mybatis+mysql 通过sql脚本生成mapper的部分内容

SELECT concat('<if test="', COLUMN_NAME, ' != null"> ', COLUMN_NAME, ',</if>')  FROM information_schema.COLUMNS
WHERE TABLE_NAME = 'view_opportunity' AND TABLE_SCHEMA = 'helenbergh_mcrm_pro';

SELECT concat('<if test="', COLUMN_NAME, ' != null"> #{', COLUMN_NAME, '},</if>')  FROM information_schema.COLUMNS
WHERE TABLE_NAME = 'view_opportunity' AND TABLE_SCHEMA = 'helenbergh_mcrm_pro';

SELECT concat('<if test="', COLUMN_NAME, ' != null"> ', COLUMN_NAME, ' = #{', COLUMN_NAME, '},</if>')  FROM information_schema.COLUMNS
WHERE TABLE_NAME = 'view_opportunity' AND TABLE_SCHEMA = 'helenbergh_mcrm_pro';

SELECT concat('private ',
              CASE
                WHEN DATA_TYPE = 'varchar' OR DATA_TYPE = 'nvarchar' OR DATA_TYPE = 'char' THEN 'String '
                WHEN DATA_TYPE = 'bigint' OR DATA_TYPE = 'int' THEN 'Integer '
                WHEN DATA_TYPE = 'datetime' OR DATA_TYPE = 'timestamp' THEN 'Date '
                WHEN DATA_TYPE = 'decimal' OR DATA_TYPE = 'timestamp' THEN 'BigDecimal '
                ELSE concat('****', DATA_TYPE, '****')
              END
           , COLUMN_NAME, ';')
FROM information_schema.COLUMNS
WHERE TABLE_NAME = 'view_opportunity' AND TABLE_SCHEMA = 'helenbergh_mcrm_pro';