ABAP Select data from SAP table SXMSMSGLST into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SXMSMSGLST 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 SXMSMSGLST. 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 SXMSMSGLST 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_SXMSMSGLST TYPE STANDARD TABLE OF SXMSMSGLST,
      WA_SXMSMSGLST TYPE SXMSMSGLST,
      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: <SXMSMSGLST> TYPE SXMSMSGLST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SXMSMSGLST
*  INTO TABLE @DATA(IT_SXMSMSGLST2).
*--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_SXMSMSGLST INDEX 1 INTO DATA(WA_SXMSMSGLST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SXMSMSGLST>-MANDT = 1.
<SXMSMSGLST>-MSGGUID = 1.
<SXMSMSGLST>-PID = 1.
<SXMSMSGLST>-MSGTYPE = 1.
<SXMSMSGLST>-MSGSTATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SXMSMSGLST-QOSMODE, sy-vline,
  WA_SXMSMSGLST-EXETIMEST, sy-vline,
  WA_SXMSMSGLST-INITTIMEST, sy-vline,
  WA_SXMSMSGLST-SENDTIMEST, sy-vline,
  WA_SXMSMSGLST-SNDRGUID, sy-vline,
  WA_SXMSMSGLST-QUEUEGUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SXMSMSGLST 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_SXMSMSGLST 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_SXMSMSGLST INTO WA_SXMSMSGLST.


*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_SXMSMSGLST_STR, 
MANDT TYPE STRING,
MSGGUID TYPE STRING,
PID TYPE STRING,
MSGTYPE TYPE STRING,
MSGSTATE TYPE STRING,
QOSMODE TYPE STRING,
EXETIMEST TYPE STRING,
INITTIMEST TYPE STRING,
SENDTIMEST TYPE STRING,
SNDRGUID TYPE STRING,
QUEUEGUID TYPE STRING,
EO_REFID TYPE STRING,
EO_REFVAL TYPE STRING,
ADAPT_TYP TYPE STRING,
ADAPT_STAT TYPE STRING,
PARENTMSG TYPE STRING,
CHILDCOUNT TYPE STRING,
CLIENT TYPE STRING,
ADMINUSER TYPE STRING,
GEN_ENTRY TYPE STRING,
MANUALSTAT TYPE STRING,
RETRYCOUNT TYPE STRING,
ITFACTION TYPE STRING,
COMMITACT TYPE STRING,
EO_REFID_I TYPE STRING,
EO_REFVL_I TYPE STRING,
ADAPT_TP_I TYPE STRING,
REST_VERS TYPE STRING,
EO_REFID_O TYPE STRING,
EO_REFVL_O TYPE STRING,
QUEUEINT TYPE STRING,
REF_TO_MSG TYPE STRING,
REF_TO_REC_MSG TYPE STRING,
ACK_STATE TYPE STRING,
REORG TYPE STRING,
RND_NUMBER TYPE STRING,
VERS TYPE STRING,
SECURITY TYPE STRING,
WS_HASH_CODE TYPE STRING,
RETRYCOUNT_MAN TYPE STRING,
USERINFOSTORAGE TYPE STRING,
USERINFODATA TYPE STRING,
MSG_SIZE TYPE STRING,
BULK_ERROR TYPE STRING,
HOST TYPE STRING,
OB_SYSTEM TYPE STRING,
OB_NS TYPE STRING,
OB_NAME TYPE STRING,
OB_PARTY TYPE STRING,
OB_PARTY_TYPE TYPE STRING,
OB_PARTY_AGENCY TYPE STRING,
OB_OPERATION TYPE STRING,
IB_SYSTEM TYPE STRING,
IB_NS TYPE STRING,
IB_NAME TYPE STRING,
IB_PARTY TYPE STRING,
IB_PARTY_TYPE TYPE STRING,
IB_PARTY_AGENCY TYPE STRING,
IB_OPERATION TYPE STRING,
