ABAP Select data from SAP table MYML1 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 MYML1 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 MYML1. 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 MYML1 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_MYML1 TYPE STANDARD TABLE OF MYML1,
WA_MYML1 TYPE MYML1,
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: <MYML1> TYPE MYML1.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_MYML1.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM MYML1
INTO TABLE IT_MYML1.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM MYML1
* INTO TABLE @DATA(IT_MYML12).
*--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_MYML1 INDEX 1 INTO DATA(WA_MYML12).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MYML1 ASSIGNING <MYML1>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<MYML1>-MANDT = 1.
<MYML1>-MYVER = 1.
<MYML1>-MYKEY = 1.
<MYML1>-MATNR = 1.
<MYML1>-MBLNR = 1.
ENDLOOP. LOOP AT IT_MYML1 INTO WA_MYML1. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_MYML1-MJAHR, sy-vline,
WA_MYML1-MBLPO, sy-vline,
WA_MYML1-BUDAT, sy-vline,
WA_MYML1-MYWRT, sy-vline,
WA_MYML1-MYWRN, sy-vline,
WA_MYML1-MYMNG, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MYML1 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_MYML1 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_MYML1 INTO WA_MYML1. *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 MATNR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_MYML1-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MYML1-MATNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field MBLNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MYML1-MBLNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MYML1-MBLNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GJAHR, internal->external for field MJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_MYML1-MJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MYML1-MJAHR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_MYML1-MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MYML1-MEINS.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field AWSYS CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_MYML1-AWSYS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_MYML1-AWSYS.
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_MYML1_STR,
MANDT TYPE STRING,
MYVER TYPE STRING,
MYKEY TYPE STRING,
MATNR TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
MBLPO TYPE STRING,
BUDAT TYPE STRING,
MYWRT TYPE STRING,
MYWRN TYPE STRING,
MYMNG TYPE STRING,
MEINS TYPE STRING,
BWTAR TYPE STRING,
BWART TYPE STRING,
AWSYS TYPE STRING,
PRGID TYPE STRING,
TIMEL TYPE STRING,END OF T_EKKO_STR. DATA: WA_MYML1_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_MYML1_STR-MANDT sy-vline
WA_MYML1_STR-MYVER sy-vline
WA_MYML1_STR-MYKEY sy-vline
WA_MYML1_STR-MATNR sy-vline
WA_MYML1_STR-MBLNR sy-vline
WA_MYML1_STR-MJAHR sy-vline
WA_MYML1_STR-MBLPO sy-vline
WA_MYML1_STR-BUDAT sy-vline
WA_MYML1_STR-MYWRT sy-vline
WA_MYML1_STR-MYWRN sy-vline
WA_MYML1_STR-MYMNG sy-vline
WA_MYML1_STR-MEINS sy-vline
WA_MYML1_STR-BWTAR sy-vline
WA_MYML1_STR-BWART sy-vline
WA_MYML1_STR-AWSYS sy-vline
WA_MYML1_STR-PRGID sy-vline
WA_MYML1_STR-TIMEL sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
