ABAP Select data from SAP table /GSINS/NLGBA_STR_SELSCR_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GSINS/NLGBA_STR_SELSCR_DATA
*  INTO TABLE @DATA(IT_/GSINS/NLGBA_STR_SELSCR_DATA2).
*--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_/GSINS/NLGBA_STR_SELSCR_DATA INDEX 1 INTO DATA(WA_/GSINS/NLGBA_STR_SELSCR_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GSINS/NLGBA_STR_SELSCR_DATA>-P_IMPORT = 1.
</GSINS/NLGBA_STR_SELSCR_DATA>-P_EXPORT = 1.
</GSINS/NLGBA_STR_SELSCR_DATA>-P_DISPLY = 1.
</GSINS/NLGBA_STR_SELSCR_DATA>-P_FILETY = 1.
</GSINS/NLGBA_STR_SELSCR_DATA>-P_FILOCL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GSINS/NLGBA_STR_SELSCR_DATA-P_FIAPPL, sy-vline,
  WA_/GSINS/NLGBA_STR_SELSCR_DATA-P_PARAM1, sy-vline,
  WA_/GSINS/NLGBA_STR_SELSCR_DATA-P_PARAM2, sy-vline,
  WA_/GSINS/NLGBA_STR_SELSCR_DATA-P_PARAM3, sy-vline,
  WA_/GSINS/NLGBA_STR_SELSCR_DATA-P_DESCRI, sy-vline,
  WA_/GSINS/NLGBA_STR_SELSCR_DATA-P_TESTRN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GSINS/NLGBA_STR_SELSCR_DATA 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_/GSINS/NLGBA_STR_SELSCR_DATA 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_/GSINS/NLGBA_STR_SELSCR_DATA INTO WA_/GSINS/NLGBA_STR_SELSCR_DATA.


*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 ALPHA, internal->external for field S_BP_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/GSINS/NLGBA_STR_SELSCR_DATA-S_BP_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GSINS/NLGBA_STR_SELSCR_DATA-S_BP_ID.
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_/GSINS/NLGBA_STR_SELSCR_DATA_STR, 
P_IMPORT TYPE STRING,
P_EXPORT TYPE STRING,
P_DISPLY TYPE STRING,
P_FILETY TYPE STRING,
P_FILOCL TYPE STRING,
P_FIAPPL TYPE STRING,
P_PARAM1 TYPE STRING,
P_PARAM2 TYPE STRING,
P_PARAM3 TYPE STRING,
P_DESCRI TYPE STRING,
P_TESTRN TYPE STRING,
P_LAYOUT TYPE STRING,
P_DIRECT TYPE STRING,
S_DATE TYPE STRING,
S_TIME TYPE STRING,
S_UNAME TYPE STRING,
S_MSGNO TYPE STRING,
S_MSGTY TYPE STRING,
S_A_NUM TYPE STRING,
S_USRID TYPE STRING,
S_MSGACT TYPE STRING,
S_APPST TYPE STRING,
S_BP_ID TYPE STRING,
S_CRUSR TYPE STRING,
S_CRDAT TYPE STRING,
S_CHUSR TYPE STRING,
S_CHDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GSINS/NLGBA_STR_SELSCR_DATA_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_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_IMPORT sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_EXPORT sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_DISPLY sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_FILETY sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_FILOCL sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_FIAPPL sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_PARAM1 sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_PARAM2 sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_PARAM3 sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_DESCRI sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_TESTRN sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_LAYOUT sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-P_DIRECT sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_DATE sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_TIME sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_UNAME sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_MSGNO sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_MSGTY sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_A_NUM sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_USRID sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_MSGACT sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_APPST sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_BP_ID sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_CRUSR sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_CRDAT sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_CHUSR sy-vline 
WA_/GSINS/NLGBA_STR_SELSCR_DATA_STR-S_CHDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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