problem in Get Satement

Hi all,

i have testing Get statement.the code is below...

TABLES: SPFLI, SFLIGHT, SBOOK.

START-OF-SELECTION.

WRITE 'Test Program for GET'.

GET SPFLI.

SKIP.

WRITE: / 'From:', SPFLI-CITYFROM,

'To:', SPFLI-CITYTO.

SKIP.

WRITE: / 'Carrid:', SFLIGHT-CARRID,

'Connid:', SFLIGHT-CONNID.

ULINE.

GET SBOOK.

WRITE: / 'Fldate:', SFLIGHT-FLDATE,

'Bookid:', SBOOK-BOOKID,

'Luggweight', SBOOK-LUGGWEIGHT.

ULINE.

but i m facing a problem on syntax check that

"SPFLI" is not defined for the current logical database.

what will i do.

suggess.