ABAP Select data from SAP table /PRA/R6_INTSTG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PRA/R6_INTSTG 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 /PRA/R6_INTSTG. 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 /PRA/R6_INTSTG 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_/PRA/R6_INTSTG TYPE STANDARD TABLE OF /PRA/R6_INTSTG,
      WA_/PRA/R6_INTSTG TYPE /PRA/R6_INTSTG,
      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: </PRA/R6_INTSTG> TYPE /PRA/R6_INTSTG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PRA/R6_INTSTG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PRA/R6_INTSTG
  INTO TABLE IT_/PRA/R6_INTSTG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/R6_INTSTG
*  INTO TABLE @DATA(IT_/PRA/R6_INTSTG2).
*--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_/PRA/R6_INTSTG INDEX 1 INTO DATA(WA_/PRA/R6_INTSTG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PRA/R6_INTSTG ASSIGNING </PRA/R6_INTSTG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PRA/R6_INTSTG>-MANDT = 1.
</PRA/R6_INTSTG>-GUID = 1.
</PRA/R6_INTSTG>-ACCT_PERIOD = 1.
</PRA/R6_INTSTG>-ACCT_DOC_NO = 1.
</PRA/R6_INTSTG>-LINE_NO = 1.

ENDLOOP.

LOOP AT IT_/PRA/R6_INTSTG INTO WA_/PRA/R6_INTSTG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/R6_INTSTG-BUKRS, sy-vline,
  WA_/PRA/R6_INTSTG-SALES_DT, sy-vline,
  WA_/PRA/R6_INTSTG-PDCD, sy-vline,
  WA_/PRA/R6_INTSTG-WL_NO, sy-vline,
  WA_/PRA/R6_INTSTG-WC_NO, sy-vline,
  WA_/PRA/R6_INTSTG-MP_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/R6_INTSTG 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_/PRA/R6_INTSTG 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_/PRA/R6_INTSTG INTO WA_/PRA/R6_INTSTG.


