ABAP Select data from SAP table GUSL_DATA_RFC 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 GUSL_DATA_RFC 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 GUSL_DATA_RFC. 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 GUSL_DATA_RFC 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_GUSL_DATA_RFC TYPE STANDARD TABLE OF GUSL_DATA_RFC,
      WA_GUSL_DATA_RFC TYPE GUSL_DATA_RFC,
      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: <GUSL_DATA_RFC> TYPE GUSL_DATA_RFC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GUSL_DATA_RFC
*  INTO TABLE @DATA(IT_GUSL_DATA_RFC2).
*--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_GUSL_DATA_RFC INDEX 1 INTO DATA(WA_GUSL_DATA_RFC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GUSL_DATA_RFC ASSIGNING <GUSL_DATA_RFC>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<GUSL_DATA_RFC>-RLDNR = 1.
<GUSL_DATA_RFC>-RRCTY = 1.
<GUSL_DATA_RFC>-RVERS = 1.
<GUSL_DATA_RFC>-LOGSYS = 1.
<GUSL_DATA_RFC>-BUKRS = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GUSL_DATA_RFC-RBUKRS, sy-vline,
WA_GUSL_DATA_RFC-RYEAR, sy-vline,
WA_GUSL_DATA_RFC-POPER, sy-vline,
WA_GUSL_DATA_RFC-RCOMP, sy-vline,
WA_GUSL_DATA_RFC-RBUSA, sy-vline,
WA_GUSL_DATA_RFC-RFAREA, sy-vline.
ENDLOOP. *Add any further fields from structure WA_GUSL_DATA_RFC 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_GUSL_DATA_RFC 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_GUSL_DATA_RFC INTO WA_GUSL_DATA_RFC. *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 RLDNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_GUSL_DATA_RFC-RLDNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_GUSL_DATA_RFC-RLDNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field RUNIT CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_GUSL_DATA_RFC-RUNIT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_GUSL_DATA_RFC-RUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AUNIT CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_GUSL_DATA_RFC-AUNIT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_GUSL_DATA_RFC-AUNIT.
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_GUSL_DATA_RFC_STR,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
LOGSYS TYPE STRING,
BUKRS TYPE STRING,
RBUKRS TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
RCOMP TYPE STRING,
RBUSA TYPE STRING,
RFAREA TYPE STRING,
RACCT TYPE STRING,
DRCRK TYPE STRING,
OCLNT TYPE STRING,
RMVCT TYPE STRING,
RASSC TYPE STRING,
SBUKRS TYPE STRING,
SACCT TYPE STRING,
SBUSA TYPE STRING,
SFAREA TYPE STRING,
FIELD1 TYPE STRING,
FIELD2 TYPE STRING,
TSL TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
MSL TYPE STRING,
ASL TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
AUNIT TYPE STRING,END OF T_EKKO_STR. DATA: WA_GUSL_DATA_RFC_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_GUSL_DATA_RFC_STR-RLDNR sy-vline
WA_GUSL_DATA_RFC_STR-RRCTY sy-vline
WA_GUSL_DATA_RFC_STR-RVERS sy-vline
WA_GUSL_DATA_RFC_STR-LOGSYS sy-vline
WA_GUSL_DATA_RFC_STR-BUKRS sy-vline
WA_GUSL_DATA_RFC_STR-RBUKRS sy-vline
WA_GUSL_DATA_RFC_STR-RYEAR sy-vline
WA_GUSL_DATA_RFC_STR-POPER sy-vline
WA_GUSL_DATA_RFC_STR-RCOMP sy-vline
WA_GUSL_DATA_RFC_STR-RBUSA sy-vline
WA_GUSL_DATA_RFC_STR-RFAREA sy-vline
WA_GUSL_DATA_RFC_STR-RACCT sy-vline
WA_GUSL_DATA_RFC_STR-DRCRK sy-vline
WA_GUSL_DATA_RFC_STR-OCLNT sy-vline
WA_GUSL_DATA_RFC_STR-RMVCT sy-vline
WA_GUSL_DATA_RFC_STR-RASSC sy-vline
WA_GUSL_DATA_RFC_STR-SBUKRS sy-vline
WA_GUSL_DATA_RFC_STR-SACCT sy-vline
WA_GUSL_DATA_RFC_STR-SBUSA sy-vline
WA_GUSL_DATA_RFC_STR-SFAREA sy-vline
WA_GUSL_DATA_RFC_STR-FIELD1 sy-vline
WA_GUSL_DATA_RFC_STR-FIELD2 sy-vline
WA_GUSL_DATA_RFC_STR-TSL sy-vline
WA_GUSL_DATA_RFC_STR-HSL sy-vline
WA_GUSL_DATA_RFC_STR-KSL sy-vline
WA_GUSL_DATA_RFC_STR-MSL sy-vline
WA_GUSL_DATA_RFC_STR-ASL sy-vline
WA_GUSL_DATA_RFC_STR-RTCUR sy-vline
WA_GUSL_DATA_RFC_STR-RUNIT sy-vline
WA_GUSL_DATA_RFC_STR-AUNIT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.