ABAP Select data from SAP table FISV_GAPSTARTNUM 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 FISV_GAPSTARTNUM 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 FISV_GAPSTARTNUM. 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 FISV_GAPSTARTNUM 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_FISV_GAPSTARTNUM TYPE STANDARD TABLE OF FISV_GAPSTARTNUM,
      WA_FISV_GAPSTARTNUM TYPE FISV_GAPSTARTNUM,
      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: <FISV_GAPSTARTNUM> TYPE FISV_GAPSTARTNUM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FISV_GAPSTARTNUM
*  INTO TABLE @DATA(IT_FISV_GAPSTARTNUM2).
*--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_FISV_GAPSTARTNUM INDEX 1 INTO DATA(WA_FISV_GAPSTARTNUM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FISV_GAPSTARTNUM ASSIGNING <FISV_GAPSTARTNUM>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<FISV_GAPSTARTNUM>-MANDT = 1.
<FISV_GAPSTARTNUM>-BUKRS = 1.
<FISV_GAPSTARTNUM>-RANGE = 1.
<FISV_GAPSTARTNUM>-NUMCBELNR_F = 1.
<FISV_GAPSTARTNUM>-NUMCBELNR_T = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FISV_GAPSTARTNUM-YEARFROM, sy-vline,
WA_FISV_GAPSTARTNUM-YEARTO, sy-vline,
WA_FISV_GAPSTARTNUM-NRLEVEL, sy-vline,
WA_FISV_GAPSTARTNUM-EXTERNIND, sy-vline,
ENDLOOP. *Add any further fields from structure WA_FISV_GAPSTARTNUM 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_FISV_GAPSTARTNUM 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_FISV_GAPSTARTNUM INTO WA_FISV_GAPSTARTNUM. *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_FISV_GAPSTARTNUM_STR,
MANDT TYPE STRING,
BUKRS TYPE STRING,
RANGE TYPE STRING,
NUMCBELNR_F TYPE STRING,
NUMCBELNR_T TYPE STRING,
YEARFROM TYPE STRING,
YEARTO TYPE STRING,
NRLEVEL TYPE STRING,
EXTERNIND TYPE STRING,END OF T_EKKO_STR. DATA: WA_FISV_GAPSTARTNUM_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_FISV_GAPSTARTNUM_STR-MANDT sy-vline
WA_FISV_GAPSTARTNUM_STR-BUKRS sy-vline
WA_FISV_GAPSTARTNUM_STR-RANGE sy-vline
WA_FISV_GAPSTARTNUM_STR-NUMCBELNR_F sy-vline
WA_FISV_GAPSTARTNUM_STR-NUMCBELNR_T sy-vline
WA_FISV_GAPSTARTNUM_STR-YEARFROM sy-vline
WA_FISV_GAPSTARTNUM_STR-YEARTO sy-vline
WA_FISV_GAPSTARTNUM_STR-NRLEVEL sy-vline
WA_FISV_GAPSTARTNUM_STR-EXTERNIND sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.