Jennifer Widom SQL Data Modification Statements

Jennifer Widom Insert Into Table Values(A 1,A 2,…,A n ) SQL: Modifications Inserting new data (2 methods) Insert Into Table Select-Statement

Jennifer Widom Delete From Table Where Condition SQL: Modifications Deleting existing data

Jennifer Widom SQL: Modifications Updating existing data Update Table Set Attr = Expression Where Condition

Jennifer Widom SQL: Modifications Updating existing data Update Table Set A 1 =Expr 1,A 2 =Expr 2,…,A n =Expr n Where Condition Demo: simple college admissions database College(cName,state,enrollment) Student(sID,sName,GPA,sizeHS) Apply(sID,cName,major,decision)