ABAP Select data from SAP table GRPC_ESA_S_MC_TESTLOG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GRPC_ESA_S_MC_TESTLOG 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_ESA_S_MC_TESTLOG. 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_ESA_S_MC_TESTLOG 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_ESA_S_MC_TESTLOG TYPE STANDARD TABLE OF GRPC_ESA_S_MC_TESTLOG,
      WA_GRPC_ESA_S_MC_TESTLOG TYPE GRPC_ESA_S_MC_TESTLOG,
      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_ESA_S_MC_TESTLOG> TYPE GRPC_ESA_S_MC_TESTLOG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPC_ESA_S_MC_TESTLOG
*  INTO TABLE @DATA(IT_GRPC_ESA_S_MC_TESTLOG2).
*--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_ESA_S_MC_TESTLOG INDEX 1 INTO DATA(WA_GRPC_ESA_S_MC_TESTLOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPC_ESA_S_MC_TESTLOG>-ORGUNIT = 1.
<GRPC_ESA_S_MC_TESTLOG>-ORGUNIT_T = 1.
<GRPC_ESA_S_MC_TESTLOG>-PRGROUP = 1.
<GRPC_ESA_S_MC_TESTLOG>-PRGROUP_T = 1.
<GRPC_ESA_S_MC_TESTLOG>-MCGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPC_ESA_S_MC_TESTLOG-MCGROUP_T, sy-vline,
  WA_GRPC_ESA_S_MC_TESTLOG-MCONTROL, sy-vline,
  WA_GRPC_ESA_S_MC_TESTLOG-MCONTROL_T, sy-vline,
  WA_GRPC_ESA_S_MC_TESTLOG-TESTLOG, sy-vline,
  WA_GRPC_ESA_S_MC_TESTLOG-RATING, sy-vline,
  WA_GRPC_ESA_S_MC_TESTLOG-RATING_T, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPC_ESA_S_MC_TESTLOG 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_ESA_S_MC_TESTLOG 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_ESA_S_MC_TESTLOG INTO WA_GRPC_ESA_S_MC_TESTLOG.


*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 TSTPS, internal->external for field CREATE_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_GRPC_ESA_S_MC_TESTLOG-CREATE_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPC_ESA_S_MC_TESTLOG-CREATE_TIME.
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_GRPC_ESA_S_MC_TESTLOG_STR, 
ORGUNIT TYPE STRING,
ORGUNIT_T TYPE STRING,
PRGROUP TYPE STRING,
PRGROUP_T TYPE STRING,
MCGROUP TYPE STRING,
MCGROUP_T TYPE STRING,
MCONTROL TYPE STRING,
MCONTROL_T TYPE STRING,
TESTLOG TYPE STRING,
RATING TYPE STRING,
RATING_T TYPE STRING,
TESTLOG_COMMENT TYPE STRING,
TESTING_DATE TYPE STRING,
MC_DESCR TYPE STRING,
MC_TEST_DESCR TYPE STRING,
NO_OF_ISSUES TYPE STRING,
TESTLOG_T TYPE STRING,
TESTLOG_STATUS TYPE STRING,
TESTLOG_STATUS_T TYPE STRING,
CF_STATUS TYPE STRING,
CF_STATUS_T TYPE STRING,
CREATE_TIME TYPE STRING,
NO_ATTACHMENTS TYPE STRING,
TESTER_NUMB TYPE STRING,
TESTER_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPC_ESA_S_MC_TESTLOG_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_ESA_S_MC_TESTLOG_STR-ORGUNIT sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-ORGUNIT_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-PRGROUP sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-PRGROUP_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-MCGROUP sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-MCGROUP_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-MCONTROL sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-MCONTROL_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTLOG sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-RATING sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-RATING_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTLOG_COMMENT sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTING_DATE sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-MC_DESCR sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-MC_TEST_DESCR sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-NO_OF_ISSUES sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTLOG_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTLOG_STATUS sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTLOG_STATUS_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-CF_STATUS sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-CF_STATUS_T sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-CREATE_TIME sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-NO_ATTACHMENTS sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTER_NUMB sy-vline 
WA_GRPC_ESA_S_MC_TESTLOG_STR-TESTER_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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