ABAP Select data from SAP table /CBAD/CONTRACT_I_U into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /CBAD/CONTRACT_I_U 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 /CBAD/CONTRACT_I_U. 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 /CBAD/CONTRACT_I_U 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_/CBAD/CONTRACT_I_U TYPE STANDARD TABLE OF /CBAD/CONTRACT_I_U,
      WA_/CBAD/CONTRACT_I_U TYPE /CBAD/CONTRACT_I_U,
      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: </CBAD/CONTRACT_I_U> TYPE /CBAD/CONTRACT_I_U.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /CBAD/CONTRACT_I_U
  INTO TABLE IT_/CBAD/CONTRACT_I_U.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CBAD/CONTRACT_I_U
*  INTO TABLE @DATA(IT_/CBAD/CONTRACT_I_U2).
*--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_/CBAD/CONTRACT_I_U INDEX 1 INTO DATA(WA_/CBAD/CONTRACT_I_U2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CBAD/CONTRACT_I_U ASSIGNING </CBAD/CONTRACT_I_U>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CBAD/CONTRACT_I_U>-MANDT = 1.
</CBAD/CONTRACT_I_U>-CVBELN = 1.
</CBAD/CONTRACT_I_U>-CPOSNR = 1.
</CBAD/CONTRACT_I_U>-VER_NO = 1.
</CBAD/CONTRACT_I_U>-POS_TYPE = 1.

ENDLOOP.

LOOP AT IT_/CBAD/CONTRACT_I_U INTO WA_/CBAD/CONTRACT_I_U.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CBAD/CONTRACT_I_U-DEL_FLAG, sy-vline,
  WA_/CBAD/CONTRACT_I_U-POSNR, sy-vline,
  WA_/CBAD/CONTRACT_I_U-PAR_CPOSNR, sy-vline,
  WA_/CBAD/CONTRACT_I_U-EFF_DATE, sy-vline,
  WA_/CBAD/CONTRACT_I_U-BILL_TYP, sy-vline,
  WA_/CBAD/CONTRACT_I_U-NOPAC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CBAD/CONTRACT_I_U 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_/CBAD/CONTRACT_I_U 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_/CBAD/CONTRACT_I_U INTO WA_/CBAD/CONTRACT_I_U.


*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 CVBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/CBAD/CONTRACT_I_U-CVBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CBAD/CONTRACT_I_U-CVBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field USR05
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/CBAD/CONTRACT_I_U-USR05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CBAD/CONTRACT_I_U-USR05.
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_/CBAD/CONTRACT_I_U_STR, 
MANDT TYPE STRING,
CVBELN TYPE STRING,
CPOSNR TYPE STRING,
VER_NO TYPE STRING,
POS_TYPE TYPE STRING,
DEL_FLAG TYPE STRING,
POSNR TYPE STRING,
PAR_CPOSNR TYPE STRING,
EFF_DATE TYPE STRING,
BILL_TYP TYPE STRING,
NOPAC TYPE STRING,
FUN_SOU TYPE STRING,
REQ_DEF_DATE TYPE STRING,
DEF_DATE TYPE STRING,
DEF_MOD_NO TYPE STRING,
PER_ST_DATE TYPE STRING,
PER_END_DATE TYPE STRING,
DESCR TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
USR01 TYPE STRING,
USR02 TYPE STRING,
USR03 TYPE STRING,
USR04 TYPE STRING,
USR05 TYPE STRING,
USR06 TYPE STRING,
USR07 TYPE STRING,
UPDKZ TYPE STRING,
USER_POSNR TYPE STRING,
MOD_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CBAD/CONTRACT_I_U_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_/CBAD/CONTRACT_I_U_STR-MANDT sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-CVBELN sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-CPOSNR sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-VER_NO sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-POS_TYPE sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-DEL_FLAG sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-POSNR sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-PAR_CPOSNR sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-EFF_DATE sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-BILL_TYP sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-NOPAC sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-FUN_SOU sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-REQ_DEF_DATE sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-DEF_DATE sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-DEF_MOD_NO sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-PER_ST_DATE sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-PER_END_DATE sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-DESCR sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-ERNAM sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-ERDAT sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-AENAM sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-AEDAT sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USR01 sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USR02 sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USR03 sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USR04 sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USR05 sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USR06 sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USR07 sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-UPDKZ sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-USER_POSNR sy-vline 
WA_/CBAD/CONTRACT_I_U_STR-MOD_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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