SQL message: transaction rolled back by lock wait timeout; SQL 131

Hi,

There is a table which already has about 77 lakh records. The modify on it gives the following error.

SQL error "SQL code: 131" occurred while accessing table "/PSMP/D_UACTID".

(runtime error DBSQL_SQL_ERROR)

(SQL statement:MODIFY /psmp/d_uactid FROM TABLE lt_uactid.)

Did anyone face this kind of an issue. If yes, kindly share the learning.

Thanks and Regards,

Madhura Lobo