ABAP Select data from SAP table ISJP_S_INV_SUM_PARAMETER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISJP_S_INV_SUM_PARAMETER
*  INTO TABLE @DATA(IT_ISJP_S_INV_SUM_PARAMETER2).
*--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_ISJP_S_INV_SUM_PARAMETER INDEX 1 INTO DATA(WA_ISJP_S_INV_SUM_PARAMETER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISJP_S_INV_SUM_PARAMETER>-BUKRS = 1.
<ISJP_S_INV_SUM_PARAMETER>-GJAHR = 1.
<ISJP_S_INV_SUM_PARAMETER>-BELNR = 1.
<ISJP_S_INV_SUM_PARAMETER>-BUZEI = 1.
<ISJP_S_INV_SUM_PARAMETER>-MINR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISJP_S_INV_SUM_PARAMETER-NOTINCL, sy-vline,
  WA_ISJP_S_INV_SUM_PARAMETER-INVSUMPAYER, sy-vline,
  WA_ISJP_S_INV_SUM_PARAMETER-INVSUMRECIP, sy-vline,
  WA_ISJP_S_INV_SUM_PARAMETER-CLOSDATE, sy-vline,
  WA_ISJP_S_INV_SUM_PARAMETER-CLOSDATEFLAG, sy-vline,
  WA_ISJP_S_INV_SUM_PARAMETER-CLOSDATEREASON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISJP_S_INV_SUM_PARAMETER 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_ISJP_S_INV_SUM_PARAMETER 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_ISJP_S_INV_SUM_PARAMETER INTO WA_ISJP_S_INV_SUM_PARAMETER.


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

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

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

*Conversion exit ALPHA, internal->external for field INVSUMRECIP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISJP_S_INV_SUM_PARAMETER-INVSUMRECIP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISJP_S_INV_SUM_PARAMETER-INVSUMRECIP.
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_ISJP_S_INV_SUM_PARAMETER_STR, 
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
MINR TYPE STRING,
NOTINCL TYPE STRING,
INVSUMPAYER TYPE STRING,
INVSUMRECIP TYPE STRING,
CLOSDATE TYPE STRING,
CLOSDATEFLAG TYPE STRING,
CLOSDATEREASON TYPE STRING,
NETDT TYPE STRING,
NETDTFLAG TYPE STRING,
NETDT_REASON TYPE STRING,
GRUNIT TYPE STRING,
GRUNITFLAG TYPE STRING,
GRUNIT_REASON TYPE STRING,
INVSEP TYPE STRING,
INVSEPFLAG TYPE STRING,
INVSEP_REASON TYPE STRING,
MIBLOCK TYPE STRING,
MIBLOCKFLAG TYPE STRING,
MIBLOCK_REASON TYPE STRING,
INVSUMREL TYPE STRING,
INVSUMRELFLAG TYPE STRING,
INVSUMREL_REASON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISJP_S_INV_SUM_PARAMETER_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_ISJP_S_INV_SUM_PARAMETER_STR-BUKRS sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-GJAHR sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-BELNR sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-BUZEI sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-MINR sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-NOTINCL sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSUMPAYER sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSUMRECIP sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-CLOSDATE sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-CLOSDATEFLAG sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-CLOSDATEREASON sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-NETDT sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-NETDTFLAG sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-NETDT_REASON sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-GRUNIT sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-GRUNITFLAG sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-GRUNIT_REASON sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSEP sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSEPFLAG sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSEP_REASON sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-MIBLOCK sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-MIBLOCKFLAG sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-MIBLOCK_REASON sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSUMREL sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSUMRELFLAG sy-vline 
WA_ISJP_S_INV_SUM_PARAMETER_STR-INVSUMREL_REASON sy-vline      INTO ld_text SEPARATED BY SPACE.

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