ABAP Select data from SAP table SISU_METER_READER_INFO_BR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SISU_METER_READER_INFO_BR
*  INTO TABLE @DATA(IT_SISU_METER_READER_INFO_BR2).
*--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_SISU_METER_READER_INFO_BR INDEX 1 INTO DATA(WA_SISU_METER_READER_INFO_BR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SISU_METER_READER_INFO_BR>-OBJECT_ID = 1.
<SISU_METER_READER_INFO_BR>-METER_READER_UNIT = 1.
<SISU_METER_READER_INFO_BR>-SCHEDULED_METER_READING_DATE = 1.
<SISU_METER_READER_INFO_BR>-METER_READING_DOCUMENT = 1.
<SISU_METER_READER_INFO_BR>-CONTRACT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SISU_METER_READER_INFO_BR-MATERIAL_NUMBER, sy-vline,
  WA_SISU_METER_READER_INFO_BR-OBJECT_STATUS, sy-vline,
  WA_SISU_METER_READER_INFO_BR-DOWNLOAD_DATE, sy-vline,
  WA_SISU_METER_READER_INFO_BR-DOWNLOAD_EXECUTION_DATE, sy-vline,
  WA_SISU_METER_READER_INFO_BR-DOWNLOAD_USER, sy-vline,
  WA_SISU_METER_READER_INFO_BR-DOWNLOAD_EXECUTION_HOUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SISU_METER_READER_INFO_BR 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_SISU_METER_READER_INFO_BR 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_SISU_METER_READER_INFO_BR INTO WA_SISU_METER_READER_INFO_BR.


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

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

*Conversion exit MATN1, internal->external for field MATERIAL_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_SISU_METER_READER_INFO_BR-MATERIAL_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SISU_METER_READER_INFO_BR-MATERIAL_NUMBER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field EQUIPMENT_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SISU_METER_READER_INFO_BR-EQUIPMENT_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SISU_METER_READER_INFO_BR-EQUIPMENT_NUMBER.
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_SISU_METER_READER_INFO_BR_STR, 
OBJECT_ID TYPE STRING,
METER_READER_UNIT TYPE STRING,
SCHEDULED_METER_READING_DATE TYPE STRING,
METER_READING_DOCUMENT TYPE STRING,
CONTRACT TYPE STRING,
MATERIAL_NUMBER TYPE STRING,
OBJECT_STATUS TYPE STRING,
DOWNLOAD_DATE TYPE STRING,
DOWNLOAD_EXECUTION_DATE TYPE STRING,
DOWNLOAD_USER TYPE STRING,
DOWNLOAD_EXECUTION_HOUR TYPE STRING,
TARGET_SYSTEM_ID TYPE STRING,
METER_READING_REASON TYPE STRING,
INSTALLATION TYPE STRING,
INDUSTRY_SYSTEM TYPE STRING,
METER_READING_CENTER TYPE STRING,
METER_READING_DATE_RELEVANT_TO TYPE STRING,
EQUIPMENT_NUMBER TYPE STRING,
REGISTER TYPE STRING,
METER_READING_TYPE TYPE STRING,
TARGET_SYSTEM_TIMESTAMP TYPE STRING,
UPLOAD_DATE TYPE STRING,
UPLOAD_HOUR TYPE STRING,
UPLOAD_USER TYPE STRING,
REVERSE_DATE TYPE STRING,
REVERSE_HOUR TYPE STRING,
REVERSE_USER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SISU_METER_READER_INFO_BR_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_SISU_METER_READER_INFO_BR_STR-OBJECT_ID sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-METER_READER_UNIT sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-SCHEDULED_METER_READING_DATE sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-METER_READING_DOCUMENT sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-CONTRACT sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-MATERIAL_NUMBER sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-OBJECT_STATUS sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-DOWNLOAD_DATE sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-DOWNLOAD_EXECUTION_DATE sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-DOWNLOAD_USER sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-DOWNLOAD_EXECUTION_HOUR sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-TARGET_SYSTEM_ID sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-METER_READING_REASON sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-INSTALLATION sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-INDUSTRY_SYSTEM sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-METER_READING_CENTER sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-METER_READING_DATE_RELEVANT_TO sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-EQUIPMENT_NUMBER sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-REGISTER sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-METER_READING_TYPE sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-TARGET_SYSTEM_TIMESTAMP sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-UPLOAD_DATE sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-UPLOAD_HOUR sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-UPLOAD_USER sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-REVERSE_DATE sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-REVERSE_HOUR sy-vline 
WA_SISU_METER_READER_INFO_BR_STR-REVERSE_USER sy-vline      INTO ld_text SEPARATED BY SPACE.

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