ABAP Select data from SAP table MCAFIHB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCAFIHB
*  INTO TABLE @DATA(IT_MCAFIHB2).
*--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_MCAFIHB INDEX 1 INTO DATA(WA_MCAFIHB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCAFIHB>-ROCANCEL = 1.
<MCAFIHB>-AUFNR = 1.
<MCAFIHB>-AUART = 1.
<MCAFIHB>-ILART = 1.
<MCAFIHB>-IPHAS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCAFIHB-PLKNZ, sy-vline,
  WA_MCAFIHB-AKKNZ, sy-vline,
  WA_MCAFIHB-OBJNR, sy-vline,
  WA_MCAFIHB-AUFPL, sy-vline,
  WA_MCAFIHB-PRIOK, sy-vline,
  WA_MCAFIHB-QMNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCAFIHB 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_MCAFIHB 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_MCAFIHB INTO WA_MCAFIHB.


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

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_MCAFIHB-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCAFIHB-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCAFIHB-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCAFIHB-LOGSYS.
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_MCAFIHB_STR, 
ROCANCEL TYPE STRING,
AUFNR TYPE STRING,
AUART TYPE STRING,
ILART TYPE STRING,
IPHAS TYPE STRING,
PLKNZ TYPE STRING,
AKKNZ TYPE STRING,
OBJNR TYPE STRING,
AUFPL TYPE STRING,
PRIOK TYPE STRING,
QMNUM TYPE STRING,
IWERK TYPE STRING,
INGRP TYPE STRING,
TPLNR TYPE STRING,
EQUNR TYPE STRING,
BAUTL_HD TYPE STRING,
PM_OBJTY TYPE STRING,
GEWRK TYPE STRING,
AWERK TYPE STRING,
VAPLZ TYPE STRING,
REVNR TYPE STRING,
ABCKZ TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
BEBER TYPE STRING,
MSGRP TYPE STRING,
GSBER TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
WARPL TYPE STRING,
WAPOS TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
KUNUM TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
GLTRP TYPE STRING,
GSTRP TYPE STRING,
FTRMS TYPE STRING,
GLTRS TYPE STRING,
GSTRS TYPE STRING,
GSTRI TYPE STRING,
GETRI TYPE STRING,
FTRMI TYPE STRING,
IDAT2 TYPE STRING,
ADDAT TYPE STRING,
ADUHR TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERFZEIT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
SYSTZ TYPE STRING,
EHTAG TYPE STRING,
ZHLAFIH TYPE STRING,
ZHLAFIH_OFFEN TYPE STRING,
ZHLAFIH_ABGS TYPE STRING,
ZHLAFIH_NDGEF TYPE STRING,
ZHLAFIH_TGERL TYPE STRING,
ZHLAFIH_SOF TYPE STRING,
ZHLAFIH_UNGPL TYPE STRING,
ZHLAFIH_GEPL TYPE STRING,
