
ABKRS TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
CTTYP TYPE STRING,
AWART TYPE STRING,
TPASS TYPE STRING,
DATO TYPE STRING,
MASSN TYPE STRING,
MODMN TYPE STRING,
MASSG TYPE STRING,
BSGRD TYPE STRING,
SCHKZ TYPE STRING,
ZTERF TYPE STRING,
EMPCT TYPE STRING,
MOSTD TYPE STRING,
WOSTD TYPE STRING,
ARBST TYPE STRING,
WKWDY TYPE STRING,
JRSTD TYPE STRING,
TEILK TYPE STRING,
MINTA TYPE STRING,
MAXTA TYPE STRING,
MINWO TYPE STRING,
MAXWO TYPE STRING,
MINMO TYPE STRING,
MAXMO TYPE STRING,
MINJA TYPE STRING,
MAXJA TYPE STRING,
DYSCH TYPE STRING,
KZTIM TYPE STRING,
WWEEK TYPE STRING,
AWTYP TYPE STRING,
TPA1 TYPE STRING,
CDC1 TYPE STRING,
TPA2 TYPE STRING,
CDC2 TYPE STRING,
TPA3 TYPE STRING,
CDC3 TYPE STRING,
TPA4 TYPE STRING,
CDC4 TYPE STRING,
TPA5 TYPE STRING,
CDC5 TYPE STRING,
TPA6 TYPE STRING,
CDC6 TYPE STRING,
TPA7 TYPE STRING,
CDC7 TYPE STRING,
TPA8 TYPE STRING,
CDC8 TYPE STRING,
TPA9 TYPE STRING,
CDC9 TYPE STRING,
TPA10 TYPE STRING,
CDC10 TYPE STRING,
TPA11 TYPE STRING,
CDC11 TYPE STRING,
TPA12 TYPE STRING,
CDC12 TYPE STRING,
TPA13 TYPE STRING,
CDC13 TYPE STRING,
TPA14 TYPE STRING,
CDC14 TYPE STRING,
TPA15 TYPE STRING,
CDC15 TYPE STRING,
TPA16 TYPE STRING,
CDC16 TYPE STRING,
TPA17 TYPE STRING,
CDC17 TYPE STRING,
TPA18 TYPE STRING,
CDC18 TYPE STRING,
TPA19 TYPE STRING,
CDC19 TYPE STRING,
TPA20 TYPE STRING,
CDC20 TYPE STRING,
TPA21 TYPE STRING,
CDC21 TYPE STRING,
TPA22 TYPE STRING,
CDC22 TYPE STRING,
TPA23 TYPE STRING,
CDC23 TYPE STRING,
TPA24 TYPE STRING,
CDC24 TYPE STRING,
TPA25 TYPE STRING,
CDC25 TYPE STRING,
TPA26 TYPE STRING,
CDC26 TYPE STRING,
TPA27 TYPE STRING,
CDC27 TYPE STRING,
TPA28 TYPE STRING,
CDC28 TYPE STRING,
TPA29 TYPE STRING,
CDC29 TYPE STRING,
TPA30 TYPE STRING,
CDC30 TYPE STRING,
DATO1 TYPE STRING,
CDDA1 TYPE STRING,
DATO2 TYPE STRING,
CDDA2 TYPE STRING,
DATO3 TYPE STRING,
CDDA3 TYPE STRING,
DATO4 TYPE STRING,
CDDA4 TYPE STRING,
DATO5 TYPE STRING,
CDDA5 TYPE STRING,
DATO6 TYPE STRING,
CDDA6 TYPE STRING,
DATO7 TYPE STRING,
CDDA7 TYPE STRING,
DATO8 TYPE STRING,
CDDA8 TYPE STRING,
DATO9 TYPE STRING,
CDDA9 TYPE STRING,
DAT10 TYPE STRING,
CDD10 TYPE STRING,
DAT11 TYPE STRING,
CDD11 TYPE STRING,
DAT12 TYPE STRING,
CDD12 TYPE STRING,
DAT13 TYPE STRING,
CDD13 TYPE STRING,
DAT14 TYPE STRING,
CDD14 TYPE STRING,
DAT15 TYPE STRING,
CDD15 TYPE STRING,
DAT16 TYPE STRING,
CDD16 TYPE STRING,
DAT17 TYPE STRING,
CDD17 TYPE STRING,
DAT18 TYPE STRING,
CDD18 TYPE STRING,
DAT19 TYPE STRING,
CDD19 TYPE STRING,
DAT20 TYPE STRING,
CDD20 TYPE STRING,
DAT21 TYPE STRING,
CDD21 TYPE STRING,
DAT22 TYPE STRING,
CDD22 TYPE STRING,
