ABAP Select data from SAP table CCIHS_MJAPI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCIHS_MJAPI
*  INTO TABLE @DATA(IT_CCIHS_MJAPI2).
*--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_CCIHS_MJAPI INDEX 1 INTO DATA(WA_CCIHS_MJAPI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCIHS_MJAPI>-ERRORMODE = 1.
<CCIHS_MJAPI>-ERRORINFO = 1.
<CCIHS_MJAPI>-ERRORCLASS = 1.
<CCIHS_MJAPI>-ERRORPARAM = 1.
<CCIHS_MJAPI>-LOGLOCKMOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCIHS_MJAPI-EXTINFO, sy-vline,
  WA_CCIHS_MJAPI-LINEMOD, sy-vline,
  WA_CCIHS_MJAPI-MANDT, sy-vline,
  WA_CCIHS_MJAPI-RECN, sy-vline,
  WA_CCIHS_MJAPI-ACTN, sy-vline,
  WA_CCIHS_MJAPI-VALFR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCIHS_MJAPI 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_CCIHS_MJAPI 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_CCIHS_MJAPI INTO WA_CCIHS_MJAPI.


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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field FLOWUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_MJAPI-FLOWUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_MJAPI-FLOWUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MSRTEMPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_MJAPI-MSRTEMPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_MJAPI-MSRTEMPUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AIRHUMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_MJAPI-AIRHUMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_MJAPI-AIRHUMUNIT.
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_CCIHS_MJAPI_STR, 
ERRORMODE TYPE STRING,
ERRORINFO TYPE STRING,
ERRORCLASS TYPE STRING,
ERRORPARAM TYPE STRING,
LOGLOCKMOD TYPE STRING,
EXTINFO TYPE STRING,
LINEMOD TYPE STRING,
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
OBJNR TYPE STRING,
MJID TYPE STRING,
MJCAT TYPE STRING,
MJSTAT TYPE STRING,
EPTYPE TYPE STRING,
EPID TYPE STRING,
RECNTMPWA TYPE STRING,
MJVALFR TYPE STRING,
MJVALTO TYPE STRING,
MSRBGNDATE TYPE STRING,
MSRBGNTIME TYPE STRING,
MSRENDDATE TYPE STRING,
MSRENDTIME TYPE STRING,
MDURATION TYPE STRING,
MPLDURATION TYPE STRING,
MEXCHANGE TYPE STRING,
MSOURCEID TYPE STRING,
MSOURCENOTE TYPE STRING,
FIXLOCFLG TYPE STRING,
MPERIOD TYPE STRING,
FLOW TYPE STRING,
FLOWUNIT TYPE STRING,
DVNR TYPE STRING,
MDEVTYPE TYPE STRING,
METHOD TYPE STRING,
MPERSON TYPE STRING,
MPERSONGRP TYPE STRING,
MPERSONNAME TYPE STRING,
MJNOTE1 TYPE STRING,
MJNOTEFLG1 TYPE STRING,
MJNOTE2 TYPE STRING,
MJNOTEFLG2 TYPE STRING,
RESPIRATOR TYPE STRING,
SAMPLENR TYPE STRING,
MJCOSTAC TYPE STRING,
MJCTRAREA TYPE STRING,
RECNTMJ TYPE STRING,
LIMEXCEEDFLG TYPE STRING,
STMFLG TYPE STRING,
METCOASTS TYPE STRING,
METCUKY TYPE STRING,
VOLUME TYPE STRING,
VOLDECIMALS TYPE STRING,
MJCOCODE TYPE STRING,
FLGEXPLOCK TYPE STRING,
OPCOND TYPE STRING,
PLBEGDATE TYPE STRING,
PLENDDATE TYPE STRING,
MSRTEMP TYPE STRING,
MSRTEMPUNIT TYPE STRING,
AIRHUM TYPE STRING,
AIRHUMUNIT TYPE STRING,
AIRCOND TYPE STRING,
AIRCHNGRATE TYPE STRING,
PROTEQUI TYPE STRING,
FLG_NIGHT TYPE STRING,
PLBEGTIME TYPE STRING,
PLENDTIME TYPE STRING,
KEYDRAWNFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCIHS_MJAPI_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_CCIHS_MJAPI_STR-ERRORMODE sy-vline 
