ABAP Select data from SAP table PPE_ACT_MEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPE_ACT_MEM
*  INTO TABLE @DATA(IT_PPE_ACT_MEM2).
*--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_PPE_ACT_MEM INDEX 1 INTO DATA(WA_PPE_ACT_MEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPE_ACT_MEM>-PLANID = 1.
<PPE_ACT_MEM>-MANDT = 1.
<PPE_ACT_MEM>-PNGUID = 1.
<PPE_ACT_MEM>-PNAME = 1.
<PPE_ACT_MEM>-NAMEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPE_ACT_MEM-NAMEID_OTYPE, sy-vline,
  WA_PPE_ACT_MEM-NAMEID_APPLOBJ, sy-vline,
  WA_PPE_ACT_MEM-CLINT, sy-vline,
  WA_PPE_ACT_MEM-PNTYPE, sy-vline,
  WA_PPE_ACT_MEM-APPLOBJ_TYPE, sy-vline,
  WA_PPE_ACT_MEM-TIMSTMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPE_ACT_MEM 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_PPE_ACT_MEM 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_PPE_ACT_MEM INTO WA_PPE_ACT_MEM.


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

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPE_ACT_MEM-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPE_ACT_MEM-LOGSYS.
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_PPE_ACT_MEM_STR, 
PLANID TYPE STRING,
MANDT TYPE STRING,
PNGUID TYPE STRING,
PNAME TYPE STRING,
NAMEID TYPE STRING,
NAMEID_OTYPE TYPE STRING,
NAMEID_APPLOBJ TYPE STRING,
CLINT TYPE STRING,
PNTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
TIMSTMP TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
HISTFLG TYPE STRING,
PLANTYPE TYPE STRING,
PNTYPE TYPE STRING,
MANDT TYPE STRING,
PNTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
PVSLAYER TYPE STRING,
CLASS_MIN TYPE STRING,
CLASS_MAX TYPE STRING,
CONF_FLG TYPE STRING,
KONS_FLG TYPE STRING,
VAR_SCHEMA TYPE STRING,
ACTTYPE TYPE STRING,
FLOTYPE TYPE STRING,
CLINT TYPE STRING,
REF_PNTYPE TYPE STRING,
HIST_MODE TYPE STRING,
HIDE_FLG TYPE STRING,
ICON TYPE STRING,
PDESC TYPE STRING,
CONTEXTENV TYPE STRING,
CLASS TYPE STRING,
KLART TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
ICON_SHOW TYPE STRING,
PNAME_LEN TYPE STRING,
T_PARTOF_PR TYPE STRING,
T_SEQENC_PR TYPE STRING,
T_SEQENC_DATA TYPE STRING,
T_ADD_SEQ_DATA TYPE STRING,
T_OUTPUT_PR TYPE STRING,
T_ASSIGN_PR TYPE STRING,
T_ASSIGN_DATA TYPE STRING,
T_ASSIGN_PN TYPE STRING,
T_PARTOF_PN TYPE STRING,
T_SEQENC_PN TYPE STRING,
T_PVBASS TYPE STRING,
T_PNACT TYPE STRING,
T_PNACTHD TYPE STRING,
T_PNACTOPR TYPE STRING,
T_PALTID TYPE STRING,
T_PAMODD TYPE STRING,
T_PAMODC TYPE STRING,
T_PPERP TYPE STRING,
T_AENNR TYPE STRING,
T_TIMEWIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPE_ACT_MEM_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_PPE_ACT_MEM_STR-PLANID sy-vline 