DAT23 TYPE STRING,
CDD23 TYPE STRING,
DAT24 TYPE STRING,
CDD24 TYPE STRING,
DAT25 TYPE STRING,
CDD25 TYPE STRING,
DAT26 TYPE STRING,
CDD26 TYPE STRING,
DAT27 TYPE STRING,
CDD27 TYPE STRING,
DAT28 TYPE STRING,
CDD28 TYPE STRING,
DAT29 TYPE STRING,
CDD29 TYPE STRING,
DAT30 TYPE STRING,
CDD30 TYPE STRING,
ANSVH TYPE STRING,
AR770 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMEI4_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_PMEI4_STR-WERKS sy-vline 
WA_PMEI4_STR-BTRTL sy-vline 
WA_PMEI4_STR-PERSG sy-vline 
WA_PMEI4_STR-PERSK sy-vline 
WA_PMEI4_STR-ABKRS sy-vline 
WA_PMEI4_STR-TRFAR sy-vline 
WA_PMEI4_STR-TRFGB sy-vline 
WA_PMEI4_STR-TRFGR sy-vline 
WA_PMEI4_STR-TRFST sy-vline 
WA_PMEI4_STR-CTTYP sy-vline 
WA_PMEI4_STR-AWART sy-vline 
WA_PMEI4_STR-TPASS sy-vline 
WA_PMEI4_STR-DATO sy-vline 
WA_PMEI4_STR-MASSN sy-vline 
WA_PMEI4_STR-MODMN sy-vline 
WA_PMEI4_STR-MASSG sy-vline 
WA_PMEI4_STR-BSGRD sy-vline 
WA_PMEI4_STR-SCHKZ sy-vline 
WA_PMEI4_STR-ZTERF sy-vline 
WA_PMEI4_STR-EMPCT sy-vline 
WA_PMEI4_STR-MOSTD sy-vline 
WA_PMEI4_STR-WOSTD sy-vline 
WA_PMEI4_STR-ARBST sy-vline 
WA_PMEI4_STR-WKWDY sy-vline 
WA_PMEI4_STR-JRSTD sy-vline 
WA_PMEI4_STR-TEILK sy-vline 
WA_PMEI4_STR-MINTA sy-vline 
WA_PMEI4_STR-MAXTA sy-vline 
WA_PMEI4_STR-MINWO sy-vline 
WA_PMEI4_STR-MAXWO sy-vline 
WA_PMEI4_STR-MINMO sy-vline 
WA_PMEI4_STR-MAXMO sy-vline 
WA_PMEI4_STR-MINJA sy-vline 
WA_PMEI4_STR-MAXJA sy-vline 
WA_PMEI4_STR-DYSCH sy-vline 
WA_PMEI4_STR-KZTIM sy-vline 
WA_PMEI4_STR-WWEEK sy-vline 
WA_PMEI4_STR-AWTYP sy-vline 
WA_PMEI4_STR-TPA1 sy-vline 
WA_PMEI4_STR-CDC1 sy-vline 
WA_PMEI4_STR-TPA2 sy-vline 
WA_PMEI4_STR-CDC2 sy-vline 
WA_PMEI4_STR-TPA3 sy-vline 
WA_PMEI4_STR-CDC3 sy-vline 
WA_PMEI4_STR-TPA4 sy-vline 
WA_PMEI4_STR-CDC4 sy-vline 
WA_PMEI4_STR-TPA5 sy-vline 
WA_PMEI4_STR-CDC5 sy-vline 
WA_PMEI4_STR-TPA6 sy-vline 
WA_PMEI4_STR-CDC6 sy-vline 
WA_PMEI4_STR-TPA7 sy-vline 
WA_PMEI4_STR-CDC7 sy-vline 
WA_PMEI4_STR-TPA8 sy-vline 
WA_PMEI4_STR-CDC8 sy-vline 
WA_PMEI4_STR-TPA9 sy-vline 
WA_PMEI4_STR-CDC9 sy-vline 
WA_PMEI4_STR-TPA10 sy-vline 
WA_PMEI4_STR-CDC10 sy-vline 
WA_PMEI4_STR-TPA11 sy-vline 
WA_PMEI4_STR-CDC11 sy-vline 
WA_PMEI4_STR-TPA12 sy-vline 
WA_PMEI4_STR-CDC12 sy-vline 
WA_PMEI4_STR-TPA13 sy-vline 
WA_PMEI4_STR-CDC13 sy-vline 
WA_PMEI4_STR-TPA14 sy-vline 
WA_PMEI4_STR-CDC14 sy-vline 
WA_PMEI4_STR-TPA15 sy-vline 
WA_PMEI4_STR-CDC15 sy-vline 
WA_PMEI4_STR-TPA16 sy-vline 
WA_PMEI4_STR-CDC16 sy-vline 
WA_PMEI4_STR-TPA17 sy-vline 
WA_PMEI4_STR-CDC17 sy-vline 
WA_PMEI4_STR-TPA18 sy-vline 
WA_PMEI4_STR-CDC18 sy-vline 
