ABAP Select data from SAP table /ACCGO/INV_S_TRU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/INV_S_TRU
*  INTO TABLE @DATA(IT_/ACCGO/INV_S_TRU2).
*--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_/ACCGO/INV_S_TRU INDEX 1 INTO DATA(WA_/ACCGO/INV_S_TRU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/INV_S_TRU>-PLANT = 1.
</ACCGO/INV_S_TRU>-MATERIAL = 1.
</ACCGO/INV_S_TRU>-STLOC = 1.
</ACCGO/INV_S_TRU>-INV_BUCKET = 1.
</ACCGO/INV_S_TRU>-RUN_TIMESTAMP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/INV_S_TRU-PROC_ID, sy-vline,
  WA_/ACCGO/INV_S_TRU-REF_MSG_ID, sy-vline,
  WA_/ACCGO/INV_S_TRU-COMM_TYPE, sy-vline,
  WA_/ACCGO/INV_S_TRU-CSL_LGORT, sy-vline,
  WA_/ACCGO/INV_S_TRU-PRCTR, sy-vline,
  WA_/ACCGO/INV_S_TRU-BOD_TRUEUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/INV_S_TRU 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_/ACCGO/INV_S_TRU 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_/ACCGO/INV_S_TRU INTO WA_/ACCGO/INV_S_TRU.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/INV_S_TRU-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/INV_S_TRU-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit TSTLC, internal->external for field TRUEUP_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/INV_S_TRU-TRUEUP_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/INV_S_TRU-TRUEUP_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field BOM_ID
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/INV_S_TRU-BOM_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/INV_S_TRU-BOM_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/INV_S_TRU-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/INV_S_TRU-CREATED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/INV_S_TRU-CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/INV_S_TRU-CHANGED_ON.
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_/ACCGO/INV_S_TRU_STR, 
PLANT TYPE STRING,
MATERIAL TYPE STRING,
STLOC TYPE STRING,
INV_BUCKET TYPE STRING,
RUN_TIMESTAMP TYPE STRING,
PROC_ID TYPE STRING,
REF_MSG_ID TYPE STRING,
COMM_TYPE TYPE STRING,
CSL_LGORT TYPE STRING,
PRCTR TYPE STRING,
BOD_TRUEUP TYPE STRING,
UNR_QTY TYPE STRING,
R_UNR_QTY TYPE STRING,
CONS_QTY TYPE STRING,
VEND_QTY TYPE STRING,
ORD_ON_HND_QTY TYPE STRING,
STCK_IN_TR_QTY TYPE STRING,
IN_QLTY_INS_QTY TYPE STRING,
REST_USE_QTY TYPE STRING,
BLOCKED_QTY TYPE STRING,
BLKD_RET_QTY TYPE STRING,
UNA_FAD_QTY TYPE STRING,
R_UNA_FAD_QTY TYPE STRING,
OAD_QTY TYPE STRING,
R_OAD_QTY TYPE STRING,
UNA_RAD_QTY TYPE STRING,
R_UNA_RAD_QTY TYPE STRING,
PO_QTY TYPE STRING,
R_PO_QTY TYPE STRING,
TRD_BEF_QTY TYPE STRING,
R_TRD_BEF_QTY TYPE STRING,
TRD_AFT_QTY TYPE STRING,
R_TRD_AFT_QTY TYPE STRING,
INV_QTY TYPE STRING,
R_INV_QTY TYPE STRING,
PRV_INV_QTY TYPE STRING,
R_PRV_INV_QTY TYPE STRING,
BASE_UOM TYPE STRING,
BATCH_UOM TYPE STRING,
REF_MATERIAL TYPE STRING,
INTRANSIT_FLAG TYPE STRING,
STOCK_TIMESTAMP TYPE STRING,
TRUEUP_DATE TYPE STRING,
DB_CSL_FLG TYPE STRING,
TRD_INV_QTY TYPE STRING,
R_TRD_INV_QTY TYPE STRING,
ADJ_QTY TYPE STRING,
R_ADJ_QTY TYPE STRING,
BOM_ID TYPE STRING,
BOM_TYPE TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
UPDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/INV_S_TRU_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_/ACCGO/INV_S_TRU_STR-PLANT sy-vline 
WA_/ACCGO/INV_S_TRU_STR-MATERIAL sy-vline 
WA_/ACCGO/INV_S_TRU_STR-STLOC sy-vline 
WA_/ACCGO/INV_S_TRU_STR-INV_BUCKET sy-vline 
WA_/ACCGO/INV_S_TRU_STR-RUN_TIMESTAMP sy-vline 
WA_/ACCGO/INV_S_TRU_STR-PROC_ID sy-vline 
WA_/ACCGO/INV_S_TRU_STR-REF_MSG_ID sy-vline 
WA_/ACCGO/INV_S_TRU_STR-COMM_TYPE sy-vline 
WA_/ACCGO/INV_S_TRU_STR-CSL_LGORT sy-vline 
WA_/ACCGO/INV_S_TRU_STR-PRCTR sy-vline 
WA_/ACCGO/INV_S_TRU_STR-BOD_TRUEUP sy-vline 
WA_/ACCGO/INV_S_TRU_STR-UNR_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_UNR_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-CONS_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-VEND_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-ORD_ON_HND_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-STCK_IN_TR_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-IN_QLTY_INS_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-REST_USE_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-BLOCKED_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-BLKD_RET_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-UNA_FAD_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_UNA_FAD_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-OAD_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_OAD_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-UNA_RAD_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_UNA_RAD_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-PO_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_PO_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-TRD_BEF_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_TRD_BEF_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-TRD_AFT_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_TRD_AFT_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-INV_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_INV_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-PRV_INV_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_PRV_INV_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-BASE_UOM sy-vline 
WA_/ACCGO/INV_S_TRU_STR-BATCH_UOM sy-vline 
WA_/ACCGO/INV_S_TRU_STR-REF_MATERIAL sy-vline 
WA_/ACCGO/INV_S_TRU_STR-INTRANSIT_FLAG sy-vline 
WA_/ACCGO/INV_S_TRU_STR-STOCK_TIMESTAMP sy-vline 
WA_/ACCGO/INV_S_TRU_STR-TRUEUP_DATE sy-vline 
WA_/ACCGO/INV_S_TRU_STR-DB_CSL_FLG sy-vline 
WA_/ACCGO/INV_S_TRU_STR-TRD_INV_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_TRD_INV_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-ADJ_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-R_ADJ_QTY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-BOM_ID sy-vline 
WA_/ACCGO/INV_S_TRU_STR-BOM_TYPE sy-vline 
WA_/ACCGO/INV_S_TRU_STR-CREATED_BY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-CREATED_ON sy-vline 
WA_/ACCGO/INV_S_TRU_STR-CHANGED_BY sy-vline 
WA_/ACCGO/INV_S_TRU_STR-CHANGED_ON sy-vline 
WA_/ACCGO/INV_S_TRU_STR-UPDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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