The cci_col_seq_insert function inserts a member at the index-th (base:1) position of the sequence attribute values. The following example shows how to insert "a" at the first position of the sequence attribute values.
cci_col_seq_insert(con_id, oid_str, seq_attr, 1, "a", err_buf);
intcci_col_seq_insert (int conn_handle, char *oid_str, char *col_attr, int index, char *value, T_CCI_ERROR *err_buf)