ABAP Select data from SAP table GLE_MCA_STR_TOTALS_CLSSC_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLE_MCA_STR_TOTALS_CLSSC_DATA
*  INTO TABLE @DATA(IT_GLE_MCA_STR_TOTALS_CLSSC_DATA2).
*--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_GLE_MCA_STR_TOTALS_CLSSC_DATA INDEX 1 INTO DATA(WA_GLE_MCA_STR_TOTALS_CLSSC_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLE_MCA_STR_TOTALS_CLSSC_DATA>-RYEAR = 1.
<GLE_MCA_STR_TOTALS_CLSSC_DATA>-POPER = 1.
<GLE_MCA_STR_TOTALS_CLSSC_DATA>-RACCT = 1.
<GLE_MCA_STR_TOTALS_CLSSC_DATA>-BUKRS = 1.
<GLE_MCA_STR_TOTALS_CLSSC_DATA>-RBUSA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-RVERS, sy-vline,
  WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-RTCUR, sy-vline,
  WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-VALUTYP, sy-vline,
  WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-VALUETYPE, sy-vline,
  WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-CURTYPE, sy-vline,
  WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-FISCPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLE_MCA_STR_TOTALS_CLSSC_DATA 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_GLE_MCA_STR_TOTALS_CLSSC_DATA 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_GLE_MCA_STR_TOTALS_CLSSC_DATA INTO WA_GLE_MCA_STR_TOTALS_CLSSC_DATA.


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

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

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

*Conversion exit PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-FISCPER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit AC172, internal->external for field CREDIT_CONV
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-CREDIT_CONV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_TOTALS_CLSSC_DATA-CREDIT_CONV.
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_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR, 
RYEAR TYPE STRING,
POPER TYPE STRING,
RACCT TYPE STRING,
BUKRS TYPE STRING,
RBUSA TYPE STRING,
RVERS TYPE STRING,
RTCUR TYPE STRING,
VALUTYP TYPE STRING,
VALUETYPE TYPE STRING,
CURTYPE TYPE STRING,
FISCPER TYPE STRING,
FISCVAR TYPE STRING,
CHARTACCTS TYPE STRING,
CURRUNIT TYPE STRING,
TRGT_CURR TYPE STRING,
RATE_TYPE TYPE STRING,
TRANS_DATE TYPE STRING,
FLAG_MDERTS TYPE STRING,
BALANCE TYPE STRING,
BALANCE_CONV TYPE STRING,
DEBIT TYPE STRING,
DEBIT_CONV TYPE STRING,
CREDIT TYPE STRING,
CREDIT_CONV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_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_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-RYEAR sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-POPER sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-RACCT sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-BUKRS sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-RBUSA sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-RVERS sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-RTCUR sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-VALUTYP sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-VALUETYPE sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-CURTYPE sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-FISCPER sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-FISCVAR sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-CHARTACCTS sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-CURRUNIT sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-TRGT_CURR sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-RATE_TYPE sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-TRANS_DATE sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-FLAG_MDERTS sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-BALANCE sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-BALANCE_CONV sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-DEBIT sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-DEBIT_CONV sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-CREDIT sy-vline 
WA_GLE_MCA_STR_TOTALS_CLSSC_DATA_STR-CREDIT_CONV sy-vline      INTO ld_text SEPARATED BY SPACE.

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