ABAP Select data from SAP table /ISDFPS/SECSUNT_MAT_REQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/SECSUNT_MAT_REQ
*  INTO TABLE @DATA(IT_/ISDFPS/SECSUNT_MAT_REQ2).
*--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_/ISDFPS/SECSUNT_MAT_REQ INDEX 1 INTO DATA(WA_/ISDFPS/SECSUNT_MAT_REQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/SECSUNT_MAT_REQ>-PNGUID = 1.
</ISDFPS/SECSUNT_MAT_REQ>-PNAME = 1.
</ISDFPS/SECSUNT_MAT_REQ>-PNTEXT = 1.
</ISDFPS/SECSUNT_MAT_REQ>-OBJID = 1.
</ISDFPS/SECSUNT_MAT_REQ>-FORCENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/SECSUNT_MAT_REQ-FORCEDESCR, sy-vline,
  WA_/ISDFPS/SECSUNT_MAT_REQ-WERKS_S, sy-vline,
  WA_/ISDFPS/SECSUNT_MAT_REQ-BERID_S, sy-vline,
  WA_/ISDFPS/SECSUNT_MAT_REQ-LGORTACNT, sy-vline,
  WA_/ISDFPS/SECSUNT_MAT_REQ-WERKS_RE, sy-vline,
  WA_/ISDFPS/SECSUNT_MAT_REQ-BERID_RE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/SECSUNT_MAT_REQ 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_/ISDFPS/SECSUNT_MAT_REQ 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_/ISDFPS/SECSUNT_MAT_REQ INTO WA_/ISDFPS/SECSUNT_MAT_REQ.


*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 CUNIT, internal->external for field DOC_MEINS_S
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/SECSUNT_MAT_REQ-DOC_MEINS_S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/SECSUNT_MAT_REQ-DOC_MEINS_S.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MPO_MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/SECSUNT_MAT_REQ-MPO_MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/SECSUNT_MAT_REQ-MPO_MATNR.
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_/ISDFPS/SECSUNT_MAT_REQ_STR, 
PNGUID TYPE STRING,
PNAME TYPE STRING,
PNTEXT TYPE STRING,
OBJID TYPE STRING,
FORCENAME TYPE STRING,
FORCEDESCR TYPE STRING,
WERKS_S TYPE STRING,
BERID_S TYPE STRING,
LGORTACNT TYPE STRING,
WERKS_RE TYPE STRING,
BERID_RE TYPE STRING,
LGORT_RE TYPE STRING,
QUANT_MIN TYPE STRING,
QUAUTH TYPE STRING,
QUANT_MAX TYPE STRING,
QUTAR TYPE STRING,
QUADJ TYPE STRING,
CATLOG TYPE STRING,
CATLOGX TYPE STRING,
QUAUTH_FUNC TYPE STRING,
QUMC TYPE STRING,
QUMC_FUNC TYPE STRING,
QUINV TYPE STRING,
QUEQUI_INST TYPE STRING,
QUORD TYPE STRING,
QUPLN TYPE STRING,
QURES TYPE STRING,
QUDIF TYPE STRING,
SER_FLAG TYPE STRING,
CASE_TYPE TYPE STRING,
LIGHT TYPE STRING,
STATUSICON TYPE STRING,
MATQUAL TYPE STRING,
DOC_MEINS_S TYPE STRING,
DOC_MEINS_I TYPE STRING,
PNAME_EPA TYPE STRING,
MATNR_EPA TYPE STRING,
SORT_PNAME_EPA TYPE STRING,
SORT_MATNR_EPA TYPE STRING,
MASS_CREATION TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
REMARK TYPE STRING,
ASSIGN_STAT TYPE STRING,
WEIGHTING_FACTOR TYPE STRING,
REQUIRED TYPE STRING,
OBJID_S TYPE STRING,
OBJID_C TYPE STRING,
MPO_MATNR TYPE STRING,
MATQUAL_TYPE TYPE STRING,
RIC TYPE STRING,
RIC_TXT TYPE STRING,
NSN_ID TYPE STRING,
NSN_ID_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/SECSUNT_MAT_REQ_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_/ISDFPS/SECSUNT_MAT_REQ_STR-PNGUID sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-PNAME sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-PNTEXT sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-OBJID sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-FORCENAME sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-FORCEDESCR sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-WERKS_S sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-BERID_S sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-LGORTACNT sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-WERKS_RE sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-BERID_RE sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-LGORT_RE sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUANT_MIN sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUAUTH sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUANT_MAX sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUTAR sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUADJ sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-CATLOG sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-CATLOGX sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUAUTH_FUNC sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUMC sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUMC_FUNC sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUINV sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUEQUI_INST sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUORD sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUPLN sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QURES sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-QUDIF sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-SER_FLAG sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-CASE_TYPE sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-LIGHT sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-STATUSICON sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-MATQUAL sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-DOC_MEINS_S sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-DOC_MEINS_I sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-PNAME_EPA sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-MATNR_EPA sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-SORT_PNAME_EPA sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-SORT_MATNR_EPA sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-MASS_CREATION sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-VALID_FROM sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-VALID_TO sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-REMARK sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-ASSIGN_STAT sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-WEIGHTING_FACTOR sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-REQUIRED sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-OBJID_S sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-OBJID_C sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-MPO_MATNR sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-MATQUAL_TYPE sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-RIC sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-RIC_TXT sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-NSN_ID sy-vline 
WA_/ISDFPS/SECSUNT_MAT_REQ_STR-NSN_ID_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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