直接用sql语句操作数据库的接口
在该接口中的sql字符串要是DB能识别的SQL语句
The interface of operating database with SQL statement directly
The SQL string in this interface is the SQL statement that DB can recognize
Object to SQL string for Suid (select,update,insert,delete)
entity must not be null
根据entity对象转换成DB能识别的sql语句(包括:select,update,insert,delete)
entity 参数不能为null.
数据库操作接口,包括查,改,增,删 Suid (select,update,insert,delete)
默认不处理null和空字符串
Database operation: Suid (select,update,insert,delete)
the null and empty string are not handled by default