ABAP Select data from SAP table P2B2_MEHR 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 P2B2_MEHR 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 P2B2_MEHR. 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 P2B2_MEHR 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_P2B2_MEHR TYPE STANDARD TABLE OF P2B2_MEHR,
WA_P2B2_MEHR TYPE P2B2_MEHR,
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: <P2B2_MEHR> TYPE P2B2_MEHR.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_P2B2_MEHR.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM P2B2_MEHR
INTO TABLE IT_P2B2_MEHR.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM P2B2_MEHR
* INTO TABLE @DATA(IT_P2B2_MEHR2).
*--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_P2B2_MEHR INDEX 1 INTO DATA(WA_P2B2_MEHR2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2B2_MEHR ASSIGNING <P2B2_MEHR>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<P2B2_MEHR>-MANDT = 1.
<P2B2_MEHR>-DCT_PERNR = 1.
<P2B2_MEHR>-DCT_PABRJ = 1.
<P2B2_MEHR>-DCT_PABRP = 1.
<P2B2_MEHR>-DCT_CLTYP = 1.
ENDLOOP. LOOP AT IT_P2B2_MEHR INTO WA_P2B2_MEHR. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_P2B2_MEHR-DCT_ROWID, sy-vline,
WA_P2B2_MEHR-ENDDA, sy-vline,
WA_P2B2_MEHR-BEGDA, sy-vline,
WA_P2B2_MEHR-VTKEN, sy-vline,
WA_P2B2_MEHR-BEGUZ, sy-vline,
WA_P2B2_MEHR-ENDUZ, sy-vline.
ENDLOOP. *Add any further fields from structure WA_P2B2_MEHR 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_P2B2_MEHR 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_P2B2_MEHR INTO WA_P2B2_MEHR. *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 GJAHR, internal->external for field DCT_PABRJ CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_P2B2_MEHR-DCT_PABRJ IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_P2B2_MEHR-DCT_PABRJ.
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_P2B2_MEHR_STR,
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_PABRJ TYPE STRING,
DCT_PABRP TYPE STRING,
DCT_CLTYP TYPE STRING,
DCT_ROWID TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
VTKEN TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
VERSL TYPE STRING,
PBEG1 TYPE STRING,
PEND1 TYPE STRING,
PBEZ1 TYPE STRING,
PUNB1 TYPE STRING,
PBEG2 TYPE STRING,
PEND2 TYPE STRING,
PBEZ2 TYPE STRING,
PUNB2 TYPE STRING,
PBEG3 TYPE STRING,
PEND3 TYPE STRING,
PBEZ3 TYPE STRING,
PUNB3 TYPE STRING,
PBEG4 TYPE STRING,
PEND4 TYPE STRING,
PBEZ4 TYPE STRING,
PUNB4 TYPE STRING,
OBJPS TYPE STRING,
SEQNR TYPE STRING,END OF T_EKKO_STR. DATA: WA_P2B2_MEHR_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_P2B2_MEHR_STR-MANDT sy-vline
WA_P2B2_MEHR_STR-DCT_PERNR sy-vline
WA_P2B2_MEHR_STR-DCT_PABRJ sy-vline
WA_P2B2_MEHR_STR-DCT_PABRP sy-vline
WA_P2B2_MEHR_STR-DCT_CLTYP sy-vline
WA_P2B2_MEHR_STR-DCT_ROWID sy-vline
WA_P2B2_MEHR_STR-ENDDA sy-vline
WA_P2B2_MEHR_STR-BEGDA sy-vline
WA_P2B2_MEHR_STR-VTKEN sy-vline
WA_P2B2_MEHR_STR-BEGUZ sy-vline
WA_P2B2_MEHR_STR-ENDUZ sy-vline
WA_P2B2_MEHR_STR-VERSL sy-vline
WA_P2B2_MEHR_STR-PBEG1 sy-vline
WA_P2B2_MEHR_STR-PEND1 sy-vline
WA_P2B2_MEHR_STR-PBEZ1 sy-vline
WA_P2B2_MEHR_STR-PUNB1 sy-vline
WA_P2B2_MEHR_STR-PBEG2 sy-vline
WA_P2B2_MEHR_STR-PEND2 sy-vline
WA_P2B2_MEHR_STR-PBEZ2 sy-vline
WA_P2B2_MEHR_STR-PUNB2 sy-vline
WA_P2B2_MEHR_STR-PBEG3 sy-vline
WA_P2B2_MEHR_STR-PEND3 sy-vline
WA_P2B2_MEHR_STR-PBEZ3 sy-vline
WA_P2B2_MEHR_STR-PUNB3 sy-vline
WA_P2B2_MEHR_STR-PBEG4 sy-vline
WA_P2B2_MEHR_STR-PEND4 sy-vline
WA_P2B2_MEHR_STR-PBEZ4 sy-vline
WA_P2B2_MEHR_STR-PUNB4 sy-vline
WA_P2B2_MEHR_STR-OBJPS sy-vline
WA_P2B2_MEHR_STR-SEQNR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
