ABAP Select data from SAP table SAWE_STR_PSSU_1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SAWE_STR_PSSU_1 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 SAWE_STR_PSSU_1. 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 SAWE_STR_PSSU_1 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_SAWE_STR_PSSU_1 TYPE STANDARD TABLE OF SAWE_STR_PSSU_1,
      WA_SAWE_STR_PSSU_1 TYPE SAWE_STR_PSSU_1,
      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: <SAWE_STR_PSSU_1> TYPE SAWE_STR_PSSU_1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SAWE_STR_PSSU_1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SAWE_STR_PSSU_1
  INTO TABLE IT_SAWE_STR_PSSU_1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SAWE_STR_PSSU_1
*  INTO TABLE @DATA(IT_SAWE_STR_PSSU_12).
*--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_SAWE_STR_PSSU_1 INDEX 1 INTO DATA(WA_SAWE_STR_PSSU_12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SAWE_STR_PSSU_1 ASSIGNING <SAWE_STR_PSSU_1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SAWE_STR_PSSU_1>-DATE_ASSIGNMENT = 1.
<SAWE_STR_PSSU_1>-ORGEH = 1.
<SAWE_STR_PSSU_1>-QUALI_DESCRIPTION = 1.
<SAWE_STR_PSSU_1>-BOOKING_STATUS = 1.
<SAWE_STR_PSSU_1>-EXTERNAL_EMPL = 1.

ENDLOOP.

LOOP AT IT_SAWE_STR_PSSU_1 INTO WA_SAWE_STR_PSSU_1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SAWE_STR_PSSU_1-PERIOD1, sy-vline,
  WA_SAWE_STR_PSSU_1-PERIOD2, sy-vline,
  WA_SAWE_STR_PSSU_1-PERIOD3, sy-vline,
  WA_SAWE_STR_PSSU_1-PERIOD4, sy-vline,
  WA_SAWE_STR_PSSU_1-PERIOD5, sy-vline,
  WA_SAWE_STR_PSSU_1-PERIOD6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SAWE_STR_PSSU_1 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_SAWE_STR_PSSU_1 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_SAWE_STR_PSSU_1 INTO WA_SAWE_STR_PSSU_1.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_SAWE_STR_PSSU_1_STR, 
DATE_ASSIGNMENT TYPE STRING,
ORGEH TYPE STRING,
QUALI_DESCRIPTION TYPE STRING,
BOOKING_STATUS TYPE STRING,
EXTERNAL_EMPL TYPE STRING,
PERIOD1 TYPE STRING,
PERIOD2 TYPE STRING,
PERIOD3 TYPE STRING,
PERIOD4 TYPE STRING,
PERIOD5 TYPE STRING,
PERIOD6 TYPE STRING,
PERIOD7 TYPE STRING,
PERIOD8 TYPE STRING,
PERIOD9 TYPE STRING,
PERIOD10 TYPE STRING,
PERIOD11 TYPE STRING,
PERIOD12 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SAWE_STR_PSSU_1_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_SAWE_STR_PSSU_1_STR-DATE_ASSIGNMENT sy-vline 
WA_SAWE_STR_PSSU_1_STR-ORGEH sy-vline 
WA_SAWE_STR_PSSU_1_STR-QUALI_DESCRIPTION sy-vline 
WA_SAWE_STR_PSSU_1_STR-BOOKING_STATUS sy-vline 
WA_SAWE_STR_PSSU_1_STR-EXTERNAL_EMPL sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD1 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD2 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD3 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD4 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD5 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD6 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD7 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD8 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD9 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD10 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD11 sy-vline 
WA_SAWE_STR_PSSU_1_STR-PERIOD12 sy-vline      INTO ld_text SEPARATED BY SPACE.

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