Mysql 根據(jù)一個表數(shù)據(jù)更新另一個表的某些字段(sql語句)

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 '模版編碼',
 TEMPLATE_NAME   VARCHAR(300) BINARY comment '模版名稱',
 CREATE_TIME   datetime DEFAULT NULL COMMENT '創(chuàng)建時間',
 CREATE_BY varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '創(chuàng)建者' ,
 UPDATE_BY varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci COMMENT '更新者' ,
 UPDATE_DATE datetime COMMENT '更新時間' ,
 constraint PK_U_TEMPLATE primary key (ID)
)DEFAULT CHARSET=utf8 comment '模版表';
DROP TABLE IF EXISTS TEMPLATE_TEMP_CREATE;
-- 模版臨時表
CREATE TABLE TEMPLATE_TEMP_CREATE (
 ID     INT NOT NULL AUTO_INCREMENT comment '模版表ID',
 OBJECT_ID   VARCHAR(50) BINARY comment '模版編碼',
 OPERATER_NAME varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '更新者' ,
 CREATE_TIME datetime NOT NULL COMMENT '更新時間' ,
 constraint PK_U_TEMPLATE primary key (ID)
)DEFAULT CHARSET=utf8 comment '模版臨時表';
-- 修改創(chuàng)建人創(chuàng)建時間到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 ;