ABAP Select data from SAP table SGLWLHITL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SGLWLHITL
*  INTO TABLE @DATA(IT_SGLWLHITL2).
*--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_SGLWLHITL INDEX 1 INTO DATA(WA_SGLWLHITL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SGLWLHITL>-DATE = 1.
<SGLWLHITL>-RESPTI = 1.
<SGLWLHITL>-DBCALLS = 1.
<SGLWLHITL>-ENDTI = 1.
<SGLWLHITL>-CPUTI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SGLWLHITL-QUEUETI, sy-vline,
  WA_SGLWLHITL-V1SATI, sy-vline,
  WA_SGLWLHITL-WPID, sy-vline,
  WA_SGLWLHITL-TASKTYPE, sy-vline,
  WA_SGLWLHITL-TABLOAD, sy-vline,
  WA_SGLWLHITL-TCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SGLWLHITL 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_SGLWLHITL 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_SGLWLHITL INTO WA_SGLWLHITL.


*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_SGLWLHITL_STR, 
DATE TYPE STRING,
RESPTI TYPE STRING,
DBCALLS TYPE STRING,
ENDTI TYPE STRING,
CPUTI TYPE STRING,
QUEUETI TYPE STRING,
V1SATI TYPE STRING,
WPID TYPE STRING,
TASKTYPE TYPE STRING,
TABLOAD TYPE STRING,
TCODE TYPE STRING,
TERMINALID TYPE STRING,
DYNPRONR TYPE STRING,
REPORT TYPE STRING,
ACCOUNT TYPE STRING,
MANDT TYPE STRING,
ROLLKEY TYPE STRING,
INPUTLEN TYPE STRING,
OUTPUTLEN TYPE STRING,
MAXROLL TYPE STRING,
MAXPAGE TYPE STRING,
ROLLINCNT TYPE STRING,
ROLLINTI TYPE STRING,
ROLLOUTCNT TYPE STRING,
ROLLOUTTI TYPE STRING,
LOCKCNT TYPE STRING,
LOCKTI TYPE STRING,
TABNAME1 TYPE STRING,
TAB1DIRCNT TYPE STRING,
TAB1SEQCNT TYPE STRING,
TAB1UPDCNT TYPE STRING,
TABNAME2 TYPE STRING,
TAB2DIRCNT TYPE STRING,
TAB2SEQCNT TYPE STRING,
TAB2UPDCNT TYPE STRING,
TABNAME3 TYPE STRING,
TAB3DIRCNT TYPE STRING,
TAB3SEQCNT TYPE STRING,
TAB3UPDCNT TYPE STRING,
TABNAME4 TYPE STRING,
TAB4DIRCNT TYPE STRING,
TAB4SEQCNT TYPE STRING,
TAB4UPDCNT TYPE STRING,
TABNAME5 TYPE STRING,
TAB5DIRCNT TYPE STRING,
TAB5SEQCNT TYPE STRING,
TAB5UPDCNT TYPE STRING,
READDIRCNT TYPE STRING,
READDIRTI TYPE STRING,
READDIRREC TYPE STRING,
READDIRBUF TYPE STRING,
READSEQCNT TYPE STRING,
READSEQTI TYPE STRING,
READSEQREC TYPE STRING,
READSEQBUF TYPE STRING,
PHYREADCNT TYPE STRING,
INSCNT TYPE STRING,
INSTI TYPE STRING,
INSREC TYPE STRING,
PHYINSCNT TYPE STRING,
UPDCNT TYPE STRING,
UPDTI TYPE STRING,
UPDREC TYPE STRING,
