sqlite删除字段时提示附近有语法错误，怎么解决呢？sqlite中ALTER TABLE语句不支持DROP COLUMN，只有RENAME 和ADD
解决办法：
create table _temp as select _id,name,age,balance from person;
select * from _temp;
2.删除原表
drop table person;
3.把临时表命名成原表
alter table _temp rename to person;sqlite删除字段办法 near 'drop':syntax error;
create table _temp as select _id,name,age,balance from person;