ABAP Select data from SAP table MSD_PMEM 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 MSD_PMEM 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 MSD_PMEM. 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 MSD_PMEM 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_MSD_PMEM TYPE STANDARD TABLE OF MSD_PMEM, WA_MSD_PMEM TYPE MSD_PMEM, 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: <MSD_PMEM> TYPE MSD_PMEM. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_MSD_PMEM. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM MSD_PMEM INTO TABLE IT_MSD_PMEM. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM MSD_PMEM * INTO TABLE @DATA(IT_MSD_PMEM2). *--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_MSD_PMEM INDEX 1 INTO DATA(WA_MSD_PMEM2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_MSD_PMEM ASSIGNING <MSD_PMEM>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSD_PMEM>-CONNECTMEM = 1.
<MSD_PMEM>-WRKPROCMEM = 1.
<MSD_PMEM>-LOCKMEMORY = 1.
<MSD_PMEM>-MAXWSPMEM = 1.
<MSD_PMEM>-OPTQRYMEM = 1.
ENDLOOP. LOOP AT IT_MSD_PMEM INTO WA_MSD_PMEM. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_MSD_PMEM-SQLCACMEM, sy-vline,
WA_MSD_PMEM-TARSRVMEM, sy-vline,
WA_MSD_PMEM-TTLSRVMEM, sy-vline,
WA_MSD_PMEM-USERCONCTS, sy-vline,
WA_MSD_PMEM-CACHEHIT, sy-vline,
WA_MSD_PMEM-DATACACHSZ, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MSD_PMEM 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_MSD_PMEM 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_MSD_PMEM INTO WA_MSD_PMEM. *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.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_MSD_PMEM_STR,
CONNECTMEM TYPE STRING,
WRKPROCMEM TYPE STRING,
LOCKMEMORY TYPE STRING,
MAXWSPMEM TYPE STRING,
OPTQRYMEM TYPE STRING,
SQLCACMEM TYPE STRING,
TARSRVMEM TYPE STRING,
TTLSRVMEM TYPE STRING,
USERCONCTS TYPE STRING,
CACHEHIT TYPE STRING,
DATACACHSZ TYPE STRING,
CACHESIZE TYPE STRING,
BUFFCOMMIT TYPE STRING,
FREEBUFFER TYPE STRING,
STLPAGECNT TYPE STRING,END OF T_EKKO_STR. DATA: WA_MSD_PMEM_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_MSD_PMEM_STR-CONNECTMEM sy-vline
WA_MSD_PMEM_STR-WRKPROCMEM sy-vline
WA_MSD_PMEM_STR-LOCKMEMORY sy-vline
WA_MSD_PMEM_STR-MAXWSPMEM sy-vline
WA_MSD_PMEM_STR-OPTQRYMEM sy-vline
WA_MSD_PMEM_STR-SQLCACMEM sy-vline
WA_MSD_PMEM_STR-TARSRVMEM sy-vline
WA_MSD_PMEM_STR-TTLSRVMEM sy-vline
WA_MSD_PMEM_STR-USERCONCTS sy-vline
WA_MSD_PMEM_STR-CACHEHIT sy-vline
WA_MSD_PMEM_STR-DATACACHSZ sy-vline
WA_MSD_PMEM_STR-CACHESIZE sy-vline
WA_MSD_PMEM_STR-BUFFCOMMIT sy-vline
WA_MSD_PMEM_STR-FREEBUFFER sy-vline
WA_MSD_PMEM_STR-STLPAGECNT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.