ABAP Select data from SAP table /TDAG/CPS_MASTB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /TDAG/CPS_MASTB 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 /TDAG/CPS_MASTB. 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 /TDAG/CPS_MASTB 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_/TDAG/CPS_MASTB TYPE STANDARD TABLE OF /TDAG/CPS_MASTB,
      WA_/TDAG/CPS_MASTB TYPE /TDAG/CPS_MASTB,
      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: </TDAG/CPS_MASTB> TYPE /TDAG/CPS_MASTB.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /TDAG/CPS_MASTB
  INTO TABLE IT_/TDAG/CPS_MASTB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /TDAG/CPS_MASTB
*  INTO TABLE @DATA(IT_/TDAG/CPS_MASTB2).
*--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_/TDAG/CPS_MASTB INDEX 1 INTO DATA(WA_/TDAG/CPS_MASTB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/TDAG/CPS_MASTB ASSIGNING </TDAG/CPS_MASTB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</TDAG/CPS_MASTB>-MANDT = 1.
</TDAG/CPS_MASTB>-MATNR = 1.
</TDAG/CPS_MASTB>-WERKS = 1.
</TDAG/CPS_MASTB>-STLAN = 1.
</TDAG/CPS_MASTB>-STLNR = 1.

ENDLOOP.

LOOP AT IT_/TDAG/CPS_MASTB INTO WA_/TDAG/CPS_MASTB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/TDAG/CPS_MASTB-STLAL, sy-vline,
  WA_/TDAG/CPS_MASTB-LOSVN, sy-vline,
  WA_/TDAG/CPS_MASTB-LOSBS, sy-vline,
  WA_/TDAG/CPS_MASTB-ANDAT, sy-vline,
  WA_/TDAG/CPS_MASTB-ANNAM, sy-vline,
  WA_/TDAG/CPS_MASTB-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/TDAG/CPS_MASTB 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_/TDAG/CPS_MASTB 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_/TDAG/CPS_MASTB INTO WA_/TDAG/CPS_MASTB.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/TDAG/CPS_MASTB-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/TDAG/CPS_MASTB-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/TDAG/CPS_MASTB-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/TDAG/CPS_MASTB-CUSTOMER.
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_/TDAG/CPS_MASTB_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
STLAN TYPE STRING,
STLNR TYPE STRING,
STLAL TYPE STRING,
LOSVN TYPE STRING,
LOSBS TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
CSLTY TYPE STRING,
VBKZ TYPE STRING,
AUSKZ TYPE STRING,
SELKZ TYPE STRING,
SUPPLIER TYPE STRING,
SUP_MPN TYPE STRING,
PREF_SUP TYPE STRING,
LOW_LEVEL TYPE STRING,
PMATNR TYPE STRING,
SUP_NAME TYPE STRING,
ORIGIN TYPE STRING,
SUP_LIST TYPE STRING,
CUS_LIST TYPE STRING,
CUSTOMER TYPE STRING,
CUS_NAME TYPE STRING,
CP_NUM TYPE STRING,
CP_NAM TYPE STRING,
ADDINF1 TYPE STRING,
ADDINF2 TYPE STRING,
ADDINF3 TYPE STRING,
ADDINF4 TYPE STRING,
ADDINF5 TYPE STRING,
ADDINF6 TYPE STRING,
ADDINF7 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/TDAG/CPS_MASTB_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_/TDAG/CPS_MASTB_STR-MANDT sy-vline 
WA_/TDAG/CPS_MASTB_STR-MATNR sy-vline 
WA_/TDAG/CPS_MASTB_STR-WERKS sy-vline 
WA_/TDAG/CPS_MASTB_STR-STLAN sy-vline 
WA_/TDAG/CPS_MASTB_STR-STLNR sy-vline 
WA_/TDAG/CPS_MASTB_STR-STLAL sy-vline 
WA_/TDAG/CPS_MASTB_STR-LOSVN sy-vline 
WA_/TDAG/CPS_MASTB_STR-LOSBS sy-vline 
WA_/TDAG/CPS_MASTB_STR-ANDAT sy-vline 
WA_/TDAG/CPS_MASTB_STR-ANNAM sy-vline 
WA_/TDAG/CPS_MASTB_STR-AEDAT sy-vline 
WA_/TDAG/CPS_MASTB_STR-AENAM sy-vline 
WA_/TDAG/CPS_MASTB_STR-CSLTY sy-vline 
WA_/TDAG/CPS_MASTB_STR-VBKZ sy-vline 
WA_/TDAG/CPS_MASTB_STR-AUSKZ sy-vline 
WA_/TDAG/CPS_MASTB_STR-SELKZ sy-vline 
WA_/TDAG/CPS_MASTB_STR-SUPPLIER sy-vline 
WA_/TDAG/CPS_MASTB_STR-SUP_MPN sy-vline 
WA_/TDAG/CPS_MASTB_STR-PREF_SUP sy-vline 
WA_/TDAG/CPS_MASTB_STR-LOW_LEVEL sy-vline 
WA_/TDAG/CPS_MASTB_STR-PMATNR sy-vline 
WA_/TDAG/CPS_MASTB_STR-SUP_NAME sy-vline 
WA_/TDAG/CPS_MASTB_STR-ORIGIN sy-vline 
WA_/TDAG/CPS_MASTB_STR-SUP_LIST sy-vline 
WA_/TDAG/CPS_MASTB_STR-CUS_LIST sy-vline 
WA_/TDAG/CPS_MASTB_STR-CUSTOMER sy-vline 
WA_/TDAG/CPS_MASTB_STR-CUS_NAME sy-vline 
WA_/TDAG/CPS_MASTB_STR-CP_NUM sy-vline 
WA_/TDAG/CPS_MASTB_STR-CP_NAM sy-vline 
WA_/TDAG/CPS_MASTB_STR-ADDINF1 sy-vline 
WA_/TDAG/CPS_MASTB_STR-ADDINF2 sy-vline 
WA_/TDAG/CPS_MASTB_STR-ADDINF3 sy-vline 
WA_/TDAG/CPS_MASTB_STR-ADDINF4 sy-vline 
WA_/TDAG/CPS_MASTB_STR-ADDINF5 sy-vline 
WA_/TDAG/CPS_MASTB_STR-ADDINF6 sy-vline 
WA_/TDAG/CPS_MASTB_STR-ADDINF7 sy-vline      INTO ld_text SEPARATED BY SPACE.

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