ABAP Select data from SAP table SAPWLTCOD1 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 SAPWLTCOD1 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 SAPWLTCOD1. 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 SAPWLTCOD1 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_SAPWLTCOD1 TYPE STANDARD TABLE OF SAPWLTCOD1,
      WA_SAPWLTCOD1 TYPE SAPWLTCOD1,
      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: <SAPWLTCOD1> TYPE SAPWLTCOD1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SAPWLTCOD1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SAPWLTCOD1
  INTO TABLE IT_SAPWLTCOD1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SAPWLTCOD1
*  INTO TABLE @DATA(IT_SAPWLTCOD12).
*--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_SAPWLTCOD1 INDEX 1 INTO DATA(WA_SAPWLTCOD12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SAPWLTCOD1 ASSIGNING <SAPWLTCOD1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SAPWLTCOD1>-INSTANCE = 1.
<SAPWLTCOD1>-ACCOUNT = 1.
<SAPWLTCOD1>-POSID = 1.
<SAPWLTCOD1>-TCODE = 1.
<SAPWLTCOD1>-BTCJOB = 1.

ENDLOOP.

LOOP AT IT_SAPWLTCOD1 INTO WA_SAPWLTCOD1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SAPWLTCOD1-DIASTEPCNT, sy-vline,
  WA_SAPWLTCOD1-LUWCNT, sy-vline,
  WA_SAPWLTCOD1-RESPST, sy-vline,
  WA_SAPWLTCOD1-RESPMT, sy-vline,
  WA_SAPWLTCOD1-RESPMTA, sy-vline,
  WA_SAPWLTCOD1-PROCST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SAPWLTCOD1 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_SAPWLTCOD1 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_SAPWLTCOD1 INTO WA_SAPWLTCOD1.


