ABAP Select data from SAP table U_15901 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 U_15901 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 U_15901. 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 U_15901 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_U_15901 TYPE STANDARD TABLE OF U_15901,
      WA_U_15901 TYPE U_15901,
      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: <U_15901> TYPE U_15901.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_15901.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_15901
  INTO TABLE IT_U_15901.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_15901
*  INTO TABLE @DATA(IT_U_159012).
*--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_U_15901 INDEX 1 INTO DATA(WA_U_159012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_15901 ASSIGNING <U_15901>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_15901>-MANDT = 1.
<U_15901>-BELNR = 1.
<U_15901>-GJAHR = 1.
<U_15901>-BLART = 1.
<U_15901>-BLDAT = 1.
ENDLOOP.

LOOP AT IT_U_15901 INTO WA_U_15901.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_15901-BUDAT, sy-vline,
WA_U_15901-USNAM, sy-vline,
WA_U_15901-TCODE, sy-vline,
WA_U_15901-CPUDT, sy-vline,
WA_U_15901-CPUTM, sy-vline,
WA_U_15901-VGART, sy-vline.
ENDLOOP. *Add any further fields from structure WA_U_15901 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_U_15901 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_U_15901 INTO WA_U_15901. *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 BELNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_U_15901-BELNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_U_15901-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_U_15901-GJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_U_15901-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_U_15901-LIFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_U_15901-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT' EXPORTING input = WA_U_15901-KURSF IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_U_15901-KURSF.
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_U_15901_STR,
MANDT TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
USNAM TYPE STRING,
TCODE TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
VGART TYPE STRING,
XBLNR TYPE STRING,
BUKRS TYPE STRING,
LIFNR TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
RMWWR TYPE STRING,
BEZNK TYPE STRING,
WMWST1 TYPE STRING,
MWSKZ1 TYPE STRING,
WMWST2 TYPE STRING,
MWSKZ2 TYPE STRING,
ZTERM TYPE STRING,
ZBD1T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2T TYPE STRING,
ZBD2P TYPE STRING,
ZBD3T TYPE STRING,
WSKTO TYPE STRING,
XRECH TYPE STRING,
BKTXT TYPE STRING,
SAPRL TYPE STRING,END OF T_EKKO_STR. DATA: WA_U_15901_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_U_15901_STR-MANDT sy-vline
WA_U_15901_STR-BELNR sy-vline
WA_U_15901_STR-GJAHR sy-vline
WA_U_15901_STR-BLART sy-vline
WA_U_15901_STR-BLDAT sy-vline
WA_U_15901_STR-BUDAT sy-vline
WA_U_15901_STR-USNAM sy-vline
WA_U_15901_STR-TCODE sy-vline
WA_U_15901_STR-CPUDT sy-vline
WA_U_15901_STR-CPUTM sy-vline
WA_U_15901_STR-VGART sy-vline
WA_U_15901_STR-XBLNR sy-vline
WA_U_15901_STR-BUKRS sy-vline
WA_U_15901_STR-LIFNR sy-vline
WA_U_15901_STR-WAERS sy-vline
WA_U_15901_STR-KURSF sy-vline
WA_U_15901_STR-RMWWR sy-vline
WA_U_15901_STR-BEZNK sy-vline
WA_U_15901_STR-WMWST1 sy-vline
WA_U_15901_STR-MWSKZ1 sy-vline
WA_U_15901_STR-WMWST2 sy-vline
WA_U_15901_STR-MWSKZ2 sy-vline
WA_U_15901_STR-ZTERM sy-vline
WA_U_15901_STR-ZBD1T sy-vline
WA_U_15901_STR-ZBD1P sy-vline
WA_U_15901_STR-ZBD2T sy-vline
WA_U_15901_STR-ZBD2P sy-vline
WA_U_15901_STR-ZBD3T sy-vline
WA_U_15901_STR-WSKTO sy-vline
WA_U_15901_STR-XRECH sy-vline
WA_U_15901_STR-BKTXT sy-vline
WA_U_15901_STR-SAPRL sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.