ABAP Select data from SAP table /SCMB/ALERTV7814 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCMB/ALERTV7814 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 /SCMB/ALERTV7814. 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 /SCMB/ALERTV7814 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_/SCMB/ALERTV7814 TYPE STANDARD TABLE OF /SCMB/ALERTV7814,
      WA_/SCMB/ALERTV7814 TYPE /SCMB/ALERTV7814,
      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: </SCMB/ALERTV7814> TYPE /SCMB/ALERTV7814.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SCMB/ALERTV7814.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCMB/ALERTV7814
  INTO TABLE IT_/SCMB/ALERTV7814.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMB/ALERTV7814
*  INTO TABLE @DATA(IT_/SCMB/ALERTV78142).
*--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_/SCMB/ALERTV7814 INDEX 1 INTO DATA(WA_/SCMB/ALERTV78142).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCMB/ALERTV7814 ASSIGNING </SCMB/ALERTV7814>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMB/ALERTV7814>-MANDT = 1.
</SCMB/ALERTV7814>-AID = 1.
</SCMB/ALERTV7814>-UNAME = 1.
</SCMB/ALERTV7814>-PRTID = 1.
</SCMB/ALERTV7814>-PLANNER = 1.

ENDLOOP.

LOOP AT IT_/SCMB/ALERTV7814 INTO WA_/SCMB/ALERTV7814.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMB/ALERTV7814-ATID, sy-vline,
  WA_/SCMB/ALERTV7814-ALNUM, sy-vline,
  WA_/SCMB/ALERTV7814-ALPUB, sy-vline,
  WA_/SCMB/ALERTV7814-ALPRIO, sy-vline,
  WA_/SCMB/ALERTV7814-ALVLDFR, sy-vline,
  WA_/SCMB/ALERTV7814-ALVLDTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMB/ALERTV7814 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_/SCMB/ALERTV7814 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_/SCMB/ALERTV7814 INTO WA_/SCMB/ALERTV7814.


*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 TSTPS, internal->external for field ALVLDFR
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALERTV7814-ALVLDFR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALERTV7814-ALVLDFR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ALVLDTO
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALERTV7814-ALVLDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALERTV7814-ALVLDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ALCRETST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALERTV7814-ALCRETST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALERTV7814-ALCRETST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ALCRETSTEXT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALERTV7814-ALCRETSTEXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALERTV7814-ALCRETSTEXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ALCHGTST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALERTV7814-ALCHGTST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALERTV7814-ALCHGTST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ALCHGTSTEXT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALERTV7814-ALCHGTSTEXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALERTV7814-ALCHGTSTEXT.
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_/SCMB/ALERTV7814_STR, 
MANDT TYPE STRING,
AID TYPE STRING,
UNAME TYPE STRING,
PRTID TYPE STRING,
PLANNER TYPE STRING,
ATID TYPE STRING,
ALNUM TYPE STRING,
ALPUB TYPE STRING,
ALPRIO TYPE STRING,
ALVLDFR TYPE STRING,
ALVLDTO TYPE STRING,
ALAPPLID TYPE STRING,
ALAPAR TYPE STRING,
ALVERIOID TYPE STRING,
ALKEY1 TYPE STRING,
ALKEY2 TYPE STRING,
ALSTATUS TYPE STRING,
ALURL TYPE STRING,
ALURLTEXT TYPE STRING,
ALCRETST TYPE STRING,
ALCRETSTEXT TYPE STRING,
ALCREUSR TYPE STRING,
ALCHGTST TYPE STRING,
ALCHGTSTEXT TYPE STRING,
ALCHGUSR TYPE STRING,
ALMSGID TYPE STRING,
ALMSGTYP TYPE STRING,
ALMSGNO TYPE STRING,
ALMSGV1 TYPE STRING,
ALMSGV2 TYPE STRING,
ALMSGV3 TYPE STRING,
ALMSGV4 TYPE STRING,
ALOBJCHG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMB/ALERTV7814_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_/SCMB/ALERTV7814_STR-MANDT sy-vline 
WA_/SCMB/ALERTV7814_STR-AID sy-vline 
WA_/SCMB/ALERTV7814_STR-UNAME sy-vline 
WA_/SCMB/ALERTV7814_STR-PRTID sy-vline 
WA_/SCMB/ALERTV7814_STR-PLANNER sy-vline 
WA_/SCMB/ALERTV7814_STR-ATID sy-vline 
WA_/SCMB/ALERTV7814_STR-ALNUM sy-vline 
WA_/SCMB/ALERTV7814_STR-ALPUB sy-vline 
WA_/SCMB/ALERTV7814_STR-ALPRIO sy-vline 
WA_/SCMB/ALERTV7814_STR-ALVLDFR sy-vline 
WA_/SCMB/ALERTV7814_STR-ALVLDTO sy-vline 
WA_/SCMB/ALERTV7814_STR-ALAPPLID sy-vline 
WA_/SCMB/ALERTV7814_STR-ALAPAR sy-vline 
WA_/SCMB/ALERTV7814_STR-ALVERIOID sy-vline 
WA_/SCMB/ALERTV7814_STR-ALKEY1 sy-vline 
WA_/SCMB/ALERTV7814_STR-ALKEY2 sy-vline 
WA_/SCMB/ALERTV7814_STR-ALSTATUS sy-vline 
WA_/SCMB/ALERTV7814_STR-ALURL sy-vline 
WA_/SCMB/ALERTV7814_STR-ALURLTEXT sy-vline 
WA_/SCMB/ALERTV7814_STR-ALCRETST sy-vline 
WA_/SCMB/ALERTV7814_STR-ALCRETSTEXT sy-vline 
WA_/SCMB/ALERTV7814_STR-ALCREUSR sy-vline 
WA_/SCMB/ALERTV7814_STR-ALCHGTST sy-vline 
WA_/SCMB/ALERTV7814_STR-ALCHGTSTEXT sy-vline 
WA_/SCMB/ALERTV7814_STR-ALCHGUSR sy-vline 
WA_/SCMB/ALERTV7814_STR-ALMSGID sy-vline 
WA_/SCMB/ALERTV7814_STR-ALMSGTYP sy-vline 
WA_/SCMB/ALERTV7814_STR-ALMSGNO sy-vline 
WA_/SCMB/ALERTV7814_STR-ALMSGV1 sy-vline 
WA_/SCMB/ALERTV7814_STR-ALMSGV2 sy-vline 
WA_/SCMB/ALERTV7814_STR-ALMSGV3 sy-vline 
WA_/SCMB/ALERTV7814_STR-ALMSGV4 sy-vline 
WA_/SCMB/ALERTV7814_STR-ALOBJCHG sy-vline      INTO ld_text SEPARATED BY SPACE.

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