选择一个数据库和一个表,收到sintaxe SQL:添加字段,修改字段,Avg,计数,创建索引,创建,删除,层次分明,IndexUnique DistinctRow,滴,滴,滴字段索引表,集团,在,在,插入,最大值、最小值、订单、选择,StDevP StDev、总和、顶部、更新-Select a database and a table, received sintaxe SQL: add fields, modify the fields, Avg, Count, create an index, create, delete, structured IndexUnique The DISTINCTROW, drip, drip, drip field index table, the Group, in insert, maximum, minimum, order, select StDevP StDev sum of the top profile