ABAP Select data from SAP table LDLHD 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 LDLHD 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 LDLHD. 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 LDLHD 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_LDLHD TYPE STANDARD TABLE OF LDLHD, WA_LDLHD TYPE LDLHD, 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: <LDLHD> TYPE LDLHD. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_LDLHD. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM LDLHD INTO TABLE IT_LDLHD. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM LDLHD * INTO TABLE @DATA(IT_LDLHD2). *--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_LDLHD INDEX 1 INTO DATA(WA_LDLHD2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_LDLHD ASSIGNING <LDLHD>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<LDLHD>-MANDT = 1.
<LDLHD>-LNID = 1.
<LDLHD>-ZAEHL = 1.
<LDLHD>-ANDAT = 1.
<LDLHD>-ANNAM = 1.
ENDLOOP. LOOP AT IT_LDLHD INTO WA_LDLHD. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_LDLHD-AEDAT, sy-vline,
WA_LDLHD-AENAM, sy-vline,
WA_LDLHD-NO_LBAL, sy-vline,
WA_LDLHD-LRATE, sy-vline,
WA_LDLHD-LANTU, sy-vline,
WA_LDLHD-LUNIT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_LDLHD 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_LDLHD 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_LDLHD INTO WA_LDLHD. *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 CUNIT, internal->external for field LUNIT CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_LDLHD-LUNIT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LDLHD-LUNIT.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field LTIUN CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_LDLHD-LTIUN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LDLHD-LTIUN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field EX_UNIT CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_LDLHD-EX_UNIT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LDLHD-EX_UNIT.
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_LDLHD_STR,
MANDT TYPE STRING,
LNID TYPE STRING,
ZAEHL TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
NO_LBAL TYPE STRING,
LRATE TYPE STRING,
LANTU TYPE STRING,
LUNIT TYPE STRING,
LTIUN TYPE STRING,
EX_UNIT TYPE STRING,
RITT TYPE STRING,
LINE TYPE STRING,
LINE_TXT TYPE STRING,
WERKS TYPE STRING,
TAKTSD TYPE STRING,
LTYPE TYPE STRING,
MULTI_WERKS TYPE STRING,
RITT_FLG TYPE STRING,
VBKZ TYPE STRING,END OF T_EKKO_STR. DATA: WA_LDLHD_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_LDLHD_STR-MANDT sy-vline
WA_LDLHD_STR-LNID sy-vline
WA_LDLHD_STR-ZAEHL sy-vline
WA_LDLHD_STR-ANDAT sy-vline
WA_LDLHD_STR-ANNAM sy-vline
WA_LDLHD_STR-AEDAT sy-vline
WA_LDLHD_STR-AENAM sy-vline
WA_LDLHD_STR-NO_LBAL sy-vline
WA_LDLHD_STR-LRATE sy-vline
WA_LDLHD_STR-LANTU sy-vline
WA_LDLHD_STR-LUNIT sy-vline
WA_LDLHD_STR-LTIUN sy-vline
WA_LDLHD_STR-EX_UNIT sy-vline
WA_LDLHD_STR-RITT sy-vline
WA_LDLHD_STR-LINE sy-vline
WA_LDLHD_STR-LINE_TXT sy-vline
WA_LDLHD_STR-WERKS sy-vline
WA_LDLHD_STR-TAKTSD sy-vline
WA_LDLHD_STR-LTYPE sy-vline
WA_LDLHD_STR-MULTI_WERKS sy-vline
WA_LDLHD_STR-RITT_FLG sy-vline
WA_LDLHD_STR-VBKZ sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.