*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_SAPWLTCOD1_STR, 
INSTANCE TYPE STRING,
ACCOUNT TYPE STRING,
POSID TYPE STRING,
TCODE TYPE STRING,
BTCJOB TYPE STRING,
DIASTEPCNT TYPE STRING,
LUWCNT TYPE STRING,
RESPST TYPE STRING,
RESPMT TYPE STRING,
RESPMTA TYPE STRING,
PROCST TYPE STRING,
PROCMT TYPE STRING,
PROCMTA TYPE STRING,
CPUST TYPE STRING,
CPUMT TYPE STRING,
CPUMTA TYPE STRING,
DBST TYPE STRING,
DBMT TYPE STRING,
DBMTA TYPE STRING,
DBPRMT TYPE STRING,
DBPRMTA TYPE STRING,
ROLLWAITST TYPE STRING,
ROLLWAITMT TYPE STRING,
ROLLWAITMTA TYPE STRING,
WAITST TYPE STRING,
WAITMT TYPE STRING,
WAITMTA TYPE STRING,
READSEQCNT TYPE STRING,
READSEQST TYPE STRING,
READSEQMT TYPE STRING,
READSEQREC TYPE STRING,
READDIRCNT TYPE STRING,
READDIRST TYPE STRING,
READDIRMT TYPE STRING,
READDIRREC TYPE STRING,
READSEQBUF TYPE STRING,
CHNGCNT TYPE STRING,
CHNGST TYPE STRING,
CHNGMT TYPE STRING,
CHNGREC TYPE STRING,
DBREQUCNT TYPE STRING,
DBREQMTI TYPE STRING,
PHYREADCNT TYPE STRING,
PHYCHNGREC TYPE STRING,
PHYDBCALLS TYPE STRING,
DBUFREADCN TYPE STRING,
DBPCOUNT TYPE STRING,
DBPTIME TYPE STRING,
DBPAVTI TYPE STRING,
MCPUTI TYPE STRING,
MPROCTI TYPE STRING,
MDBTI TYPE STRING,
MDBPRTI TYPE STRING,
MROLLWAIT TYPE STRING,
MWAITTI TYPE STRING,
MFGUITI TYPE STRING,
FNETST TYPE STRING,
FGUIST TYPE STRING,
FGUICNT TYPE STRING,
FNETMT TYPE STRING,
FGUIMT TYPE STRING,
FGUITRPMT TYPE STRING,
BYTES TYPE STRING,
MBYTESIN TYPE STRING,
MBYTESOUT TYPE STRING,
MBYTESINTA TYPE STRING,
MBYTESOUTTA TYPE STRING,
TEXT TYPE STRING,
VMC_CALLCOUNT TYPE STRING,
VMC_CPUTIME TYPE STRING,
VMC_ELAPTIME TYPE STRING,
VMC_AVGCPU TYPE STRING,
VMC_AVGELAP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SAPWLTCOD1_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_SAPWLTCOD1_STR-INSTANCE sy-vline 
WA_SAPWLTCOD1_STR-ACCOUNT sy-vline 
WA_SAPWLTCOD1_STR-POSID sy-vline 
WA_SAPWLTCOD1_STR-TCODE sy-vline 
WA_SAPWLTCOD1_STR-BTCJOB sy-vline 
WA_SAPWLTCOD1_STR-DIASTEPCNT sy-vline 
WA_SAPWLTCOD1_STR-LUWCNT sy-vline 
WA_SAPWLTCOD1_STR-RESPST sy-vline 
WA_SAPWLTCOD1_STR-RESPMT sy-vline 
WA_SAPWLTCOD1_STR-RESPMTA sy-vline 
WA_SAPWLTCOD1_STR-PROCST sy-vline 
WA_SAPWLTCOD1_STR-PROCMT sy-vline 
WA_SAPWLTCOD1_STR-PROCMTA sy-vline 
WA_SAPWLTCOD1_STR-CPUST sy-vline 
WA_SAPWLTCOD1_STR-CPUMT sy-vline 
WA_SAPWLTCOD1_STR-CPUMTA sy-vline 
WA_SAPWLTCOD1_STR-DBST sy-vline 
WA_SAPWLTCOD1_STR-DBMT sy-vline 
WA_SAPWLTCOD1_STR-DBMTA sy-vline 
WA_SAPWLTCOD1_STR-DBPRMT sy-vline 
WA_SAPWLTCOD1_STR-DBPRMTA sy-vline 
WA_SAPWLTCOD1_STR-ROLLWAITST sy-vline 
WA_SAPWLTCOD1_STR-ROLLWAITMT sy-vline 
WA_SAPWLTCOD1_STR-ROLLWAITMTA sy-vline 
WA_SAPWLTCOD1_STR-WAITST sy-vline 
WA_SAPWLTCOD1_STR-WAITMT sy-vline 
WA_SAPWLTCOD1_STR-WAITMTA sy-vline 
WA_SAPWLTCOD1_STR-READSEQCNT sy-vline 
WA_SAPWLTCOD1_STR-READSEQST sy-vline 
WA_SAPWLTCOD1_STR-READSEQMT sy-vline 
WA_SAPWLTCOD1_STR-READSEQREC sy-vline 
WA_SAPWLTCOD1_STR-READDIRCNT sy-vline 
WA_SAPWLTCOD1_STR-READDIRST sy-vline 
WA_SAPWLTCOD1_STR-READDIRMT sy-vline 
WA_SAPWLTCOD1_STR-READDIRREC sy-vline 
WA_SAPWLTCOD1_STR-READSEQBUF sy-vline 
WA_SAPWLTCOD1_STR-CHNGCNT sy-vline 
WA_SAPWLTCOD1_STR-CHNGST sy-vline 
WA_SAPWLTCOD1_STR-CHNGMT sy-vline 
WA_SAPWLTCOD1_STR-CHNGREC sy-vline 
WA_SAPWLTCOD1_STR-DBREQUCNT sy-vline 
WA_SAPWLTCOD1_STR-DBREQMTI sy-vline 
WA_SAPWLTCOD1_STR-PHYREADCNT sy-vline 
WA_SAPWLTCOD1_STR-PHYCHNGREC sy-vline 
WA_SAPWLTCOD1_STR-PHYDBCALLS sy-vline 
WA_SAPWLTCOD1_STR-DBUFREADCN sy-vline 
WA_SAPWLTCOD1_STR-DBPCOUNT sy-vline 
WA_SAPWLTCOD1_STR-DBPTIME sy-vline 
WA_SAPWLTCOD1_STR-DBPAVTI sy-vline 
WA_SAPWLTCOD1_STR-MCPUTI sy-vline 
WA_SAPWLTCOD1_STR-MPROCTI sy-vline 
WA_SAPWLTCOD1_STR-MDBTI sy-vline 
WA_SAPWLTCOD1_STR-MDBPRTI sy-vline 
WA_SAPWLTCOD1_STR-MROLLWAIT sy-vline 
WA_SAPWLTCOD1_STR-MWAITTI sy-vline 
WA_SAPWLTCOD1_STR-MFGUITI sy-vline 
WA_SAPWLTCOD1_STR-FNETST sy-vline 
WA_SAPWLTCOD1_STR-FGUIST sy-vline 
WA_SAPWLTCOD1_STR-FGUICNT sy-vline 
WA_SAPWLTCOD1_STR-FNETMT sy-vline 
WA_SAPWLTCOD1_STR-FGUIMT sy-vline 
WA_SAPWLTCOD1_STR-FGUITRPMT sy-vline 
WA_SAPWLTCOD1_STR-BYTES sy-vline 
WA_SAPWLTCOD1_STR-MBYTESIN sy-vline 
WA_SAPWLTCOD1_STR-MBYTESOUT sy-vline 
WA_SAPWLTCOD1_STR-MBYTESINTA sy-vline 
WA_SAPWLTCOD1_STR-MBYTESOUTTA sy-vline 
WA_SAPWLTCOD1_STR-TEXT sy-vline 
WA_SAPWLTCOD1_STR-VMC_CALLCOUNT sy-vline 
WA_SAPWLTCOD1_STR-VMC_CPUTIME sy-vline 
WA_SAPWLTCOD1_STR-VMC_ELAPTIME sy-vline 
WA_SAPWLTCOD1_STR-VMC_AVGCPU sy-vline 
WA_SAPWLTCOD1_STR-VMC_AVGELAP sy-vline      INTO ld_text SEPARATED BY SPACE.

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