ABAP Select data from SAP table CATS_MY_STR_FIELDS_UPPER_CASE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CATS_MY_STR_FIELDS_UPPER_CASE
*  INTO TABLE @DATA(IT_CATS_MY_STR_FIELDS_UPPER_CASE2).
*--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_CATS_MY_STR_FIELDS_UPPER_CASE INDEX 1 INTO DATA(WA_CATS_MY_STR_FIELDS_UPPER_CASE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CATS_MY_STR_FIELDS_UPPER_CASE>-SKOSTL = 1.
<CATS_MY_STR_FIELDS_UPPER_CASE>-LSTAR = 1.
<CATS_MY_STR_FIELDS_UPPER_CASE>-SEBELN = 1.
<CATS_MY_STR_FIELDS_UPPER_CASE>-SEBELP = 1.
<CATS_MY_STR_FIELDS_UPPER_CASE>-SPRZNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CATS_MY_STR_FIELDS_UPPER_CASE-LSTNR, sy-vline,
  WA_CATS_MY_STR_FIELDS_UPPER_CASE-RKOSTL, sy-vline,
  WA_CATS_MY_STR_FIELDS_UPPER_CASE-RPROJ, sy-vline,
  WA_CATS_MY_STR_FIELDS_UPPER_CASE-RAUFNR, sy-vline,
  WA_CATS_MY_STR_FIELDS_UPPER_CASE-RNPLNR, sy-vline,
  WA_CATS_MY_STR_FIELDS_UPPER_CASE-RAUFPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CATS_MY_STR_FIELDS_UPPER_CASE 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_CATS_MY_STR_FIELDS_UPPER_CASE 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_CATS_MY_STR_FIELDS_UPPER_CASE INTO WA_CATS_MY_STR_FIELDS_UPPER_CASE.


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

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

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

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

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

*Conversion exit ABPSP, internal->external for field RPROJ
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CATS_MY_STR_FIELDS_UPPER_CASE-RPROJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATS_MY_STR_FIELDS_UPPER_CASE-RPROJ.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CATS_MY_STR_FIELDS_UPPER_CASE-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATS_MY_STR_FIELDS_UPPER_CASE-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CATS_MY_STR_FIELDS_UPPER_CASE-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATS_MY_STR_FIELDS_UPPER_CASE-UVORN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_CATS_MY_STR_FIELDS_UPPER_CASE-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATS_MY_STR_FIELDS_UPPER_CASE-POSID.
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_CATS_MY_STR_FIELDS_UPPER_CASE_STR, 
SKOSTL TYPE STRING,
LSTAR TYPE STRING,
SEBELN TYPE STRING,
SEBELP TYPE STRING,
SPRZNR TYPE STRING,
LSTNR TYPE STRING,
RKOSTL TYPE STRING,
RPROJ TYPE STRING,
RAUFNR TYPE STRING,
RNPLNR TYPE STRING,
RAUFPL TYPE STRING,
RAPLZL TYPE STRING,
RKDAUF TYPE STRING,
RKDPOS TYPE STRING,
RKSTR TYPE STRING,
RPRZNR TYPE STRING,
PAOBJNR TYPE STRING,
AWART TYPE STRING,
LGART TYPE STRING,
KAPID TYPE STRING,
REINR TYPE STRING,
WABLNR TYPE STRING,
VERSL TYPE STRING,
WTART TYPE STRING,
WAERS TYPE STRING,
AUFKZ TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
PRAKN TYPE STRING,
PRAKZ TYPE STRING,
OTYPE TYPE STRING,
PLANS TYPE STRING,
KOKRS TYPE STRING,
MEINH TYPE STRING,
TCURR TYPE STRING,
ARBID TYPE STRING,
WERKS TYPE STRING,
AUTYP TYPE STRING,
HRCOSTASG TYPE STRING,
HRLSTAR TYPE STRING,
BEMOT TYPE STRING,
UNIT TYPE STRING,
STATKEYFIG TYPE STRING,
TASKTYPE TYPE STRING,
TASKLEVEL TYPE STRING,
TASKCOMPONENT TYPE STRING,
BUKRS TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
BEDID TYPE STRING,
KAPAR TYPE STRING,
ARBPL TYPE STRING,
POSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CATS_MY_STR_FIELDS_UPPER_CASE_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_CATS_MY_STR_FIELDS_UPPER_CASE_STR-SKOSTL sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-LSTAR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-SEBELN sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-SEBELP sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-SPRZNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-LSTNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RKOSTL sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RPROJ sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RAUFNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RNPLNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RAUFPL sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RAPLZL sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RKDAUF sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RKDPOS sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RKSTR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-RPRZNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-PAOBJNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-AWART sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-LGART sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-KAPID sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-REINR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-WABLNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-VERSL sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-WTART sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-WAERS sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-AUFKZ sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-TRFGR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-TRFST sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-PRAKN sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-PRAKZ sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-OTYPE sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-PLANS sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-KOKRS sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-MEINH sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-TCURR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-ARBID sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-WERKS sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-AUTYP sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-HRCOSTASG sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-HRLSTAR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-BEMOT sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-UNIT sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-STATKEYFIG sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-TASKTYPE sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-TASKLEVEL sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-TASKCOMPONENT sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-BUKRS sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-VORNR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-UVORN sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-BEDID sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-KAPAR sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-ARBPL sy-vline 
WA_CATS_MY_STR_FIELDS_UPPER_CASE_STR-POSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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