PHYUPDCNT TYPE STRING,
DELCNT TYPE STRING,
DELTI TYPE STRING,
DELREC TYPE STRING,
PHYDELCNT TYPE STRING,
COMMITTI TYPE STRING,
GENERATETI TYPE STRING,
REPLOADTI TYPE STRING,
CUALOADTI TYPE STRING,
DYNPLOADTI TYPE STRING,
DSQLCNT TYPE STRING,
QUECNT TYPE STRING,
QUETI TYPE STRING,
DDICTI TYPE STRING,
CPICCNT TYPE STRING,
CPICTI TYPE STRING,
TABLEPOINT TYPE STRING,
BTCJOBNAME TYPE STRING,
BTCSTEPNR TYPE STRING,
ROLLED_OUT TYPE STRING,
SLI_CNT TYPE STRING,
USEDBYTES TYPE STRING,
PRIVSUM TYPE STRING,
MAXBYTES TYPE STRING,
MAXBYTESDI TYPE STRING,
PRIVMODE TYPE STRING,
WPRESTART TYPE STRING,
GUITIME TYPE STRING,
GUICNT TYPE STRING,
RFCRECEIVE TYPE STRING,
RFCSEND TYPE STRING,
RFCEXETIME TYPE STRING,
RFCCALLTIM TYPE STRING,
RFCCALLS TYPE STRING,
RFCDATFROM TYPE STRING,
DBP_COUNT TYPE STRING,
DBP_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SGLWLHITL_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_SGLWLHITL_STR-DATE sy-vline 
WA_SGLWLHITL_STR-RESPTI sy-vline 
WA_SGLWLHITL_STR-DBCALLS sy-vline 
WA_SGLWLHITL_STR-ENDTI sy-vline 
WA_SGLWLHITL_STR-CPUTI sy-vline 
WA_SGLWLHITL_STR-QUEUETI sy-vline 
WA_SGLWLHITL_STR-V1SATI sy-vline 
WA_SGLWLHITL_STR-WPID sy-vline 
WA_SGLWLHITL_STR-TASKTYPE sy-vline 
WA_SGLWLHITL_STR-TABLOAD sy-vline 
WA_SGLWLHITL_STR-TCODE sy-vline 
WA_SGLWLHITL_STR-TERMINALID sy-vline 
WA_SGLWLHITL_STR-DYNPRONR sy-vline 
WA_SGLWLHITL_STR-REPORT sy-vline 
WA_SGLWLHITL_STR-ACCOUNT sy-vline 
WA_SGLWLHITL_STR-MANDT sy-vline 
WA_SGLWLHITL_STR-ROLLKEY sy-vline 
WA_SGLWLHITL_STR-INPUTLEN sy-vline 
WA_SGLWLHITL_STR-OUTPUTLEN sy-vline 
WA_SGLWLHITL_STR-MAXROLL sy-vline 
WA_SGLWLHITL_STR-MAXPAGE sy-vline 
WA_SGLWLHITL_STR-ROLLINCNT sy-vline 
WA_SGLWLHITL_STR-ROLLINTI sy-vline 
WA_SGLWLHITL_STR-ROLLOUTCNT sy-vline 
WA_SGLWLHITL_STR-ROLLOUTTI sy-vline 
WA_SGLWLHITL_STR-LOCKCNT sy-vline 
WA_SGLWLHITL_STR-LOCKTI sy-vline 
WA_SGLWLHITL_STR-TABNAME1 sy-vline 
WA_SGLWLHITL_STR-TAB1DIRCNT sy-vline 
WA_SGLWLHITL_STR-TAB1SEQCNT sy-vline 
WA_SGLWLHITL_STR-TAB1UPDCNT sy-vline 
WA_SGLWLHITL_STR-TABNAME2 sy-vline 
WA_SGLWLHITL_STR-TAB2DIRCNT sy-vline 
WA_SGLWLHITL_STR-TAB2SEQCNT sy-vline 
WA_SGLWLHITL_STR-TAB2UPDCNT sy-vline 
WA_SGLWLHITL_STR-TABNAME3 sy-vline 
WA_SGLWLHITL_STR-TAB3DIRCNT sy-vline 
WA_SGLWLHITL_STR-TAB3SEQCNT sy-vline 
WA_SGLWLHITL_STR-TAB3UPDCNT sy-vline 
