ABAP Select data from SAP table REHOVIAKHO20_TAB into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP REHOVIAKHO20_TAB 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 REHOVIAKHO20_TAB. 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 REHOVIAKHO20_TAB 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_REHOVIAKHO20_TAB TYPE STANDARD TABLE OF REHOVIAKHO20_TAB,
      WA_REHOVIAKHO20_TAB TYPE REHOVIAKHO20_TAB,
      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: <REHOVIAKHO20_TAB> TYPE REHOVIAKHO20_TAB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_REHOVIAKHO20_TAB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM REHOVIAKHO20_TAB
  INTO TABLE IT_REHOVIAKHO20_TAB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REHOVIAKHO20_TAB
*  INTO TABLE @DATA(IT_REHOVIAKHO20_TAB2).
*--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_REHOVIAKHO20_TAB INDEX 1 INTO DATA(WA_REHOVIAKHO20_TAB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_REHOVIAKHO20_TAB ASSIGNING <REHOVIAKHO20_TAB>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<REHOVIAKHO20_TAB>-DBISPER = 1.
<REHOVIAKHO20_TAB>-SKOART = 1.
<REHOVIAKHO20_TAB>-VVBKOPTG = 1.
<REHOVIAKHO20_TAB>-BNETTO = 1.
<REHOVIAKHO20_TAB>-BSTEUER = 1.
ENDLOOP.

LOOP AT IT_REHOVIAKHO20_TAB INTO WA_REHOVIAKHO20_TAB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REHOVIAKHO20_TAB-BHWHR, sy-vline,
WA_REHOVIAKHO20_TAB-BGUFO, sy-vline,
WA_REHOVIAKHO20_TAB-BMWST, sy-vline,
WA_REHOVIAKHO20_TAB-MWSKZ, sy-vline,
WA_REHOVIAKHO20_TAB-DVZNEU, sy-vline,
WA_REHOVIAKHO20_TAB-BVZNEU, sy-vline.
ENDLOOP. *Add any further fields from structure WA_REHOVIAKHO20_TAB 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_REHOVIAKHO20_TAB 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_REHOVIAKHO20_TAB INTO WA_REHOVIAKHO20_TAB. *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_REHOVIAKHO20_TAB_STR,
DBISPER TYPE STRING,
SKOART TYPE STRING,
VVBKOPTG TYPE STRING,
BNETTO TYPE STRING,
BSTEUER TYPE STRING,
BHWHR TYPE STRING,
BGUFO TYPE STRING,
BMWST TYPE STRING,
MWSKZ TYPE STRING,
DVZNEU TYPE STRING,
BVZNEU TYPE STRING,
BKONDALT TYPE STRING,
VVSKVZA TYPE STRING,
DABRECH TYPE STRING,
VVABBLN TYPE STRING,
DMBTR TYPE STRING,
MWSTS TYPE STRING,
BNAVST TYPE STRING,
BSTBAS TYPE STRING,
BSTBTR TYPE STRING,
PERHVZ TYPE STRING,
BSTKORR TYPE STRING,
ABREART TYPE STRING,
TXJCD TYPE STRING,
MAXCOST TYPE STRING,
REBKOPTG TYPE STRING,
BNETTO_REAL TYPE STRING,
BSTBAS_REAL TYPE STRING,
BSTBTR_REAL TYPE STRING,END OF T_EKKO_STR. DATA: WA_REHOVIAKHO20_TAB_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_REHOVIAKHO20_TAB_STR-DBISPER sy-vline
WA_REHOVIAKHO20_TAB_STR-SKOART sy-vline
WA_REHOVIAKHO20_TAB_STR-VVBKOPTG sy-vline
WA_REHOVIAKHO20_TAB_STR-BNETTO sy-vline
WA_REHOVIAKHO20_TAB_STR-BSTEUER sy-vline
WA_REHOVIAKHO20_TAB_STR-BHWHR sy-vline
WA_REHOVIAKHO20_TAB_STR-BGUFO sy-vline
WA_REHOVIAKHO20_TAB_STR-BMWST sy-vline
WA_REHOVIAKHO20_TAB_STR-MWSKZ sy-vline
WA_REHOVIAKHO20_TAB_STR-DVZNEU sy-vline
WA_REHOVIAKHO20_TAB_STR-BVZNEU sy-vline
WA_REHOVIAKHO20_TAB_STR-BKONDALT sy-vline
WA_REHOVIAKHO20_TAB_STR-VVSKVZA sy-vline
WA_REHOVIAKHO20_TAB_STR-DABRECH sy-vline
WA_REHOVIAKHO20_TAB_STR-VVABBLN sy-vline
WA_REHOVIAKHO20_TAB_STR-DMBTR sy-vline
WA_REHOVIAKHO20_TAB_STR-MWSTS sy-vline
WA_REHOVIAKHO20_TAB_STR-BNAVST sy-vline
WA_REHOVIAKHO20_TAB_STR-BSTBAS sy-vline
WA_REHOVIAKHO20_TAB_STR-BSTBTR sy-vline
WA_REHOVIAKHO20_TAB_STR-PERHVZ sy-vline
WA_REHOVIAKHO20_TAB_STR-BSTKORR sy-vline
WA_REHOVIAKHO20_TAB_STR-ABREART sy-vline
WA_REHOVIAKHO20_TAB_STR-TXJCD sy-vline
WA_REHOVIAKHO20_TAB_STR-MAXCOST sy-vline
WA_REHOVIAKHO20_TAB_STR-REBKOPTG sy-vline
WA_REHOVIAKHO20_TAB_STR-BNETTO_REAL sy-vline
WA_REHOVIAKHO20_TAB_STR-BSTBAS_REAL sy-vline
WA_REHOVIAKHO20_TAB_STR-BSTBTR_REAL sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.