ABAP Select data from SAP table TDS_ME_OA_AGRHEADER 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_AGRHEADER 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_AGRHEADER. 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_AGRHEADER 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_AGRHEADER TYPE STANDARD TABLE OF TDS_ME_OA_AGRHEADER,
      WA_TDS_ME_OA_AGRHEADER TYPE TDS_ME_OA_AGRHEADER,
      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_AGRHEADER> TYPE TDS_ME_OA_AGRHEADER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_ME_OA_AGRHEADER
*  INTO TABLE @DATA(IT_TDS_ME_OA_AGRHEADER2).
*--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_AGRHEADER INDEX 1 INTO DATA(WA_TDS_ME_OA_AGRHEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_ME_OA_AGRHEADER>-DUMMY_EKKO_INCL_EEW_TR = 1.
<TDS_ME_OA_AGRHEADER>-DUMMY_EKKO_INCL_EEW_PS = 1.
<TDS_ME_OA_AGRHEADER>-MANDT = 1.
<TDS_ME_OA_AGRHEADER>-PURCHASESCHEDULINGAGREEMENT = 1.
<TDS_ME_OA_AGRHEADER>-BEDATTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_ME_OA_AGRHEADER-DRTYP, sy-vline,
  WA_TDS_ME_OA_AGRHEADER-REVNO, sy-vline,
  WA_TDS_ME_OA_AGRHEADER-EKNAM, sy-vline,
  WA_TDS_ME_OA_AGRHEADER-EKTEL, sy-vline,
  WA_TDS_ME_OA_AGRHEADER-UNSEZ, sy-vline,
  WA_TDS_ME_OA_AGRHEADER-STCEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_ME_OA_AGRHEADER 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_AGRHEADER 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_AGRHEADER INTO WA_TDS_ME_OA_AGRHEADER.


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

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

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

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

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ME_OA_AGRHEADER-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ME_OA_AGRHEADER-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field SMPT_ADDR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ME_OA_AGRHEADER-SMPT_ADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ME_OA_AGRHEADER-SMPT_ADDR.
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_AGRHEADER_STR, 
DUMMY_EKKO_INCL_EEW_TR TYPE STRING,
DUMMY_EKKO_INCL_EEW_PS TYPE STRING,
MANDT TYPE STRING,
PURCHASESCHEDULINGAGREEMENT TYPE STRING,
BEDATTXT TYPE STRING,
DRTYP TYPE STRING,
REVNO TYPE STRING,
EKNAM TYPE STRING,
EKTEL TYPE STRING,
UNSEZ TYPE STRING,
STCEG TYPE STRING,
LIFNR TYPE STRING,
ANGNR TYPE STRING,
IHRAN TYPE STRING,
VERKF TYPE STRING,
IHREZ TYPE STRING,
KDATB TYPE STRING,
KDATE TYPE STRING,
ANGDT TYPE STRING,
BNDDT TYPE STRING,
WAERS TYPE STRING,
KTWRT TYPE STRING,
VTEXT TYPE STRING,
BEDAT TYPE STRING,
VENDORADDRESS TYPE STRING,
LANGUAGE TYPE STRING,
SENDERCOUNTRY TYPE STRING,
FAX TYPE STRING,
INCO1 TYPE STRING,
INCO2_L TYPE STRING,
INCO3_L TYPE STRING,
INCOV TYPE STRING,
BEZEI_V TYPE STRING,
BEZEI TYPE STRING,
SMPT_ADDR TYPE STRING,
TEL_NUMBER TYPE STRING,
EKGRP TYPE STRING,
BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_ME_OA_AGRHEADER_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_AGRHEADER_STR-DUMMY_EKKO_INCL_EEW_TR sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-DUMMY_EKKO_INCL_EEW_PS sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-MANDT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-PURCHASESCHEDULINGAGREEMENT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-BEDATTXT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-DRTYP sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-REVNO sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-EKNAM sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-EKTEL sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-UNSEZ sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-STCEG sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-LIFNR sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-ANGNR sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-IHRAN sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-VERKF sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-IHREZ sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-KDATB sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-KDATE sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-ANGDT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-BNDDT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-WAERS sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-KTWRT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-VTEXT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-BEDAT sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-VENDORADDRESS sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-LANGUAGE sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-SENDERCOUNTRY sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-FAX sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-INCO1 sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-INCO2_L sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-INCO3_L sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-INCOV sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-BEZEI_V sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-BEZEI sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-SMPT_ADDR sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-TEL_NUMBER sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-EKGRP sy-vline 
WA_TDS_ME_OA_AGRHEADER_STR-BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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