Tagged: Oracle spatial 空间数据SQL查询操作相关实例

Oracle spatial 空间数据SQL查询操作相关实例rnrn–select dlbm,dlmc,trim(zldwdm) as zldwdm_1 from gzdt where nvl(zldwdm,’t’)=’t’ or zldwdm=”;rnupdate gzdt set ZLDWDM=’510113106′ where  nvl(zldwdm