ABAP Select data from SAP table ECCSDAT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ECCSDAT 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 ECCSDAT. 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 ECCSDAT 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_ECCSDAT TYPE STANDARD TABLE OF ECCSDAT,
      WA_ECCSDAT TYPE ECCSDAT,
      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: <ECCSDAT> TYPE ECCSDAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ECCSDAT
*  INTO TABLE @DATA(IT_ECCSDAT2).
*--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_ECCSDAT INDEX 1 INTO DATA(WA_ECCSDAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ECCSDAT>-RLDNR = 1.
<ECCSDAT>-RVERS = 1.
<ECCSDAT>-RYEAR = 1.
<ECCSDAT>-RTCUR = 1.
<ECCSDAT>-RUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ECCSDAT-PERID, sy-vline,
  WA_ECCSDAT-RDIMEN, sy-vline,
  WA_ECCSDAT-RCONGR, sy-vline,
  WA_ECCSDAT-RBUNIT, sy-vline,
  WA_ECCSDAT-RITCLG, sy-vline,
  WA_ECCSDAT-RITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ECCSDAT 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_ECCSDAT 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_ECCSDAT INTO WA_ECCSDAT.


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

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

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-RYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AFIMC, internal->external for field RCONGR
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-RCONGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-RCONGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AFIMC, internal->external for field RBUNIT
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-RBUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-RBUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BFIMC, internal->external for field RITEM
CALL FUNCTION 'CONVERSION_EXIT_BFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-RITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-RITEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AFIMC, internal->external for field RBUPTR
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-RBUPTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-RBUPTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field YRACQ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-YRACQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-YRACQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TSLYD
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-TSLYD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-TSLYD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field HSLYD
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-HSLYD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-HSLYD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field KSLYD
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-KSLYD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-KSLYD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TSLPD
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-TSLPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-TSLPD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field HSLPD
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-HSLPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-HSLPD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field KSLPD
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-KSLPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-KSLPD.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field COICU__PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ECCSDAT-COICU__PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECCSDAT-COICU__PRCTR.
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_ECCSDAT_STR, 
RLDNR TYPE STRING,
RVERS TYPE STRING,
RYEAR TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
PERID TYPE STRING,
RDIMEN TYPE STRING,
RCONGR TYPE STRING,
RBUNIT TYPE STRING,
RITCLG TYPE STRING,
RITEM TYPE STRING,
SITYP TYPE STRING,
SUBIT TYPE STRING,
RBUPTR TYPE STRING,
YRACQ TYPE STRING,
PRACQ TYPE STRING,
TSLYD TYPE STRING,
HSLYD TYPE STRING,
KSLYD TYPE STRING,
MSLYD TYPE STRING,
TSLPD TYPE STRING,
HSLPD TYPE STRING,
KSLPD TYPE STRING,
MSLPD TYPE STRING,
RBUNIT__CNTRY TYPE STRING,
RBUNIT__RCOMP TYPE STRING,
RBUNIT__GSBER_KONS TYPE STRING,
RBUNIT__KOKRS TYPE STRING,
RBUNIT__PRCTR TYPE STRING,
RBUPTR__CNTRY TYPE STRING,
RBUPTR__RCOMP TYPE STRING,
RBUPTR__GSBER_KONS TYPE STRING,
RBUPTR__KOKRS TYPE STRING,
RBUPTR__PRCTR TYPE STRING,
COICU__CNTRY TYPE STRING,
COICU__RCOMP TYPE STRING,
COICU__GSBER_KONS TYPE STRING,
COICU__KOKRS TYPE STRING,
COICU__PRCTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ECCSDAT_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_ECCSDAT_STR-RLDNR sy-vline 
WA_ECCSDAT_STR-RVERS sy-vline 
WA_ECCSDAT_STR-RYEAR sy-vline 
WA_ECCSDAT_STR-RTCUR sy-vline 
WA_ECCSDAT_STR-RUNIT sy-vline 
WA_ECCSDAT_STR-PERID sy-vline 
WA_ECCSDAT_STR-RDIMEN sy-vline 
WA_ECCSDAT_STR-RCONGR sy-vline 
WA_ECCSDAT_STR-RBUNIT sy-vline 
WA_ECCSDAT_STR-RITCLG sy-vline 
WA_ECCSDAT_STR-RITEM sy-vline 
WA_ECCSDAT_STR-SITYP sy-vline 
WA_ECCSDAT_STR-SUBIT sy-vline 
WA_ECCSDAT_STR-RBUPTR sy-vline 
WA_ECCSDAT_STR-YRACQ sy-vline 
WA_ECCSDAT_STR-PRACQ sy-vline 
WA_ECCSDAT_STR-TSLYD sy-vline 
WA_ECCSDAT_STR-HSLYD sy-vline 
WA_ECCSDAT_STR-KSLYD sy-vline 
WA_ECCSDAT_STR-MSLYD sy-vline 
WA_ECCSDAT_STR-TSLPD sy-vline 
WA_ECCSDAT_STR-HSLPD sy-vline 
WA_ECCSDAT_STR-KSLPD sy-vline 
WA_ECCSDAT_STR-MSLPD sy-vline 
WA_ECCSDAT_STR-RBUNIT__CNTRY sy-vline 
WA_ECCSDAT_STR-RBUNIT__RCOMP sy-vline 
WA_ECCSDAT_STR-RBUNIT__GSBER_KONS sy-vline 
WA_ECCSDAT_STR-RBUNIT__KOKRS sy-vline 
WA_ECCSDAT_STR-RBUNIT__PRCTR sy-vline 
WA_ECCSDAT_STR-RBUPTR__CNTRY sy-vline 
WA_ECCSDAT_STR-RBUPTR__RCOMP sy-vline 
WA_ECCSDAT_STR-RBUPTR__GSBER_KONS sy-vline 
WA_ECCSDAT_STR-RBUPTR__KOKRS sy-vline 
WA_ECCSDAT_STR-RBUPTR__PRCTR sy-vline 
WA_ECCSDAT_STR-COICU__CNTRY sy-vline 
WA_ECCSDAT_STR-COICU__RCOMP sy-vline 
WA_ECCSDAT_STR-COICU__GSBER_KONS sy-vline 
WA_ECCSDAT_STR-COICU__KOKRS sy-vline 
WA_ECCSDAT_STR-COICU__PRCTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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