ABAP Select data from SAP table ERS_PRITAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ERS_PRITAB
*  INTO TABLE @DATA(IT_ERS_PRITAB2).
*--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_ERS_PRITAB INDEX 1 INTO DATA(WA_ERS_PRITAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ERS_PRITAB>-BBELNR = 1.
<ERS_PRITAB>-BGJAHR = 1.
<ERS_PRITAB>-MANDT = 1.
<ERS_PRITAB>-BUDAT = 1.
<ERS_PRITAB>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ERS_PRITAB-BELNR, sy-vline,
  WA_ERS_PRITAB-BUZEI, sy-vline,
  WA_ERS_PRITAB-GJAHR, sy-vline,
  WA_ERS_PRITAB-EBELN, sy-vline,
  WA_ERS_PRITAB-EBELP, sy-vline,
  WA_ERS_PRITAB-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ERS_PRITAB 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_ERS_PRITAB 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_ERS_PRITAB INTO WA_ERS_PRITAB.


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

*Conversion exit GJAHR, internal->external for field BGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ERS_PRITAB-BGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERS_PRITAB-BGJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ERS_PRITAB-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERS_PRITAB-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ERS_PRITAB-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERS_PRITAB-LFGJA.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERS_PRITAB-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERS_PRITAB-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERS_PRITAB-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERS_PRITAB-MEINS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field A1
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ERS_PRITAB-A1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERS_PRITAB-A1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field A2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ERS_PRITAB-A2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERS_PRITAB-A2.
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_ERS_PRITAB_STR, 
BBELNR TYPE STRING,
BGJAHR TYPE STRING,
MANDT TYPE STRING,
BUDAT TYPE STRING,
LIFNR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
GJAHR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
LFGJA TYPE STRING,
LFBNR TYPE STRING,
LFPOS TYPE STRING,
CPUDTTM TYPE STRING,
BPMNG TYPE STRING,
BPRME TYPE STRING,
DMBTR TYPE STRING,
MEINS TYPE STRING,
MENGE TYPE STRING,
MWSKZ TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
PSTYP TYPE STRING,
SHKZG TYPE STRING,
TXJCD TYPE STRING,
TXZ01 TYPE STRING,
WAERS TYPE STRING,
WEBRE TYPE STRING,
WRBTR TYPE STRING,
XBLNR TYPE STRING,
ZEKKN TYPE STRING,
VFNET TYPE STRING,
LIFRE TYPE STRING,
REFWR TYPE STRING,
REMNG TYPE STRING,
REWAE TYPE STRING,
A1 TYPE STRING,
A2 TYPE STRING,
A3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ERS_PRITAB_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_ERS_PRITAB_STR-BBELNR sy-vline 
WA_ERS_PRITAB_STR-BGJAHR sy-vline 
WA_ERS_PRITAB_STR-MANDT sy-vline 
WA_ERS_PRITAB_STR-BUDAT sy-vline 
WA_ERS_PRITAB_STR-LIFNR sy-vline 
WA_ERS_PRITAB_STR-BELNR sy-vline 
WA_ERS_PRITAB_STR-BUZEI sy-vline 
WA_ERS_PRITAB_STR-GJAHR sy-vline 
WA_ERS_PRITAB_STR-EBELN sy-vline 
WA_ERS_PRITAB_STR-EBELP sy-vline 
WA_ERS_PRITAB_STR-BUKRS sy-vline 
WA_ERS_PRITAB_STR-WERKS sy-vline 
WA_ERS_PRITAB_STR-LFGJA sy-vline 
WA_ERS_PRITAB_STR-LFBNR sy-vline 
WA_ERS_PRITAB_STR-LFPOS sy-vline 
WA_ERS_PRITAB_STR-CPUDTTM sy-vline 
WA_ERS_PRITAB_STR-BPMNG sy-vline 
WA_ERS_PRITAB_STR-BPRME sy-vline 
WA_ERS_PRITAB_STR-DMBTR sy-vline 
WA_ERS_PRITAB_STR-MEINS sy-vline 
WA_ERS_PRITAB_STR-MENGE sy-vline 
WA_ERS_PRITAB_STR-MWSKZ sy-vline 
WA_ERS_PRITAB_STR-NETPR sy-vline 
WA_ERS_PRITAB_STR-PEINH sy-vline 
WA_ERS_PRITAB_STR-PSTYP sy-vline 
WA_ERS_PRITAB_STR-SHKZG sy-vline 
WA_ERS_PRITAB_STR-TXJCD sy-vline 
WA_ERS_PRITAB_STR-TXZ01 sy-vline 
WA_ERS_PRITAB_STR-WAERS sy-vline 
WA_ERS_PRITAB_STR-WEBRE sy-vline 
WA_ERS_PRITAB_STR-WRBTR sy-vline 
WA_ERS_PRITAB_STR-XBLNR sy-vline 
WA_ERS_PRITAB_STR-ZEKKN sy-vline 
WA_ERS_PRITAB_STR-VFNET sy-vline 
WA_ERS_PRITAB_STR-LIFRE sy-vline 
WA_ERS_PRITAB_STR-REFWR sy-vline 
WA_ERS_PRITAB_STR-REMNG sy-vline 
WA_ERS_PRITAB_STR-REWAE sy-vline 
WA_ERS_PRITAB_STR-A1 sy-vline 
WA_ERS_PRITAB_STR-A2 sy-vline 
WA_ERS_PRITAB_STR-A3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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