WA_CCIHS_MJAPI_STR-ERRORINFO sy-vline 
WA_CCIHS_MJAPI_STR-ERRORCLASS sy-vline 
WA_CCIHS_MJAPI_STR-ERRORPARAM sy-vline 
WA_CCIHS_MJAPI_STR-LOGLOCKMOD sy-vline 
WA_CCIHS_MJAPI_STR-EXTINFO sy-vline 
WA_CCIHS_MJAPI_STR-LINEMOD sy-vline 
WA_CCIHS_MJAPI_STR-MANDT sy-vline 
WA_CCIHS_MJAPI_STR-RECN sy-vline 
WA_CCIHS_MJAPI_STR-ACTN sy-vline 
WA_CCIHS_MJAPI_STR-VALFR sy-vline 
WA_CCIHS_MJAPI_STR-VALTO sy-vline 
WA_CCIHS_MJAPI_STR-AENNR sy-vline 
WA_CCIHS_MJAPI_STR-DELFLG sy-vline 
WA_CCIHS_MJAPI_STR-PARKFLG sy-vline 
WA_CCIHS_MJAPI_STR-CRDAT sy-vline 
WA_CCIHS_MJAPI_STR-CRNAM sy-vline 
WA_CCIHS_MJAPI_STR-UPDDAT sy-vline 
WA_CCIHS_MJAPI_STR-UPDNAM sy-vline 
WA_CCIHS_MJAPI_STR-SRSID sy-vline 
WA_CCIHS_MJAPI_STR-OWNID sy-vline 
WA_CCIHS_MJAPI_STR-RECNROOT sy-vline 
WA_CCIHS_MJAPI_STR-OBJNR sy-vline 
WA_CCIHS_MJAPI_STR-MJID sy-vline 
WA_CCIHS_MJAPI_STR-MJCAT sy-vline 
WA_CCIHS_MJAPI_STR-MJSTAT sy-vline 
WA_CCIHS_MJAPI_STR-EPTYPE sy-vline 
WA_CCIHS_MJAPI_STR-EPID sy-vline 
WA_CCIHS_MJAPI_STR-RECNTMPWA sy-vline 
WA_CCIHS_MJAPI_STR-MJVALFR sy-vline 
WA_CCIHS_MJAPI_STR-MJVALTO sy-vline 
WA_CCIHS_MJAPI_STR-MSRBGNDATE sy-vline 
WA_CCIHS_MJAPI_STR-MSRBGNTIME sy-vline 
WA_CCIHS_MJAPI_STR-MSRENDDATE sy-vline 
WA_CCIHS_MJAPI_STR-MSRENDTIME sy-vline 
WA_CCIHS_MJAPI_STR-MDURATION sy-vline 
WA_CCIHS_MJAPI_STR-MPLDURATION sy-vline 
WA_CCIHS_MJAPI_STR-MEXCHANGE sy-vline 
WA_CCIHS_MJAPI_STR-MSOURCEID sy-vline 
WA_CCIHS_MJAPI_STR-MSOURCENOTE sy-vline 
WA_CCIHS_MJAPI_STR-FIXLOCFLG sy-vline 
WA_CCIHS_MJAPI_STR-MPERIOD sy-vline 
WA_CCIHS_MJAPI_STR-FLOW sy-vline 
WA_CCIHS_MJAPI_STR-FLOWUNIT sy-vline 
WA_CCIHS_MJAPI_STR-DVNR sy-vline 
WA_CCIHS_MJAPI_STR-MDEVTYPE sy-vline 
WA_CCIHS_MJAPI_STR-METHOD sy-vline 
WA_CCIHS_MJAPI_STR-MPERSON sy-vline 
WA_CCIHS_MJAPI_STR-MPERSONGRP sy-vline 
WA_CCIHS_MJAPI_STR-MPERSONNAME sy-vline 
WA_CCIHS_MJAPI_STR-MJNOTE1 sy-vline 
WA_CCIHS_MJAPI_STR-MJNOTEFLG1 sy-vline 
WA_CCIHS_MJAPI_STR-MJNOTE2 sy-vline 
WA_CCIHS_MJAPI_STR-MJNOTEFLG2 sy-vline 
WA_CCIHS_MJAPI_STR-RESPIRATOR sy-vline 
WA_CCIHS_MJAPI_STR-SAMPLENR sy-vline 
WA_CCIHS_MJAPI_STR-MJCOSTAC sy-vline 
WA_CCIHS_MJAPI_STR-MJCTRAREA sy-vline 
WA_CCIHS_MJAPI_STR-RECNTMJ sy-vline 
WA_CCIHS_MJAPI_STR-LIMEXCEEDFLG sy-vline 
WA_CCIHS_MJAPI_STR-STMFLG sy-vline 
WA_CCIHS_MJAPI_STR-METCOASTS sy-vline 
WA_CCIHS_MJAPI_STR-METCUKY sy-vline 
WA_CCIHS_MJAPI_STR-VOLUME sy-vline 
WA_CCIHS_MJAPI_STR-VOLDECIMALS sy-vline 
WA_CCIHS_MJAPI_STR-MJCOCODE sy-vline 
WA_CCIHS_MJAPI_STR-FLGEXPLOCK sy-vline 
WA_CCIHS_MJAPI_STR-OPCOND sy-vline 
WA_CCIHS_MJAPI_STR-PLBEGDATE sy-vline 
WA_CCIHS_MJAPI_STR-PLENDDATE sy-vline 
WA_CCIHS_MJAPI_STR-MSRTEMP sy-vline 
WA_CCIHS_MJAPI_STR-MSRTEMPUNIT sy-vline 
WA_CCIHS_MJAPI_STR-AIRHUM sy-vline 
WA_CCIHS_MJAPI_STR-AIRHUMUNIT sy-vline 
WA_CCIHS_MJAPI_STR-AIRCOND sy-vline 
WA_CCIHS_MJAPI_STR-AIRCHNGRATE sy-vline 
WA_CCIHS_MJAPI_STR-PROTEQUI sy-vline 
WA_CCIHS_MJAPI_STR-FLG_NIGHT sy-vline 
WA_CCIHS_MJAPI_STR-PLBEGTIME sy-vline 
WA_CCIHS_MJAPI_STR-PLENDTIME sy-vline 
WA_CCIHS_MJAPI_STR-KEYDRAWNFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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