ORACLE UPDATE SELECT 联合使用

table & sql 环境准备

1 要修改的数据

select empid,religion_code from PERSONAL_INFO_TEMP_WANG;

2 修改数据的来源

  SELECT  SP.CODE_NO, 

         S1.CONTENT CODE_NAME

        FROM SY_CODE        T,

            SY_CODE_PARAM  SP,

             SY_GLOBAL_NAME S1

       WHERE T.PARENT_CODE_NO = '124566'

          AND T.CODE_NO = SP.CODE_NO

          AND SP.CPNY_ID = 'I11'

         AND T.CODE_NO = S1.NO(+)

      AND S1.LANGUAGE(+)='en'

        AND T.ACTIVITY = 1; 

 

3 修改结果

RELIGION_CODE字段已经由相应的字符变为数字.

执行SQL

update PERSONAL_INFO_TEMP_WANG a -- 使用别名

   set religion_code =  (select b.CODE_NO 

                                from (SELECT SP.CODE_NO, S1.CONTENT CODE_NAME

                                        FROM SY_CODE        T,

                                             SY_CODE_PARAM  SP,

                                             SY_GLOBAL_NAME S1

                                       WHERE T.PARENT_CODE_NO = '124566'

                                         AND T.CODE_NO = SP.CODE_NO

                                         AND SP.CPNY_ID = 'I11'

                                         AND T.CODE_NO = S1.NO(+)

                                         AND S1.LANGUAGE(+) = 'en'

                                         AND T.ACTIVITY = 1  ) b

                               where upper(a.religion_code) = upper(b.CODE_NAME));

参考文章