determine data type dynamically

[Former Member]

Hi there. I've got a question. Is there some possibility to declare data type during program flow depending on some conditions

For example:

IF ( cond1 ) .
  DATA: var LIKE someitab1 .
ELSEIF ( cond2 ) .
  DATA: var LIKE someitab2 .
ENDIF .

I'll be thankful for help . Greetings .

[Former Member]

for this u can use field symbols

<fs-field> type any

[Former Member]

HI,

We can declare the variables based on Conditions.

[Former Member]

Check out this code:

PARAMETERS: P_TABLE LIKE DD03L-TABNAME.

FIELD-SYMBOLS: <FS_TABLE> TYPE TABLE,

<WA_TABLE> TYPE ANY.

DATA: XTABLE TYPE REF TO DATA." It tells compiler that the data object type will be defined at runtime

CREATE DATA XTABLE TYPE TABLE OF (P_TABLE)." It creates data XTABLE at runtime

ASSIGN XTABLE->* TO <FS_TABLE>." before using this field symbol in LOOP, its must be assigned

SELECT * FROM (P_TABLE) INTO TABLE <FS_TABLE> ORDER BY PRIMARY KEY.

LOOP AT <FS_TABLE> ASSIGNING <WA_TABLE>.

ENDLOOP.

[former_member203501]

if test = 'name1'.

field-symbols: <table1> type table ,

<field1> type any .

elseif test = 'name2'.

field-symbols: <table2> type table ,

<field2> type any .

endif .

[Former Member]

It will be better to define data and than assign it to field symbol at runtime.

Data : someitab1 type table of itab1, 
          someitab2 type table of itab2.

field-symbols : <f_itab> type table.

IF ( cond1 ).
assign SOMEITAB1[] to <f_itab>.
ELSEIF ( cond2 ) .
assign SOMEITAB2[] to <f_itab>.
ENDIF.

Similarly you can have condition for variable. Above example is for internal tables.

Regards,

Mohaiyuddin