*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 OIUMY, internal->external for field ACCT_PERIOD
CALL FUNCTION 'CONVERSION_EXIT_OIUMY_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-ACCT_PERIOD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-ACCT_PERIOD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCT_DOC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-ACCT_DOC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-ACCT_DOC_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WL_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-WL_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-WL_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-WC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-WC_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MP_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-MP_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-MP_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOI_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-DOI_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-DOI_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DN_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-DN_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-DN_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CT_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-CT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-CT_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UNIT_VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-UNIT_VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-UNIT_VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-DOC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-DOC_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field DOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/R6_INTSTG-DOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/R6_INTSTG-DOC_YEAR.
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_/PRA/R6_INTSTG_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
ACCT_PERIOD TYPE STRING,
ACCT_DOC_NO TYPE STRING,
LINE_NO TYPE STRING,
BUKRS TYPE STRING,
SALES_DT TYPE STRING,
PDCD TYPE STRING,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
MP_NO TYPE STRING,
VNAME TYPE STRING,
DOI_NO TYPE STRING,
DN_NO TYPE STRING,
CT_NO TYPE STRING,
VL_TYPE_CD TYPE STRING,
OWNER_IDENTIFIER TYPE STRING,
UNIT_VNAME TYPE STRING,
ACCT_NO TYPE STRING,
UOM TYPE STRING,
GR_QY TYPE STRING,
GR_AM TYPE STRING,
DED_RMB_AM TYPE STRING,
TAX_RMB_AM TYPE STRING,
NET_TRANSP_AM TYPE STRING,
NET_OTH_MK_AM TYPE STRING,
MKT_COST_01 TYPE STRING,
MKT_COST_02 TYPE STRING,
MKT_COST_03 TYPE STRING,
MKT_COST_04 TYPE STRING,
MKT_COST_05 TYPE STRING,
MKT_COST_06 TYPE STRING,
MKT_COST_07 TYPE STRING,
MKT_COST_08 TYPE STRING,
MKT_COST_09 TYPE STRING,
MKT_COST_10 TYPE STRING,
TXN_VAL_AM TYPE STRING,
OWN_INT_DECM_QY TYPE STRING,
TRANS_AM TYPE STRING,
TRANS_QY TYPE STRING,
BTU_QY TYPE STRING,
PS_BASE_QY TYPE STRING,
GRV_QY TYPE STRING,
PAY_CD TYPE STRING,
OWN_BAL_DECM_QY TYPE STRING,
MMBTU_OVL_AM TYPE STRING,
OPERATED_FL TYPE STRING,
OPERATOR_NAME TYPE STRING,
STATE_LEASE_NO TYPE STRING,
UNIQUE_ID TYPE STRING,
REPORT_ONLY TYPE STRING,
OVERRIDE_FL TYPE STRING,
TRACT_ALLOC_LSE TYPE STRING,
ROYALTY_RATE TYPE STRING,
ALLOC_PERCENT TYPE STRING,
REFERENCE_FIELD TYPE STRING,
ALTERNATE_PSA TYPE STRING,
CTRACT_ALLOC_LSE TYPE STRING,
MASTER_LEVEL TYPE STRING,
WY_PDCD TYPE STRING,
PAYER_CODE TYPE STRING,
ORIGINAL_REPORT TYPE STRING,
DOC_NO TYPE STRING,
DOC_YEAR TYPE STRING,
INTERFACE_FL TYPE STRING,
OPTION1 TYPE STRING,
OPTION2 TYPE STRING,
OPTION3 TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/R6_INTSTG_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_/PRA/R6_INTSTG_STR-MANDT sy-vline 
WA_/PRA/R6_INTSTG_STR-GUID sy-vline 
WA_/PRA/R6_INTSTG_STR-ACCT_PERIOD sy-vline 
WA_/PRA/R6_INTSTG_STR-ACCT_DOC_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-LINE_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-BUKRS sy-vline 
WA_/PRA/R6_INTSTG_STR-SALES_DT sy-vline 
WA_/PRA/R6_INTSTG_STR-PDCD sy-vline 
WA_/PRA/R6_INTSTG_STR-WL_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-WC_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-MP_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-VNAME sy-vline 
WA_/PRA/R6_INTSTG_STR-DOI_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-DN_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-CT_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-VL_TYPE_CD sy-vline 
WA_/PRA/R6_INTSTG_STR-OWNER_IDENTIFIER sy-vline 
WA_/PRA/R6_INTSTG_STR-UNIT_VNAME sy-vline 
WA_/PRA/R6_INTSTG_STR-ACCT_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-UOM sy-vline 
WA_/PRA/R6_INTSTG_STR-GR_QY sy-vline 
WA_/PRA/R6_INTSTG_STR-GR_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-DED_RMB_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-TAX_RMB_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-NET_TRANSP_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-NET_OTH_MK_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_01 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_02 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_03 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_04 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_05 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_06 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_07 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_08 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_09 sy-vline 
WA_/PRA/R6_INTSTG_STR-MKT_COST_10 sy-vline 
WA_/PRA/R6_INTSTG_STR-TXN_VAL_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-OWN_INT_DECM_QY sy-vline 
WA_/PRA/R6_INTSTG_STR-TRANS_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-TRANS_QY sy-vline 
WA_/PRA/R6_INTSTG_STR-BTU_QY sy-vline 
WA_/PRA/R6_INTSTG_STR-PS_BASE_QY sy-vline 
WA_/PRA/R6_INTSTG_STR-GRV_QY sy-vline 
WA_/PRA/R6_INTSTG_STR-PAY_CD sy-vline 
WA_/PRA/R6_INTSTG_STR-OWN_BAL_DECM_QY sy-vline 
WA_/PRA/R6_INTSTG_STR-MMBTU_OVL_AM sy-vline 
WA_/PRA/R6_INTSTG_STR-OPERATED_FL sy-vline 
WA_/PRA/R6_INTSTG_STR-OPERATOR_NAME sy-vline 
WA_/PRA/R6_INTSTG_STR-STATE_LEASE_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-UNIQUE_ID sy-vline 
WA_/PRA/R6_INTSTG_STR-REPORT_ONLY sy-vline 
WA_/PRA/R6_INTSTG_STR-OVERRIDE_FL sy-vline 
WA_/PRA/R6_INTSTG_STR-TRACT_ALLOC_LSE sy-vline 
WA_/PRA/R6_INTSTG_STR-ROYALTY_RATE sy-vline 
WA_/PRA/R6_INTSTG_STR-ALLOC_PERCENT sy-vline 
WA_/PRA/R6_INTSTG_STR-REFERENCE_FIELD sy-vline 
WA_/PRA/R6_INTSTG_STR-ALTERNATE_PSA sy-vline 
WA_/PRA/R6_INTSTG_STR-CTRACT_ALLOC_LSE sy-vline 
WA_/PRA/R6_INTSTG_STR-MASTER_LEVEL sy-vline 
WA_/PRA/R6_INTSTG_STR-WY_PDCD sy-vline 
WA_/PRA/R6_INTSTG_STR-PAYER_CODE sy-vline 
WA_/PRA/R6_INTSTG_STR-ORIGINAL_REPORT sy-vline 
WA_/PRA/R6_INTSTG_STR-DOC_NO sy-vline 
WA_/PRA/R6_INTSTG_STR-DOC_YEAR sy-vline 
WA_/PRA/R6_INTSTG_STR-INTERFACE_FL sy-vline 
WA_/PRA/R6_INTSTG_STR-OPTION1 sy-vline 
WA_/PRA/R6_INTSTG_STR-OPTION2 sy-vline 
WA_/PRA/R6_INTSTG_STR-OPTION3 sy-vline 
WA_/PRA/R6_INTSTG_STR-OIU_CRUSER sy-vline 
WA_/PRA/R6_INTSTG_STR-OIU_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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