ABAP Select data from SAP table PSMASTDATA into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PSMASTDATA 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 PSMASTDATA. 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 PSMASTDATA 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_PSMASTDATA TYPE STANDARD TABLE OF PSMASTDATA,
      WA_PSMASTDATA TYPE PSMASTDATA,
      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: <PSMASTDATA> TYPE PSMASTDATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSMASTDATA
*  INTO TABLE @DATA(IT_PSMASTDATA2).
*--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_PSMASTDATA INDEX 1 INTO DATA(WA_PSMASTDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSMASTDATA>-OBJNR = 1.
<PSMASTDATA>-KTEXT = 1.
<PSMASTDATA>-ERNAM = 1.
<PSMASTDATA>-ERDAT = 1.
<PSMASTDATA>-AENAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSMASTDATA-AEDAT, sy-vline,
  WA_PSMASTDATA-VERNR, sy-vline,
  WA_PSMASTDATA-VERNA, sy-vline,
  WA_PSMASTDATA-ASTNR, sy-vline,
  WA_PSMASTDATA-ASTNA, sy-vline,
  WA_PSMASTDATA-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSMASTDATA 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_PSMASTDATA 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_PSMASTDATA INTO WA_PSMASTDATA.


*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 OBJEX, internal->external for field OBJNR
CALL FUNCTION 'CONVERSION_EXIT_OBJEX_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-OBJNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-OBJNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field USE04
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-USE04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-USE04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field USE05
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-USE05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-USE05.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field SEL_PSPMAX
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-SEL_PSPMAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-SEL_PSPMAX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field SEL_PSPMIN
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-SEL_PSPMIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-SEL_PSPMIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field SEL_POSMAX
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-SEL_POSMAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-SEL_POSMAX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field SEL_POSMIN
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-SEL_POSMIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-SEL_POSMIN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SEL_NW_MIN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSMASTDATA-SEL_NW_MIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSMASTDATA-SEL_NW_MIN.
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_PSMASTDATA_STR, 
OBJNR TYPE STRING,
KTEXT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
VERNR TYPE STRING,
VERNA TYPE STRING,
ASTNR TYPE STRING,
ASTNA TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
PRCTR TYPE STRING,
OWAER TYPE STRING,
PLFAZ TYPE STRING,
PLSEZ TYPE STRING,
WERKS TYPE STRING,
KOSTL TYPE STRING,
KTRG TYPE STRING,
VNAME TYPE STRING,
