Mysql 根据一个表数据更新另一个表的某些字段(sql语句)

DROP TABLE IF EXISTS T_U_TEMPLATE;-- 模版表CREATE TABLE T_U_TEMPLATE ( ID     INT NOT NULL AUTO_INCREMENT comment '模版表ID', TEMPLATE_CODE   VARCHAR(50) BINARY comment '模版编码', TEMPLATE_NAME   VARCHAR(300) BINARY comment '模版名称', CREATE_TIME   datetime DEFAULT NULL COMMENT '创建时间', CREATE_BY varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '创建者' , UPDATE_BY varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci COMMENT '更新者' , UPDATE_DATE datetime COMMENT '更新时间' , constraint PK_U_TEMPLATE primary key (ID))DEFAULT CHARSET=utf8 comment '模版表';DROP TABLE IF EXISTS TEMPLATE_TEMP_CREATE;-- 模版临时表CREATE TABLE TEMPLATE_TEMP_CREATE ( ID     INT NOT NULL AUTO_INCREMENT comment '模版表ID', OBJECT_ID   VARCHAR(50) BINARY comment '模版编码', OPERATER_NAME varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '更新者' , CREATE_TIME datetime NOT NULL COMMENT '更新时间' , constraint PK_U_TEMPLATE primary key (ID))DEFAULT CHARSET=utf8 comment '模版临时表';-- 修改创建人创建时间到T_U_TEMPLATE表UPDATE T_U_TEMPLATE a,TEMPLATE_TEMP_CREATE b SET a.CREATE_TIME=b.CREATE_TIME WHERE a.TEMPLATE_CODE = b.OBJECT_ID;UPDATE T_U_TEMPLATE a,TEMPLATE_TEMP_CREATE b SET a.CREATE_BY=b.OPERATER_NAME WHERE a.TEMPLATE_CODE = b.OBJECT_ID ;