Dynamic Table Creation

[Former Member]

I am trying to create a dynamic table based on a transparent table, but the component table returned by method <b>l_r_structype->get_components( )</b> does not contain the fields in an .include structure.

Does anyone know of a way around this?

  l_r_structype ?= cl_abap_typedescr=>describe_by_name( p_tbl ).

  l_t_comp_tab = l_r_structype->get_components( ).

  LOOP AT l_t_comp_tab INTO l_s_comp_tab.
    WRITE:/ l_s_comp_tab-name.
  ENDLOOP.

LOGDPID          
OBJVERS          
VARIANT          
SOURCE           
TYP              
LOGSYS           
LOGDPID_N        
FIRSTFLAG        
UNAME            
TIMESTAMP        
OLTPSOURCE       
OLTPTYP          
GENERATED        
CRT_PACKAGE      

From FM DB_GET_TABLE_FIELDS (included fields are bold-faced):

LOGDPID                 
OBJVERS                 
VARIANT                 
SOURCE                  
TYP                     
LOGSYS                  
LOGDPID_N               
FIRSTFLAG               
UNAME                   
TIMESTAMP       
<b>        
OBJSTAT                 
CONTREL                 
CONTTIMESTMP            
OWNER                   
BWAPPL                  
</b>
OLTPSOURCE              
OLTPTYP                 
GENERATED               
CRT_PACKAGE             

[RichHeilman]

Please see the example program. Does this pull all of the fields?

report zrich_0001 .


type-pools : abap.

data : it_details type abap_compdescr_tab,
       wa_details type abap_compdescr.

data : ref_descr type ref to cl_abap_structdescr.

selection-screen begin of block b1 with frame title text .
parameters: p_table(30) type c.
selection-screen end of block b1.

* Get the structure of the table.
<b>ref_descr ?= cl_abap_typedescr=>describe_by_name( p_table ).
it_details[] = ref_descr->components[].</b>

loop at it_details into wa_details.
  write:/ wa_details-name.
endloop.

Regards,

Rich Heilman

[Former Member]

It sure does. Thanks. I'll have to study it to see how it differs.

[RichHeilman]

What is your DATA statment for l_r_structype?

Regards,

Rich Heilman

[Former Member]

It is

l_r_structype        TYPE REF TO cl_abap_structdescr,

Seems similar to your:

data : ref_descr type ref to cl_abap_structdescr.

statement.

[RichHeilman]

What version of SAP are you on?

Regards,

Rich Heilman

[Former Member]

My version gets the component table from a method call

l_t_comp_tab = l_r_structype->get_components( ).

whereas yours references it directly.

it_details[] = ref_descr->components[].

I wonder if that is the difference.

[Former Member]

We're on BW, kernel version 6.40

[RichHeilman]

In my 46c system, It doesn't seem that the method get_components exists for this class.

Regards.

Rich Heilman

[Former Member]

This code will help you to create a workarea and display the contents of the transparent table you specify.

************************************

REPORT ZMART_DYNAMIC_TABLE .

PARAMETERS : tname(30).

DATA: dref TYPE REF TO DATA,tab type ref to data.

*data tname TYPE string.

field-symbols : <f> TYPE any,<fc> type any,<fcd>,<ft> type standard table.

*tname = TABNAME.

CREATE DATA dref TYPE (tname).

ASSIGN dref->* TO <f>.

create data tab like table of <f>.

assign tab->* to <ft>.

SELECT * INTO table <ft> from (tname).

LOOP AT <ft> INTO <f>.

do.

assign component sy-index

of structure <f> to <fcd>.

if sy-subrc <> 0.

exit.

endif.

if sy-index = 1.

write:/ <fcd>.

else.

write: <fcd>.

endif.

enddo.

ENDLOOP.

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