新增语句
INSERT INTO [table] ([column],[column],[column]) VALUES(?,?,?)
删除语句
DELETE FROM [table] WHERE [column] = ?
DELETE FROM vod WHERE id= 1
修改语句
UPDATE [table] SET [column] = ? WHERE [column] = ?
查询语句
查询单条记录的所有字段
SELECT * FROM [table] WHERE [column] = ?
查询所有记录的所有字段
// asc代表:以column字段,升序排列。desc为降序
SELECT * FROM [table] ORDER BY [column] ASC
分页查询
// 1.offset指定从哪个索引开始,默认从0开始
// 2.limit指定查询几条记录
SELECT * FROM [table] LIMIT [offset], [limit]
查询指定记录的指定字段
SELECT [column1], [column2] FROM [table] WHERE [column1] = ?