ABAP Select data from SAP table JBRREPGAPRE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBRREPGAPRE
*  INTO TABLE @DATA(IT_JBRREPGAPRE2).
*--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_JBRREPGAPRE INDEX 1 INTO DATA(WA_JBRREPGAPRE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBRREPGAPRE>-MANDT = 1.
<JBRREPGAPRE>-DATUM = 1.
<JBRREPGAPRE>-HORIGAP = 1.
<JBRREPGAPRE>-AUSWERTUNG = 1.
<JBRREPGAPRE>-GAPART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBRREPGAPRE-SICHTID, sy-vline,
  WA_JBRREPGAPRE-BPID, sy-vline,
  WA_JBRREPGAPRE-PHID, sy-vline,
  WA_JBRREPGAPRE-NAME, sy-vline,
  WA_JBRREPGAPRE-LZB, sy-vline,
  WA_JBRREPGAPRE-LZBDATUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBRREPGAPRE 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_JBRREPGAPRE 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_JBRREPGAPRE INTO WA_JBRREPGAPRE.


*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 PNAME, internal->external for field NAME
CALL FUNCTION 'CONVERSION_EXIT_PNAME_OUTPUT'
  EXPORTING
    input =                      WA_JBRREPGAPRE-NAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBRREPGAPRE-NAME.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field RSIMBSTD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBRREPGAPRE-RSIMBSTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBRREPGAPRE-RSIMBSTD.
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_JBRREPGAPRE_STR, 
MANDT TYPE STRING,
DATUM TYPE STRING,
HORIGAP TYPE STRING,
AUSWERTUNG TYPE STRING,
GAPART TYPE STRING,
SICHTID TYPE STRING,
BPID TYPE STRING,
PHID TYPE STRING,
NAME TYPE STRING,
LZB TYPE STRING,
LZBDATUM TYPE STRING,
LIQUIDST TYPE STRING,
BILKENNZ TYPE STRING,
AKTPASS TYPE STRING,
ZINSKAPB TYPE STRING,
ZINSTILG TYPE STRING,
RSIMLFNR TYPE STRING,
RSIMBSTD TYPE STRING,
WAERS TYPE STRING,
DBS TYPE STRING,
SBS TYPE STRING,
ABL TYPE STRING,
CFL TYPE STRING,
LIQU TYPE STRING,
GPZ_DBS TYPE STRING,
GPZ_SBS TYPE STRING,
GPZ_ABL TYPE STRING,
ANZGW TYPE STRING,
DBS_AW TYPE STRING,
SBS_AW TYPE STRING,
ABL_AW TYPE STRING,
CFL_AW TYPE STRING,
LIQU_AW TYPE STRING,
GPZ_DBS_AW TYPE STRING,
GPZ_SBS_AW TYPE STRING,
GPZ_ABL_AW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBRREPGAPRE_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_JBRREPGAPRE_STR-MANDT sy-vline 
WA_JBRREPGAPRE_STR-DATUM sy-vline 
WA_JBRREPGAPRE_STR-HORIGAP sy-vline 
WA_JBRREPGAPRE_STR-AUSWERTUNG sy-vline 
WA_JBRREPGAPRE_STR-GAPART sy-vline 
WA_JBRREPGAPRE_STR-SICHTID sy-vline 
WA_JBRREPGAPRE_STR-BPID sy-vline 
WA_JBRREPGAPRE_STR-PHID sy-vline 
WA_JBRREPGAPRE_STR-NAME sy-vline 
WA_JBRREPGAPRE_STR-LZB sy-vline 
WA_JBRREPGAPRE_STR-LZBDATUM sy-vline 
WA_JBRREPGAPRE_STR-LIQUIDST sy-vline 
WA_JBRREPGAPRE_STR-BILKENNZ sy-vline 
WA_JBRREPGAPRE_STR-AKTPASS sy-vline 
WA_JBRREPGAPRE_STR-ZINSKAPB sy-vline 
WA_JBRREPGAPRE_STR-ZINSTILG sy-vline 
WA_JBRREPGAPRE_STR-RSIMLFNR sy-vline 
WA_JBRREPGAPRE_STR-RSIMBSTD sy-vline 
WA_JBRREPGAPRE_STR-WAERS sy-vline 
WA_JBRREPGAPRE_STR-DBS sy-vline 
WA_JBRREPGAPRE_STR-SBS sy-vline 
WA_JBRREPGAPRE_STR-ABL sy-vline 
WA_JBRREPGAPRE_STR-CFL sy-vline 
WA_JBRREPGAPRE_STR-LIQU sy-vline 
WA_JBRREPGAPRE_STR-GPZ_DBS sy-vline 
WA_JBRREPGAPRE_STR-GPZ_SBS sy-vline 
WA_JBRREPGAPRE_STR-GPZ_ABL sy-vline 
WA_JBRREPGAPRE_STR-ANZGW sy-vline 
WA_JBRREPGAPRE_STR-DBS_AW sy-vline 
WA_JBRREPGAPRE_STR-SBS_AW sy-vline 
WA_JBRREPGAPRE_STR-ABL_AW sy-vline 
WA_JBRREPGAPRE_STR-CFL_AW sy-vline 
WA_JBRREPGAPRE_STR-LIQU_AW sy-vline 
WA_JBRREPGAPRE_STR-GPZ_DBS_AW sy-vline 
WA_JBRREPGAPRE_STR-GPZ_SBS_AW sy-vline 
WA_JBRREPGAPRE_STR-GPZ_ABL_AW sy-vline      INTO ld_text SEPARATED BY SPACE.

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