ABAP Select data from SAP table /GBT/S_HU_MAINT 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 /GBT/S_HU_MAINT 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 /GBT/S_HU_MAINT. 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 /GBT/S_HU_MAINT 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_/GBT/S_HU_MAINT TYPE STANDARD TABLE OF /GBT/S_HU_MAINT, WA_/GBT/S_HU_MAINT TYPE /GBT/S_HU_MAINT, 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: </GBT/S_HU_MAINT> TYPE /GBT/S_HU_MAINT. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_/GBT/S_HU_MAINT. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM /GBT/S_HU_MAINT INTO TABLE IT_/GBT/S_HU_MAINT. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM /GBT/S_HU_MAINT * INTO TABLE @DATA(IT_/GBT/S_HU_MAINT2). *--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_/GBT/S_HU_MAINT INDEX 1 INTO DATA(WA_/GBT/S_HU_MAINT2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_/GBT/S_HU_MAINT ASSIGNING </GBT/S_HU_MAINT>.*To update a field value using a field symbol simply change the value via the field symbol pointer
</GBT/S_HU_MAINT>-HUMNR = 1.
</GBT/S_HU_MAINT>-LOGSYS = 1.
</GBT/S_HU_MAINT>-GROUP_INDEX = 1.
</GBT/S_HU_MAINT>-CREATED_DATE = 1.
</GBT/S_HU_MAINT>-CREATED_TIME = 1.
ENDLOOP. LOOP AT IT_/GBT/S_HU_MAINT INTO WA_/GBT/S_HU_MAINT. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_/GBT/S_HU_MAINT-CREATED_BY, sy-vline,
WA_/GBT/S_HU_MAINT-CHANGED_DATE, sy-vline,
WA_/GBT/S_HU_MAINT-CHANGED_TIME, sy-vline,
WA_/GBT/S_HU_MAINT-CHANGED_BY, sy-vline,
WA_/GBT/S_HU_MAINT-HUMNR_TYPE, sy-vline,
WA_/GBT/S_HU_MAINT-HU_ID, sy-vline.
ENDLOOP. *Add any further fields from structure WA_/GBT/S_HU_MAINT 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_/GBT/S_HU_MAINT 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_/GBT/S_HU_MAINT INTO WA_/GBT/S_HU_MAINT. *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 LOGSYS CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_/GBT/S_HU_MAINT-LOGSYS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_HU_MAINT-LOGSYS.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GBTM1, internal->external for field PACK_MAT CALL FUNCTION 'CONVERSION_EXIT_GBTM1_OUTPUT' EXPORTING input = WA_/GBT/S_HU_MAINT-PACK_MAT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_HU_MAINT-PACK_MAT.
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_/GBT/S_HU_MAINT_STR,
HUMNR TYPE STRING,
LOGSYS TYPE STRING,
GROUP_INDEX TYPE STRING,
CREATED_DATE TYPE STRING,
CREATED_TIME TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_DATE TYPE STRING,
CHANGED_TIME TYPE STRING,
CHANGED_BY TYPE STRING,
HUMNR_TYPE TYPE STRING,
HU_ID TYPE STRING,
PACK_MAT TYPE STRING,END OF T_EKKO_STR. DATA: WA_/GBT/S_HU_MAINT_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_/GBT/S_HU_MAINT_STR-HUMNR sy-vline
WA_/GBT/S_HU_MAINT_STR-LOGSYS sy-vline
WA_/GBT/S_HU_MAINT_STR-GROUP_INDEX sy-vline
WA_/GBT/S_HU_MAINT_STR-CREATED_DATE sy-vline
WA_/GBT/S_HU_MAINT_STR-CREATED_TIME sy-vline
WA_/GBT/S_HU_MAINT_STR-CREATED_BY sy-vline
WA_/GBT/S_HU_MAINT_STR-CHANGED_DATE sy-vline
WA_/GBT/S_HU_MAINT_STR-CHANGED_TIME sy-vline
WA_/GBT/S_HU_MAINT_STR-CHANGED_BY sy-vline
WA_/GBT/S_HU_MAINT_STR-HUMNR_TYPE sy-vline
WA_/GBT/S_HU_MAINT_STR-HU_ID sy-vline
WA_/GBT/S_HU_MAINT_STR-PACK_MAT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.