sqlite3 语法

Posted 2020-10-11 aotuman

https://www.sqlite.org/index.html  官网

 http://www.runoob.com/sqlite/sqlite-data-types.html

http://www.w3school.com.cn/sql/sql_where.asp

 

表名不能以数字开头

CREATE TABLE IF NOT EXISTS %@ (ID INTEGER PRIMARY KEY AUTOINCREMENT , Name TEXT NOT NULL, Voice TEXT NOT NULL, CreatedTime TEXT NOT NULL, Type TEXT NOT NULL)

主键自增 :PRIMARY KEY AUTOINCREMENT

判断表是否存在: IF NOT EXISTS

不允许为空

 

REPLACE INTO %@ (ID, Name, Voice, CreatedTime, Type) VALUES (NULL, ?, ?, ?, ?)

有则更新,无则添加 REPLACE INTO

 

SELECT * FROM %@ WHERE Type=‘%@‘ ORDER BY ID DESC LIMIT  %d ,%d

字符判断字符要加单引号 Type=‘%@‘

倒叙 DESC

分页LIMIT