ABAP Select data from SAP table ICL_TICL161_PREV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICL_TICL161_PREV 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 ICL_TICL161_PREV. 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 ICL_TICL161_PREV 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_ICL_TICL161_PREV TYPE STANDARD TABLE OF ICL_TICL161_PREV,
      WA_ICL_TICL161_PREV TYPE ICL_TICL161_PREV,
      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: <ICL_TICL161_PREV> TYPE ICL_TICL161_PREV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ICL_TICL161_PREV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ICL_TICL161_PREV
  INTO TABLE IT_ICL_TICL161_PREV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL_TICL161_PREV
*  INTO TABLE @DATA(IT_ICL_TICL161_PREV2).
*--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_ICL_TICL161_PREV INDEX 1 INTO DATA(WA_ICL_TICL161_PREV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICL_TICL161_PREV ASSIGNING <ICL_TICL161_PREV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL_TICL161_PREV>-CLIENT = 1.
<ICL_TICL161_PREV>-BENTREE = 1.
<ICL_TICL161_PREV>-GENERAT = 1.
<ICL_TICL161_PREV>-VERSION = 1.
<ICL_TICL161_PREV>-ACTIVE = 1.

ENDLOOP.

LOOP AT IT_ICL_TICL161_PREV INTO WA_ICL_TICL161_PREV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL_TICL161_PREV-CHANGEDBY, sy-vline,
  WA_ICL_TICL161_PREV-CHANGETIME, sy-vline,
  WA_ICL_TICL161_PREV-INACTIVETIME, sy-vline,
  WA_ICL_TICL161_PREV-EFFFROMTIME, sy-vline,
  WA_ICL_TICL161_PREV-EFFTOTIME, sy-vline,
  WA_ICL_TICL161_PREV-TERMTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL_TICL161_PREV 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_ICL_TICL161_PREV 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_ICL_TICL161_PREV INTO WA_ICL_TICL161_PREV.


