ABAP Select data from SAP table PERSTIME 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 PERSTIME 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 PERSTIME. 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 PERSTIME 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_PERSTIME TYPE STANDARD TABLE OF PERSTIME,
      WA_PERSTIME TYPE PERSTIME,
      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: <PERSTIME> TYPE PERSTIME.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PERSTIME
*  INTO TABLE @DATA(IT_PERSTIME2).
*--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_PERSTIME INDEX 1 INTO DATA(WA_PERSTIME2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PERSTIME>-PERNR = 1.
<PERSTIME>-OTYPE = 1.
<PERSTIME>-DATUM = 1.
<PERSTIME>-MOTPR = 1.
<PERSTIME>-TPROG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PERSTIME-TAGTY, sy-vline,
  WA_PERSTIME-FTKLA, sy-vline,
  WA_PERSTIME-VARIA, sy-vline,
  WA_PERSTIME-TPKLA, sy-vline,
  WA_PERSTIME-ZMODN, sy-vline,
  WA_PERSTIME-STDAZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PERSTIME 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_PERSTIME 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_PERSTIME INTO WA_PERSTIME.


*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 ALPHA, internal->external for field PKOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PERSTIME-PKOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PERSTIME-PKOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PERSTIME-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PERSTIME-KOSTL.
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_PERSTIME_STR, 
PERNR TYPE STRING,
OTYPE TYPE STRING,
DATUM TYPE STRING,
MOTPR TYPE STRING,
TPROG TYPE STRING,
TAGTY TYPE STRING,
FTKLA TYPE STRING,
VARIA TYPE STRING,
TPKLA TYPE STRING,
ZMODN TYPE STRING,
STDAZ TYPE STRING,
ACTIV TYPE STRING,
NAT01 TYPE STRING,
NAT02 TYPE STRING,
PAMOD TYPE STRING,
DIENSTGR TYPE STRING,
DIENSTE TYPE STRING,
AWART TYPE STRING,
AWTYP TYPE STRING,
PBUKRS TYPE STRING,
PGSBER TYPE STRING,
PKOKRS TYPE STRING,
PKOSTL TYPE STRING,
STNBY TYPE STRING,
BPROG TYPE STRING,
BVARI TYPE STRING,
BEGZT TYPE STRING,
ENDZT TYPE STRING,
DAUER TYPE STRING,
BEGTI TYPE STRING,
ENDTI TYPE STRING,
PAUSEN TYPE STRING,
SEQNR TYPE STRING,
IS_SHIFT_ABVREV_AVAIL TYPE STRING,
PLANS_OTYPE TYPE STRING,
PLANS TYPE STRING,
PLANB TYPE STRING,
KOSTL TYPE STRING,
KOKRS TYPE STRING,
PBEG1 TYPE STRING,
PEND1 TYPE STRING,
PUNB1 TYPE STRING,
PBEZ1 TYPE STRING,
PBEG2 TYPE STRING,
PEND2 TYPE STRING,
PUNB2 TYPE STRING,
PBEZ2 TYPE STRING,
WISH TYPE STRING,
VTART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PERSTIME_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_PERSTIME_STR-PERNR sy-vline 
WA_PERSTIME_STR-OTYPE sy-vline 
WA_PERSTIME_STR-DATUM sy-vline 
WA_PERSTIME_STR-MOTPR sy-vline 
WA_PERSTIME_STR-TPROG sy-vline 
WA_PERSTIME_STR-TAGTY sy-vline 
WA_PERSTIME_STR-FTKLA sy-vline 
WA_PERSTIME_STR-VARIA sy-vline 
WA_PERSTIME_STR-TPKLA sy-vline 
WA_PERSTIME_STR-ZMODN sy-vline 
WA_PERSTIME_STR-STDAZ sy-vline 
WA_PERSTIME_STR-ACTIV sy-vline 
WA_PERSTIME_STR-NAT01 sy-vline 
WA_PERSTIME_STR-NAT02 sy-vline 
WA_PERSTIME_STR-PAMOD sy-vline 
WA_PERSTIME_STR-DIENSTGR sy-vline 
WA_PERSTIME_STR-DIENSTE sy-vline 
WA_PERSTIME_STR-AWART sy-vline 
WA_PERSTIME_STR-AWTYP sy-vline 
WA_PERSTIME_STR-PBUKRS sy-vline 
WA_PERSTIME_STR-PGSBER sy-vline 
WA_PERSTIME_STR-PKOKRS sy-vline 
WA_PERSTIME_STR-PKOSTL sy-vline 
WA_PERSTIME_STR-STNBY sy-vline 
WA_PERSTIME_STR-BPROG sy-vline 
WA_PERSTIME_STR-BVARI sy-vline 
WA_PERSTIME_STR-BEGZT sy-vline 
WA_PERSTIME_STR-ENDZT sy-vline 
WA_PERSTIME_STR-DAUER sy-vline 
WA_PERSTIME_STR-BEGTI sy-vline 
WA_PERSTIME_STR-ENDTI sy-vline 
WA_PERSTIME_STR-PAUSEN sy-vline 
WA_PERSTIME_STR-SEQNR sy-vline 
WA_PERSTIME_STR-IS_SHIFT_ABVREV_AVAIL sy-vline 
WA_PERSTIME_STR-PLANS_OTYPE sy-vline 
WA_PERSTIME_STR-PLANS sy-vline 
WA_PERSTIME_STR-PLANB sy-vline 
WA_PERSTIME_STR-KOSTL sy-vline 
WA_PERSTIME_STR-KOKRS sy-vline 
WA_PERSTIME_STR-PBEG1 sy-vline 
WA_PERSTIME_STR-PEND1 sy-vline 
WA_PERSTIME_STR-PUNB1 sy-vline 
WA_PERSTIME_STR-PBEZ1 sy-vline 
WA_PERSTIME_STR-PBEG2 sy-vline 
WA_PERSTIME_STR-PEND2 sy-vline 
WA_PERSTIME_STR-PUNB2 sy-vline 
WA_PERSTIME_STR-PBEZ2 sy-vline 
WA_PERSTIME_STR-WISH sy-vline 
WA_PERSTIME_STR-VTART sy-vline      INTO ld_text SEPARATED BY SPACE.

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