ABAP Select data from SAP table ACE_PERIODDATA_ALV_S4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ACE_PERIODDATA_ALV_S4 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 ACE_PERIODDATA_ALV_S4. 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 ACE_PERIODDATA_ALV_S4 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_ACE_PERIODDATA_ALV_S4 TYPE STANDARD TABLE OF ACE_PERIODDATA_ALV_S4,
      WA_ACE_PERIODDATA_ALV_S4 TYPE ACE_PERIODDATA_ALV_S4,
      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: <ACE_PERIODDATA_ALV_S4> TYPE ACE_PERIODDATA_ALV_S4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ACE_PERIODDATA_ALV_S4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ACE_PERIODDATA_ALV_S4
  INTO TABLE IT_ACE_PERIODDATA_ALV_S4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACE_PERIODDATA_ALV_S4
*  INTO TABLE @DATA(IT_ACE_PERIODDATA_ALV_S42).
*--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_ACE_PERIODDATA_ALV_S4 INDEX 1 INTO DATA(WA_ACE_PERIODDATA_ALV_S42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ACE_PERIODDATA_ALV_S4 ASSIGNING <ACE_PERIODDATA_ALV_S4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACE_PERIODDATA_ALV_S4>-COMP = 1.
<ACE_PERIODDATA_ALV_S4>-LOGSYS = 1.
<ACE_PERIODDATA_ALV_S4>-BUKRS = 1.
<ACE_PERIODDATA_ALV_S4>-REF_KEY = 1.
<ACE_PERIODDATA_ALV_S4>-REF_SUBKEY = 1.

ENDLOOP.

LOOP AT IT_ACE_PERIODDATA_ALV_S4 INTO WA_ACE_PERIODDATA_ALV_S4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACE_PERIODDATA_ALV_S4-ITEMTYPE, sy-vline,
  WA_ACE_PERIODDATA_ALV_S4-RLDNR, sy-vline,
  WA_ACE_PERIODDATA_ALV_S4-PERIOD_START_DATE, sy-vline,
  WA_ACE_PERIODDATA_ALV_S4-PERIOD_END_DATE, sy-vline,
  WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_WSL, sy-vline,
  WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_HSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACE_PERIODDATA_ALV_S4 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_ACE_PERIODDATA_ALV_S4 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_ACE_PERIODDATA_ALV_S4 INTO WA_ACE_PERIODDATA_ALV_S4.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ITEMTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-ITEMTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-ITEMTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_WSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_WSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_WSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_HSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_HSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_HSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_KSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_KSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_KSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_OSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_OSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_OSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_VSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_VSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_VSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_BSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_BSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_BSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_CSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_CSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_CSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_DSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_DSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_DSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_ESL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_ESL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_ESL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_FSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_FSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_FSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UPLOADED_ACCR_AMNT_GSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_GSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACE_PERIODDATA_ALV_S4-UPLOADED_ACCR_AMNT_GSL.
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_ACE_PERIODDATA_ALV_S4_STR, 
COMP TYPE STRING,
LOGSYS TYPE STRING,
BUKRS TYPE STRING,
REF_KEY TYPE STRING,
REF_SUBKEY TYPE STRING,
ITEMTYPE TYPE STRING,
RLDNR TYPE STRING,
PERIOD_START_DATE TYPE STRING,
PERIOD_END_DATE TYPE STRING,
UPLOADED_ACCR_AMNT_WSL TYPE STRING,
UPLOADED_ACCR_AMNT_HSL TYPE STRING,
UPLOADED_ACCR_AMNT_KSL TYPE STRING,
UPLOADED_ACCR_AMNT_OSL TYPE STRING,
UPLOADED_ACCR_AMNT_VSL TYPE STRING,
UPLOADED_ACCR_AMNT_BSL TYPE STRING,
UPLOADED_ACCR_AMNT_CSL TYPE STRING,
UPLOADED_ACCR_AMNT_DSL TYPE STRING,
UPLOADED_ACCR_AMNT_ESL TYPE STRING,
UPLOADED_ACCR_AMNT_FSL TYPE STRING,
UPLOADED_ACCR_AMNT_GSL TYPE STRING,
RWCURUPL TYPE STRING,
RHCURUPL TYPE STRING,
RKCURUPL TYPE STRING,
ROCURUPL TYPE STRING,
RVCURUPL TYPE STRING,
RBCURUPL TYPE STRING,
RCCURUPL TYPE STRING,
RDCURUPL TYPE STRING,
RECURUPL TYPE STRING,
RFCURUPL TYPE STRING,
RGCURUPL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACE_PERIODDATA_ALV_S4_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_ACE_PERIODDATA_ALV_S4_STR-COMP sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-LOGSYS sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-BUKRS sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-REF_KEY sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-REF_SUBKEY sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-ITEMTYPE sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RLDNR sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-PERIOD_START_DATE sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-PERIOD_END_DATE sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_WSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_HSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_KSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_OSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_VSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_BSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_CSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_DSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_ESL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_FSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-UPLOADED_ACCR_AMNT_GSL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RWCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RHCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RKCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-ROCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RVCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RBCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RCCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RDCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RECURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RFCURUPL sy-vline 
WA_ACE_PERIODDATA_ALV_S4_STR-RGCURUPL sy-vline      INTO ld_text SEPARATED BY SPACE.

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