WA_PPE_ACT_MEM_STR-MANDT sy-vline 
WA_PPE_ACT_MEM_STR-PNGUID sy-vline 
WA_PPE_ACT_MEM_STR-PNAME sy-vline 
WA_PPE_ACT_MEM_STR-NAMEID sy-vline 
WA_PPE_ACT_MEM_STR-NAMEID_OTYPE sy-vline 
WA_PPE_ACT_MEM_STR-NAMEID_APPLOBJ sy-vline 
WA_PPE_ACT_MEM_STR-CLINT sy-vline 
WA_PPE_ACT_MEM_STR-PNTYPE sy-vline 
WA_PPE_ACT_MEM_STR-APPLOBJ_TYPE sy-vline 
WA_PPE_ACT_MEM_STR-TIMSTMP sy-vline 
WA_PPE_ACT_MEM_STR-CREADAT sy-vline 
WA_PPE_ACT_MEM_STR-CREABY sy-vline 
WA_PPE_ACT_MEM_STR-CHNGDAT sy-vline 
WA_PPE_ACT_MEM_STR-CHNGBY sy-vline 
WA_PPE_ACT_MEM_STR-LOGSYS sy-vline 
WA_PPE_ACT_MEM_STR-HISTFLG sy-vline 
WA_PPE_ACT_MEM_STR-PLANTYPE sy-vline 
WA_PPE_ACT_MEM_STR-PNTYPE sy-vline 
WA_PPE_ACT_MEM_STR-MANDT sy-vline 
WA_PPE_ACT_MEM_STR-PNTYPE sy-vline 
WA_PPE_ACT_MEM_STR-APPLOBJ_TYPE sy-vline 
WA_PPE_ACT_MEM_STR-PVSLAYER sy-vline 
WA_PPE_ACT_MEM_STR-CLASS_MIN sy-vline 
WA_PPE_ACT_MEM_STR-CLASS_MAX sy-vline 
WA_PPE_ACT_MEM_STR-CONF_FLG sy-vline 
WA_PPE_ACT_MEM_STR-KONS_FLG sy-vline 
WA_PPE_ACT_MEM_STR-VAR_SCHEMA sy-vline 
WA_PPE_ACT_MEM_STR-ACTTYPE sy-vline 
WA_PPE_ACT_MEM_STR-FLOTYPE sy-vline 
WA_PPE_ACT_MEM_STR-CLINT sy-vline 
WA_PPE_ACT_MEM_STR-REF_PNTYPE sy-vline 
WA_PPE_ACT_MEM_STR-HIST_MODE sy-vline 
WA_PPE_ACT_MEM_STR-HIDE_FLG sy-vline 
WA_PPE_ACT_MEM_STR-ICON sy-vline 
WA_PPE_ACT_MEM_STR-PDESC sy-vline 
WA_PPE_ACT_MEM_STR-CONTEXTENV sy-vline 
WA_PPE_ACT_MEM_STR-CLASS sy-vline 
WA_PPE_ACT_MEM_STR-KLART sy-vline 
WA_PPE_ACT_MEM_STR-CREADAT sy-vline 
WA_PPE_ACT_MEM_STR-CREABY sy-vline 
WA_PPE_ACT_MEM_STR-CHNGDAT sy-vline 
WA_PPE_ACT_MEM_STR-CHNGBY sy-vline 
WA_PPE_ACT_MEM_STR-LOGSYS sy-vline 
WA_PPE_ACT_MEM_STR-ICON_SHOW sy-vline 
WA_PPE_ACT_MEM_STR-PNAME_LEN sy-vline 
WA_PPE_ACT_MEM_STR-T_PARTOF_PR sy-vline 
WA_PPE_ACT_MEM_STR-T_SEQENC_PR sy-vline 
WA_PPE_ACT_MEM_STR-T_SEQENC_DATA sy-vline 
WA_PPE_ACT_MEM_STR-T_ADD_SEQ_DATA sy-vline 
WA_PPE_ACT_MEM_STR-T_OUTPUT_PR sy-vline 
WA_PPE_ACT_MEM_STR-T_ASSIGN_PR sy-vline 
WA_PPE_ACT_MEM_STR-T_ASSIGN_DATA sy-vline 
WA_PPE_ACT_MEM_STR-T_ASSIGN_PN sy-vline 
WA_PPE_ACT_MEM_STR-T_PARTOF_PN sy-vline 
WA_PPE_ACT_MEM_STR-T_SEQENC_PN sy-vline 
WA_PPE_ACT_MEM_STR-T_PVBASS sy-vline 
WA_PPE_ACT_MEM_STR-T_PNACT sy-vline 
WA_PPE_ACT_MEM_STR-T_PNACTHD sy-vline 
WA_PPE_ACT_MEM_STR-T_PNACTOPR sy-vline 
WA_PPE_ACT_MEM_STR-T_PALTID sy-vline 
WA_PPE_ACT_MEM_STR-T_PAMODD sy-vline 
WA_PPE_ACT_MEM_STR-T_PAMODC sy-vline 
WA_PPE_ACT_MEM_STR-T_PPERP sy-vline 
WA_PPE_ACT_MEM_STR-T_AENNR sy-vline 
WA_PPE_ACT_MEM_STR-T_TIMEWIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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