Dinamic Select

[Former Member]

Hi all,

I am trying to do a dynamic select in which I don´t know which are going to be the conditions of the clause WHERE.

This is my code;

DATA: BEGIN OF it_selopt OCCURS 0,
        field      TYPE string,
        value      TYPE string,
      END OF it_selopt,
      wa_selopt LIKE LINE OF it_selopt.

DATA cond_syntax TYPE string.

                ............

it_selopt-field = 'MATNR'.
it_selopt-value = 'Hello'.
APPEND it_selopt.


LOOP AT it_selopt.
  wa_selopt = it_selopt.

* First condition
  AT FIRST.
       CONCATENATE wa_selopt-field '=' wa_selopt-value
         INTO cond_syntax SEPARATED BY space.
    CONTINUE.  "
  ENDAT.
* Other conditions  
       CONCATENATE cond_syntax 'AND' wa_selopt-field '=' wa_selopt-value
            INTO cond_syntax SEPARATED BY space.
ENDLOOP.


TRY. 
    SELECT SINGLE * 
           FROM eban 
           WHERE (cond_syntax). 

  CATCH cx_sy_dynamic_osql_error. 
    MESSAGE `Wrong WHERE condition!` TYPE 'I'. 
ENDTRY.

The problem is that in runtime gives a syntax error for the following thing:

In runtime the variable cond_syntax has the following: MATNR = Hello

And it should have this: MATNR = 'Hello'

within quotation marks.

Because if it does not take Hello as if it was a variable.

Also I have tried the following thing:

DATA: field_2_read TYPE string.
  DATA: d_tabix TYPE n.

  LOOP AT it_selopt.
       wa_selopt = it_selopt.
       d_tabix = sy-tabix.
       CONCATENATE 'IT_SELOPT[' d_tabix ']-low' INTO field_2_read.

* First condition
       AT FIRST.
          CONCATENATE wa_selopt-field '=' field_2_read  
            INTO cond_syntax SEPARATED BY space.
          CONTINUE.
       ENDAT.

* Other conditions  
       CONCATENATE cond_syntax 'AND' wa_selopt-field '=' field_2_read 
            INTO cond_syntax SEPARATED BY space.
  ENDLOOP.

But it continues giving me a error.

Any idea how?

Thanks in advance

[ThomasZloch]

it_selopt-value = '''Hello'''.

Thomas