RECID TYPE STRING,
ETYPE TYPE STRING,
JIBCL TYPE STRING,
JIBSA TYPE STRING,
SCOPE TYPE STRING,
XSTAT TYPE STRING,
TXJCD TYPE STRING,
ZSCHM TYPE STRING,
PRART TYPE STRING,
STUFE TYPE STRING,
AKOKR TYPE STRING,
AKSTL TYPE STRING,
FKOKR TYPE STRING,
FKSTL TYPE STRING,
SUBPR TYPE STRING,
USR00 TYPE STRING,
USR01 TYPE STRING,
USR02 TYPE STRING,
USR03 TYPE STRING,
USR04 TYPE STRING,
USE04 TYPE STRING,
USR05 TYPE STRING,
USE05 TYPE STRING,
USR06 TYPE STRING,
USE06 TYPE STRING,
USR07 TYPE STRING,
USE07 TYPE STRING,
USR08 TYPE STRING,
USR09 TYPE STRING,
USR10 TYPE STRING,
USR11 TYPE STRING,
SEL_PSPMAX TYPE STRING,
SEL_PSPMIN TYPE STRING,
SEL_PSPFLG TYPE STRING,
SEL_POSMAX TYPE STRING,
SEL_POSMIN TYPE STRING,
SEL_POSFLG TYPE STRING,
SEL_NW_MAX TYPE STRING,
SEL_NW_MIN TYPE STRING,
SEL_NW_FLG TYPE STRING,
SEL_VARIANTE TYPE STRING,
SEL_PROFID TYPE STRING,
SEL_DB_VIEW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSMASTDATA_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_PSMASTDATA_STR-OBJNR sy-vline 
WA_PSMASTDATA_STR-KTEXT sy-vline 
WA_PSMASTDATA_STR-ERNAM sy-vline 
WA_PSMASTDATA_STR-ERDAT sy-vline 
WA_PSMASTDATA_STR-AENAM sy-vline 
WA_PSMASTDATA_STR-AEDAT sy-vline 
WA_PSMASTDATA_STR-VERNR sy-vline 
WA_PSMASTDATA_STR-VERNA sy-vline 
WA_PSMASTDATA_STR-ASTNR sy-vline 
WA_PSMASTDATA_STR-ASTNA sy-vline 
WA_PSMASTDATA_STR-BUKRS sy-vline 
WA_PSMASTDATA_STR-GSBER sy-vline 
WA_PSMASTDATA_STR-KOKRS sy-vline 
WA_PSMASTDATA_STR-PRCTR sy-vline 
WA_PSMASTDATA_STR-OWAER sy-vline 
WA_PSMASTDATA_STR-PLFAZ sy-vline 
WA_PSMASTDATA_STR-PLSEZ sy-vline 
WA_PSMASTDATA_STR-WERKS sy-vline 
WA_PSMASTDATA_STR-KOSTL sy-vline 
WA_PSMASTDATA_STR-KTRG sy-vline 
WA_PSMASTDATA_STR-VNAME sy-vline 
WA_PSMASTDATA_STR-RECID sy-vline 
WA_PSMASTDATA_STR-ETYPE sy-vline 
WA_PSMASTDATA_STR-JIBCL sy-vline 
WA_PSMASTDATA_STR-JIBSA sy-vline 
WA_PSMASTDATA_STR-SCOPE sy-vline 
WA_PSMASTDATA_STR-XSTAT sy-vline 
WA_PSMASTDATA_STR-TXJCD sy-vline 
WA_PSMASTDATA_STR-ZSCHM sy-vline 
WA_PSMASTDATA_STR-PRART sy-vline 
WA_PSMASTDATA_STR-STUFE sy-vline 
WA_PSMASTDATA_STR-AKOKR sy-vline 
WA_PSMASTDATA_STR-AKSTL sy-vline 
WA_PSMASTDATA_STR-FKOKR sy-vline 
WA_PSMASTDATA_STR-FKSTL sy-vline 
WA_PSMASTDATA_STR-SUBPR sy-vline 
WA_PSMASTDATA_STR-USR00 sy-vline 
WA_PSMASTDATA_STR-USR01 sy-vline 
WA_PSMASTDATA_STR-USR02 sy-vline 
WA_PSMASTDATA_STR-USR03 sy-vline 
WA_PSMASTDATA_STR-USR04 sy-vline 
WA_PSMASTDATA_STR-USE04 sy-vline 
WA_PSMASTDATA_STR-USR05 sy-vline 
WA_PSMASTDATA_STR-USE05 sy-vline 
WA_PSMASTDATA_STR-USR06 sy-vline 
WA_PSMASTDATA_STR-USE06 sy-vline 
WA_PSMASTDATA_STR-USR07 sy-vline 
WA_PSMASTDATA_STR-USE07 sy-vline 
WA_PSMASTDATA_STR-USR08 sy-vline 
WA_PSMASTDATA_STR-USR09 sy-vline 
WA_PSMASTDATA_STR-USR10 sy-vline 
WA_PSMASTDATA_STR-USR11 sy-vline 
WA_PSMASTDATA_STR-SEL_PSPMAX sy-vline 
WA_PSMASTDATA_STR-SEL_PSPMIN sy-vline 
WA_PSMASTDATA_STR-SEL_PSPFLG sy-vline 
WA_PSMASTDATA_STR-SEL_POSMAX sy-vline 
WA_PSMASTDATA_STR-SEL_POSMIN sy-vline 
WA_PSMASTDATA_STR-SEL_POSFLG sy-vline 
WA_PSMASTDATA_STR-SEL_NW_MAX sy-vline 
WA_PSMASTDATA_STR-SEL_NW_MIN sy-vline 
WA_PSMASTDATA_STR-SEL_NW_FLG sy-vline 
WA_PSMASTDATA_STR-SEL_VARIANTE sy-vline 
WA_PSMASTDATA_STR-SEL_PROFID sy-vline 
WA_PSMASTDATA_STR-SEL_DB_VIEW sy-vline      INTO ld_text SEPARATED BY SPACE.

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