ABAP Select data from SAP table KWTPHHR into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KWTPHHR
*  INTO TABLE @DATA(IT_KWTPHHR2).
*--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_KWTPHHR INDEX 1 INTO DATA(WA_KWTPHHR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KWTPHHR ASSIGNING <KWTPHHR>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<KWTPHHR>-REP1_ID = 1.
<KWTPHHR>-REIO_ID = 1.
<KWTPHHR>-REP1_CLASS = 1.
<KWTPHHR>-RE_CLASS = 1.
<KWTPHHR>-REP2_ID = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KWTPHHR-REP2_CLASS, sy-vline,
WA_KWTPHHR-CREA_USER, sy-vline,
WA_KWTPHHR-CREA_TIME, sy-vline,
WA_KWTPHHR-CHNG_USER, sy-vline,
WA_KWTPHHR-CHNG_TIME, sy-vline,
WA_KWTPHHR-DESCRIPT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_KWTPHHR 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_KWTPHHR 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_KWTPHHR INTO WA_KWTPHHR. *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 TSTLC, internal->external for field CREA_TIME CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT' EXPORTING input = WA_KWTPHHR-CREA_TIME IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KWTPHHR-CREA_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHNG_TIME CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT' EXPORTING input = WA_KWTPHHR-CHNG_TIME IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KWTPHHR-CHNG_TIME.
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_KWTPHHR_STR,
REP1_ID TYPE STRING,
REIO_ID TYPE STRING,
REP1_CLASS TYPE STRING,
RE_CLASS TYPE STRING,
REP2_ID TYPE STRING,
REP2_CLASS TYPE STRING,
CREA_USER TYPE STRING,
CREA_TIME TYPE STRING,
CHNG_USER TYPE STRING,
CHNG_TIME TYPE STRING,
DESCRIPT TYPE STRING,END OF T_EKKO_STR. DATA: WA_KWTPHHR_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_KWTPHHR_STR-REP1_ID sy-vline
WA_KWTPHHR_STR-REIO_ID sy-vline
WA_KWTPHHR_STR-REP1_CLASS sy-vline
WA_KWTPHHR_STR-RE_CLASS sy-vline
WA_KWTPHHR_STR-REP2_ID sy-vline
WA_KWTPHHR_STR-REP2_CLASS sy-vline
WA_KWTPHHR_STR-CREA_USER sy-vline
WA_KWTPHHR_STR-CREA_TIME sy-vline
WA_KWTPHHR_STR-CHNG_USER sy-vline
WA_KWTPHHR_STR-CHNG_TIME sy-vline
WA_KWTPHHR_STR-DESCRIPT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.