*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 TSTAM, internal->external for field CHANGETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_TICL161_PREV-CHANGETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_TICL161_PREV-CHANGETIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field INACTIVETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_TICL161_PREV-INACTIVETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_TICL161_PREV-INACTIVETIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field EFFFROMTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_TICL161_PREV-EFFFROMTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_TICL161_PREV-EFFFROMTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field EFFTOTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_TICL161_PREV-EFFTOTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_TICL161_PREV-EFFTOTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field TERMTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_TICL161_PREV-TERMTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_TICL161_PREV-TERMTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field NEXTEFFFROMTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_TICL161_PREV-NEXTEFFFROMTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_TICL161_PREV-NEXTEFFFROMTIME.
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_ICL_TICL161_PREV_STR, 
CLIENT TYPE STRING,
BENTREE TYPE STRING,
GENERAT TYPE STRING,
VERSION TYPE STRING,
ACTIVE TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGETIME TYPE STRING,
INACTIVETIME TYPE STRING,
EFFFROMTIME TYPE STRING,
EFFTOTIME TYPE STRING,
TERMTIME TYPE STRING,
DELETED TYPE STRING,
OVERSION TYPE STRING,
OSYSID TYPE STRING,
OMANDT TYPE STRING,
BVERSION TYPE STRING,
VERSION_REF TYPE STRING,
CURR TYPE STRING,
PBENTREE TYPE STRING,
XSUBCLAIM TYPE STRING,
BENTREECAT TYPE STRING,
AWAITPERREJR TYPE STRING,
BWAITPERREJR TYPE STRING,
BENTREEN TYPE STRING,
BENTREEGN TYPE STRING,
BENTREEVN TYPE STRING,
OPERATION TYPE STRING,
OPORDER TYPE STRING,
RECORDTYPE TYPE STRING,
XNEWSECTION TYPE STRING,
MAXVERSION TYPE STRING,
NEXTEFFFROMTIME TYPE STRING,
VCHANGEDATE TYPE STRING,
VCHANGETIME TYPE STRING,
VINACTIVEDATE TYPE STRING,
VINACTIVETIME TYPE STRING,
VEFFFROMDATE TYPE STRING,
VEFFFROMTIME TYPE STRING,
VEFFTODATE TYPE STRING,
VEFFTOTIME TYPE STRING,
VTERMDATE TYPE STRING,
VTERMTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL_TICL161_PREV_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_ICL_TICL161_PREV_STR-CLIENT sy-vline 
WA_ICL_TICL161_PREV_STR-BENTREE sy-vline 
WA_ICL_TICL161_PREV_STR-GENERAT sy-vline 
WA_ICL_TICL161_PREV_STR-VERSION sy-vline 
WA_ICL_TICL161_PREV_STR-ACTIVE sy-vline 
WA_ICL_TICL161_PREV_STR-CHANGEDBY sy-vline 
WA_ICL_TICL161_PREV_STR-CHANGETIME sy-vline 
WA_ICL_TICL161_PREV_STR-INACTIVETIME sy-vline 
WA_ICL_TICL161_PREV_STR-EFFFROMTIME sy-vline 
WA_ICL_TICL161_PREV_STR-EFFTOTIME sy-vline 
WA_ICL_TICL161_PREV_STR-TERMTIME sy-vline 
WA_ICL_TICL161_PREV_STR-DELETED sy-vline 
WA_ICL_TICL161_PREV_STR-OVERSION sy-vline 
WA_ICL_TICL161_PREV_STR-OSYSID sy-vline 
WA_ICL_TICL161_PREV_STR-OMANDT sy-vline 
WA_ICL_TICL161_PREV_STR-BVERSION sy-vline 
WA_ICL_TICL161_PREV_STR-VERSION_REF sy-vline 
WA_ICL_TICL161_PREV_STR-CURR sy-vline 
WA_ICL_TICL161_PREV_STR-PBENTREE sy-vline 
WA_ICL_TICL161_PREV_STR-XSUBCLAIM sy-vline 
WA_ICL_TICL161_PREV_STR-BENTREECAT sy-vline 
WA_ICL_TICL161_PREV_STR-AWAITPERREJR sy-vline 
WA_ICL_TICL161_PREV_STR-BWAITPERREJR sy-vline 
WA_ICL_TICL161_PREV_STR-BENTREEN sy-vline 
WA_ICL_TICL161_PREV_STR-BENTREEGN sy-vline 
WA_ICL_TICL161_PREV_STR-BENTREEVN sy-vline 
WA_ICL_TICL161_PREV_STR-OPERATION sy-vline 
WA_ICL_TICL161_PREV_STR-OPORDER sy-vline 
WA_ICL_TICL161_PREV_STR-RECORDTYPE sy-vline 
WA_ICL_TICL161_PREV_STR-XNEWSECTION sy-vline 
WA_ICL_TICL161_PREV_STR-MAXVERSION sy-vline 
WA_ICL_TICL161_PREV_STR-NEXTEFFFROMTIME sy-vline 
WA_ICL_TICL161_PREV_STR-VCHANGEDATE sy-vline 
WA_ICL_TICL161_PREV_STR-VCHANGETIME sy-vline 
WA_ICL_TICL161_PREV_STR-VINACTIVEDATE sy-vline 
WA_ICL_TICL161_PREV_STR-VINACTIVETIME sy-vline 
WA_ICL_TICL161_PREV_STR-VEFFFROMDATE sy-vline 
WA_ICL_TICL161_PREV_STR-VEFFFROMTIME sy-vline 
WA_ICL_TICL161_PREV_STR-VEFFTODATE sy-vline 
WA_ICL_TICL161_PREV_STR-VEFFTOTIME sy-vline 
WA_ICL_TICL161_PREV_STR-VTERMDATE sy-vline 
WA_ICL_TICL161_PREV_STR-VTERMTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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