DLZNETTO TYPE STRING,
DLZBRUTTO TYPE STRING,
ASTTX TYPE STRING,
STTXT TYPE STRING,
GLUZS TYPE STRING,
GSUZS TYPE STRING,
GLUZP TYPE STRING,
GSUZP TYPE STRING,
GSUZI TYPE STRING,
GEUZI TYPE STRING,
ARM_SETUP TYPE STRING,
MODEL_ID TYPE STRING,
NUM_PERSONS TYPE STRING,
KRYPTOSTATUS TYPE STRING,
LANDING_LOC TYPE STRING,
CALL_SIGN TYPE STRING,
TIME_OVER_TARGET TYPE STRING,
TARGET_LOC TYPE STRING,
ZULU_TNZONE TYPE STRING,
START_TNZONE TYPE STRING,
START_DATE TYPE STRING,
LANDING_TNZONE TYPE STRING,
LANDING_DATE TYPE STRING,
FLIGHT_DURATION TYPE STRING,
FL_DURATION_UNIT TYPE STRING,
F_OBJNR TYPE STRING,
OPERATN_ID_GUID TYPE STRING,
OPERATN_ID_PLVAR TYPE STRING,
OPERATN_ID_OTYPE TYPE STRING,
OPERATN_ID_OBJID TYPE STRING,
OPERATION_CNT TYPE STRING,
MISSION TYPE STRING,
EXTERNAL_ID TYPE STRING,
LATEST_TAKE_OFF TYPE STRING,
LAUNCHING_PAD TYPE STRING,
STEXT TYPE STRING,
FORCE_CNT TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
ISFLIGHT TYPE STRING,
ESTAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCAFIHB_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_MCAFIHB_STR-ROCANCEL sy-vline 
WA_MCAFIHB_STR-AUFNR sy-vline 
WA_MCAFIHB_STR-AUART sy-vline 
WA_MCAFIHB_STR-ILART sy-vline 
WA_MCAFIHB_STR-IPHAS sy-vline 
WA_MCAFIHB_STR-PLKNZ sy-vline 
WA_MCAFIHB_STR-AKKNZ sy-vline 
WA_MCAFIHB_STR-OBJNR sy-vline 
WA_MCAFIHB_STR-AUFPL sy-vline 
WA_MCAFIHB_STR-PRIOK sy-vline 
WA_MCAFIHB_STR-QMNUM sy-vline 
WA_MCAFIHB_STR-IWERK sy-vline 
WA_MCAFIHB_STR-INGRP sy-vline 
WA_MCAFIHB_STR-TPLNR sy-vline 
WA_MCAFIHB_STR-EQUNR sy-vline 
WA_MCAFIHB_STR-BAUTL_HD sy-vline 
WA_MCAFIHB_STR-PM_OBJTY sy-vline 
WA_MCAFIHB_STR-GEWRK sy-vline 
WA_MCAFIHB_STR-AWERK sy-vline 
WA_MCAFIHB_STR-VAPLZ sy-vline 
WA_MCAFIHB_STR-REVNR sy-vline 
WA_MCAFIHB_STR-ABCKZ sy-vline 
WA_MCAFIHB_STR-SWERK sy-vline 
WA_MCAFIHB_STR-STORT sy-vline 
WA_MCAFIHB_STR-BEBER sy-vline 
WA_MCAFIHB_STR-MSGRP sy-vline 
WA_MCAFIHB_STR-GSBER sy-vline 
WA_MCAFIHB_STR-BUKRS sy-vline 
WA_MCAFIHB_STR-KOKRS sy-vline 
WA_MCAFIHB_STR-KOSTL sy-vline 
WA_MCAFIHB_STR-WARPL sy-vline 
WA_MCAFIHB_STR-WAPOS sy-vline 
WA_MCAFIHB_STR-VKORG sy-vline 
WA_MCAFIHB_STR-VTWEG sy-vline 
WA_MCAFIHB_STR-SPART sy-vline 
WA_MCAFIHB_STR-VKGRP sy-vline 
WA_MCAFIHB_STR-VKBUR sy-vline 
WA_MCAFIHB_STR-KUNUM sy-vline 
WA_MCAFIHB_STR-KDAUF sy-vline 
WA_MCAFIHB_STR-KDPOS sy-vline 
WA_MCAFIHB_STR-GLTRP sy-vline 
WA_MCAFIHB_STR-GSTRP sy-vline 
WA_MCAFIHB_STR-FTRMS sy-vline 
WA_MCAFIHB_STR-GLTRS sy-vline 
