ABAP Select data from SAP table BAPISTUDENT_RESIDENCYT 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 BAPISTUDENT_RESIDENCYT 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 BAPISTUDENT_RESIDENCYT. 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 BAPISTUDENT_RESIDENCYT 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_BAPISTUDENT_RESIDENCYT TYPE STANDARD TABLE OF BAPISTUDENT_RESIDENCYT,
      WA_BAPISTUDENT_RESIDENCYT TYPE BAPISTUDENT_RESIDENCYT,
      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: <BAPISTUDENT_RESIDENCYT> TYPE BAPISTUDENT_RESIDENCYT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPISTUDENT_RESIDENCYT
*  INTO TABLE @DATA(IT_BAPISTUDENT_RESIDENCYT2).
*--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_BAPISTUDENT_RESIDENCYT INDEX 1 INTO DATA(WA_BAPISTUDENT_RESIDENCYT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPISTUDENT_RESIDENCYT ASSIGNING <BAPISTUDENT_RESIDENCYT>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPISTUDENT_RESIDENCYT>-RESIDENCY_STATUS = 1.
<BAPISTUDENT_RESIDENCYT>-RESIDENCY_STATUS_TXT = 1.
<BAPISTUDENT_RESIDENCYT>-RESIDENCY_COUNTRY = 1.
<BAPISTUDENT_RESIDENCYT>-RESIDENCY_COUNTRY_ISO = 1.
<BAPISTUDENT_RESIDENCYT>-NAMEOFRESIDENCYCOUNTRY = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPISTUDENT_RESIDENCYT-RESIDENCY_REGION, sy-vline,
WA_BAPISTUDENT_RESIDENCYT-NAMEOFRESIDENCYSTATE, sy-vline,
WA_BAPISTUDENT_RESIDENCYT-RESIDENCY_COUNTY, sy-vline,
WA_BAPISTUDENT_RESIDENCYT-NAMEOFRESIDENCYCOUNTY, sy-vline,
WA_BAPISTUDENT_RESIDENCYT-PASSPORT_NUMBER, sy-vline,
WA_BAPISTUDENT_RESIDENCYT-ORIGIN, sy-vline.
ENDLOOP. *Add any further fields from structure WA_BAPISTUDENT_RESIDENCYT 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_BAPISTUDENT_RESIDENCYT 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_BAPISTUDENT_RESIDENCYT INTO WA_BAPISTUDENT_RESIDENCYT. *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_BAPISTUDENT_RESIDENCYT_STR,
RESIDENCY_STATUS TYPE STRING,
RESIDENCY_STATUS_TXT TYPE STRING,
RESIDENCY_COUNTRY TYPE STRING,
RESIDENCY_COUNTRY_ISO TYPE STRING,
NAMEOFRESIDENCYCOUNTRY TYPE STRING,
RESIDENCY_REGION TYPE STRING,
NAMEOFRESIDENCYSTATE TYPE STRING,
RESIDENCY_COUNTY TYPE STRING,
NAMEOFRESIDENCYCOUNTY TYPE STRING,
PASSPORT_NUMBER TYPE STRING,
ORIGIN TYPE STRING,
ORIGIN_TXT TYPE STRING,END OF T_EKKO_STR. DATA: WA_BAPISTUDENT_RESIDENCYT_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_BAPISTUDENT_RESIDENCYT_STR-RESIDENCY_STATUS sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-RESIDENCY_STATUS_TXT sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-RESIDENCY_COUNTRY sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-RESIDENCY_COUNTRY_ISO sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-NAMEOFRESIDENCYCOUNTRY sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-RESIDENCY_REGION sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-NAMEOFRESIDENCYSTATE sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-RESIDENCY_COUNTY sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-NAMEOFRESIDENCYCOUNTY sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-PASSPORT_NUMBER sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-ORIGIN sy-vline
WA_BAPISTUDENT_RESIDENCYT_STR-ORIGIN_TXT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.