ABAP Select data from SAP table REG01 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 REG01 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 REG01. 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 REG01 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_REG01 TYPE STANDARD TABLE OF REG01,
WA_REG01 TYPE REG01,
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: <REG01> TYPE REG01.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_REG01.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM REG01
INTO TABLE IT_REG01.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM REG01
* INTO TABLE @DATA(IT_REG012).
*--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_REG01 INDEX 1 INTO DATA(WA_REG012).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_REG01 ASSIGNING <REG01>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<REG01>-GERTYPKZ = 1.
<REG01>-MUSTER = 1.
<REG01>-INTTYP = 1.
<REG01>-CHGTYP = 1.
<REG01>-K1 = 1.
ENDLOOP. LOOP AT IT_REG01 INTO WA_REG01. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_REG01-K2, sy-vline,
WA_REG01-K3, sy-vline,
WA_REG01-K4, sy-vline,
WA_REG01-K5, sy-vline,
WA_REG01-K6, sy-vline,
WA_REG01-K7, sy-vline.
ENDLOOP. *Add any further fields from structure WA_REG01 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_REG01 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_REG01 INTO WA_REG01. *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 MATN1, internal->external for field MUSTER CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_REG01-MUSTER IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG01-MUSTER.
WRITE:/ 'New Value:', ld_input.
*Conversion exit MATN1, internal->external for field GERTYP CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_REG01-GERTYP IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_REG01-GERTYP.
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_REG01_STR,
GERTYPKZ TYPE STRING,
MUSTER TYPE STRING,
INTTYP TYPE STRING,
CHGTYP TYPE STRING,
K1 TYPE STRING,
K2 TYPE STRING,
K3 TYPE STRING,
K4 TYPE STRING,
K5 TYPE STRING,
K6 TYPE STRING,
K7 TYPE STRING,
K8 TYPE STRING,
K9 TYPE STRING,
SPARTEXT TYPE STRING,
BISDATE TYPE STRING,
AENDDATE TYPE STRING,
ANSCHTXT TYPE STRING,
STATUS TYPE STRING,
GERTYP TYPE STRING,
L_TITEL01 TYPE STRING,
SPARTYP TYPE STRING,
MANDT TYPE STRING,
SPARTE TYPE STRING,
MESSART_TXT TYPE STRING,
SPARTYPTXT TYPE STRING,
ORDER_TEXT TYPE STRING,
NOTIF_TEXT TYPE STRING,
ISU_SERLV TYPE STRING,END OF T_EKKO_STR. DATA: WA_REG01_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_REG01_STR-GERTYPKZ sy-vline
WA_REG01_STR-MUSTER sy-vline
WA_REG01_STR-INTTYP sy-vline
WA_REG01_STR-CHGTYP sy-vline
WA_REG01_STR-K1 sy-vline
WA_REG01_STR-K2 sy-vline
WA_REG01_STR-K3 sy-vline
WA_REG01_STR-K4 sy-vline
WA_REG01_STR-K5 sy-vline
WA_REG01_STR-K6 sy-vline
WA_REG01_STR-K7 sy-vline
WA_REG01_STR-K8 sy-vline
WA_REG01_STR-K9 sy-vline
WA_REG01_STR-SPARTEXT sy-vline
WA_REG01_STR-BISDATE sy-vline
WA_REG01_STR-AENDDATE sy-vline
WA_REG01_STR-ANSCHTXT sy-vline
WA_REG01_STR-STATUS sy-vline
WA_REG01_STR-GERTYP sy-vline
WA_REG01_STR-L_TITEL01 sy-vline
WA_REG01_STR-SPARTYP sy-vline
WA_REG01_STR-MANDT sy-vline
WA_REG01_STR-SPARTE sy-vline
WA_REG01_STR-MESSART_TXT sy-vline
WA_REG01_STR-SPARTYPTXT sy-vline
WA_REG01_STR-ORDER_TEXT sy-vline
WA_REG01_STR-NOTIF_TEXT sy-vline
WA_REG01_STR-ISU_SERLV sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
