ABAP Select data from SAP table ZHLB1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ZHLB1 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 ZHLB1.

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 ZHLB1 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_ZHLB1 TYPE STANDARD TABLE OF ZHLB1,
      WA_ZHLB1 TYPE ZHLB1,
      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: <ZHLB1> TYPE ZHLB1.


*Original SAP ECC Select statement 
SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ZHLB1
  INTO TABLE IT_ZHLB1.

*Select data and declare internal table using  in-line method @DATA 
SELECT *
  FROM ZHLB1
  INTO TABLE @DATA(IT_ZHLB12).

*You can also declare the header/work area using the  in-line DATA declaration method 
READ TABLE IT_ZHLB1 INDEX 1 INTO DATA(WA_ZHLB12).


*Latest ABAP cloud SELECT statement using the FIELDS syntax. But note to following the clean core principles you should not select directly from an SAP table 
* and should instead use a CDS view or create you own CDS and use that.
SELECT FROM ZHLB1
  FIELDS *
*  WHERE would go here
  INTO TABLE @DATA(IT_ZHLB12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ZHLB1 ASSIGNING <ZHLB1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ZHLB1>-BUKRS = 1.
<ZHLB1>-BUDAT = 1.
<ZHLB1>-BELNR = 1.
<ZHLB1>-GJAHR = 1.
<ZHLB1>-BLDAT = 1.

ENDLOOP.

LOOP AT IT_ZHLB1 INTO WA_ZHLB1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ZHLB1-BLART, sy-vline,
  WA_ZHLB1-XBLNR, sy-vline,
  WA_ZHLB1-BUZEI, sy-vline,
  WA_ZHLB1-KOART, sy-vline,
  WA_ZHLB1-BSCHL, sy-vline,
  WA_ZHLB1-UMSKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ZHLB1 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_ZHLB1 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_ZHLB1 INTO WA_ZHLB1.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field BDIFF
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-BDIFF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-BDIFF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKFBT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-SKFBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-SKFBT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKNTO
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-SKNTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-SKNTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WSKTO
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-WSKTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-WSKTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBT1
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-DMBT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-DMBT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WRBT1
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-WRBT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-WRBT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBT2
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-DMBT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-DMBT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WRBT2
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-WRBT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-WRBT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBT3
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-DMBT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-DMBT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WRBT3
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-WRBT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-WRBT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QSSHB
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-QSSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-QSSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QBSHB
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ZHLB1-QBSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ZHLB1-QBSHB.
WRITE:/ 'New Value:', ld_input.
ENDFORM.