＆＃34; SQLite管理器查询错误＆＃34;

Question

我想从另一个表中更新一个表的列

UPDATE tbl_relations SET tbl_relations.WANTED = table_wanted.WANTED FROM table_wanted , tbl_relations  WHERE table_wanted.M_V_NO = tbl_relations.M_V_NO

SQLite管理器中的错误消息是

near ".": syntax error: 

Answer 1

尝试以下内容（适用于带有虚假数据的SQLite）：

UPDATE tbl_relations
SET tbl_relations.WANTED = (SELECT w.WANTED 
                            FROM table_wanted w
                            WHERE w.M_V_NO = tbl_relations.M_V_NO) 
    WHERE tbl_relations.M_V_NO IN (SELECT w.M_V_NO
                                   FROM table_wanted w 
                                   WHERE w.M_V_NO = tbl_relations.M_V_NO)

希望有所帮助。