ABAP Select data from SAP table /ACCGO/T_STLDPQS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/T_STLDPQS
*  INTO TABLE @DATA(IT_/ACCGO/T_STLDPQS2).
*--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_/ACCGO/T_STLDPQS INDEX 1 INTO DATA(WA_/ACCGO/T_STLDPQS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/T_STLDPQS>-MANDT = 1.
</ACCGO/T_STLDPQS>-STL_HEADER_GUID = 1.
</ACCGO/T_STLDPQS>-CHAR_GUID = 1.
</ACCGO/T_STLDPQS>-SEQUENCE_NO = 1.
</ACCGO/T_STLDPQS>-RANGE_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/T_STLDPQS-SCHEDULE_GUID, sy-vline,
  WA_/ACCGO/T_STLDPQS-DPQS_ID, sy-vline,
  WA_/ACCGO/T_STLDPQS-ATTRIBUTE, sy-vline,
  WA_/ACCGO/T_STLDPQS-ATTRIBUTE_VALUE, sy-vline,
  WA_/ACCGO/T_STLDPQS-ATTR_VAL, sy-vline,
  WA_/ACCGO/T_STLDPQS-ATTR_UOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/T_STLDPQS 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_/ACCGO/T_STLDPQS 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_/ACCGO/T_STLDPQS INTO WA_/ACCGO/T_STLDPQS.


*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 ATINN, internal->external for field ATTRIBUTE
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/T_STLDPQS-ATTRIBUTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/T_STLDPQS-ATTRIBUTE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ATINN, internal->external for field CHAR_ID
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/T_STLDPQS-CHAR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/T_STLDPQS-CHAR_ID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit EXCRT, internal->external for field FX_RATE_DI
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/T_STLDPQS-FX_RATE_DI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/T_STLDPQS-FX_RATE_DI.
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_/ACCGO/T_STLDPQS_STR, 
MANDT TYPE STRING,
STL_HEADER_GUID TYPE STRING,
CHAR_GUID TYPE STRING,
SEQUENCE_NO TYPE STRING,
RANGE_GUID TYPE STRING,
SCHEDULE_GUID TYPE STRING,
DPQS_ID TYPE STRING,
ATTRIBUTE TYPE STRING,
ATTRIBUTE_VALUE TYPE STRING,
ATTR_VAL TYPE STRING,
ATTR_UOM TYPE STRING,
CHAR_TYPE TYPE STRING,
CHAR_ID TYPE STRING,
QUANTITY_TYPE TYPE STRING,
CALC_METHOD TYPE STRING,
CALC_RULE TYPE STRING,
DERIVED_RULE TYPE STRING,
INCREMENT_VALUE TYPE STRING,
CHARGE_TYPE TYPE STRING,
RATE TYPE STRING,
RATE_TYPE TYPE STRING,
EVAL_VAL TYPE STRING,
ADJ_VAL TYPE STRING,
ADJUSTMENT TYPE STRING,
CURRENCY TYPE STRING,
LOCAL_ATNAM TYPE STRING,
APPLIES_TO TYPE STRING,
PER_UNIT TYPE STRING,
MIN_VALUE TYPE STRING,
MAX_VALUE TYPE STRING,
ACTION_CODE TYPE STRING,
CHAR_NEGOTIATE TYPE STRING,
DELETION_FLAG TYPE STRING,
STOP_SETTLE TYPE STRING,
ROUNDING_DIR TYPE STRING,
BASE_VALUE TYPE STRING,
ADJUSTMENT_TEXT TYPE STRING,
FX_RATE TYPE STRING,
FX_RATE_DI TYPE STRING,
TO_CURRENCY TYPE STRING,
QREP_VERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/T_STLDPQS_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_/ACCGO/T_STLDPQS_STR-MANDT sy-vline 
WA_/ACCGO/T_STLDPQS_STR-STL_HEADER_GUID sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CHAR_GUID sy-vline 
WA_/ACCGO/T_STLDPQS_STR-SEQUENCE_NO sy-vline 
WA_/ACCGO/T_STLDPQS_STR-RANGE_GUID sy-vline 
WA_/ACCGO/T_STLDPQS_STR-SCHEDULE_GUID sy-vline 
WA_/ACCGO/T_STLDPQS_STR-DPQS_ID sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ATTRIBUTE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ATTRIBUTE_VALUE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ATTR_VAL sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ATTR_UOM sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CHAR_TYPE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CHAR_ID sy-vline 
WA_/ACCGO/T_STLDPQS_STR-QUANTITY_TYPE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CALC_METHOD sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CALC_RULE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-DERIVED_RULE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-INCREMENT_VALUE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CHARGE_TYPE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-RATE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-RATE_TYPE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-EVAL_VAL sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ADJ_VAL sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ADJUSTMENT sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CURRENCY sy-vline 
WA_/ACCGO/T_STLDPQS_STR-LOCAL_ATNAM sy-vline 
WA_/ACCGO/T_STLDPQS_STR-APPLIES_TO sy-vline 
WA_/ACCGO/T_STLDPQS_STR-PER_UNIT sy-vline 
WA_/ACCGO/T_STLDPQS_STR-MIN_VALUE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-MAX_VALUE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ACTION_CODE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-CHAR_NEGOTIATE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-DELETION_FLAG sy-vline 
WA_/ACCGO/T_STLDPQS_STR-STOP_SETTLE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ROUNDING_DIR sy-vline 
WA_/ACCGO/T_STLDPQS_STR-BASE_VALUE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-ADJUSTMENT_TEXT sy-vline 
WA_/ACCGO/T_STLDPQS_STR-FX_RATE sy-vline 
WA_/ACCGO/T_STLDPQS_STR-FX_RATE_DI sy-vline 
WA_/ACCGO/T_STLDPQS_STR-TO_CURRENCY sy-vline 
WA_/ACCGO/T_STLDPQS_STR-QREP_VERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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