ABAP Select data from SAP table GRPC_S_TRANS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPC_S_TRANS
*  INTO TABLE @DATA(IT_GRPC_S_TRANS2).
*--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_GRPC_S_TRANS INDEX 1 INTO DATA(WA_GRPC_S_TRANS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPC_S_TRANS>-RULEID = 1.
<GRPC_S_TRANS>-VERSION = 1.
<GRPC_S_TRANS>-SCHEMANO = 1.
<GRPC_S_TRANS>-SCOUNTER = 1.
<GRPC_S_TRANS>-RULEVAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPC_S_TRANS-ANALYSISTYPE, sy-vline,
  WA_GRPC_S_TRANS-ANALYSISIND, sy-vline,
  WA_GRPC_S_TRANS-RANGE, sy-vline,
  WA_GRPC_S_TRANS-ABSVAL_MW, sy-vline,
  WA_GRPC_S_TRANS-ABSVAL_SDEF, sy-vline,
  WA_GRPC_S_TRANS-ABSVAL_DEF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPC_S_TRANS 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_GRPC_S_TRANS 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_GRPC_S_TRANS INTO WA_GRPC_S_TRANS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_GRPC_S_TRANS_STR, 
RULEID TYPE STRING,
VERSION TYPE STRING,
SCHEMANO TYPE STRING,
SCOUNTER TYPE STRING,
RULEVAR TYPE STRING,
ANALYSISTYPE TYPE STRING,
ANALYSISIND TYPE STRING,
RANGE TYPE STRING,
ABSVAL_MW TYPE STRING,
ABSVAL_SDEF TYPE STRING,
ABSVAL_DEF TYPE STRING,
PERCNT_MW TYPE STRING,
PERCNT_SDEF TYPE STRING,
PERCNT_DEF TYPE STRING,
CHG_CNTL_IND TYPE STRING,
WAERS TYPE STRING,
MW_IND TYPE STRING,
SD_IND TYPE STRING,
DEF_IND TYPE STRING,
ABSVAL_MW_CNTL TYPE STRING,
ABSVAL_SDEF_CNTL TYPE STRING,
ABSVAL_DEF_CNTL TYPE STRING,
PERCNT_MW_CNTL TYPE STRING,
PERCNT_SDEF_CNTL TYPE STRING,
PERCNT_DEF_CNTL TYPE STRING,
EXIST_CHK_IND TYPE STRING,
BLANK_CHK_IND TYPE STRING,
NUM_OF_CHNG_IND TYPE STRING,
VALUE_CHK_IND TYPE STRING,
CCI TYPE STRING,
INCL_EXCL_IND TYPE STRING,
GROUPING_NO TYPE STRING,
DEPENDENCY_NO TYPE STRING,
SCHEMA_DESC TYPE STRING,
RULEID_DESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPC_S_TRANS_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_GRPC_S_TRANS_STR-RULEID sy-vline 
WA_GRPC_S_TRANS_STR-VERSION sy-vline 
WA_GRPC_S_TRANS_STR-SCHEMANO sy-vline 
WA_GRPC_S_TRANS_STR-SCOUNTER sy-vline 
WA_GRPC_S_TRANS_STR-RULEVAR sy-vline 
WA_GRPC_S_TRANS_STR-ANALYSISTYPE sy-vline 
WA_GRPC_S_TRANS_STR-ANALYSISIND sy-vline 
WA_GRPC_S_TRANS_STR-RANGE sy-vline 
WA_GRPC_S_TRANS_STR-ABSVAL_MW sy-vline 
WA_GRPC_S_TRANS_STR-ABSVAL_SDEF sy-vline 
WA_GRPC_S_TRANS_STR-ABSVAL_DEF sy-vline 
WA_GRPC_S_TRANS_STR-PERCNT_MW sy-vline 
WA_GRPC_S_TRANS_STR-PERCNT_SDEF sy-vline 
WA_GRPC_S_TRANS_STR-PERCNT_DEF sy-vline 
WA_GRPC_S_TRANS_STR-CHG_CNTL_IND sy-vline 
WA_GRPC_S_TRANS_STR-WAERS sy-vline 
WA_GRPC_S_TRANS_STR-MW_IND sy-vline 
WA_GRPC_S_TRANS_STR-SD_IND sy-vline 
WA_GRPC_S_TRANS_STR-DEF_IND sy-vline 
WA_GRPC_S_TRANS_STR-ABSVAL_MW_CNTL sy-vline 
WA_GRPC_S_TRANS_STR-ABSVAL_SDEF_CNTL sy-vline 
WA_GRPC_S_TRANS_STR-ABSVAL_DEF_CNTL sy-vline 
WA_GRPC_S_TRANS_STR-PERCNT_MW_CNTL sy-vline 
WA_GRPC_S_TRANS_STR-PERCNT_SDEF_CNTL sy-vline 
WA_GRPC_S_TRANS_STR-PERCNT_DEF_CNTL sy-vline 
WA_GRPC_S_TRANS_STR-EXIST_CHK_IND sy-vline 
WA_GRPC_S_TRANS_STR-BLANK_CHK_IND sy-vline 
WA_GRPC_S_TRANS_STR-NUM_OF_CHNG_IND sy-vline 
WA_GRPC_S_TRANS_STR-VALUE_CHK_IND sy-vline 
WA_GRPC_S_TRANS_STR-CCI sy-vline 
WA_GRPC_S_TRANS_STR-INCL_EXCL_IND sy-vline 
WA_GRPC_S_TRANS_STR-GROUPING_NO sy-vline 
WA_GRPC_S_TRANS_STR-DEPENDENCY_NO sy-vline 
WA_GRPC_S_TRANS_STR-SCHEMA_DESC sy-vline 
WA_GRPC_S_TRANS_STR-RULEID_DESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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