ABAP Select data from SAP table TDS_ME_OA_AGRHEADERCOND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_ME_OA_AGRHEADERCOND
*  INTO TABLE @DATA(IT_TDS_ME_OA_AGRHEADERCOND2).
*--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_TDS_ME_OA_AGRHEADERCOND INDEX 1 INTO DATA(WA_TDS_ME_OA_AGRHEADERCOND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_ME_OA_AGRHEADERCOND>-MANDT = 1.
<TDS_ME_OA_AGRHEADERCOND>-DATAB = 1.
<TDS_ME_OA_AGRHEADERCOND>-DATBI = 1.
<TDS_ME_OA_AGRHEADERCOND>-KBETR = 1.
<TDS_ME_OA_AGRHEADERCOND>-KOEIN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_ME_OA_AGRHEADERCOND-KPEIN, sy-vline,
  WA_TDS_ME_OA_AGRHEADERCOND-KMEIN, sy-vline,
  WA_TDS_ME_OA_AGRHEADERCOND-STFKZ, sy-vline,
  WA_TDS_ME_OA_AGRHEADERCOND-KSTBM, sy-vline,
  WA_TDS_ME_OA_AGRHEADERCOND-KONMS, sy-vline,
  WA_TDS_ME_OA_AGRHEADERCOND-KSTBW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_ME_OA_AGRHEADERCOND 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_TDS_ME_OA_AGRHEADERCOND 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_TDS_ME_OA_AGRHEADERCOND INTO WA_TDS_ME_OA_AGRHEADERCOND.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ME_OA_AGRHEADERCOND-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ME_OA_AGRHEADERCOND-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KONMS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ME_OA_AGRHEADERCOND-KONMS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ME_OA_AGRHEADERCOND-KONMS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASESCHEDULINGAGREEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ME_OA_AGRHEADERCOND-PURCHASESCHEDULINGAGREEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ME_OA_AGRHEADERCOND-PURCHASESCHEDULINGAGREEMENT.
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_TDS_ME_OA_AGRHEADERCOND_STR, 
MANDT TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
KBETR TYPE STRING,
KOEIN TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
STFKZ TYPE STRING,
KSTBM TYPE STRING,
KONMS TYPE STRING,
KSTBW TYPE STRING,
KONWS TYPE STRING,
KWERT TYPE STRING,
SUPOS TYPE STRING,
FKWRT TYPE STRING,
EUROPRICE TYPE STRING,
PURCHASESCHEDULINGAGREEMENT TYPE STRING,
KSCHL TYPE STRING,
KNUMH TYPE STRING,
WERKS TYPE STRING,
KPOSN TYPE STRING,
VTEXT TYPE STRING,
KOPOS TYPE STRING,
KZBZG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_ME_OA_AGRHEADERCOND_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_TDS_ME_OA_AGRHEADERCOND_STR-MANDT sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-DATAB sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-DATBI sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KBETR sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KOEIN sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KPEIN sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KMEIN sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-STFKZ sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KSTBM sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KONMS sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KSTBW sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KONWS sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KWERT sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-SUPOS sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-FKWRT sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-EUROPRICE sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-PURCHASESCHEDULINGAGREEMENT sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KSCHL sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KNUMH sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-WERKS sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KPOSN sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-VTEXT sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KOPOS sy-vline 
WA_TDS_ME_OA_AGRHEADERCOND_STR-KZBZG sy-vline      INTO ld_text SEPARATED BY SPACE.

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