WA_PMEI4_STR-TPA19 sy-vline 
WA_PMEI4_STR-CDC19 sy-vline 
WA_PMEI4_STR-TPA20 sy-vline 
WA_PMEI4_STR-CDC20 sy-vline 
WA_PMEI4_STR-TPA21 sy-vline 
WA_PMEI4_STR-CDC21 sy-vline 
WA_PMEI4_STR-TPA22 sy-vline 
WA_PMEI4_STR-CDC22 sy-vline 
WA_PMEI4_STR-TPA23 sy-vline 
WA_PMEI4_STR-CDC23 sy-vline 
WA_PMEI4_STR-TPA24 sy-vline 
WA_PMEI4_STR-CDC24 sy-vline 
WA_PMEI4_STR-TPA25 sy-vline 
WA_PMEI4_STR-CDC25 sy-vline 
WA_PMEI4_STR-TPA26 sy-vline 
WA_PMEI4_STR-CDC26 sy-vline 
WA_PMEI4_STR-TPA27 sy-vline 
WA_PMEI4_STR-CDC27 sy-vline 
WA_PMEI4_STR-TPA28 sy-vline 
WA_PMEI4_STR-CDC28 sy-vline 
WA_PMEI4_STR-TPA29 sy-vline 
WA_PMEI4_STR-CDC29 sy-vline 
WA_PMEI4_STR-TPA30 sy-vline 
WA_PMEI4_STR-CDC30 sy-vline 
WA_PMEI4_STR-DATO1 sy-vline 
WA_PMEI4_STR-CDDA1 sy-vline 
WA_PMEI4_STR-DATO2 sy-vline 
WA_PMEI4_STR-CDDA2 sy-vline 
WA_PMEI4_STR-DATO3 sy-vline 
WA_PMEI4_STR-CDDA3 sy-vline 
WA_PMEI4_STR-DATO4 sy-vline 
WA_PMEI4_STR-CDDA4 sy-vline 
WA_PMEI4_STR-DATO5 sy-vline 
WA_PMEI4_STR-CDDA5 sy-vline 
WA_PMEI4_STR-DATO6 sy-vline 
WA_PMEI4_STR-CDDA6 sy-vline 
WA_PMEI4_STR-DATO7 sy-vline 
WA_PMEI4_STR-CDDA7 sy-vline 
WA_PMEI4_STR-DATO8 sy-vline 
WA_PMEI4_STR-CDDA8 sy-vline 
WA_PMEI4_STR-DATO9 sy-vline 
WA_PMEI4_STR-CDDA9 sy-vline 
WA_PMEI4_STR-DAT10 sy-vline 
WA_PMEI4_STR-CDD10 sy-vline 
WA_PMEI4_STR-DAT11 sy-vline 
WA_PMEI4_STR-CDD11 sy-vline 
WA_PMEI4_STR-DAT12 sy-vline 
WA_PMEI4_STR-CDD12 sy-vline 
WA_PMEI4_STR-DAT13 sy-vline 
WA_PMEI4_STR-CDD13 sy-vline 
WA_PMEI4_STR-DAT14 sy-vline 
WA_PMEI4_STR-CDD14 sy-vline 
WA_PMEI4_STR-DAT15 sy-vline 
WA_PMEI4_STR-CDD15 sy-vline 
WA_PMEI4_STR-DAT16 sy-vline 
WA_PMEI4_STR-CDD16 sy-vline 
WA_PMEI4_STR-DAT17 sy-vline 
WA_PMEI4_STR-CDD17 sy-vline 
WA_PMEI4_STR-DAT18 sy-vline 
WA_PMEI4_STR-CDD18 sy-vline 
WA_PMEI4_STR-DAT19 sy-vline 
WA_PMEI4_STR-CDD19 sy-vline 
WA_PMEI4_STR-DAT20 sy-vline 
WA_PMEI4_STR-CDD20 sy-vline 
WA_PMEI4_STR-DAT21 sy-vline 
WA_PMEI4_STR-CDD21 sy-vline 
WA_PMEI4_STR-DAT22 sy-vline 
WA_PMEI4_STR-CDD22 sy-vline 
WA_PMEI4_STR-DAT23 sy-vline 
WA_PMEI4_STR-CDD23 sy-vline 
WA_PMEI4_STR-DAT24 sy-vline 
WA_PMEI4_STR-CDD24 sy-vline 
WA_PMEI4_STR-DAT25 sy-vline 
WA_PMEI4_STR-CDD25 sy-vline 
WA_PMEI4_STR-DAT26 sy-vline 
WA_PMEI4_STR-CDD26 sy-vline 
WA_PMEI4_STR-DAT27 sy-vline 
WA_PMEI4_STR-CDD27 sy-vline 
WA_PMEI4_STR-DAT28 sy-vline 
WA_PMEI4_STR-CDD28 sy-vline 
WA_PMEI4_STR-DAT29 sy-vline 
WA_PMEI4_STR-CDD29 sy-vline 
WA_PMEI4_STR-DAT30 sy-vline 
WA_PMEI4_STR-CDD30 sy-vline 
WA_PMEI4_STR-ANSVH sy-vline 
WA_PMEI4_STR-AR770 sy-vline      INTO ld_text SEPARATED BY SPACE.

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