WA_SGLWLHITL_STR-TABNAME4 sy-vline 
WA_SGLWLHITL_STR-TAB4DIRCNT sy-vline 
WA_SGLWLHITL_STR-TAB4SEQCNT sy-vline 
WA_SGLWLHITL_STR-TAB4UPDCNT sy-vline 
WA_SGLWLHITL_STR-TABNAME5 sy-vline 
WA_SGLWLHITL_STR-TAB5DIRCNT sy-vline 
WA_SGLWLHITL_STR-TAB5SEQCNT sy-vline 
WA_SGLWLHITL_STR-TAB5UPDCNT sy-vline 
WA_SGLWLHITL_STR-READDIRCNT sy-vline 
WA_SGLWLHITL_STR-READDIRTI sy-vline 
WA_SGLWLHITL_STR-READDIRREC sy-vline 
WA_SGLWLHITL_STR-READDIRBUF sy-vline 
WA_SGLWLHITL_STR-READSEQCNT sy-vline 
WA_SGLWLHITL_STR-READSEQTI sy-vline 
WA_SGLWLHITL_STR-READSEQREC sy-vline 
WA_SGLWLHITL_STR-READSEQBUF sy-vline 
WA_SGLWLHITL_STR-PHYREADCNT sy-vline 
WA_SGLWLHITL_STR-INSCNT sy-vline 
WA_SGLWLHITL_STR-INSTI sy-vline 
WA_SGLWLHITL_STR-INSREC sy-vline 
WA_SGLWLHITL_STR-PHYINSCNT sy-vline 
WA_SGLWLHITL_STR-UPDCNT sy-vline 
WA_SGLWLHITL_STR-UPDTI sy-vline 
WA_SGLWLHITL_STR-UPDREC sy-vline 
WA_SGLWLHITL_STR-PHYUPDCNT sy-vline 
WA_SGLWLHITL_STR-DELCNT sy-vline 
WA_SGLWLHITL_STR-DELTI sy-vline 
WA_SGLWLHITL_STR-DELREC sy-vline 
WA_SGLWLHITL_STR-PHYDELCNT sy-vline 
WA_SGLWLHITL_STR-COMMITTI sy-vline 
WA_SGLWLHITL_STR-GENERATETI sy-vline 
WA_SGLWLHITL_STR-REPLOADTI sy-vline 
WA_SGLWLHITL_STR-CUALOADTI sy-vline 
WA_SGLWLHITL_STR-DYNPLOADTI sy-vline 
WA_SGLWLHITL_STR-DSQLCNT sy-vline 
WA_SGLWLHITL_STR-QUECNT sy-vline 
WA_SGLWLHITL_STR-QUETI sy-vline 
WA_SGLWLHITL_STR-DDICTI sy-vline 
WA_SGLWLHITL_STR-CPICCNT sy-vline 
WA_SGLWLHITL_STR-CPICTI sy-vline 
WA_SGLWLHITL_STR-TABLEPOINT sy-vline 
WA_SGLWLHITL_STR-BTCJOBNAME sy-vline 
WA_SGLWLHITL_STR-BTCSTEPNR sy-vline 
WA_SGLWLHITL_STR-ROLLED_OUT sy-vline 
WA_SGLWLHITL_STR-SLI_CNT sy-vline 
WA_SGLWLHITL_STR-USEDBYTES sy-vline 
WA_SGLWLHITL_STR-PRIVSUM sy-vline 
WA_SGLWLHITL_STR-MAXBYTES sy-vline 
WA_SGLWLHITL_STR-MAXBYTESDI sy-vline 
WA_SGLWLHITL_STR-PRIVMODE sy-vline 
WA_SGLWLHITL_STR-WPRESTART sy-vline 
WA_SGLWLHITL_STR-GUITIME sy-vline 
WA_SGLWLHITL_STR-GUICNT sy-vline 
WA_SGLWLHITL_STR-RFCRECEIVE sy-vline 
WA_SGLWLHITL_STR-RFCSEND sy-vline 
WA_SGLWLHITL_STR-RFCEXETIME sy-vline 
WA_SGLWLHITL_STR-RFCCALLTIM sy-vline 
WA_SGLWLHITL_STR-RFCCALLS sy-vline 
WA_SGLWLHITL_STR-RFCDATFROM sy-vline 
WA_SGLWLHITL_STR-DBP_COUNT sy-vline 
WA_SGLWLHITL_STR-DBP_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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