ABAP Select data from SAP table REG42_DEV_INPUT 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 REG42_DEV_INPUT 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 REG42_DEV_INPUT. 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 REG42_DEV_INPUT 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_REG42_DEV_INPUT TYPE STANDARD TABLE OF REG42_DEV_INPUT,
WA_REG42_DEV_INPUT TYPE REG42_DEV_INPUT,
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: <REG42_DEV_INPUT> TYPE REG42_DEV_INPUT.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_REG42_DEV_INPUT.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM REG42_DEV_INPUT
INTO TABLE IT_REG42_DEV_INPUT.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM REG42_DEV_INPUT
* INTO TABLE @DATA(IT_REG42_DEV_INPUT2).
*--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_REG42_DEV_INPUT INDEX 1 INTO DATA(WA_REG42_DEV_INPUT2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_REG42_DEV_INPUT ASSIGNING <REG42_DEV_INPUT>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<REG42_DEV_INPUT>-EAGRUPPE = 1.
<REG42_DEV_INPUT>-KOMGRP = 1.
<REG42_DEV_INPUT>-MESSDRCK = 1.
<REG42_DEV_INPUT>-UEBERVER = 1.
<REG42_DEV_INPUT>-PLOMBDAT = 1.
ENDLOOP. LOOP AT IT_REG42_DEV_INPUT INTO WA_REG42_DEV_INPUT. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_REG42_DEV_INPUT-HERST, sy-vline,
WA_REG42_DEV_INPUT-BGLNUM, sy-vline,
WA_REG42_DEV_INPUT-UMBAUGR, sy-vline,
WA_REG42_DEV_INPUT-PARAMETR, sy-vline,
WA_REG42_DEV_INPUT-PLOMBE, sy-vline,
WA_REG42_DEV_INPUT-TYPBZ, sy-vline.
ENDLOOP. *Add any further fields from structure WA_REG42_DEV_INPUT 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_REG42_DEV_INPUT 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_REG42_DEV_INPUT INTO WA_REG42_DEV_INPUT. *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 EAGRUPPE CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_REG42_DEV_INPUT-EAGRUPPE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG42_DEV_INPUT-EAGRUPPE.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field KOMGRP CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_REG42_DEV_INPUT-KOMGRP IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG42_DEV_INPUT-KOMGRP.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field ZWGRUPPE CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_REG42_DEV_INPUT-ZWGRUPPE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG42_DEV_INPUT-ZWGRUPPE.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field WGRUPPE CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_REG42_DEV_INPUT-WGRUPPE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG42_DEV_INPUT-WGRUPPE.
WRITE:/ 'New Value:', ld_input.
*Conversion exit RAT11, internal->external for field RATING CALL FUNCTION 'CONVERSION_EXIT_RAT11_OUTPUT' EXPORTING input = WA_REG42_DEV_INPUT-RATING IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG42_DEV_INPUT-RATING.
WRITE:/ 'New Value:', ld_input.
*Conversion exit PVOLT, internal->external for field P_VOLTAGE CALL FUNCTION 'CONVERSION_EXIT_PVOLT_OUTPUT' EXPORTING input = WA_REG42_DEV_INPUT-P_VOLTAGE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG42_DEV_INPUT-P_VOLTAGE.
WRITE:/ 'New Value:', ld_input.
*Conversion exit SVOLT, internal->external for field S_VOLTAGE CALL FUNCTION 'CONVERSION_EXIT_SVOLT_OUTPUT' EXPORTING input = WA_REG42_DEV_INPUT-S_VOLTAGE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG42_DEV_INPUT-S_VOLTAGE.
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_REG42_DEV_INPUT_STR,
EAGRUPPE TYPE STRING,
KOMGRP TYPE STRING,
MESSDRCK TYPE STRING,
UEBERVER TYPE STRING,
PLOMBDAT TYPE STRING,
HERST TYPE STRING,
BGLNUM TYPE STRING,
UMBAUGR TYPE STRING,
PARAMETR TYPE STRING,
PLOMBE TYPE STRING,
TYPBZ TYPE STRING,
ZSPANNS TYPE STRING,
ZSTROMS TYPE STRING,
ZSPANNP TYPE STRING,
ZSTROMP TYPE STRING,
ZWGRUPPE TYPE STRING,
WGRUPPE TYPE STRING,
PRIMWNR1 TYPE STRING,
SEKWNR1 TYPE STRING,
PRIMWNR2 TYPE STRING,
SEKWNR2 TYPE STRING,
SERVICE_PROV TYPE STRING,
EGERR_INFO TYPE STRING,
PPM_METER TYPE STRING,
LOSSDTGROUP TYPE STRING,
RATING TYPE STRING,
P_VOLTAGE TYPE STRING,
S_VOLTAGE TYPE STRING,END OF T_EKKO_STR. DATA: WA_REG42_DEV_INPUT_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_REG42_DEV_INPUT_STR-EAGRUPPE sy-vline
WA_REG42_DEV_INPUT_STR-KOMGRP sy-vline
WA_REG42_DEV_INPUT_STR-MESSDRCK sy-vline
WA_REG42_DEV_INPUT_STR-UEBERVER sy-vline
WA_REG42_DEV_INPUT_STR-PLOMBDAT sy-vline
WA_REG42_DEV_INPUT_STR-HERST sy-vline
WA_REG42_DEV_INPUT_STR-BGLNUM sy-vline
WA_REG42_DEV_INPUT_STR-UMBAUGR sy-vline
WA_REG42_DEV_INPUT_STR-PARAMETR sy-vline
WA_REG42_DEV_INPUT_STR-PLOMBE sy-vline
WA_REG42_DEV_INPUT_STR-TYPBZ sy-vline
WA_REG42_DEV_INPUT_STR-ZSPANNS sy-vline
WA_REG42_DEV_INPUT_STR-ZSTROMS sy-vline
WA_REG42_DEV_INPUT_STR-ZSPANNP sy-vline
WA_REG42_DEV_INPUT_STR-ZSTROMP sy-vline
WA_REG42_DEV_INPUT_STR-ZWGRUPPE sy-vline
WA_REG42_DEV_INPUT_STR-WGRUPPE sy-vline
WA_REG42_DEV_INPUT_STR-PRIMWNR1 sy-vline
WA_REG42_DEV_INPUT_STR-SEKWNR1 sy-vline
WA_REG42_DEV_INPUT_STR-PRIMWNR2 sy-vline
WA_REG42_DEV_INPUT_STR-SEKWNR2 sy-vline
WA_REG42_DEV_INPUT_STR-SERVICE_PROV sy-vline
WA_REG42_DEV_INPUT_STR-EGERR_INFO sy-vline
WA_REG42_DEV_INPUT_STR-PPM_METER sy-vline
WA_REG42_DEV_INPUT_STR-LOSSDTGROUP sy-vline
WA_REG42_DEV_INPUT_STR-RATING sy-vline
WA_REG42_DEV_INPUT_STR-P_VOLTAGE sy-vline
WA_REG42_DEV_INPUT_STR-S_VOLTAGE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
