ABAP Select data from SAP table /SCA/BWX_ALERT_STR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCA/BWX_ALERT_STR
*  INTO TABLE @DATA(IT_/SCA/BWX_ALERT_STR2).
*--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_/SCA/BWX_ALERT_STR INDEX 1 INTO DATA(WA_/SCA/BWX_ALERT_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCA/BWX_ALERT_STR>-MANDT = 1.
</SCA/BWX_ALERT_STR>-AID = 1.
</SCA/BWX_ALERT_STR>-ATID = 1.
</SCA/BWX_ALERT_STR>-ALNUM = 1.
</SCA/BWX_ALERT_STR>-ALPRIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCA/BWX_ALERT_STR-ALVLDFR_TIMES, sy-vline,
  WA_/SCA/BWX_ALERT_STR-ALVLDFR_DATS, sy-vline,
  WA_/SCA/BWX_ALERT_STR-ALVLDTO_TIMES, sy-vline,
  WA_/SCA/BWX_ALERT_STR-ALVLDTO_DATS, sy-vline,
  WA_/SCA/BWX_ALERT_STR-ALAPPLID, sy-vline,
  WA_/SCA/BWX_ALERT_STR-ALAPAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCA/BWX_ALERT_STR 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_/SCA/BWX_ALERT_STR 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_/SCA/BWX_ALERT_STR INTO WA_/SCA/BWX_ALERT_STR.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/BWX_ALERT_STR-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/BWX_ALERT_STR-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PARTNERTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/BWX_ALERT_STR-PARTNERTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/BWX_ALERT_STR-PARTNERTO.
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_/SCA/BWX_ALERT_STR_STR, 
MANDT TYPE STRING,
AID TYPE STRING,
ATID TYPE STRING,
ALNUM TYPE STRING,
ALPRIO TYPE STRING,
ALVLDFR_TIMES TYPE STRING,
ALVLDFR_DATS TYPE STRING,
ALVLDTO_TIMES TYPE STRING,
ALVLDTO_DATS TYPE STRING,
ALAPPLID TYPE STRING,
ALAPAR TYPE STRING,
ALURL TYPE STRING,
ALURLTEXT TYPE STRING,
ALCRETST_TIMES TYPE STRING,
ALCRETST_DATS TYPE STRING,
ALMSGID TYPE STRING,
ALMSGTYPE TYPE STRING,
ALMSGNO TYPE STRING,
ALMSGTEXT TYPE STRING,
ACK TYPE STRING,
ACKTST_TIMES TYPE STRING,
ACKTST_DATS TYPE STRING,
UNAME TYPE STRING,
MATNR TYPE STRING,
LOCFR TYPE STRING,
LOCTO TYPE STRING,
PARTNERFR TYPE STRING,
PARTNERTO TYPE STRING,
RODMUPDMOD TYPE STRING,
PLANNER TYPE STRING,
ALCOUNTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCA/BWX_ALERT_STR_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_/SCA/BWX_ALERT_STR_STR-MANDT sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-AID sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ATID sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALNUM sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALPRIO sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALVLDFR_TIMES sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALVLDFR_DATS sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALVLDTO_TIMES sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALVLDTO_DATS sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALAPPLID sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALAPAR sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALURL sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALURLTEXT sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALCRETST_TIMES sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALCRETST_DATS sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALMSGID sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALMSGTYPE sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALMSGNO sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALMSGTEXT sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ACK sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ACKTST_TIMES sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ACKTST_DATS sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-UNAME sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-MATNR sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-LOCFR sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-LOCTO sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-PARTNERFR sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-PARTNERTO sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-RODMUPDMOD sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-PLANNER sy-vline 
WA_/SCA/BWX_ALERT_STR_STR-ALCOUNTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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