sql的其他语句
***insert***
insert into table_name (Stock_name,Stock_number) value ("xxx","xxxx")
insert into table_name (Stock_name,Stock_number) value (select Stockname , Stocknumber from Stock_table2)
***update***
update table_name set Stockname = "xxx" [where Stockid = 3]
***delete***
delete from table_name where Stockid = 3
truncate table_name ----------- 删除表中所有行,仍保持表的完整性
drop table table_name --------------- 完全删除表
***alter table*** --- 修改数据库表结构
alter table database.owner.table_name add column_name char(2) null .....
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