ABAP Select data from SAP table /IAM/S_ISS_PRIN_DEF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IAM/S_ISS_PRIN_DEF
*  INTO TABLE @DATA(IT_/IAM/S_ISS_PRIN_DEF2).
*--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_/IAM/S_ISS_PRIN_DEF INDEX 1 INTO DATA(WA_/IAM/S_ISS_PRIN_DEF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IAM/S_ISS_PRIN_DEF>-HEAD = 1.
</IAM/S_ISS_PRIN_DEF>-ID = 1.
</IAM/S_ISS_PRIN_DEF>-TYPE_DESCR = 1.
</IAM/S_ISS_PRIN_DEF>-REPORTED_BY = 1.
</IAM/S_ISS_PRIN_DEF>-RESPONSIBLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IAM/S_ISS_PRIN_DEF-RESPONSIBLE_TXT, sy-vline,
  WA_/IAM/S_ISS_PRIN_DEF-DESCR, sy-vline,
  WA_/IAM/S_ISS_PRIN_DEF-DESC_LONG, sy-vline,
  WA_/IAM/S_ISS_PRIN_DEF-DESC_LONG_FORMATTED, sy-vline,
  WA_/IAM/S_ISS_PRIN_DEF-STATUS, sy-vline,
  WA_/IAM/S_ISS_PRIN_DEF-CODE_GRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IAM/S_ISS_PRIN_DEF 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_/IAM/S_ISS_PRIN_DEF 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_/IAM/S_ISS_PRIN_DEF INTO WA_/IAM/S_ISS_PRIN_DEF.


*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 ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/S_ISS_PRIN_DEF-ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/S_ISS_PRIN_DEF-ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field MAIN_OBJ_SRC_SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/S_ISS_PRIN_DEF-MAIN_OBJ_SRC_SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/S_ISS_PRIN_DEF-MAIN_OBJ_SRC_SYSTEM.
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_/IAM/S_ISS_PRIN_DEF_STR, 
HEAD TYPE STRING,
ID TYPE STRING,
TYPE_DESCR TYPE STRING,
REPORTED_BY TYPE STRING,
RESPONSIBLE TYPE STRING,
RESPONSIBLE_TXT TYPE STRING,
DESCR TYPE STRING,
DESC_LONG TYPE STRING,
DESC_LONG_FORMATTED TYPE STRING,
STATUS TYPE STRING,
CODE_GRP TYPE STRING,
CODE_GRP_TXT TYPE STRING,
CODE TYPE STRING,
CODE_TXT TYPE STRING,
PRIORITY_DESCR TYPE STRING,
CRITICALITY_DESCR TYPE STRING,
REQ_START_DAT TYPE STRING,
REQ_START_TIM TYPE STRING,
REQ_START_UNIT TYPE STRING,
REQ_END_DAT TYPE STRING,
REQ_END_TIM TYPE STRING,
REQ_END_UNIT TYPE STRING,
AUTH_GROUP TYPE STRING,
AUTH_GRP_DESCR TYPE STRING,
PRINTED_BY TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_BY TYPE STRING,
PRINTED_DATE TYPE STRING,
DEF_CODE_GRP TYPE STRING,
DEF_CODE_GRP_TXT TYPE STRING,
DEF_CODE TYPE STRING,
DEF_CODE_TXT TYPE STRING,
LOC_CODE_GRP TYPE STRING,
LOC_CODE_GRP_TXT TYPE STRING,
LOC_CODE TYPE STRING,
LOC_CODE_TXT TYPE STRING,
LOC_DESCR TYPE STRING,
LOC_DESCR_LONG TYPE STRING,
LOC_DESCR_LONG_FORMATTED TYPE STRING,
RES_CODE_GRP TYPE STRING,
RES_CODE_GRP_TXT TYPE STRING,
RES_CODE TYPE STRING,
RES_CODE_TXT TYPE STRING,
RES_DESCR TYPE STRING,
RES_DESCR_LONG TYPE STRING,
RES_DESCR_LONG_FORMATTED TYPE STRING,
OCC_QUANT TYPE STRING,
INT_QUANT TYPE STRING,
EXT_QUANT TYPE STRING,
DETECTION_DATE TYPE STRING,
DETECTION_TIME TYPE STRING,
DETECTION_UNIT TYPE STRING,
MAL_START_DATE TYPE STRING,
MAL_START_TIME TYPE STRING,
MAL_START_UNIT TYPE STRING,
MAL_END_DATE TYPE STRING,
MAL_END_TIME TYPE STRING,
MAL_END_UNIT TYPE STRING,
COUNTRY TYPE STRING,
DESCR_HISTORY TYPE STRING,
OREF TYPE STRING,
MAIN_OBJ_LBL TYPE STRING,
MAIN_OBJ TYPE STRING,
MAIN_OBJ_TXT TYPE STRING,
MAIN_OBJ_SRC_SYSTEM TYPE STRING,
OBJ_T TYPE STRING,
QUAN_REF TYPE STRING,
QUAN_COM TYPE STRING,
QUAN_ACK TYPE STRING,
QUAN_RET TYPE STRING,
QUAN_OCC TYPE STRING,
QUAN_INT TYPE STRING,
QUAN_EXT TYPE STRING,
RDL_DATE TYPE STRING,
BUPA TYPE STRING,
ACT TYPE STRING,
ATT TYPE STRING,
CAUSE TYPE STRING,
EFFECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IAM/S_ISS_PRIN_DEF_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_/IAM/S_ISS_PRIN_DEF_STR-HEAD sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-ID sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-TYPE_DESCR sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-REPORTED_BY sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RESPONSIBLE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RESPONSIBLE_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DESCR sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DESC_LONG sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DESC_LONG_FORMATTED sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-STATUS sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CODE_GRP sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CODE_GRP_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CODE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CODE_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-PRIORITY_DESCR sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CRITICALITY_DESCR sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-REQ_START_DAT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-REQ_START_TIM sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-REQ_START_UNIT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-REQ_END_DAT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-REQ_END_TIM sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-REQ_END_UNIT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-AUTH_GROUP sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-AUTH_GRP_DESCR sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-PRINTED_BY sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CREATED_BY sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CHANGED_BY sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-PRINTED_DATE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DEF_CODE_GRP sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DEF_CODE_GRP_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DEF_CODE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DEF_CODE_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-LOC_CODE_GRP sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-LOC_CODE_GRP_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-LOC_CODE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-LOC_CODE_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-LOC_DESCR sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-LOC_DESCR_LONG sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-LOC_DESCR_LONG_FORMATTED sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RES_CODE_GRP sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RES_CODE_GRP_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RES_CODE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RES_CODE_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RES_DESCR sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RES_DESCR_LONG sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RES_DESCR_LONG_FORMATTED sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-OCC_QUANT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-INT_QUANT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-EXT_QUANT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DETECTION_DATE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DETECTION_TIME sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DETECTION_UNIT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAL_START_DATE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAL_START_TIME sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAL_START_UNIT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAL_END_DATE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAL_END_TIME sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAL_END_UNIT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-COUNTRY sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-DESCR_HISTORY sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-OREF sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAIN_OBJ_LBL sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAIN_OBJ sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAIN_OBJ_TXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-MAIN_OBJ_SRC_SYSTEM sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-OBJ_T sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-QUAN_REF sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-QUAN_COM sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-QUAN_ACK sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-QUAN_RET sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-QUAN_OCC sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-QUAN_INT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-QUAN_EXT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-RDL_DATE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-BUPA sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-ACT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-ATT sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-CAUSE sy-vline 
WA_/IAM/S_ISS_PRIN_DEF_STR-EFFECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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