简单常用sql查询

[self.db executeUpdate:sql, record.recordID];

CREATE TABLE scene_record(id TEXT PRIMARY KEY, record_time TEXT, location TEXT,place TEXT,description TEXT,isUpdate TEXT,is_delete TEXT)

按生序查询，并指定查询值

SELECT * FROM scene_record where isUpdate = 1 or isUpdate = 2 order by record_id asc

按降序排列

SELECT * FROM scene_record where isUpdate = 1 or isUpdate = 2 order by record_id desc

条件查询

SELECT * FROM scene_record where isUpdate = 1 or isUpdate = 2

未指定查询值

select * from scene_record where name=?

查询最大id

select max(id) from scene_record

从搜索结果中搜索

select * from info_tag where parent_id = (select parent_id from info_tag where id=?)

带有or的条件搜索

SELECT * FROM scene_record_detail where (is_upload = 1 and is_delete = 0) or (is_upload = 2 and is_delete = 0)

插入语句：

插入表中的一列数据

insert into custom_classify (name) values(?)

[self.db executeUpdate:sql,classifyName];

插入全部数据：

insert into scene_record values(?,?,?,?,?,?,?)

[self.db executeUpdate:sql,record.recordID,record.recordTime,location, record.place, record.sceneRecordDescription, @"1", @"0"]；

插入指定列：

insert into scene_record (record_id,record_time,location,place,description,isUpdate,is_delete) values(?,?,?,?,?,?,?)

[self.dbexecuteUpdate:sql,record.recordID,record.recordTime,record.location,record.place,record.sceneRecordDescription,@"2",@"0"]；

更新语句：

根据record_id更新一列is_delete

update scene_record set is_delete = 1 where record_id = ?

[self.db executeUpdate:sql, record.recordID];

根据record_id跟新多列location，place，description，isUpdate

update scene_record set location = ?, place = ?, description = ?, isUpdate = 1 where record_id = ?

删除语句：

删除全部：

delete from test_table

PS：注意这里没有*