CS3402 Introduction to SQL

SQL

  • DDL: Create Table, Drop Table 
  • DML: Select, Insert, Delete, Update

Select Col_1,Col_2,...,Col_n    -     what to return

From Rel_1,Rel_2,...,Rel_m    -      relation

Where Boolean Condition      -     combine filter

 

posted @ 2018-01-30 23:35  Charonnnnn  阅读(123)  评论(0编辑  收藏  举报