ABAP Select data from SAP table BAPIMEREQHEADER 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 BAPIMEREQHEADER 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 BAPIMEREQHEADER. 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 BAPIMEREQHEADER 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_BAPIMEREQHEADER TYPE STANDARD TABLE OF BAPIMEREQHEADER, WA_BAPIMEREQHEADER TYPE BAPIMEREQHEADER, 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: <BAPIMEREQHEADER> TYPE BAPIMEREQHEADER. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_BAPIMEREQHEADER. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM BAPIMEREQHEADER INTO TABLE IT_BAPIMEREQHEADER. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM BAPIMEREQHEADER * INTO TABLE @DATA(IT_BAPIMEREQHEADER2). *--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_BAPIMEREQHEADER INDEX 1 INTO DATA(WA_BAPIMEREQHEADER2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_BAPIMEREQHEADER ASSIGNING <BAPIMEREQHEADER>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIMEREQHEADER>-PREQ_NO = 1.
<BAPIMEREQHEADER>-PR_TYPE = 1.
<BAPIMEREQHEADER>-CTRL_IND = 1.
<BAPIMEREQHEADER>-GENERAL_RELEASE = 1.
<BAPIMEREQHEADER>-CREATE_IND = 1.
ENDLOOP. LOOP AT IT_BAPIMEREQHEADER INTO WA_BAPIMEREQHEADER. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_BAPIMEREQHEADER-ITEM_INTVL, sy-vline,
WA_BAPIMEREQHEADER-LAST_ITEM, sy-vline,
WA_BAPIMEREQHEADER-AUTO_SOURCE, sy-vline,
WA_BAPIMEREQHEADER-MEMORY, sy-vline,
WA_BAPIMEREQHEADER-HOLD_COMPLETE, sy-vline,
WA_BAPIMEREQHEADER-HOLD_UNCOMPLETE, sy-vline.
ENDLOOP. *Add any further fields from structure WA_BAPIMEREQHEADER 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_BAPIMEREQHEADER 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_BAPIMEREQHEADER INTO WA_BAPIMEREQHEADER. *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 PREQ_NO CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_BAPIMEREQHEADER-PREQ_NO IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_BAPIMEREQHEADER-PREQ_NO.
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_BAPIMEREQHEADER_STR,
PREQ_NO TYPE STRING,
PR_TYPE TYPE STRING,
CTRL_IND TYPE STRING,
GENERAL_RELEASE TYPE STRING,
CREATE_IND TYPE STRING,
ITEM_INTVL TYPE STRING,
LAST_ITEM TYPE STRING,
AUTO_SOURCE TYPE STRING,
MEMORY TYPE STRING,
HOLD_COMPLETE TYPE STRING,
HOLD_UNCOMPLETE TYPE STRING,
PARK_COMPLETE TYPE STRING,
PARK_UNCOMPLETE TYPE STRING,
MEMORYTYPE TYPE STRING,END OF T_EKKO_STR. DATA: WA_BAPIMEREQHEADER_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_BAPIMEREQHEADER_STR-PREQ_NO sy-vline
WA_BAPIMEREQHEADER_STR-PR_TYPE sy-vline
WA_BAPIMEREQHEADER_STR-CTRL_IND sy-vline
WA_BAPIMEREQHEADER_STR-GENERAL_RELEASE sy-vline
WA_BAPIMEREQHEADER_STR-CREATE_IND sy-vline
WA_BAPIMEREQHEADER_STR-ITEM_INTVL sy-vline
WA_BAPIMEREQHEADER_STR-LAST_ITEM sy-vline
WA_BAPIMEREQHEADER_STR-AUTO_SOURCE sy-vline
WA_BAPIMEREQHEADER_STR-MEMORY sy-vline
WA_BAPIMEREQHEADER_STR-HOLD_COMPLETE sy-vline
WA_BAPIMEREQHEADER_STR-HOLD_UNCOMPLETE sy-vline
WA_BAPIMEREQHEADER_STR-PARK_COMPLETE sy-vline
WA_BAPIMEREQHEADER_STR-PARK_UNCOMPLETE sy-vline
WA_BAPIMEREQHEADER_STR-MEMORYTYPE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.