摘要:
oracle中查询、禁用、启用、删除表外键1.查询所有表的外键的:select table_name, constraint_name from user_constraints where constraint_type = 'R';2.禁用所有外键约束, 使用下面的sql生成对应sql脚本:select 'alter table ' || table_name || ' disable constraint ' || constraint_name || ';' from user_constraints where cons 阅读全文
摘要:
=LEFT(I2,FIND("°",I2)-1)+(MID(I2,FIND("°",I2)+1,FIND("′",I2)-FIND("°",I2)-1)+MID(I2,FIND("′",I2)+1,LEN(I2)-FIND("′",I2)-1)/60)/60 阅读全文