标签：delete ddl 修改 写法 方法 generated 插入 lis key
1.先说插入数据到mysql中的mapper.xml写法:
参数都是list<model>类型
<!--批量插入--> <insert id="batchInsertStudent" parameterType="java.util.List"> INSERT INTO STUDENT (id,name,sex,tel,address) VALUES <foreach collection="list" item="item" index="index" separator="," > (#{item.id},#{item.name},#{item.sex},#{item.tel},#{item.address}) </foreach> </insert> <!--批量删除--> <delete id="batchDeleteStudent" parameterType="java.util.List"> DELETE FROM STUDENT WHERE id IN <foreach collection="list" index="index" item="item" open="(" separator="," close=")"> #{item} </foreach> </delete> <!--批量修改--> <update id="batchUpdateStudentWithMap" parameterType="java.util.Map" > UPDATE STUDENT SET name = #{name} WHERE id IN <foreach collection="idList" index="index" item="item" open="(" separator="," close=")"> #{item} </foreach> </update>
2.oracle这种做法会报”java.sql.SQLException: ORA-00933: SQL 命令未正确结束“ 错误
正确做法如下: 参数都是list<model>类型
第一种:使用 insert all into table(...) values(...) into table(...) values(...) select * from dual; 语句来解决
<insert id="addList" parameterType="java.util.List" useGeneratedKeys="false"> INSERT ALL <foreach item="item" index="index" collection="list"> INTO T_APPLAUD ( ID, USER_ID, BUSINESS_TYPE, PRODUCT_ID, CREATE_TIME ) VALUES ( #{item.id, jdbcType=NUMERIC}, #{item.userId, jdbcType=VARCHAR}, #{item.businessType, jdbcType=VARCHAR}, #{item.productId, jdbcType=VARCHAR}, #{item.createdTime, jdbcType=NUMERIC} ) </foreach> SELECT 1 FROM DUAL </insert>
如果还报”java.sql.SQLException: ORA-00933: SQL 命令未正确结束“ 错误,原因可能是mybatis批量插入oracle时没有显式指定为 useGeneratedKeys="false" 不然报错~~~
另外一种方法是 insert into table(...) (select ... from dual) union all (select ... from dual)
<insert id="addList" parameterType="java.util.List" useGeneratedKeys="false"> INSERT INTO T_APPLAUD ( ID, USER_ID, BUSINESS_TYPE, PRODUCT_ID, CREATE_TIME ) <foreach item="item" index="index" collection="list" separator="union all"> ( SELECT #{item.id}, #{item.userId}, #{item.businessType}, #{item.productId}, #{item.createdTime} FROM DUAL ) </foreach> </insert>
标签：delete ddl 修改 写法 方法 generated 插入 lis key
原文地址：http://www.cnblogs.com/xujingyang/p/7325885.html
