ABAP Select data from SAP table BAPIAGRMNT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIAGRMNT
*  INTO TABLE @DATA(IT_BAPIAGRMNT2).
*--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_BAPIAGRMNT INDEX 1 INTO DATA(WA_BAPIAGRMNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIAGRMNT>-OPERATION = 1.
<BAPIAGRMNT>-AGREE_COND = 1.
<BAPIAGRMNT>-SALES_ORG = 1.
<BAPIAGRMNT>-DISTR_CHAN = 1.
<BAPIAGRMNT>-DIVISION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIAGRMNT-AGR_TYPE, sy-vline,
  WA_BAPIAGRMNT-CATEGORY, sy-vline,
  WA_BAPIAGRMNT-APPLICATIO, sy-vline,
  WA_BAPIAGRMNT-CREATED_BY, sy-vline,
  WA_BAPIAGRMNT-CREAT_DATE, sy-vline,
  WA_BAPIAGRMNT-CREAT_TIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIAGRMNT 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_BAPIAGRMNT 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_BAPIAGRMNT INTO WA_BAPIAGRMNT.


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

*Conversion exit ALPHA, internal->external for field RECIPIENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIAGRMNT-RECIPIENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIAGRMNT-RECIPIENT.
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_BAPIAGRMNT_STR, 
OPERATION TYPE STRING,
AGREE_COND TYPE STRING,
SALES_ORG TYPE STRING,
DISTR_CHAN TYPE STRING,
DIVISION TYPE STRING,
AGR_TYPE TYPE STRING,
CATEGORY TYPE STRING,
APPLICATIO TYPE STRING,
CREATED_BY TYPE STRING,
CREAT_DATE TYPE STRING,
CREAT_TIME TYPE STRING,
CHANGED_BY TYPE STRING,
CHANG_DATE TYPE STRING,
CHANG_TIME TYPE STRING,
RECIPIENT TYPE STRING,
AGRMT_CURR TYPE STRING,
AGCURR_ISO TYPE STRING,
EX_DESCR TYPE STRING,
STATOFAGRE TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
COND_GROUP TYPE STRING,
AGRMT_TEXT TYPE STRING,
PAY_METHOD TYPE STRING,
FRMOBJ_TYP TYPE STRING,
FRMOBJ_KEY TYPE STRING,
DEL_FLAG TYPE STRING,
PAY_EXTERN TYPE STRING,
ACCRUE_IN_CRM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIAGRMNT_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_BAPIAGRMNT_STR-OPERATION sy-vline 
WA_BAPIAGRMNT_STR-AGREE_COND sy-vline 
WA_BAPIAGRMNT_STR-SALES_ORG sy-vline 
WA_BAPIAGRMNT_STR-DISTR_CHAN sy-vline 
WA_BAPIAGRMNT_STR-DIVISION sy-vline 
WA_BAPIAGRMNT_STR-AGR_TYPE sy-vline 
WA_BAPIAGRMNT_STR-CATEGORY sy-vline 
WA_BAPIAGRMNT_STR-APPLICATIO sy-vline 
WA_BAPIAGRMNT_STR-CREATED_BY sy-vline 
WA_BAPIAGRMNT_STR-CREAT_DATE sy-vline 
WA_BAPIAGRMNT_STR-CREAT_TIME sy-vline 
WA_BAPIAGRMNT_STR-CHANGED_BY sy-vline 
WA_BAPIAGRMNT_STR-CHANG_DATE sy-vline 
WA_BAPIAGRMNT_STR-CHANG_TIME sy-vline 
WA_BAPIAGRMNT_STR-RECIPIENT sy-vline 
WA_BAPIAGRMNT_STR-AGRMT_CURR sy-vline 
WA_BAPIAGRMNT_STR-AGCURR_ISO sy-vline 
WA_BAPIAGRMNT_STR-EX_DESCR sy-vline 
WA_BAPIAGRMNT_STR-STATOFAGRE sy-vline 
WA_BAPIAGRMNT_STR-VALID_FROM sy-vline 
WA_BAPIAGRMNT_STR-VALID_TO sy-vline 
WA_BAPIAGRMNT_STR-COND_GROUP sy-vline 
WA_BAPIAGRMNT_STR-AGRMT_TEXT sy-vline 
WA_BAPIAGRMNT_STR-PAY_METHOD sy-vline 
WA_BAPIAGRMNT_STR-FRMOBJ_TYP sy-vline 
WA_BAPIAGRMNT_STR-FRMOBJ_KEY sy-vline 
WA_BAPIAGRMNT_STR-DEL_FLAG sy-vline 
WA_BAPIAGRMNT_STR-PAY_EXTERN sy-vline 
WA_BAPIAGRMNT_STR-ACCRUE_IN_CRM sy-vline      INTO ld_text SEPARATED BY SPACE.

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