ABAP Select data from SAP table EEWA_TCRB_P into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EEWA_TCRB_P
*  INTO TABLE @DATA(IT_EEWA_TCRB_P2).
*--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_EEWA_TCRB_P INDEX 1 INTO DATA(WA_EEWA_TCRB_P2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EEWA_TCRB_P>-MANDT = 1.
<EEWA_TCRB_P>-VBELN = 1.
<EEWA_TCRB_P>-POSNR = 1.
<EEWA_TCRB_P>-SERVLOC = 1.
<EEWA_TCRB_P>-BEH_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EEWA_TCRB_P-LOGINSTNR_TYP, sy-vline,
  WA_EEWA_TCRB_P-LOGINSTNR, sy-vline,
  WA_EEWA_TCRB_P-SUBSEQU_DOC, sy-vline,
  WA_EEWA_TCRB_P-LOG_ID, sy-vline,
  WA_EEWA_TCRB_P-LASTFROM, sy-vline,
  WA_EEWA_TCRB_P-LASTTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EEWA_TCRB_P 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_EEWA_TCRB_P 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_EEWA_TCRB_P INTO WA_EEWA_TCRB_P.


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

*Conversion exit TPLNR, internal->external for field SERVLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EEWA_TCRB_P-SERVLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EEWA_TCRB_P-SERVLOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BEH_TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EEWA_TCRB_P-BEH_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EEWA_TCRB_P-BEH_TYPE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EEWA_TCRB_P-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EEWA_TCRB_P-EQUNR.
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_EEWA_TCRB_P_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
SERVLOC TYPE STRING,
BEH_TYPE TYPE STRING,
LOGINSTNR_TYP TYPE STRING,
LOGINSTNR TYPE STRING,
SUBSEQU_DOC TYPE STRING,
LOG_ID TYPE STRING,
LASTFROM TYPE STRING,
LASTTO TYPE STRING,
ZMENG TYPE STRING,
ZMENG_DAY TYPE STRING,
ZMENG_RF TYPE STRING,
ZMENG_RF_FIRST TYPE STRING,
ZIEME TYPE STRING,
ZIEME_DAY TYPE STRING,
CONT_COUNT TYPE STRING,
YEARMONTH_BEG TYPE STRING,
NUMBER_EMPTIES TYPE STRING,
NUMBER_EMPTIES_ZB TYPE STRING,
KUNNR TYPE STRING,
EQUNR TYPE STRING,
IS_PROCESS TYPE STRING,
IS_PROCESS_TEXT TYPE STRING,
CID TYPE STRING,
CID_COUNTER TYPE STRING,
CID_COUNT_ALL TYPE STRING,
STORNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EEWA_TCRB_P_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_EEWA_TCRB_P_STR-MANDT sy-vline 
WA_EEWA_TCRB_P_STR-VBELN sy-vline 
WA_EEWA_TCRB_P_STR-POSNR sy-vline 
WA_EEWA_TCRB_P_STR-SERVLOC sy-vline 
WA_EEWA_TCRB_P_STR-BEH_TYPE sy-vline 
WA_EEWA_TCRB_P_STR-LOGINSTNR_TYP sy-vline 
WA_EEWA_TCRB_P_STR-LOGINSTNR sy-vline 
WA_EEWA_TCRB_P_STR-SUBSEQU_DOC sy-vline 
WA_EEWA_TCRB_P_STR-LOG_ID sy-vline 
WA_EEWA_TCRB_P_STR-LASTFROM sy-vline 
WA_EEWA_TCRB_P_STR-LASTTO sy-vline 
WA_EEWA_TCRB_P_STR-ZMENG sy-vline 
WA_EEWA_TCRB_P_STR-ZMENG_DAY sy-vline 
WA_EEWA_TCRB_P_STR-ZMENG_RF sy-vline 
WA_EEWA_TCRB_P_STR-ZMENG_RF_FIRST sy-vline 
WA_EEWA_TCRB_P_STR-ZIEME sy-vline 
WA_EEWA_TCRB_P_STR-ZIEME_DAY sy-vline 
WA_EEWA_TCRB_P_STR-CONT_COUNT sy-vline 
WA_EEWA_TCRB_P_STR-YEARMONTH_BEG sy-vline 
WA_EEWA_TCRB_P_STR-NUMBER_EMPTIES sy-vline 
WA_EEWA_TCRB_P_STR-NUMBER_EMPTIES_ZB sy-vline 
WA_EEWA_TCRB_P_STR-KUNNR sy-vline 
WA_EEWA_TCRB_P_STR-EQUNR sy-vline 
WA_EEWA_TCRB_P_STR-IS_PROCESS sy-vline 
WA_EEWA_TCRB_P_STR-IS_PROCESS_TEXT sy-vline 
WA_EEWA_TCRB_P_STR-CID sy-vline 
WA_EEWA_TCRB_P_STR-CID_COUNTER sy-vline 
WA_EEWA_TCRB_P_STR-CID_COUNT_ALL sy-vline 
WA_EEWA_TCRB_P_STR-STORNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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