"create table mytable (m_id integer identity(1,1) primary key,m_class varchar(50) not null default ‘AAA‘,m_int integer not null,m_numeric NUMERIC(6,2),m_money money not null default 0.00,m_memo text,m_date date default date(),m_boolean bit default yes,m_blob OLEObject,m_double double,m_float real)"
‘创建表
‘m_id integer identity(1,1) primary key自动编号字段并制作主键
‘m_class varchar(50) not null default ‘AAA‘文本型，长度50，非空，默认值：AAA
‘m_int integer not null数字，长整型，非空
‘m_numeric NUMERIC(6,2)数字,小数，精度6，数值范围2
‘m_money money not null default 0.00货币，必添字段（非空）,默认0
‘m_memo text备注
‘m_date date default date()日期/时间，默认当前日期（年月日）
"DROP TABLE link1"
‘删除表
"select * into newaprain from oldaprain"‘复制表
"select * into newaprain from oldaprain where 1=0"‘复制表的定义
"ALTER TABLE link1 ADD COLUMN [order] integer default 0"
‘在表中添加字段
"ALTER TABLE link1 DROP COLUMN [order]"
‘在表中删除字段