ABAP Select data from SAP table BAMANENV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAMANENV
*  INTO TABLE @DATA(IT_BAMANENV2).
*--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_BAMANENV INDEX 1 INTO DATA(WA_BAMANENV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAMANENV>-STARTDATE = 1.
<BAMANENV>-ENDDATE = 1.
<BAMANENV>-CLIENT = 1.
<BAMANENV>-DOCUMENT = 1.
<BAMANENV>-HITLSTSIZE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAMANENV-USEDBOUNDS, sy-vline,
  WA_BAMANENV-BOUND0, sy-vline,
  WA_BAMANENV-BOUND1, sy-vline,
  WA_BAMANENV-BOUND2, sy-vline,
  WA_BAMANENV-BOUND3, sy-vline,
  WA_BAMANENV-BOUND4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAMANENV 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_BAMANENV 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_BAMANENV INTO WA_BAMANENV.


*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_BAMANENV_STR, 
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
CLIENT TYPE STRING,
DOCUMENT TYPE STRING,
HITLSTSIZE TYPE STRING,
USEDBOUNDS TYPE STRING,
BOUND0 TYPE STRING,
BOUND1 TYPE STRING,
BOUND2 TYPE STRING,
BOUND3 TYPE STRING,
BOUND4 TYPE STRING,
BOUND5 TYPE STRING,
BOUND6 TYPE STRING,
BOUND7 TYPE STRING,
BOUND8 TYPE STRING,
BOUND9 TYPE STRING,
BOUND10 TYPE STRING,
BOUND11 TYPE STRING,
BOUND12 TYPE STRING,
BOUND13 TYPE STRING,
BOUND14 TYPE STRING,
BOUND15 TYPE STRING,
BOUND16 TYPE STRING,
BOUND17 TYPE STRING,
BOUND18 TYPE STRING,
OBJTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAMANENV_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_BAMANENV_STR-STARTDATE sy-vline 
WA_BAMANENV_STR-ENDDATE sy-vline 
WA_BAMANENV_STR-CLIENT sy-vline 
WA_BAMANENV_STR-DOCUMENT sy-vline 
WA_BAMANENV_STR-HITLSTSIZE sy-vline 
WA_BAMANENV_STR-USEDBOUNDS sy-vline 
WA_BAMANENV_STR-BOUND0 sy-vline 
WA_BAMANENV_STR-BOUND1 sy-vline 
WA_BAMANENV_STR-BOUND2 sy-vline 
WA_BAMANENV_STR-BOUND3 sy-vline 
WA_BAMANENV_STR-BOUND4 sy-vline 
WA_BAMANENV_STR-BOUND5 sy-vline 
WA_BAMANENV_STR-BOUND6 sy-vline 
WA_BAMANENV_STR-BOUND7 sy-vline 
WA_BAMANENV_STR-BOUND8 sy-vline 
WA_BAMANENV_STR-BOUND9 sy-vline 
WA_BAMANENV_STR-BOUND10 sy-vline 
WA_BAMANENV_STR-BOUND11 sy-vline 
WA_BAMANENV_STR-BOUND12 sy-vline 
WA_BAMANENV_STR-BOUND13 sy-vline 
WA_BAMANENV_STR-BOUND14 sy-vline 
WA_BAMANENV_STR-BOUND15 sy-vline 
WA_BAMANENV_STR-BOUND16 sy-vline 
WA_BAMANENV_STR-BOUND17 sy-vline 
WA_BAMANENV_STR-BOUND18 sy-vline 
WA_BAMANENV_STR-OBJTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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