JOB_ID TYPE STRING,
STATUS TYPE STRING,
ERRCAT TYPE STRING,
ERRCODE TYPE STRING,
ERRLABEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SXMSMSGLST_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_SXMSMSGLST_STR-MANDT sy-vline 
WA_SXMSMSGLST_STR-MSGGUID sy-vline 
WA_SXMSMSGLST_STR-PID sy-vline 
WA_SXMSMSGLST_STR-MSGTYPE sy-vline 
WA_SXMSMSGLST_STR-MSGSTATE sy-vline 
WA_SXMSMSGLST_STR-QOSMODE sy-vline 
WA_SXMSMSGLST_STR-EXETIMEST sy-vline 
WA_SXMSMSGLST_STR-INITTIMEST sy-vline 
WA_SXMSMSGLST_STR-SENDTIMEST sy-vline 
WA_SXMSMSGLST_STR-SNDRGUID sy-vline 
WA_SXMSMSGLST_STR-QUEUEGUID sy-vline 
WA_SXMSMSGLST_STR-EO_REFID sy-vline 
WA_SXMSMSGLST_STR-EO_REFVAL sy-vline 
WA_SXMSMSGLST_STR-ADAPT_TYP sy-vline 
WA_SXMSMSGLST_STR-ADAPT_STAT sy-vline 
WA_SXMSMSGLST_STR-PARENTMSG sy-vline 
WA_SXMSMSGLST_STR-CHILDCOUNT sy-vline 
WA_SXMSMSGLST_STR-CLIENT sy-vline 
WA_SXMSMSGLST_STR-ADMINUSER sy-vline 
WA_SXMSMSGLST_STR-GEN_ENTRY sy-vline 
WA_SXMSMSGLST_STR-MANUALSTAT sy-vline 
WA_SXMSMSGLST_STR-RETRYCOUNT sy-vline 
WA_SXMSMSGLST_STR-ITFACTION sy-vline 
WA_SXMSMSGLST_STR-COMMITACT sy-vline 
WA_SXMSMSGLST_STR-EO_REFID_I sy-vline 
WA_SXMSMSGLST_STR-EO_REFVL_I sy-vline 
WA_SXMSMSGLST_STR-ADAPT_TP_I sy-vline 
WA_SXMSMSGLST_STR-REST_VERS sy-vline 
WA_SXMSMSGLST_STR-EO_REFID_O sy-vline 
WA_SXMSMSGLST_STR-EO_REFVL_O sy-vline 
WA_SXMSMSGLST_STR-QUEUEINT sy-vline 
WA_SXMSMSGLST_STR-REF_TO_MSG sy-vline 
WA_SXMSMSGLST_STR-REF_TO_REC_MSG sy-vline 
WA_SXMSMSGLST_STR-ACK_STATE sy-vline 
WA_SXMSMSGLST_STR-REORG sy-vline 
WA_SXMSMSGLST_STR-RND_NUMBER sy-vline 
WA_SXMSMSGLST_STR-VERS sy-vline 
WA_SXMSMSGLST_STR-SECURITY sy-vline 
WA_SXMSMSGLST_STR-WS_HASH_CODE sy-vline 
WA_SXMSMSGLST_STR-RETRYCOUNT_MAN sy-vline 
WA_SXMSMSGLST_STR-USERINFOSTORAGE sy-vline 
WA_SXMSMSGLST_STR-USERINFODATA sy-vline 
WA_SXMSMSGLST_STR-MSG_SIZE sy-vline 
WA_SXMSMSGLST_STR-BULK_ERROR sy-vline 
WA_SXMSMSGLST_STR-HOST sy-vline 
WA_SXMSMSGLST_STR-OB_SYSTEM sy-vline 
WA_SXMSMSGLST_STR-OB_NS sy-vline 
WA_SXMSMSGLST_STR-OB_NAME sy-vline 
WA_SXMSMSGLST_STR-OB_PARTY sy-vline 
WA_SXMSMSGLST_STR-OB_PARTY_TYPE sy-vline 
WA_SXMSMSGLST_STR-OB_PARTY_AGENCY sy-vline 
WA_SXMSMSGLST_STR-OB_OPERATION sy-vline 
WA_SXMSMSGLST_STR-IB_SYSTEM sy-vline 
WA_SXMSMSGLST_STR-IB_NS sy-vline 
WA_SXMSMSGLST_STR-IB_NAME sy-vline 
WA_SXMSMSGLST_STR-IB_PARTY sy-vline 
WA_SXMSMSGLST_STR-IB_PARTY_TYPE sy-vline 
WA_SXMSMSGLST_STR-IB_PARTY_AGENCY sy-vline 
WA_SXMSMSGLST_STR-IB_OPERATION sy-vline 
WA_SXMSMSGLST_STR-JOB_ID sy-vline 
WA_SXMSMSGLST_STR-STATUS sy-vline 
WA_SXMSMSGLST_STR-ERRCAT sy-vline 
WA_SXMSMSGLST_STR-ERRCODE sy-vline 
WA_SXMSMSGLST_STR-ERRLABEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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