WA_MCAFIHB_STR-GSTRS sy-vline 
WA_MCAFIHB_STR-GSTRI sy-vline 
WA_MCAFIHB_STR-GETRI sy-vline 
WA_MCAFIHB_STR-FTRMI sy-vline 
WA_MCAFIHB_STR-IDAT2 sy-vline 
WA_MCAFIHB_STR-ADDAT sy-vline 
WA_MCAFIHB_STR-ADUHR sy-vline 
WA_MCAFIHB_STR-ERNAM sy-vline 
WA_MCAFIHB_STR-ERDAT sy-vline 
WA_MCAFIHB_STR-ERFZEIT sy-vline 
WA_MCAFIHB_STR-AENAM sy-vline 
WA_MCAFIHB_STR-AEDAT sy-vline 
WA_MCAFIHB_STR-AEZEIT sy-vline 
WA_MCAFIHB_STR-SYSTZ sy-vline 
WA_MCAFIHB_STR-EHTAG sy-vline 
WA_MCAFIHB_STR-ZHLAFIH sy-vline 
WA_MCAFIHB_STR-ZHLAFIH_OFFEN sy-vline 
WA_MCAFIHB_STR-ZHLAFIH_ABGS sy-vline 
WA_MCAFIHB_STR-ZHLAFIH_NDGEF sy-vline 
WA_MCAFIHB_STR-ZHLAFIH_TGERL sy-vline 
WA_MCAFIHB_STR-ZHLAFIH_SOF sy-vline 
WA_MCAFIHB_STR-ZHLAFIH_UNGPL sy-vline 
WA_MCAFIHB_STR-ZHLAFIH_GEPL sy-vline 
WA_MCAFIHB_STR-DLZNETTO sy-vline 
WA_MCAFIHB_STR-DLZBRUTTO sy-vline 
WA_MCAFIHB_STR-ASTTX sy-vline 
WA_MCAFIHB_STR-STTXT sy-vline 
WA_MCAFIHB_STR-GLUZS sy-vline 
WA_MCAFIHB_STR-GSUZS sy-vline 
WA_MCAFIHB_STR-GLUZP sy-vline 
WA_MCAFIHB_STR-GSUZP sy-vline 
WA_MCAFIHB_STR-GSUZI sy-vline 
WA_MCAFIHB_STR-GEUZI sy-vline 
WA_MCAFIHB_STR-ARM_SETUP sy-vline 
WA_MCAFIHB_STR-MODEL_ID sy-vline 
WA_MCAFIHB_STR-NUM_PERSONS sy-vline 
WA_MCAFIHB_STR-KRYPTOSTATUS sy-vline 
WA_MCAFIHB_STR-LANDING_LOC sy-vline 
WA_MCAFIHB_STR-CALL_SIGN sy-vline 
WA_MCAFIHB_STR-TIME_OVER_TARGET sy-vline 
WA_MCAFIHB_STR-TARGET_LOC sy-vline 
WA_MCAFIHB_STR-ZULU_TNZONE sy-vline 
WA_MCAFIHB_STR-START_TNZONE sy-vline 
WA_MCAFIHB_STR-START_DATE sy-vline 
WA_MCAFIHB_STR-LANDING_TNZONE sy-vline 
WA_MCAFIHB_STR-LANDING_DATE sy-vline 
WA_MCAFIHB_STR-FLIGHT_DURATION sy-vline 
WA_MCAFIHB_STR-FL_DURATION_UNIT sy-vline 
WA_MCAFIHB_STR-F_OBJNR sy-vline 
WA_MCAFIHB_STR-OPERATN_ID_GUID sy-vline 
WA_MCAFIHB_STR-OPERATN_ID_PLVAR sy-vline 
WA_MCAFIHB_STR-OPERATN_ID_OTYPE sy-vline 
WA_MCAFIHB_STR-OPERATN_ID_OBJID sy-vline 
WA_MCAFIHB_STR-OPERATION_CNT sy-vline 
WA_MCAFIHB_STR-MISSION sy-vline 
WA_MCAFIHB_STR-EXTERNAL_ID sy-vline 
WA_MCAFIHB_STR-LATEST_TAKE_OFF sy-vline 
WA_MCAFIHB_STR-LAUNCHING_PAD sy-vline 
WA_MCAFIHB_STR-STEXT sy-vline 
WA_MCAFIHB_STR-FORCE_CNT sy-vline 
WA_MCAFIHB_STR-CREADAT sy-vline 
WA_MCAFIHB_STR-CREABY sy-vline 
WA_MCAFIHB_STR-CHNGDAT sy-vline 
WA_MCAFIHB_STR-CHNGBY sy-vline 
WA_MCAFIHB_STR-LOGSYS sy-vline 
WA_MCAFIHB_STR-ISFLIGHT sy-vline 
WA_MCAFIHB_STR-ESTAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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