ABAP Select data from SAP table CRMS_ES_PARALLEL_EXTRACT_REC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_ES_PARALLEL_EXTRACT_REC
*  INTO TABLE @DATA(IT_CRMS_ES_PARALLEL_EXTRACT_REC2).
*--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_CRMS_ES_PARALLEL_EXTRACT_REC INDEX 1 INTO DATA(WA_CRMS_ES_PARALLEL_EXTRACT_REC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_ES_PARALLEL_EXTRACT_REC>-TASKID = 1.
<CRMS_ES_PARALLEL_EXTRACT_REC>-TEMPLATE_HEADER = 1.
<CRMS_ES_PARALLEL_EXTRACT_REC>-TEMPLATE_ID = 1.
<CRMS_ES_PARALLEL_EXTRACT_REC>-TYPE = 1.
<CRMS_ES_PARALLEL_EXTRACT_REC>-BACKEND_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_ES_PARALLEL_EXTRACT_REC-BOL_ROOT_OBJ, sy-vline,
  WA_CRMS_ES_PARALLEL_EXTRACT_REC-ROOT_OBJ_STRUCNAME, sy-vline,
  WA_CRMS_ES_PARALLEL_EXTRACT_REC-BOL_QUERY_OBJ, sy-vline,
  WA_CRMS_ES_PARALLEL_EXTRACT_REC-QUERY_OBJ_STRUCNAME, sy-vline,
  WA_CRMS_ES_PARALLEL_EXTRACT_REC-BOR_OBJ_TYPE, sy-vline,
  WA_CRMS_ES_PARALLEL_EXTRACT_REC-DESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_ES_PARALLEL_EXTRACT_REC 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_CRMS_ES_PARALLEL_EXTRACT_REC 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_CRMS_ES_PARALLEL_EXTRACT_REC INTO WA_CRMS_ES_PARALLEL_EXTRACT_REC.


*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_CRMS_ES_PARALLEL_EXTRACT_REC_STR, 
TASKID TYPE STRING,
TEMPLATE_HEADER TYPE STRING,
TEMPLATE_ID TYPE STRING,
TYPE TYPE STRING,
BACKEND_NAME TYPE STRING,
BOL_ROOT_OBJ TYPE STRING,
ROOT_OBJ_STRUCNAME TYPE STRING,
BOL_QUERY_OBJ TYPE STRING,
QUERY_OBJ_STRUCNAME TYPE STRING,
BOR_OBJ_TYPE TYPE STRING,
DESCRIPTION TYPE STRING,
COMPONENT_SET TYPE STRING,
SWITCH_ID TYPE STRING,
REACTION TYPE STRING,
KEY_FIELDS TYPE STRING,
BOL_QUERY_FILTER TYPE STRING,
FILTER_EXEC_REQUIRED TYPE STRING,
ROOT_NODE_ID TYPE STRING,
ROOT_STRUCT_NAME TYPE STRING,
OBJECTIDS TYPE STRING,
ES_OBJECT_EXTRACT TYPE STRING,
MESSAGES TYPE STRING,
EXEC_SUCCESS TYPE STRING,
TASK_EXECUTED TYPE STRING,
NO_OF_RESUB TYPE STRING,
WITH_MASS_ACCESS TYPE STRING,
MODELED_RELATIONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_ES_PARALLEL_EXTRACT_REC_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_CRMS_ES_PARALLEL_EXTRACT_REC_STR-TASKID sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-TEMPLATE_HEADER sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-TEMPLATE_ID sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-TYPE sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-BACKEND_NAME sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-BOL_ROOT_OBJ sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-ROOT_OBJ_STRUCNAME sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-BOL_QUERY_OBJ sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-QUERY_OBJ_STRUCNAME sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-BOR_OBJ_TYPE sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-DESCRIPTION sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-COMPONENT_SET sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-SWITCH_ID sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-REACTION sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-KEY_FIELDS sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-BOL_QUERY_FILTER sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-FILTER_EXEC_REQUIRED sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-ROOT_NODE_ID sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-ROOT_STRUCT_NAME sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-OBJECTIDS sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-ES_OBJECT_EXTRACT sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-MESSAGES sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-EXEC_SUCCESS sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-TASK_EXECUTED sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-NO_OF_RESUB sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-WITH_MASS_ACCESS sy-vline 
WA_CRMS_ES_PARALLEL_EXTRACT_REC_STR-MODELED_RELATIONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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